US20080044279A1 - Adaptor Frame - Google Patents
Adaptor Frame Download PDFInfo
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- US20080044279A1 US20080044279A1 US11/893,567 US89356707A US2008044279A1 US 20080044279 A1 US20080044279 A1 US 20080044279A1 US 89356707 A US89356707 A US 89356707A US 2008044279 A1 US2008044279 A1 US 2008044279A1
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- United States
- Prior art keywords
- adaptor frame
- bearing
- adaptor
- inboard wall
- wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/049—Roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Rolling Contact Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
An adaptor frame comprising an isolated drain path formed in the adaptor frame at a first end of the adaptor frame is disclosed and claimed. An inboard wall is formed in the adaptor frame at the first end and the inboard wall is positioned adjacent an interstitial area. The interstitial area is between a bearing and the first end of the adaptor frame. The inboard wall provides a first limit for the isolated drain path. An outboard wall is formed in the adaptor frame at the first end and is separated from the inboard wall by a predetermined amount along the axial dimension of a shaft passing through the adaptor frame. The outboard wall provides a second limit for the isolated drain path.
Description
- Applicant claim priority under 35 U.S.C. § 119(e) of provisional U.S. Patent Application Ser. No. 60/838,219 filed on Aug. 17, 2006, which is incorporated by reference herein.
- The present invention relates to an adaptor frame and bearing isolator for pumps wherein both the adaptor frame and the bearing isolator have multiple embodiments.
- No federal funds were used to develop or create the invention disclosed and described in the patent application.
- Not Applicable
-
FIG. 1 is a cross-sectional side view of a pump assembly as found in the prior art. -
FIG. 1A is a detailed cross-sectional view of a portion of the pump assembly fromFIG. 1 . -
FIG. 2 is a cross-sectional exploded view of a pump assembly shown inFIG. 1 . -
FIG. 3 is a cross-sectional side view of a pump assembly employing a first embodiment of the present art. -
FIG. 3A is a detailed cross-sectional view of a portion of the pump assembly fromFIG. 3 employing the first embodiment of the present art. -
FIG. 4 is a cross-sectional side view of a pump assembly employing a second embodiment of the present art. -
FIG. 4A is a detailed cross-sectional view of a portion of the pump assembly fromFIG. 4 employing the second embodiment of the present art. -
FIG. 5 is a cross-sectional side view of a pump assembly employing a third embodiment of the present art. -
FIG. 5A is a detailed cross-sectional view of a portion of the pump assembly fromFIG. 5 employing the third embodiment of the present art. -
FIG. 6 is a perspective partial cutaway view of the third embodiment of the present art. -
FIG. 7 is a detailed cross-sectional view of the bearing isolator designed for use with the third embodiment of the present art adaptor frame. -
FIG. 8 is and end view of the third embodiment of the present art adaptor frame. -
FIG. 8A is a cross-sectional side view of the third embodiment of the present art adaptor frame as inFIG. 8 wherein connecting lines betweenFIG. 8 andFIG. 8A correspond to common surfaces. -
FIG. 9 is a cross-sectional side view of a present art bearing isolator engaged with a prior art adaptor frame. -
FIG. 10 is a cross-sectional side view of a prior art bearing isolator engaged with a present art adaptor frame. -
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DETAILED DESCRIPTION - LISTING OF ELEMENTS ELEMENT DESCRIPTION ELEMENT # Bearing Housing 1 Adaptor Frame 2 Pump Casing 3 Pump Assembly 4 Bearing 5 Intentionally Blank 6 Shaft 7 Labyrinth Groove 8 Labyrinth Return Drain 9 Isolated Drain Path 10 Interstitial Area 11 Lubricant 12 Isolated Lubricant Return Passage 13 Lubricant Sump 14 Lubricant Level 15 Rotor 16 O- Ring 17 Bearing Housing/ Adaptor Frame Interface 18 Outboard Wall 19 Present Art Adaptor Frame 20 Stator 21 Inboard Wall 22 Inboard Wall Interior Face 23 Inboard Wall Exterior Face 24 Outboard Wall Interior Face 25 Outboard Wall Exterior Face 26 Bearing Isolator 27 O-ring Groove 28 Contaminant Drain 29 Unitizing Ring 30 Adaptor Frame Groove 31 Intentionally Blank 32 Bearing Isolator Inboard Wall 33 Bearing Isolator Outboard Wall 34 Contaminant Groove 35 Shaft Aperture 36 - Before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments or of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein is for the purpose of description and should not be regarded as limiting. Furthermore, the
bearing isolator 27 used with the presentart adaptor frame 20 includes, but is not limited to, those disclosed in U.S. Pat. Nos. 6,234,489, 6,062,568, 5,378,000, 5,221,095, and 4,175,752, all of which are incorporated herein by reference. By way of example,FIG. 10 shows a priorart bearing isolator 27 installed within the presentart adaptor frame 20. The presentart bearing isolators 27, such as those used in the first and third embodiments (FIGS. 3-3A and 5-8A, respectively), may also be used with priorart adaptor frames 2, as is shown inFIG. 9 . Accordingly, the scope of the presentart bearing isolators 27 is not limited by whether they are engaged with a priorart adaptor frame 2 or a presentart adaptor frame 20. - The term “bearing isolator” as defined herein is meant to include such structures disclosed herein and in the prior art consisting of a
stator 21 and arotor 16 cooperating to protect abearing 5 either through contaminant exclusion, lubricant retention, or both. However, the presentart adaptor frame 20 may also be used without abearing isolator 27, as shown in the second embodiment pictured inFIGS. 4 and 4A . In the second embodiment (explained in detail below), a simple labyrinth seal is used instead of abearing isolator 27. Therefore, the scope of the present invention is not limited by whether abearing isolator 27, simple labyrinth seal, or complex labyrinth seal, are used separately or in any combination thereof. - Referring now to the drawings, wherein like reference numerals designate identical or corresponding parts throughout the several views, a prior art pump assembly 4 and relevant portions thereof is shown in
FIG. 1 .FIG. 1 provides a cross-sectional side view of a typical prior art pump assembly 4, andFIG. 1A provides a detailed view of a portion of the bearing housing/adaptor frame interface 18.FIG. 2 shows the pump assembly 4 fromFIG. 1 exploded into the three primary components of the pump assembly 4: thebearing housing 1,adaptor frame 2, and pump casing 3. Ashaft 7 passes through each portion of the pump assembly 4 and is typically affixed to a pump impeller (not shown) at one end, and to a source of rotational power (not shown) at the opposite end, as is well known to those skilled in the art. - The bearing
housing 1 is typically arranged with at least one bearing 5 positioned between the bearinghousing 1 and theshaft 7, as indicated inFIGS. 1 and 2 . As is well known to those skilled in the art, a portion of thebearing 5 is rotatable with theshaft 7 and a portion is affixed to the bearinghousing 1. In many applications abearing isolator 27 is positioned within theadaptor frame 2 to retainlubricant 12 within thebearing housing 1 and/or to protect the bearing(s) 5 in thebearing housing 1 from external contaminants that may enter thebearing housing 1 from the pump casing 3 or elsewhere. Often the bearinghousing 1 includes alubricant sump 14 filled to aspecific lubricant level 15 with aspecific lubricant 12. Thelubricant 12 serves to lubricate the bearing(s) 5. When theshaft 7 rotates, a portion of the bearing(s) 5 rotate as well, which often causeslubricant 12 to splash around the bearing(s) 5 and potentially migrate away from thebearing housing 1 towards theadaptor frame 2 when thelubricant level 15 is at the appropriate value. This is because anappropriate lubricant level 15 is often high enough to submerge at least a portion of the bearing(s) 5 (seeFIGS. 1 and 1A ). -
FIG. 1A provides a detailed cross-sectional view of a priorart bearing isolator 27 positioned within the bearinghousing 1. In this embodiment of the prior art, thebearing isolator 27 functions to retainlubricant 12 within and exclude contaminants from the bearinghousing 1. Many different types ofbearing isolators 27 exist, as is well known to those skilled in the art.Bearing isolators 27 designed to retainlubricant 12 and exclude contaminants generally include astator 21 and arotor 16, and bearingisolators 27 designed to retain lubricant generally include only astator 21. Therotor 16 is engaged with theshaft 7 and rotatable therewith, and thestator 21 is engaged with theadaptor frame 2. Therotor 16 andstator 21 may be fashioned to form abearing isolator 27 having a plurality of corresponding radial and axial projections and grooves, and may employ a single unitizingring 30 or a plurality of unitizing rings (not shown). The operation ofbearing isolators 27 in such applications is well known to those skilled in the art, and therefore is not explained further herein. - Certain prior
art bearing isolators 27 collectlubricant 12 splashed by thebearing 5 or other rotating components and drain or return thelubricant 12 to thelubricant sump 14, thus preventing escape of thelubricant 12 from the bearinghousing 1 and providinglubricant 12 retention. As taught by the prior art, aseparate bearing isolator 27 was required to be fit and inserted into theadaptor frame 2 in order forlubricant 12 to be returned to the bearinghousing 1. The prior art also required thatlubricant 12 collected in the bearingisolator 27 be drained or returned into the bearinghousing 1 directly against the force and splash oflubricant 12 created by thebearing 5 or other rotating components of the equipment. - In prior art adaptor frames 2,
lubricant 12 collected in thelabyrinth groove 8 and drained from thelabyrinth return drain 9 must first pass through theinterstitial area 11, and then through the isolatedlubricant return passage 13 to reach thelubricant sump 14.Lubricant 12 exiting the bearing isolator 6 through thelabyrinth return drain 9 does so merely by the force of gravity since thelabyrinth return drain 9 is located in the non-rotating portion (i.e., the stator 21) of the bearingisolator 27. Whenlubricant 12 drained from the labyrinth return drain 9encounters lubricant 12 splashed or flung from thebearing 5 or other rotational components, the bearingisolator 27 cannot drainlubricant 12 back to thelubricant sump 14 effectively. This is because placing the bearingisolator 27 adjacent to thebearing 5 or other rotational components with merely aninterstitial area 11 in between, thelubricant 12 splashed or flung from the rotational components impedes the flow oflubricant 12 drained from the bearingisolator 27 when the drainedlubricant 12 is in theinterstitial area 11. That is, there is no structure in the prior art that alleviates the effects the splash or force of lubricant 12 (created by rotational components in the interstitial area 11) has onlubricant 12 drained from the bearingisolator 27 when thatlubricant 12 is in theinterstitial area 11. The centrifugal force and splash thebearing 5 or other rotational components impart tolubricant 12 in theinterstitial area 11 is often greater than the gravitational force imparted to thatlubricant 12. That is, thelubricant 12 draining from the bearingisolator 27 must work against the force and splash oflubricant 12 adjacent thebearing 5 or other rotational components near theinterstitial area 11 to drain properly from both the bearingisolator 27 and theinterstitial area 11. - The failure of the prior art described above is accentuated in certain situations, depending on the
lubricant level 15 in thelubricant sump 14.FIGS. 1 and 1A illustrate an embodiment of the prior art wherein thebearing 5 is rotating in thelubricant level 15, as is typically the situation for this type of configuration. The rotation of thebearing 5 in thelubricant 12 creates a splash oflubricant 12 in theinterstitial area 11 and adversely affects draining oflubricant 12, as described above. Iflubricant 12 in theinterstitial area 11 overcomes the forces imparted to thatlubricant 12 by thebearing 5 or other rotating components, the bearingisolator 27 will then operate properly so thatlubricant 12 may be returned to thelubricant sump 14 by the isolatedlubricant return passage 13 shown inFIG. 1A . Other embodiments of the prior art, which are not shown herein, do not provide an isolatedlubricant return passage 13 and rely simply on thelubricant 12 in theinterstitial area 11 to return to thelubricant sump 14 by draining through thebearing 5. - The various embodiments of the present art, shown in
FIGS. 3-8 and 10, illustrate anadaptor frame 20 that combines the functions of attaching the bearinghousing assembly 1 to the pump casing 3 while providing an improved configuration for returninglubricant 12 to thelubricant sump 14. The presentart adaptor frame 20 may be used with the presentart bearing isolator 27, as shown inFIGS. 5 and 5A , or it may be used with priorart bearing isolators 27, as shown inFIG. 10 . Furthermore, the presentart bearing isolator 27 may be used with prior art adaptor frames 2, as shown inFIG. 9 . All embodiments of the presentart adaptor frame 20 are fashioned with ashaft aperture 36 through which theshaft 7 passes (seeFIG. 8 ), as in prior art adaptor frames 2. - As shown in
FIGS. 3-5 , the presentart adaptor frame 20 utilizes anisolated drain path 10 forlubricant 12 return to improve thelubricant 12 retention function. This improvement results from the shielding effect theinboard wall 22 provides tolubricant 12 drained from thelabyrinth drain 9. Theimproved lubricant 12 retention significantly decreases the likelihood oflubricant 12 leakage from the bearinghousing 1, which may ultimately result incatastrophic bearing 5 failure. The presentart adaptor frame 20 shown herein abuts the bearinghousing 1 at the bearing housing/adaptor frame interface 18. O-ring grooves 28 may be fashioned in the presentart adaptor frame 20 and O-rings 17 may be placed within the O-ring grooves 28 to seal the bearing housing/adaptor frame interface 18. Other convenient sealing means known to those skilled in the art may be used without departing from the spirit and scope of the present invention. Sealing the bearing housing/adaptor frame interface 18 preventslubricant 12 from leaking from the bearinghousing 1 along the bearing housing/adaptor frame interface 18. - As noted, the present
art adaptor frame 20 provides anisolated drain path 10 to the isolatedlubricant return passage 13 forlubricant 12 drained from the bearingisolator 27. Theisolated drain path 10 is generally formed by aninboard wall 22 and anoutboard wall 19 fashioned in the presentart adaptor frame 20. As shown in the first embodiment (FIGS. 3 and 3A ), a portion of theoutboard wall 19 may be formed by the bearing isolator 27 (either a portion of thestator 21 or a portion of the rotor 16). A portion of thestator 21 forms a portion of theoutboard wall 19 in the first embodiment and is positioned adjacent theadaptor frame groove 31. The annularadaptor frame groove 31 collects and drainslubricant 12 to the isolated drain path 10 (SeeFIG. 8 ). This configuration provides anisolated return path 10 forlubricant 12 drained from the bearingisolator 27 that spans the entire distance from the bearingisolator 27 to thelubricant sump 14. Theisolated drain path 10 protects thelubricant 12 drained from the bearingisolator 27 from anylubricant 12 splash and force imparted by thebearing 5 or other rotating components.Lubricant 12 splash and other force is still present in theinterstitial area 11, but theinboard wall 22 prevents the splash and other forces from affectinglubricant 12 drained from the bearingisolator 27. Removing the influence of splashinglubricant 12 uponlubricant 12 in close proximity to the bearingisolator 27 decreases the likelihood oflubricant 12 leakage though the bearingisolator 27 due to moreeffective lubricant 12 drainage from the bearingisolator 27. This also improves pump reliability due to increased efficiency oflubricant 12 retention.Lubricant 12 splashed or flung from the bearing(s) 5 contacts the inboardwall exterior face 24 as the inboard wall shields thelubricant 12 drained from the bearingisolator 27. The cross-sectional shape of theisolated drain path 10 and theadaptor frame groove 31 may be of any convenient shape depending on the application, and the distance from theshaft 7 at which theisolated drain path 10 connects to the isolatedlubricant return passage 13 will vary depending on the specific embodiment. In the third embodiment (shown inFIGS. 5 , 5A, 6, 7, and 8, and explained in greater detail below) theisolated drain path 10 is rounded in a semi-circular shape (as shown inFIG. 7 ) rather than cylindrical. The semi-circular shape helps to funnel thelubricant 12 drained from the bearingisolator 12 into the isolatedlubricant return passage 13. Other shapes may be used for theadaptor frame groove 31 or isolateddrain path 10 in other embodiments not shown herein. The axial dimension (along the axis of the shaft 7) of theisolated drain path 10 is defined by theinboard wall 22 and theoutboard wall 19. The inboard wall interior face provides a first limit for the axial dimension of theisolated drain path 10, and the outboard wallinterior face 25 provides a second limit for the axial dimension of theisolated drain path 10. The inboardwall exterior face 24 comprises a portion of the bearing housing/adaptor frame interface 18 and is adjacent theinterstitial area 11. The outboardwall exterior face 26 is adjacent the interior portion of the presentart adaptor frame 20. - In the embodiment shown in
FIGS. 3 and 3A , the bearingisolator 27 is designed for bothlubricant 12 retention and contaminant exclusion.FIG. 3A provides a detailed view of the presentart bearing isolator 27 and presentart adaptor frame 20 wherein thelabyrinth groove 8 essentially forms a portion of theisolated drain path 10 in the form of anadaptor frame groove 31, which is built into the present art adaptor frame 20 (as best seen fromFIGS. 3A and 8 ). Contaminants are collected in thecontaminant groove 35 and expelled from the bearingisolator 27 through thecontaminant drain 29. In this embodiment, no separatelabyrinth return drain 9 orlabyrinth groove 8 is required (as it is for the bearing isolator shown inFIG. 1A ), andlubricant 12 drains from the bearingisolator 27 directly into theadaptor frame groove 31 or theisolated drain path 10. Theisolated drain path 10 is connected to or interfaces with the isolatedlubricant return passage 13 to provide for a completely isolated conduit from the bearingisolator 27 to thelubricant sump 14. The bearing housing/adaptor frame interface 18, which is located between theadaptor frame 2 and thebearing frame 1, may be sealed with an O-ring 17 or similar device to prevent any communication between theinterstitial area 11 and the isolatedlubricant return passage 13. - As noted above, in the first embodiment of the present
art adaptor frame 20 shown inFIGS. 3 and 3A , a portion of theoutboard wall 19 is formed by thestator 21. In other embodiments of the presentart adaptor frame 20 not shown herein, theoutboard wall 19 may be composed of multiple portions of either thestator 21 orrotor 16 alone, or thestator 21 androtor 16 in combination. - In the second embodiment of the present
art adaptor frame 20 shown inFIGS. 4 and 4A , the presentart adaptor frame 20 is not used in conjunction with a bearingisolator 27 and instead employs a simple labyrinth seal, as is known to those skilled in the art. Therefore, the entireoutboard wall 19 andinboard wall 22 are fashioned in the presentart adaptor frame 20 and no portion of either theinboard wall 22 oroutboard wall 19 is formed by a bearingisolator 27. In this embodiment, the presentart adaptor frame 20 serves to retainlubricant 12 in the same manner as a bearingisolator 27 used forlubricant 12 retention, but there is no contaminant exclusion functionality other than the close clearance that may be fashioned between theshaft 7 and theoutboard wall 19 andinboard wall 22. That is, in the second embodiment the presentart adaptor frame 20 functions similarly to a bearingisolator 27 having only astator 21. However, to providelubricant 12 retention, noseparate bearing isolator 27 is required. As in the first embodiment, theinboard wall 22 in the second embodiment shieldslubricant 12 in theisolated drain path 10 fromlubricant 12 splash or centrifugal force of the bearing(s) 5. Consequently,lubricant 12 retention and resistance to leakage are improved compared to prior art adaptor frames 2. The bearing housing/adaptor frame interface 18 in the second embodiment may be sealed in any manner as the first embodiment may be sealed. - A third embodiment of the present
art adaptor frame 20 and bearingisolator 27 is shown inFIGS. 5-7 . The bearingisolator 27 in the third embodiment comprises a portion of both theinboard wall 22 andoutboard wall 19, indicated as the bearing isolatorinboard wall 33 and bearing isolatoroutboard wall 34, respectively (best shown inFIGS. 5A and 6 ). The bearing isolatorinboard wall 33 and bearing isolatoroutboard wall 34 form alabyrinth groove 8 in thestator 21, which functions similarly to theadaptor frame groove 31 in the first embodiment.Lubricant 12 may be collected in thelabyrinth groove 8 and drained from the bearingisolator 27 through thelabyrinth return drain 9 into theisolated drain path 10, and subsequently returned to thelubricant sump 14. As in the first and second embodiments,lubricant 12 drained from the bearingisolator 27 is shielded from thelubricant 12 splash or centrifugal force caused by the bearing(s) 5. The third embodiment of the presentart adaptor frame 20 does not utilize anadaptor frame groove 31 as do the first and second embodiments; rather, the third embodiment utilizes alabyrinth groove 8 in thestator 21 of the bearingisolator 27. The presentart bearing isolator 27 in the third embodiment also utilizes acontaminant groove 35 to exclude contaminants and expel them from the bearingisolator 27 through thecontaminant drain 29. The bearing housing/adaptor frame interface 18 in the third embodiment may be sealed in any manner as the first embodiment may be sealed. - In all embodiments of the present
art adaptor frame 20, thelabyrinth groove 8 may be a single groove or may be formed through a plurality of grooves. Furthermore, a portion of the bearingisolator 27 may be used to form a portion of theadaptor frame groove 31, as in the first embodiment shown inFIGS. 3 and 3A , or the bearingisolator 27 may be fashioned with alabyrinth groove 8 as in the third embodiment shown inFIGS. 5 , 5A, 6, and 7. As described herein,FIGS. 3 , 3A, 5, 5A, 6, and 7 illustrate embodiments of the presentart bearing isolator 27 having contaminant exclusion andlubricant 12 retention capability. The type of bearingisolator 27 employed with the presentart adaptor frame 20 in no way limits the scope of the invention relating to the presentart adaptor frame 20. - It should be noted that the present invention is not limited to the specific embodiments pictured and described herein, but is intended to apply to all similar adaptor frames facilitating improved return of
lubricant 12 to thelubricant sump 14. Modifications and alterations from the described embodiments will occur to those skilled in the art without departure from the spirit and scope of the present invention.
Claims (18)
1. An adaptor frame comprising:
a. an isolated drain path formed in said adaptor frame at a first end of said adaptor frame;
b. an inboard wall formed in said adaptor frame at said first end, wherein said inboard wall is positioned adjacent an interstitial area, wherein said interstitial area is between a bearing and said first end of said adaptor frame, and wherein said inboard wall provides a first limit for said isolated drain path; and,
c. an outboard wall formed in said adaptor frame at said first end, wherein said outboard wall is separated from said inboard wall by a predetermined amount along the axial dimension of a shaft passing through said adaptor frame, and wherein said outboard wall provides a second limit for said isolated drain path.
2. The adaptor frame according to claim 1 wherein said adaptor frame first end is fashioned with at least one O-ring groove to engage a bearing housing.
3. The adaptor frame according to claim 1 further defined as not including said outboard wall.
4. The adaptor frame according to claim 1 wherein at least a portion of said inboard wall is formed by a bearing isolator.
5. The adaptor frame according to claim 1 further comprising an annular adaptor frame groove adjacent said inboard wall and said outboard wall, wherein said adaptor frame groove is in fluid communication with said isolated drain path.
6. The adaptor frame according to claim 5 wherein the radial dimension of said adaptor frame groove with respect to said shaft increases on a portion of said adaptor frame groove adjacent said isolated return path
7. The adaptor frame according to claim 1 wherein a radial distance between the ends of said inboard wall and said outboard wall and said shaft is in the range of 0.0001-1.0 inches.
8. The adaptor frame according to claim 1 wherein at least a portion of said inboard wall is formed by a bearing isolator and wherein at least a portion of said outboard wall is formed by said bearing isolator.
9. The adaptor frame according to claim 8 wherein said bearing isolator includes a labyrinth groove, wherein said bearing isolator includes a labyrinth return drain, and wherein said labyrinth return drain is in fluid communication with said isolated drain path.
10. An adaptor frame comprising:
a. a first end fashioned to accept a bearing isolator, wherein said first end is engagable with a bearing housing at a bearing housing/adaptor frame interface, and wherein said bearing isolator is at least capable of retaining lubricant;
b. a second end engagable with a pump casing;
c. an isolated drain path formed in said adaptor frame at said first end, wherein said isolated drain path provides a conduit to return lubricant drained from said bearing isolator to said bearing housing;
d. an inboard wall formed in said adaptor frame, wherein an inboard wall exterior face is oriented adjacent an interstitial area between a bearing and said adaptor frame, wherein an inboard wall interior face provides a first limit for said isolated drain path, and wherein said bearing is installed in said bearing housing; and,
e. an outboard wall formed in said adaptor frame, wherein an outboard wall interior face provides a second limit for said isolated drain path, wherein said outboard wall interior face is adjacent said inboard wall interior face and separated therefrom by a predetermined amount along the axial dimension of a shaft passing through said bearing housing, said adaptor frame, and into said pump casing.
11. The adaptor frame according to claim 10 wherein said adaptor frame first end is fashioned with O-ring grooves to engage said bearing housing at said bearing housing/adaptor frame interface.
12. The adaptor frame according to claim 10 wherein at least a portion of said inboard wall is formed by a bearing isolator.
13. The adaptor frame according to claim 10 further defined as not including said outboard wall.
14. The adaptor frame according to claim 10 further comprising an annular adaptor frame groove adjacent said inboard wall and said outboard wall, wherein the axial dimension of said adaptor frame groove is defined by said inboard wall interior face and said outboard wall interior face, and wherein said adaptor frame groove is in fluid communication with said isolated drain path.
15. The adaptor frame according to claim 10 wherein at least a portion of said inboard wall is formed by a bearing isolator and wherein at least a portion of said outboard wall is formed by said bearing isolator.
16. The adaptor frame according to claim 15 wherein said bearing isolator includes a labyrinth groove, wherein said bearing isolator includes a labyrinth return drain, and wherein said labyrinth return drain is in fluid communication with said isolated drain path.
17. A pump assembly comprising:
a. a pump casing, wherein said pump casing houses an internal portion of a pump, and wherein a shaft passing through at least a portion of said pump casing provides energy to said internal portion of a pump;
b. a bearing housing, wherein said bearing housing is fashioned to accept at least one bearing, wherein said shaft passes through said bearing housing and rotationally engages said at least one bearing;
c. an adaptor frame, wherein said adaptor frame is fashioned to provide an interface between said pump casing and said bearing housing, said adaptor frame comprising:
i. an isolated drain path formed in said adaptor frame at a first end of said adaptor frame, wherein said first end of said adaptor frame is arranged adjacent said bearing housing;
ii. an inboard wall formed in said adaptor frame, wherein said inboard wall is positioned adjacent an interstitial area between said at least one bearing and said adaptor frame, and wherein said inboard wall provides a first limit for said isolated drain path; and,
iii. an outboard wall formed in said adaptor frame, wherein said outboard wall is separated from said inboard wall by a predetermined amount along the axial dimension of said shaft, wherein said shaft passes through said adaptor frame, and wherein said outboard wall provides a second limit for said isolated drain path.
18. A bearing isolator comprising:
a. a stator; and,
b. a rotor, wherein said stator and said rotor cooperate to form said bearing isolator, wherein said bearing isolator includes an inboard wall and an outboard wall, wherein said inboard wall and said outboard wall cooperate to form a labyrinth groove, wherein said labyrinth groove includes a labyrinth return drain that interfaces with an isolated drain path formed in an adaptor frame.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US11/893,567 US20080044279A1 (en) | 2006-08-17 | 2007-08-16 | Adaptor Frame |
PCT/US2007/018209 WO2008021469A2 (en) | 2006-08-17 | 2007-08-16 | Adaptor frame |
TW096130564A TW200817609A (en) | 2006-08-17 | 2007-08-17 | Adaptor frame |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US83821906P | 2006-08-17 | 2006-08-17 | |
US11/893,567 US20080044279A1 (en) | 2006-08-17 | 2007-08-16 | Adaptor Frame |
Publications (1)
Publication Number | Publication Date |
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US20080044279A1 true US20080044279A1 (en) | 2008-02-21 |
Family
ID=39082755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/893,567 Abandoned US20080044279A1 (en) | 2006-08-17 | 2007-08-16 | Adaptor Frame |
Country Status (2)
Country | Link |
---|---|
US (1) | US20080044279A1 (en) |
TW (1) | TW200817609A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120141270A1 (en) * | 2011-09-14 | 2012-06-07 | General Electric Company | Drivetrain and method for lubricating bearing in wind turbine |
EP2662572A1 (en) | 2012-05-09 | 2013-11-13 | Sulzer Pumpen Ag | Sealing arrangement for the lubricant of a ball bearing in a flow machine |
US10203036B2 (en) * | 2015-06-18 | 2019-02-12 | Inpro/Seal Llc | Shaft seal assembly |
Citations (12)
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US2247709A (en) * | 1938-05-31 | 1941-07-01 | Bour Harry E La | Plural stage self-priming centrifugal pump |
US2919148A (en) * | 1957-12-27 | 1959-12-29 | Thompson Ramo Wooldridge Inc | Seal assembly |
US3322476A (en) * | 1965-04-02 | 1967-05-30 | Jess A Lewis | Bushing and seal repair kit and method for installing the same |
US3539270A (en) * | 1968-03-14 | 1970-11-10 | Carrier Corp | Method of and apparatus for lubricating and cooling a rotary shaft seal assembly |
US4268229A (en) * | 1979-04-19 | 1981-05-19 | The Garrett Corporation | Turbocharger shaft seal arrangement |
US4563124A (en) * | 1984-02-24 | 1986-01-07 | Figgie International Inc. | Double suction, single stage volute pump |
US5028205A (en) * | 1989-12-14 | 1991-07-02 | Ingersoll-Rand Company | Oil scavenger system for a seal for a rotary shaft |
US5344291A (en) * | 1993-07-15 | 1994-09-06 | A. W. Chesterton Company | Motor pump power end interconnect |
US5954434A (en) * | 1996-02-19 | 1999-09-21 | Siemens Aktiengesellschaft | Device and process for discharging a liquid lubricant from a bearing configuration |
US6672830B2 (en) * | 1999-10-27 | 2004-01-06 | Environamics Corporation | Vertical pump with oil lubricant; C-seal for pump; and pump with threaded shaft position adjustment |
US6913438B2 (en) * | 1996-05-14 | 2005-07-05 | Environamics | Pump lubrication system including an external reservoir |
US7153093B2 (en) * | 2002-02-23 | 2006-12-26 | Leybold Vacuum Gmbh | Vacuum pump |
-
2007
- 2007-08-16 US US11/893,567 patent/US20080044279A1/en not_active Abandoned
- 2007-08-17 TW TW096130564A patent/TW200817609A/en unknown
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2247709A (en) * | 1938-05-31 | 1941-07-01 | Bour Harry E La | Plural stage self-priming centrifugal pump |
US2919148A (en) * | 1957-12-27 | 1959-12-29 | Thompson Ramo Wooldridge Inc | Seal assembly |
US3322476A (en) * | 1965-04-02 | 1967-05-30 | Jess A Lewis | Bushing and seal repair kit and method for installing the same |
US3539270A (en) * | 1968-03-14 | 1970-11-10 | Carrier Corp | Method of and apparatus for lubricating and cooling a rotary shaft seal assembly |
US4268229A (en) * | 1979-04-19 | 1981-05-19 | The Garrett Corporation | Turbocharger shaft seal arrangement |
US4563124A (en) * | 1984-02-24 | 1986-01-07 | Figgie International Inc. | Double suction, single stage volute pump |
US5028205A (en) * | 1989-12-14 | 1991-07-02 | Ingersoll-Rand Company | Oil scavenger system for a seal for a rotary shaft |
US5344291A (en) * | 1993-07-15 | 1994-09-06 | A. W. Chesterton Company | Motor pump power end interconnect |
US5954434A (en) * | 1996-02-19 | 1999-09-21 | Siemens Aktiengesellschaft | Device and process for discharging a liquid lubricant from a bearing configuration |
US6913438B2 (en) * | 1996-05-14 | 2005-07-05 | Environamics | Pump lubrication system including an external reservoir |
US6672830B2 (en) * | 1999-10-27 | 2004-01-06 | Environamics Corporation | Vertical pump with oil lubricant; C-seal for pump; and pump with threaded shaft position adjustment |
US7153093B2 (en) * | 2002-02-23 | 2006-12-26 | Leybold Vacuum Gmbh | Vacuum pump |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120141270A1 (en) * | 2011-09-14 | 2012-06-07 | General Electric Company | Drivetrain and method for lubricating bearing in wind turbine |
EP2662572A1 (en) | 2012-05-09 | 2013-11-13 | Sulzer Pumpen Ag | Sealing arrangement for the lubricant of a ball bearing in a flow machine |
CN103388628A (en) * | 2012-05-09 | 2013-11-13 | 苏舍泵有限公司 | Sealing device for flow machine |
US20130302160A1 (en) * | 2012-05-09 | 2013-11-14 | Sulzer Pumpen Ag | Sealing arrangement for a flow machine |
US10203036B2 (en) * | 2015-06-18 | 2019-02-12 | Inpro/Seal Llc | Shaft seal assembly |
US11002362B2 (en) * | 2015-06-18 | 2021-05-11 | Inpro/Seal Llc | Shaft seal assembly |
Also Published As
Publication number | Publication date |
---|---|
TW200817609A (en) | 2008-04-16 |
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AS | Assignment |
Owner name: ISOTECH OF ILLINOIS, INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ORLOWSKI, DAVID C.;HOEHLE, NEIL F.;REEL/FRAME:021943/0627;SIGNING DATES FROM 20080319 TO 20080403 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |