US1859438A - Lubrication - Google Patents

Description

y 1932- H. H. GILBERT 1,859,438

LUBRICATION Filed Sept. 28, 1927 Patented May 24, 1932 HEN RY H. GILBERT, OF DETROIT, MICHIGAN, ASSIGNOR TO GENERAL'MOTORS COR- PORATION, OF DETROIT, MICHIGAN, A. CORPORATION OF DELAWARE the bearings.

LUBRICATION' Application filed. September 28, 1927. Serial No. 222,535.

" This invention relates to automotive vehicles and particularly to the oiling system of the internal combustion. engine thereof.

'In the past some difficulty has been experi- 1 enced in-starting internal combustion engines during cold weather, and it is the object of the present invention to overcome this difficulty by providing a system of lubrication which will permit of an adequate supply 7 of hot oil to be furnished the working parts 7 of the engine during the starting period.

The object of the invention is accomplished by placing at any suitable point near the engine, but preferably in the oil pan thereof, a suitable container through which the oil is forced by the usual oil pump before reaching ed by providing a surrounding shell spaced therefrom. This space may be either an air space or may be filled with a suitable insulating material, such as asbestos.

While the engine is running the oil is forced through the container, and in due time becomes heated up and after the engine has stopped the container serves as a reservoir and traps a considerable quantity of hot oil.

' On restarting the engine this hot oil is forced directly to the hearings or to the cylinders and permits of a ready starting of the engine.

While the disclosure on the accompanying drawings shows the hot oil supplied only to the bearings, an additional lead pipe may obviously be run to each cylinder so that a suitable supply of hot oil may be furnished during the starting period. To prevent a continual supply of the lubricant passing to the cylinders, a thermostatically operated valve may be placed in the pipe and which will be closed after the engine has run a suitable period, due to the generation of heat.

The invention is disclosed on the accompanying drawings in which:

Figure 1 is an end view of a V-type internal combustion engine with parts broken away and portions shown in section to illustrate the invention.

Figure 2 is the detail side view of the container and its connections shown in Figure 1.

Figure 3 is the transverse section through the container on the line 3-3 of Figure 2.

This container is heat insulat- Figure 4 is a view similar to Figure 3 of modification. y 7

Referring to the numbered parts on the drawings, 10 indicates an internal combustion engine as a whole, 12 one of the cylinders thereof, and 14 the piston operating in the cylinder head.

The engine is equipped with the usual gear type oil pump shown at 16. This pump has an outlet 18 which delivers the oilto a conduit 20 leading to a container 22 resting on the bottom of the oil pan 24,.secured to the crankcase 26. The container 22 is so placed that the oil will flow thereto by gravity when the engine is not running. The container 22 is heat insulated from its surroundings by means of an outer shell 28. Between the container 22 and the shell 28 there is an air space '30 as shown in Figures 2 and 3. This space leadto the crankshaft bearings. If desired,

additional branches may lead tothe camshaft bearings.

If desired the outlet 34 may have an additional conduit leading to a groove 40 in the engine cylinder to permit of the conduction of the hot oil to the cylinders during starting periods. In this conduit therewill preferably be placed a thermostatically, controlled valve which will close when the temperature of the engine reaches a sufficient degree. The object of this valve is to prevent a constant flow of lubricant to the cylinders after the engme is running. V

The operation of the construction is as follows: When the engine is running the pump 15 will force all of the oil into the container 22, and on to the bearing portions of .the engine.

' As the engine continues'to run the oil will bestarting the engine. Thehot' oil trapped in the container 22 will retain its heat for a considerable period, say three or four hours, and on restarting the engine, a few revolutions of the pumpwill force the supply of hot lubricant held in the container 22 to the bearing or working parts and cause a ready flow of luliricantto'the frictio'n sur-v face. This supply of hot hubricant will',permit ofthe ready starting of the engine.

10 'Iclai rniz' 7 bustion engines having an oil pan andan oil pump, an oil container in said pan for's'tor- 111g heated oil duringinormalrrunningaofsthe engine, a shell surrounding said container ands-mead "thereiroi'n to folm a heat insulator, a conduit leading from thepuinp'to said iontainerfand a second conduiti leading from 2 engine. r V

I 2. In clolrnbii'iation with an internal "combust-ion engine having an oil-pan' andyan oil punipj'a container in said pan 1 for receiving for? delivering oil from the container ii to the 1 w i'king parts ofthe engine during-the start in period. a r 1 g, a 3. In combinationwith an 1 internal com- -'-bu'stion-e ngine having an-oil pump andan I ;the engine? to supply rheated lubricant ew-hen oil pama shell resting in theoilpan,"acontairir withinfsaidshell-and heat insulated 1: *ftiiifroin andadapted to store'heated oil 5 diiring the normal running of theengine, an inlet corfdu 'it -"t'o and (container from said pump, and an outlet conduit fr'om said eontainer 1eal-ing to the engine bearings.

#4. Ina l ubricating system'forinternalcom- 'tusnon engines having an i oil pm,; an an pam ansaidsystem;antenna containerin said pan for storing heated lubricant during normal a e-renewal "theengine, a coi-iduit N l ea'clirrgfrom 'the puriap t-o thecontainenand 4 *a second'condiiit lead'ingfrom-thecontaineri to the workingiparts of the engine to' 'supply V n, 5. In combinat'on With' a-n internal combustio'n engine having-an oil pan-and an oil pump," a container" in thep an for "receiving and st-erifig lrieated dil' from the pump during normal operation of theengineg an insulanon eomsr'isis en outer shell aroundsaid container heat insulated therefrom, and

'--mens for deliveringfoil from the container t-6th orking' partsof the engine.

hustioneiiginhaving an oil pan and an oil M pama c'on'tainer'fin the "pan *for receiving and staring heated Oil from the pump during im'rmai operation 'of -*the engine; an insula- {tlon", comprisingan outer shell around i said eonta iner spaced thererrem and confining 1. In "an "oiling system for internal comsaid" container to the working p arts *ofthe 7 livering parts of the engine.

oil from the container to the working 7. In combination with an internal combusr' 9. an :combinati-on' -with a i'inmim'ai (30m bustionengine, means forkstor'mg .=-a; quantity manifold leadingto there :parts 'whenifstartingathe'eng'ine. 6

10.: In 2a;1-lubricating system itorf internal.

combustion engines :having anoil pan, email I pumpinsaid system;alubm-eantemtainen in tolthecontainen andia seco from the 7 container tolthe'wonking i parts of starting'the'engme.

of hot oil whiletherzen'gine {IS running, jan'd I I 'neT'bearingssfor. deliveringzsaidestoredf-hotzml'itol the wearing said pan, for: retainingkheated a'lfihliqtfit, a i

sheILsuIrOundi-ngFQaid:contaimr-aand-,spaeed therefrom, a eonduit: 1ealiing "frnm%the pump fconiduitleadin :a.

pump in saidz system za lnbnicanta-container in said pan Efor' detaining (heated lubricant, umeansiifor insulatingmaidzconflainenirom eaid roilrpanpa conduit :leadiin-grfroms theaprilmp-i' the containeryaandvn "secondi conduit eluding from the cdnliaiherntm theewonking parts: of

' the-engine :to% supply heated! linbniomt vwhen =rstarting the HENRY'-H.:GILBERT.

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