US1012332A

US1012332A - Oil-circulatory system or apparatus.

Info

Publication number: US1012332A
Application number: US59241510A
Authority: US
Inventors: Paul Daimler
Original assignee: Daimler Motoren Gesellschaft
Current assignee: Daimler Motoren Gesellschaft
Priority date: 1910-11-15
Filing date: 1910-11-15
Publication date: 1911-12-19
Anticipated expiration: 1928-12-19

Description

1. DAIMLER.

OIL GIRGULATORY SYSTEM 0R APPARATUS. APPLIOATION FILED Nov. 15, 1910.

1,01 2,8321 Patented Dec. 19, 1911. I l 3 SHEETS-BREST 1.

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- l oIL GIRCULATORY SYSTEM (1R-APPARATUS.

. APPLICATION PILEDV NOV. 15, 1910. 1,012,332.,

Patented Da c. 19, 1911.

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-P. DAIMLER. oIL GIRGULATORY SYSTEM 0R APPARATUS.

APPLICATION FILED NOV. 15, 1910.

1,012,332. Patented Dec.19,1911.

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UNITED STATES PATENT OFFICE. PAUL DAIMLER, or UNTEn'rRKHEIMsTur'iGAnT, GERMANY, AssIGivon 'ro THE iInM oF DAIMLER-MoTonEN-GESELLSCHAFT, F UNTEnTnKHEIM-s'rurreanr, vsien.-

MANY.

Specification of Letters Patent.

OIL--CIRCULAJJ'IOBY SYSTEM 0R APPARATUS.

Patented Dec. 19; 1 911.

Application led November 15, 1910. Serial No. 592,415.

To all 'whom 'it may concern:

Be it known that I, PAUL DAIMLER, a subject of the King of Wurttemberg, and resident of Untertrkheim-Stuttgart, in the Kingdom of Wurttemberg, German Empire, have invented certain new and useful Improvements in and Relating to Oil-Circulatory Systems or Apparatus, of which the .following is a specification.

. This invention relates to an oil circulat ing system or arrangement especially ap-r plicable for lubricating the various parts to be lubricated in the motors' of automobiles. In such lubricating arrangements the renewing .of the lubricant or the addition of fresh oil thereto has been eected here'- tofore in such a manner that fresh oil from time to time was supplied to the vessel where- Y provides Iin addition to .the circulating pump, a pump which draws from a fresh oil container and conveys the oil into the pipe that leadsfrom the circulatingpump to the parts to be lubricated. By this arrangementY the fresh oil pump can be so combined with the circulating pump that the piston of the latter at the same time forms a piston valve for the fresh oil pump, and that the fresh oil is conveyed into the pipe for supplying lubricating oil. In order to be able to regulate the feed or fresh oil `at any.

time the stroke of the fresh oil pump may be made adjustable. I

In orde-r to enable this invention to be readily understood reference is made to the accompanying drawings in which:

Figure 1 is a side view of a constructional form of the invention, partly in section. Fig. 2 shows a section through the system or apparatusaccording to thel line A-B of Fig. 1, certain parts being omitted and others broken away. Fig. 3 is a section according to the line C-D of Fig. 2, certain parts being omitted and others broken away. Figs. 4-7 are diagrams illustrating the several pistons of the pump arrangement in various positions.

Referring to Figs. 1-3 the casing a of the circulating pump is provided with three barrels I), c, d.- In the middle barrel c works the piston e of the circulating pump. Thispiston e is driven by `an eccentric. f from the shaft g mounted in suitable bearings ofthe upper portion ofthe casing a. In the barrel d is rovided a piston slidevalve 7i which is suitably worked by an eccentric i from the same shaft g as the piston e. In the barrel b is working a'piston c which receives movement by an eccentric Z from the shaft g. The shaft g isv driven by a pulley m or the like.

The .pistone and the slide-valve h are each-provided with a reduced portion or neck n, o, respectively.' The barrel c is in communication Iby suitable openings p p with the barrel b and at its bottom by the opening 'g with the barrel d. The latter is in communication with a receptacle r, wherein the oilv collects from the various partsto be lubricated. The barrel d` is at or 'near its/middle portion connected with a pipe-s leading to the various parts to be lubricated. The barrel c is at or near its middle portion in communication'with a fresh oil tank t by means of a pipe u.

The working of the apparatus according to the present invention will now be explanned with referencer to Figs. fir-7. In

` ig. 4 the piston e of the circulating pump' isk in the middle of its forcing stroke. The lower part of the piston-valve h closes the passage to the oil collecting receptacle r so that the circulating oil below the piston e is forced by the latter into the lubricantsupply pipes, as indicated by the arrow in Fig. 4. The piston valvev h is here in its lowest position and so also is the piston k of the fresh oil pump. As the piston e moves `still farther and descends from the position shown in Fig. 4 it continues to force the circulating oil into the pipe s. At the same time the piston 7c of the fresh oil pump effects the first part of its suction stroke, and as soon as the reduced portion or neck n in the piston e uncovers the openings or ports p u the piston la sucks in fresh oil from the port u. The several pistons are now in the lposition shown in Fig. 5, where the piston e of the circulating pump is at the end of its pressure stroke. In this position the piston valve h closes the passage v to the oil collecting receptacle 1' and, at the same time, shuts off communication with the port to the'oil supply pipe s, while the fresh oil pump is in the middle position of its suction stroke. During further movement the piston lr: of the fresh oil pump continues to suck,.while the sliding 'piston valve h moves upward so as to open the 'connection between the barrel o of the circulating pumpand the. passage/v which leads to the collecting vessel or receptacle 1'. Consequently, the piston e in lts upward stroke may draw oil from the collecting vessel. Fig. 6 shows the position when the piston 7c of the fresh oil pump has completed its stroke and the piston e of the circulating pump is in the middle of its suction stroke. The fresh oil which has been drawn in by the piston la is now forced into the barrel or cylinder c of the circulating pump, as shown in Fig. 7. When the port or opening g connecting the lower portion of the cylinder or barrel c with the passage 'v or pipe s is uncovered by the piston valve h the fresh oil now contained in the cylinder 0 is forced by the descending piston e to the parts to be lubricated through the pipe s, as indicated by the arrow in Fig.` 7.

It is preferable to provide means for adjusting the stroke of the piston k of the fresh oil pump. In the constructional form illustrated in Fig. 1 an adjustable abutment is shown. The eccentric Z works in a slider rw movable up and down in a frame which is connected by an eye y with the rod of piston k. In the upper bar of the frame fu an abutment e is adjustably mounted by means of a screw. By adjusting the abutment downward in the frame the clearance between the slider w and the abutment z may be reduced and the stroke of the pump increased, and vice versa.

I claim:

1. In an oil circulatory lubricating system, a main pump circulating oil to and from the parts to be lubricated and an auxiliary pump parallel to and arranged at the side of said main pump, said auxiliary pump sucking oily from a fresh oil supply and directly supplying it to said main pump.

2. In an oil circulatory lubricating system, a main pump circulating oil to and from the parts to be lubricated, an auxiliary pump parallel to and arranged at the side ofl -said main pump, said auxiliary pump sucking oil from a fresh oil lsupply and directly supplying it to said main pump, a driving shaft, eccentrics on said shaft for operating the pump -pistons and means for adjusting the stroke of said auxiliary pump comprising a frame connected to the piston ofthe auxiliary pump, ablock sliding in said frame and fitting on the eccentric of the driving shaft, and an adjustable abutment for said block, said abutment being carried by the frame.

3. In an oil circulatory lubricating system, a main pump circulating oil to and from the parts to be lubricated, an auxiliary pump parallel to and arranged at the side of said main pump, said auxiliary pump sucking oil from a fresh oil supply and directly supplying it to said main pump, and a piston valve parallel to-and arranged at the side of said main pump, said piston valve controlling communication between said main pump and the 'oil circuit.

4. In an oil circulatory lubricating ,sysi

tem, a main pump circulating'oil to and from the parts to be lubricated, a fresh oil supply, andan auxiliary pump for sucking oil from said fresh oil supply and supplying the fresh oil to the oil circuit, the piston of said main pump being adapted to control communication between said auxiliary pump and the fresh oil supply.

5. In an oil circulatory lubricating system, a main pump circulating oil to rand from the parts to be lubricated, a fresh oil supply, and an auxiliary pump for sucking oil from said fresh oil supply and supplying the fresh oil to the oil circuit, the piston of said main pump being adapted to control communication between said auxiliary pump and theA oil circuit.

6. In an oil circulatory lubricating system, a main pump circulating oil to and from the partsto be lubricated, a fresh oil supply, and an additional pump for sucking oil from said fresh oil supply and forcing the fresh'oil into the oil circuit, rthe piston of said main pum beingvsuch that communication is cut o between said additional pump and the fresh oil supply, when communication is established between 4the circulating pump and the parts to be lubricated, so as to deliver oil to the latter, and communication established between said additional pump and the fresh oil supply when the circulating pump is cutv ofi' from the parts to be lubricated.

7. In an oil circulatory lubricating system, a pump circulating oil to and from the parts to be lubricated, a fresh oil supply, an additional pump for sucking oil from said fresh oil supply and forcing the fresh oil into the oil circuit, and valve means so arranged that' communication is established In Witness whereof I have hereunto set betvfeenfsaid pumps dlring the pressure my hand in the presence of two Witnesses. stro re o said additiona pump 'so as to deliver the fresh oil to the circulating pump PAUL DAIMLER and thereby mix the fresh oil with the oil Witnesses:

drawn in by the circulating pump. from the ROBERT UHLAND,

oil circuit. ERNEST- L. ENTENMANN.