US1590073A - Apparatus for distributing liquids by rotary spindles - Google Patents

Description

June 22 1926.

M. BHRKHGT APPARATUS FOR DISTRIBUTING LIQUIDS BY ROTARY SPINDLES Filed $epi 19. 1921 far Patented June 22, 1926.

UNITED STATES 1,590,073 PATENT OFFICE.

MARC BIRKIGT, OF BOIS COLOMBES, FRANCE.

APPARATUS FOR DISTRIBUTING LIQUIDS BY RQTARY SPINDLES.

Application filed September 19, 1921, Serial No. 501,854, and in Belgium October 21, 1920.

The invention relates to a device for distributing liquids by means of rotating shafts, in which the liquid admission is divided into two channels. The invention is more particularly applicable to the lubrication of internal combustion engines.

7 The invention comprises rotating a shaft having a large bore and a centrally arranged tube coaxial with the bore in the rotating shaft which is provided at the point of admission of the lubricatingoil with two series of oblique oil admission passages which open into different transverse planes in the bore, while a ring closely fitted over the central tube and closely fitting within the large bore, separates theoutlets of the first series of passages from the outlets of the second series of passages so that the first series of passages feed the annular space between the large bore and the central tube and the second series of passages feed independently therefrom the central tube. Consequently the lubrication delivery openings which, connected with the central tube, are furthest away from the oil feeding point are provided with lubricating mate rial separately and independently from the nearer openings which are connected with the large bore.

The invention is more particularly described with reference to the accompanying drawings, in which:

Fig. 1 shows a part section of an internal combustion engine embodying the invention, said section being taken substantially through the axis of the cam shaft of the engine.

Fig. 2 shows the said cam shaft rotated through Referring to the drawings the valves 1 are arranged in a straight line parallel with the crank shaft of the engine (not shown), and the cams 2 which control the valves are carried by the shaft 3 which is also arranged with its axis parallel to the said crank shaft.

The mechanism for driving the cam shaft comprises a pair of bevel pinions 4 and 5 mounted, respectively, on one end of the said cam shaft 3, and on the corresponding end of a vertical shaft 6.

The parts of the engine, for instance, the front and rear bearings 7 and 8 of the cam shaft, the intermediate bearing 9, the cams and valves, as well as the said vertical shaft 6, are lubricated by means of an axial bore 10 formed in the shaft3 and having radial holes 11 located along the cam shaft and communicating with said bore. A. pump or other suitable device forces the lubricant at a suitable pressure into the axial bore through a conduit 18 formed in the front end bearing 7.

The cam shaft 3 is so constructed that its axial conduit is of a comparatively large diameter except at the end which is mounted in the rear bearing 8. The shaft 3 has also its front end tapped in, to receive a plug 12, preferably held therein by a screw connection. cam shaft which rests in the rear bearing is considerably reduced in diameter as compared with the bore 10 and is preferably coaxial with said bore 10. y

Inside the shaft 3 is arranged a central tube 13, the outside diameter of which is equal to the inside diameter of the bore of reduced diameter in the shaft 3. The central tube 13 is of such a length that, after it has been mounted with its rear end i in the bore of reduced diameter in the rear part of the shaft 3, the plug 12 bears against its front edge; 7

The shaft 3 is provided at its front end. w1th two sets or series of oblique oil ad- ' mission passages 14 and 15, the inner orifices of the bores 14 opening in a different transverse plan from the inner orifices of V I the bores 15, the first series being inclined towards the front end of the shaft and the otherseries being inclined in the opposite 'directlon.

A series of notches 16 is formed in the front end of the bore 10, these notches formingpassageways between the bore of the. shaft and the tube 13. A washer 17 embracing the tube 13 is placed tightly on the front part of the axial bore 10 of the shaft 3 so that, when the said tube is in place, a tight joint is formed between the inner wall of the axial bore 10 and the exterior of the tube 13. This washer is so arranged that it The bore of that portion of the h separates the outlets of the passages 14 and the outlets of the passages 15. Said passages 14 and 15 are thus so arranged so that 1 they are in communication with the conduit 18 and preferably extend at an angle to each other. Thus, when the engine is running, a division of the lubricant takes place at the point where the lubricant escapes from the conduit 18, and it passes into two streams, one of which traverses the passage let in communication with the tube 13 and easily reaches the rear end of the shaft 3, and

the other of which traverses the assa es 15 1D and. passes into the comparatively narrow annular space formed by the outer wall of the central tube 13 and the inner wall of the .bore 10 of the cam shaft, so that the oil the construction described, but comprises any modifications which are within the scope of the claims.

What is claimed as new is:

l. A device of the character described, comprising a shaft mounted in bearings and having a central bore provided with an opening at one end and a smaller bore coaxial with and prolonging said first-named bore at the opposite end of the latter, the end of said shaft having said smaller bore extending within one of the end bearings, a central tube extending lengthwise of the said larger bore coaxially with the latter and communicating with said smaller bore, a plug closing the open end of the larger bore, a washer tightly fitting between said larger bore and the exterior of said central tube and dividing the annular space between said larger bore and the central tube into a long annular space and a shorter annular space, said shorter annular space having communi cation with said central tube, the wall of said shaft having feeding passageways communieating on one side ofthe said washer with said shorter annular space and ,on the other side of said washerwith said longer annular-space, said shaft also having radial lubricant-distributing openings through'the walls 'of its parts of larger and smaller bore.

2. In a device of the character described, a shaft mounted in a plurality of bearings and having coaxial channels extending longitudinally thereof, including a central channel and an outer channel, the central channel extending substantially from one end of said shaft to the other end and the outerchannel being divided into two parts,

one of said parts communicating with the 3. In a device of the character described,-

a shaft mounted in a plurality of bearings, said shaft having concentric channels co axial therewith and also having passageways leading from each of said channels to separatebearinga'and means for dis-' tributing oil .independently to said channels.

4. A device of the character described,

comprising a shaft mounted in bearings,

said shaft having acentral bore provided with an opening in one end and also having a smaller bore coaxial with and prolonging said first-named bore, removable means for closing the end opening of said first-named bore, a tube of smaller diameter than said first-named bore extending longitudinally of the latter and fitting the end of the'smaller bore, said tube segregating the smaller bore from the annular space surrounding said tube, means for supplying oil from one of the bearings to said central tube and to. said annular space adjacent oneend thereof, means for distributing oil from said annular space to the bearings adjacent said su ply means, and means. for distributing oil rom said smaller bore to the bearings remote from said supply means.v

In testimony whereof I have signed my name to this specification.

MARC BIRK'IGT.

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