US1253940A - Lubrication system for internal-combustion engines. - Google Patents

Description

L. COATALEN.

LUBRICATION SYSTEM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED IUNE I2, I9l6. RENEWED JULY 6.19"-

Patehted Jan. 15, 1918.

2 SHEETS-SHEET lii 2 .1 5i i ii I I I l 14 lnwritoi-. Louie Coatalen L- COATALEN. I LUBRICHION swan ron INTERNAL comwsnou ew.

vAPPLICATION FILED lull 12 19'. lENE'WED JULY 5| 1.11. 1,253,940. I Patented Jan. 15,1918.

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LUBBICATION SYSTEM FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Jan. 15, 1918.

Application med June 12. 1816, Serial No. 103,321. Renewed July 6. 1911. Serial No. 179.0%.

1 '0 oil whom it may concern;

lie it known that I, Louis Coaraum, a subject of the King of (ircal; Britain, residing at \l'olrerhanipton, in the county of h'lall'ord. England, have invented certain new and useful Improvements in Lubrica' tion Systems'for Internal-(jombustion Engines, of which the following is a specification.

This inventio relates to lubrication systcnis for internal combustion engines of the kind in which a pump or pumps is or are employed for circulating the oil.

in the accompanying drawings,

Figure 1 is an end View partially in section. showing om: method of carrying out this invention.

Fig. 2 is a cross section on the line 22 of Fig. l. but showing also the oil filter which (lOt'H not appear in Fig. 1.,

Fig. 3 is a horizontal scctioi'ron the line 3 of Fig. 2.

Like letters indicate like parts throughout the'd'rawings.

In most engines the crank chamber is divided horizontally and the lower part is easily removablejor access to the bearings, etc. It is dcsira lie that the oil pump should be carried by tlmore-rigid upper part. but the oil collectsin the lower part and there must be a con action between the oil chamber in the loii'crwuid the oil pump on the upper part.

It is the object of the present intention to provide an improved connection, which is particularly applicable where a double oi pump is u sed one half drawing the il from thesuppiw and forcing it to the hearings.

and the other delivering the used oil'back tothe supply tank. The upper art A of the crank chamber carries the cylinders and main engine shafts,

from one of which, A is driven a vertical spindle A which drives a pair of gear wheel pumps contained the superposed casings B and C. 'Ilhese casings are bolted together,

and the upper one is attached by bolts, one a .of which shown at B, to the upper part A of tllu t'ltllllt chamber. The oil in the crank ch: nbcr collects in tlielowercrank chamber ""ba'rt D which is formed withn well E. "I he used oil collecting in this well enters the lower pump casing C, (see Figs.

the pipe t' to the oil tank or cooler which is arranged outsidtthe engine.

The pump contained in the upper casing it sucks oil from the tank along the passa re F from an inlet rln'unberl supplied by t e branch F, and delivers this by the passage l to the variou parts of the engine which require lubriratiou. v

lt-will be seen that oil trarelingdoivn the passage (1 enters an oil chamber C provided with a drain plug C". The oil chamber i may be constructed as a filter chumher. as shown, and if desired the chambers l and (It may be formed integral with one another, and they are attached to the lower part i) of the crank chamber. When this lower part is detached it is clear that the connection between the passage C and the chamber and the passage F with the chamber F, must be broken.

tion is adopted :-Eaeh of the pipes C and l carries a washer H which is pressed upward by a. spring J which abuts a ainst a. collar K fixed tothe pipe C or Between the washer H and the upper wall of the oil chamber is arranged a ring of packing material. 'lhisspr'ing-pressed washer, in .-onjunction with the packing material provides an oil-tightconnection, but there is a clearance between the side of each pipe and lhe side of the hole in the oil chamber through which it passes so that the pipes have a certain amount of lateral freedom and consequently relative vibration between th two crank chamber parts does not throw any strain on this "connection. This clearance is too small to be apparent in the drawings. t

, It will be clear that removal ofthe crank chan'iher part D is possible without disturbing the oil pumps Further, that there is combination of .an upper crank chamber part. a lower part detachable therefrom, an on punlpcarried by saidupper part, an oil chamber carried by said lower part, and afloating oil-ti ht connection between said set forth. t

2- In an internal combustion engmu, the

ump and sai oil chamber, substantially as combination of an upper crank chamber part, a lower part detachable therefrom, an oil pump carried by said. upper part, an oil chamber carried by said lower part, an oil pipe carried by said pump, a clearance hole in said oil chzunber through which said oil pipe passes, a spriu pressed washer on said oil p1 e, substantia y as set forth.

3. 11 an internal. combustion engine, the combination of an upper crank chamber part, a lower part detachable therefrom, a pair of superposed oil pumps carried by sgid upper part, a pair of oil chambers car- 'ried by said lower part, floating oil-tight connections between each of said pumps and 1:: one of said oil chambers, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS COATALEN.

Witnesses:

Iius VAN NAALTE, FREDERICK T. LANGLEY.

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