US3224174A - Air-feed device for carburetors - Google Patents

Air-feed device for carburetors Download PDF

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US3224174A
US3224174A US241068A US24106862A US3224174A US 3224174 A US3224174 A US 3224174A US 241068 A US241068 A US 241068A US 24106862 A US24106862 A US 24106862A US 3224174 A US3224174 A US 3224174A
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air
screen
unit
conical element
egress
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US241068A
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James A Erbstoesser
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10013—Means upstream of the air filter; Connection to the ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10262—Flow guides, obstructions, deflectors or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/14—Combined air cleaners and silencers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/161—Arrangement of the air intake system in the engine compartment, e.g. with respect to the bonnet or the vehicle front face
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/28—Carburetor attached

Definitions

  • This invention relates to the air intake tubes of carburetors, and more particularly to the means for treating the air entering therein.
  • an accessory called an air cleaner is mounted on the air intake tube to serve as the means referred to; and the main function of this accessory is to check the passage of dust particles and foreign matter into the intake tube.
  • Some air cleaners employ screens for this purpose, others and oil content, and still others both of these facilities.
  • the conventional air cleaner contains tortuous or deep undulating passages in its annular region, where atmospheric air enters for travel toward the central region of the air cleaner, so that such travel extends in opposite directions before the air reaches that region for passage into the air intake tube of the carburetor. Since air cleaners are one foot or larger in diameter, it follows that their peripheral walls and internal partitions present a considerable surface resistance to the air currents drawn through the air cleaner, causing more fuel to be drawn into the carburetor than is necessary for the efficient operation of the engine. This condition also creates carbon deposits in the engine cylinders.
  • a further object is to provide an air feed device formed with an outer chamber which receives atmospheric air in a spacious entrance and leads it with a direct circular motion into the center region of the device for communication with the air intake tube.
  • Another object is to form the device with a receiving chamber having an opening in front when the device is installed in a motor car, such opening being in the direct path of forced air currents from the engine fan.
  • An additional object is to design the top portion of the device in a manner to utilize the forced air currents from the engine fan for creating a partial vacuum in the region where air enters the device, in order to intensify the flow and increase the volume of such air.
  • a still further object is to provide means within the device which exert a gradual centering and equalizing influence on the air directed toward the intake tube, with a view to maintaining a uniform and steady airfeed into the same.
  • a further object is to incorporate a screening element between the receiving and feeding zones of the device.
  • FIG. 1 is a fragmental side elevation of an engine installation in a motor car showing the air-feed device mounted above the carburetor;
  • FIG. 2 is an enlarged longitudinal section of the device
  • FIG. 3 is a fragmental top view, partly broken away
  • FIG. 4 is a front view
  • FIG. 5 is a view of a modification, partly in section.
  • the air-feed device is preferably circular in form, and consists mainly of an upper unit 15 and a lower one 16, the material of the units being sturdy sheet metal.
  • the unit 15 is of toroidal form and open on the under "ice side, one p0rtion-the frontal one when the device has been installed-being shallow, as defined at 18, while the rear portion depends with a rounded wall 19 to the extent indicated at 21.
  • the center outer region of the upper unit is closed by a top plate 15a; and a disc 23 forms a bottom, these parts adding to the rigidity of the upper unit.
  • the lower unit 16 is centered within the upper one, and has a frusto-conical or funnel-shape.
  • the inclination of the funnel wall with respect to the axis thereof is preferably 45 degrees, as illustrated, although the angle may be varied slightly under different conditions.
  • the upper end of the unit 16 receives a ring 25 with a hub 25a and spider 2512 as a frame for a fine layer of wire netting 27, the ring being secured removably to the unit 16 by clips 28 or other suitable means.
  • the framed netting makes a stiff and sturdy air screen or filter.
  • the center disc 23 When the device is assembled, the center disc 23 rests on the screen 25, and the latter therefore serves to support the upper unit 15 in the position of a hood around the lower one.
  • the screen receives a downwardly-pointed cone 32 of solid metalor other suitable material underneath the hub 25a; and the sides of the cone form a downward continuation of the inner wall 15b of the upper unit 15 to extend the curvature thereof to a point.
  • the plate 15a and disc 23 are joined by a vertical tubular web 33, which is tapped for threading the upper unit on a center screw 3211 rising from the cone 32.
  • a center screw 3211 rising from the cone 32.
  • a wing nut 35 is applied to the upper end of the screw in order to counteract tendencies of the upper unit to turn or loosen from vibration.
  • the lower unit 16 terminates at the bottom with a center rim 16a, which is of a diameter to slide over the mouth of the intake tube 12, and is split at 16b for fastening to the tube by a clamp 37.
  • the funnelshaped unit 16 may be made with a hollow wall to receive a conduit 38 leading from a box 39 attached to the exhaust manifold 10a of the engine 10.
  • a branch 38a leading upwardly into the conduit may be flared at its front end, as shown at 38b, to utilize forced air from the conduit 38 into the wall of the unit 16.
  • the latter will have an escape vent 1612 at a remote point to maintain a circulation of warm air in the wall space.
  • the present device responds to the suction in the carburetor from a wide environment, with a view to feeding an increased volume of air to the carburetor.
  • the wall 19 is wide open toward the front to receive the direct draft of air from the engine fan; and the sides and rear of such wall pocket the air and deflect it gradually by the curvature of the wall in upward direction.
  • the air currents rounding the center curves of the unit 15 are joined by air currents entering from below at the front and sides, due to the partial vacuum created below the unit 15 by the pressure of the air draft or air-foil from the fan over the curved front and sides of the unit 15.
  • An air feed device for attachment to the air-intake suction tube of a carburetor of an internal combustion engine, comprising in combination, an upper unit connected to a lower unit;
  • said lower unit comprising an upwardly flared, frustoconical element having upper and lower ends providing air-ingress and air-egress portions,
  • said upper unit comprising a toroidal-shaped element having a lower portion cut-away to provide an airinlet opening and including an arcuate inner surface originating from below a plane passing through said screen and in spaced relation from the outer periphery of said screen and continuing in overlying relation above said screen, said arcuate surface converging axially toward said conical element and substantially merging into the outer surface of the upper portion of said conical element.
  • An air feed device as claimed in claim 1 in which said frusto-conical element includes a hollow peripheral wall forming a chamber, and an air-inlet scoop means communicating with said chamber for receiving heated air whereby air moving through said air feed device is in heat exchange relation with said heated air and is preheated.

Description

D 1965 J; A. ERBSTOESSER 3,224,174
AIR-FEED DEVICE FOR CARBURETQRS 2 Sheets-Sheet 1 Filed Nov. 29, 1962 2 J14. Eris iaesser INVENTOR flfz onzqys.
D 1955 J; A. ERBSTOESSER 3,224,174
AIR-FEED DEVICE FOR CARBURETORS 2 Sheets-Sheet 2 Filed NOV. 29, 1962 IA fffisz oesser INVENTOR.
2 4414 f/QZ/wv 7 United States Patent 3,224,174 AIR-FEED DEVHCE FUR CARBURETORS James A. Erbstoesser, (Ihieago, 111., assignor of one-third to Stevens, Lehrer & Stevens, and one-third to isadore M. Bernstein, both of Chicago, Ill.
Filed Nov. 29, 1962, Ser. No. 241,068 2 Claims. (Cl. 55-418) This invention relates to the air intake tubes of carburetors, and more particularly to the means for treating the air entering therein. Usually, an accessory called an air cleaner is mounted on the air intake tube to serve as the means referred to; and the main function of this accessory is to check the passage of dust particles and foreign matter into the intake tube. Some air cleaners employ screens for this purpose, others and oil content, and still others both of these facilities. However, the conventional air cleaner contains tortuous or deep undulating passages in its annular region, where atmospheric air enters for travel toward the central region of the air cleaner, so that such travel extends in opposite directions before the air reaches that region for passage into the air intake tube of the carburetor. Since air cleaners are one foot or larger in diameter, it follows that their peripheral walls and internal partitions present a considerable surface resistance to the air currents drawn through the air cleaner, causing more fuel to be drawn into the carburetor than is necessary for the efficient operation of the engine. This condition also creates carbon deposits in the engine cylinders.
In view of the above condition, it is one object of the present invention to replace the conventional air cleaner with an air-feed device which eliminates narrow or undulating passages presenting resistance to the travel of the air toward the air intake tube of the carburetor.
A further object is to provide an air feed device formed with an outer chamber which receives atmospheric air in a spacious entrance and leads it with a direct circular motion into the center region of the device for communication with the air intake tube.
Another object is to form the device with a receiving chamber having an opening in front when the device is installed in a motor car, such opening being in the direct path of forced air currents from the engine fan.
An additional object is to design the top portion of the device in a manner to utilize the forced air currents from the engine fan for creating a partial vacuum in the region where air enters the device, in order to intensify the flow and increase the volume of such air.
A still further object is to provide means within the device which exert a gradual centering and equalizing influence on the air directed toward the intake tube, with a view to maintaining a uniform and steady airfeed into the same.
A further object is to incorporate a screening element between the receiving and feeding zones of the device.
A better understanding of the invention may be gained by reference to the accompanying drawings, in which:
FIG. 1 is a fragmental side elevation of an engine installation in a motor car showing the air-feed device mounted above the carburetor;
FIG. 2 is an enlarged longitudinal section of the device;
FIG. 3 is a fragmental top view, partly broken away;
FIG. 4 is a front view; and
FIG. 5 is a view of a modification, partly in section.
Referring specifically to the drawings, denotes the engine of the motor car, 11 its carburetor, 12 the airintake tube of the latter, and 13 the engine fan.
The air-feed device is preferably circular in form, and consists mainly of an upper unit 15 and a lower one 16, the material of the units being sturdy sheet metal.
The unit 15 is of toroidal form and open on the under "ice side, one p0rtion-the frontal one when the device has been installed-being shallow, as defined at 18, while the rear portion depends with a rounded wall 19 to the extent indicated at 21. The center outer region of the upper unit is closed by a top plate 15a; and a disc 23 forms a bottom, these parts adding to the rigidity of the upper unit.
The lower unit 16 is centered within the upper one, and has a frusto-conical or funnel-shape. The inclination of the funnel wall with respect to the axis thereof is preferably 45 degrees, as illustrated, although the angle may be varied slightly under different conditions. The upper end of the unit 16 receives a ring 25 with a hub 25a and spider 2512 as a frame for a fine layer of wire netting 27, the ring being secured removably to the unit 16 by clips 28 or other suitable means. The framed netting makes a stiff and sturdy air screen or filter.
When the device is assembled, the center disc 23 rests on the screen 25, and the latter therefore serves to support the upper unit 15 in the position of a hood around the lower one. The screen receives a downwardly-pointed cone 32 of solid metalor other suitable material underneath the hub 25a; and the sides of the cone form a downward continuation of the inner wall 15b of the upper unit 15 to extend the curvature thereof to a point.
The plate 15a and disc 23 are joined by a vertical tubular web 33, which is tapped for threading the upper unit on a center screw 3211 rising from the cone 32. When such unit has been screwed down, it fastens the cone to the screen; and the cone therefore becomes joined rigidly to the upper unit. However, a wing nut 35 is applied to the upper end of the screw in order to counteract tendencies of the upper unit to turn or loosen from vibration.
The lower unit 16 terminates at the bottom with a center rim 16a, which is of a diameter to slide over the mouth of the intake tube 12, and is split at 16b for fastening to the tube by a clamp 37.
The present device does not require that the air entering it be warm, although this will improve the operation of the engine. Ordinarily, the air in the engine compartment is quite warm during the travel of the motor car. However, a modified form of the device, shown in FIG. 5, is more suitable for winter driving. Thus, the funnelshaped unit 16 may be made with a hollow wall to receive a conduit 38 leading from a box 39 attached to the exhaust manifold 10a of the engine 10. A branch 38a leading upwardly into the conduit may be flared at its front end, as shown at 38b, to utilize forced air from the conduit 38 into the wall of the unit 16. The latter will have an escape vent 1612 at a remote point to maintain a circulation of warm air in the wall space.
It will now be apparent that the present device responds to the suction in the carburetor from a wide environment, with a view to feeding an increased volume of air to the carburetor. Thus, the wall 19 is wide open toward the front to receive the direct draft of air from the engine fan; and the sides and rear of such wall pocket the air and deflect it gradually by the curvature of the wall in upward direction. Then the air currents rounding the center curves of the unit 15 are joined by air currents entering from below at the front and sides, due to the partial vacuum created below the unit 15 by the pressure of the air draft or air-foil from the fan over the curved front and sides of the unit 15. Such front and the body of the unit 16as seen in FIG. 4meet water-spray and dust that may enter the engine compartment from the front during inclement or stormy weather, and check such spray and dust from entering the carburetor by way of the airfeed device. In the present case a simple structure is used for receiving a relatively large volume of air and directing it into the intake tube of the carburetor. Further, the wide curvature of the top chamber of the upper unit promotes the inward flow of air with a minimum of surface friction, while the cone 32 and converging wall of the lower unit train the flowing and cross-currents of air with a centering and uniform flow into the carburetor. The action just described makes for a forced air-feed responsive with both speed and ample volume to augment the regular flow induced by carburetor suction. As a result, the demand for fuel is lessened considerably, and a marked saving thereof accomplished.
While I have described the invention and its modification in specific terms, various further changes and refinements may be made therein without departing from the principle of the invention, and I reserve the right to employ all such changes and refinements as may fall within the scope and spirit of the appended claims.
I claim:
1. An air feed device for attachment to the air-intake suction tube of a carburetor of an internal combustion engine, comprising in combination, an upper unit connected to a lower unit;
said lower unit comprising an upwardly flared, frustoconical element having upper and lower ends providing air-ingress and air-egress portions,
means on said lower air-egress portion for removably mounting the airfeed device on the air-intake suction tube, a foraminous screen removably secured transversely over the air-ingress portion of said frusto-c-onical element; an inverted conical element depending axially from the center of said screen and extending substantially to the air-egress portion,
said upper unit comprising a toroidal-shaped element having a lower portion cut-away to provide an airinlet opening and including an arcuate inner surface originating from below a plane passing through said screen and in spaced relation from the outer periphery of said screen and continuing in overlying relation above said screen, said arcuate surface converging axially toward said conical element and substantially merging into the outer surface of the upper portion of said conical element.
2. An air feed device as claimed in claim 1 in which said frusto-conical element includes a hollow peripheral wall forming a chamber, and an air-inlet scoop means communicating with said chamber for receiving heated air whereby air moving through said air feed device is in heat exchange relation with said heated air and is preheated.
References Qited by the Examiner UNITED STATES PATENTS 5,538 4/ 1848 Connelley -410 1,296,853 3/1919 Roots. 1,345,405 7/ 1920 Ricketts. 1,373,466 4/ 1921 Tweit 55-490 X 1,430,066 9/ 1922 Evans. 1,638,451 8/1927 Nixon 55-463 1,650,569 11/ 1927 Nickle. 1,827,798 10/1931 Murray 55-46 X 1,864,201 6/1932 Kegerreis et al. 55-313 1,934,311 11/1933 Kegerreis et a1 55-416 X 2,058,932 10/ 1936 Wilson. 2,193,116 3/1940 Smith 55-418 X 2,834,419 5/1958 Sebok 55-315 X 2,933,152 4/1960 Carpenter et al. 55-410 X FOREIGN PATENTS 109,896 2/ 1940 Australia.
447,061 3/ 1948 Canada.
730,624 5/ 1932 France.
899,943 9/ 1944 France.
307,168 3/ 1929 Great Britain.
510,856 1/1955 Italy.
HARRY B. THORNTON, Primary Examiner.
ROBERT F. BURNETT, Examiner.
D. TALBERT, Assistant Examiner.

Claims (1)

1. AN AIR FEED DEVICE FOR ATTACHMENT TO THE AIR-INTAKE SUCTION TUBE OF A CARBURETOR OF AN INTERNAL COMBUSTION ENGINE, COMPRISING IN COMBINATION, AN UPPER UNIT CONNECTED TO A LOWER UNIT; SAID LOWER UNIT COMPRISING AN UPWARDLY FLARED, FRUSTOCONICAL ELEMENT HAVING UPPER AND LOWER ENDS PROVIDING AIR-INGRESS AND AIR-EGRESS PORTIONS, MEANS ON SAID LOWER AIR-EGRESS PORTION FOR REMOVABLY MOUNTING THE AIRFEED DEVICE ON THE AIR-INTAKE SUCTION TUBE, A FORAMINOUS SCREEN REMOVABLY SECURED TRANSVERSELY OVER THE AIR-INGRESS PORTION OF SAID FRUSTO-CONICAL ELEMENT; AN INVERTED CONICAL ELEMENT DEPENDING AXIALLY FROM THE CENTER OF SAID SCREEN AND EXTENDING SUBSTANTIALLY TO THE AIR-EGRESS PORTION, SAID UPPER UNIT COMPRISING A TOROIDAL-SHAPED ELEMENT HAVING A LOWER PORTION CUT-AWAY TO PROVIDE AN AIRINLET OPENING AND INCLUDING AN ARCUATE INNER SURFACE ORIGINATING FROM BELOW A PLANE PASSING THROUGH SAID SCREEN AND IN SPACED RELATION FROM THE OUTER PERIPHERY OF SAID SCREEN AND CONTINUING IN OVERLYING RELATION ABOVE SAID SCREEN, SAID ARCUATE SURFACE CONVERGING AXIALLY TOWARD SAID CONICAL ELEMENT AND SUBSTANTIALLY MERGING INTO THE OUTER SURFACE OF THE UPPER PORTION OF SAID CONICAL ELEMENT.
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347028A (en) * 1966-02-23 1967-10-17 James A Erbstoesser Air-feed devices for carburetors
US3881250A (en) * 1972-11-08 1975-05-06 Mcculloch Corp Chain saw filter assembly
US3987862A (en) * 1974-09-25 1976-10-26 Donaldson Company, Inc. Offset air intake hood
US4553961A (en) * 1984-04-18 1985-11-19 Cordis Corporation Suture sleeve with structure for enhancing pacing lead gripping
US4834784A (en) * 1988-09-06 1989-05-30 Textron, Inc. Air filter choke valve method and spitback shield
US4838909A (en) * 1988-09-06 1989-06-13 Textron, Inc. Cartridge air filter and method of making the same
US5314463A (en) * 1991-11-18 1994-05-24 Medtronic, Inc. Bipolar nerve electrode
US5458666A (en) * 1994-10-24 1995-10-17 Miyakata; Yoshihito Filter element of air cleaner unit
US5549085A (en) * 1994-10-14 1996-08-27 Endrigo; David A. Deflector insert for air filters
US7107962B1 (en) 2004-10-27 2006-09-19 Accessible Technologies, Inc. Carburetor hat for forced induction system

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5538A (en) * 1848-04-25 Spakk-arbestek
US1296853A (en) * 1918-10-04 1919-03-11 James Dennis Roots Carbureter.
US1345405A (en) * 1918-12-16 1920-07-06 James R Ricketts Dust-arrester for air-compressors
US1373466A (en) * 1920-08-14 1921-04-05 John A Tweit Spark-arrester
US1430066A (en) * 1918-12-30 1922-09-26 Byron F Everitt Air cleaner
US1638451A (en) * 1926-04-02 1927-08-09 Thomas M Nixon Spark arrester
US1650569A (en) * 1925-09-12 1927-11-22 Elizabeth A Nickle Heat-deflecting device for air registers, etc.
GB307168A (en) * 1928-01-27 1929-03-07 Albert Parker Apparatus for separating grit, dust and the like from smoke and gases
US1827798A (en) * 1930-02-06 1931-10-20 Emslie E Murray Steam drier
US1864201A (en) * 1926-10-02 1932-06-21 Tillotson Mfg Co Air cleaner
FR730624A (en) * 1932-01-28 1932-08-18 air cleaner-fuel diffuser for internal combustion engines
US1934311A (en) * 1927-12-12 1933-11-07 Tillotson Mfg Co Air cleaner
US2058932A (en) * 1929-07-17 1936-10-27 Gen Motors Corp Muffler
US2193116A (en) * 1936-09-17 1940-03-12 Maytag Co Air cleaner
FR899943A (en) * 1942-11-20 1945-06-14 Auergesellschaft Ag Air Defense Shelter Gas Protection Filter
CA447061A (en) * 1948-03-02 Gordon Vokes Cecil Combined dust extractor and filter device
US2834419A (en) * 1954-11-15 1958-05-13 Purolator Products Inc Hood and air cleaner mounting assembly
US2933152A (en) * 1958-07-18 1960-04-19 Arvell A Carpenter Central vacuum cleaning unit

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA447061A (en) * 1948-03-02 Gordon Vokes Cecil Combined dust extractor and filter device
US5538A (en) * 1848-04-25 Spakk-arbestek
US1296853A (en) * 1918-10-04 1919-03-11 James Dennis Roots Carbureter.
US1345405A (en) * 1918-12-16 1920-07-06 James R Ricketts Dust-arrester for air-compressors
US1430066A (en) * 1918-12-30 1922-09-26 Byron F Everitt Air cleaner
US1373466A (en) * 1920-08-14 1921-04-05 John A Tweit Spark-arrester
US1650569A (en) * 1925-09-12 1927-11-22 Elizabeth A Nickle Heat-deflecting device for air registers, etc.
US1638451A (en) * 1926-04-02 1927-08-09 Thomas M Nixon Spark arrester
US1864201A (en) * 1926-10-02 1932-06-21 Tillotson Mfg Co Air cleaner
US1934311A (en) * 1927-12-12 1933-11-07 Tillotson Mfg Co Air cleaner
GB307168A (en) * 1928-01-27 1929-03-07 Albert Parker Apparatus for separating grit, dust and the like from smoke and gases
US2058932A (en) * 1929-07-17 1936-10-27 Gen Motors Corp Muffler
US1827798A (en) * 1930-02-06 1931-10-20 Emslie E Murray Steam drier
FR730624A (en) * 1932-01-28 1932-08-18 air cleaner-fuel diffuser for internal combustion engines
US2193116A (en) * 1936-09-17 1940-03-12 Maytag Co Air cleaner
FR899943A (en) * 1942-11-20 1945-06-14 Auergesellschaft Ag Air Defense Shelter Gas Protection Filter
US2834419A (en) * 1954-11-15 1958-05-13 Purolator Products Inc Hood and air cleaner mounting assembly
US2933152A (en) * 1958-07-18 1960-04-19 Arvell A Carpenter Central vacuum cleaning unit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347028A (en) * 1966-02-23 1967-10-17 James A Erbstoesser Air-feed devices for carburetors
US3881250A (en) * 1972-11-08 1975-05-06 Mcculloch Corp Chain saw filter assembly
US3987862A (en) * 1974-09-25 1976-10-26 Donaldson Company, Inc. Offset air intake hood
US4553961A (en) * 1984-04-18 1985-11-19 Cordis Corporation Suture sleeve with structure for enhancing pacing lead gripping
US4834784A (en) * 1988-09-06 1989-05-30 Textron, Inc. Air filter choke valve method and spitback shield
US4838909A (en) * 1988-09-06 1989-06-13 Textron, Inc. Cartridge air filter and method of making the same
US5314463A (en) * 1991-11-18 1994-05-24 Medtronic, Inc. Bipolar nerve electrode
US5549085A (en) * 1994-10-14 1996-08-27 Endrigo; David A. Deflector insert for air filters
US5458666A (en) * 1994-10-24 1995-10-17 Miyakata; Yoshihito Filter element of air cleaner unit
US7107962B1 (en) 2004-10-27 2006-09-19 Accessible Technologies, Inc. Carburetor hat for forced induction system

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