US2223262A - Oil cooling system for motor vehicles - Google Patents

Description

N0v 26, 194:0-v F. J. MERKLE OIL COOLING SYSTEM FOR MOTOR VEHICLES Filed April 18, 1940 rwcwo'o 17. J. Merida Patented Nov. 26, 1940 PAT T FFICE OIL COOLING SYSTEM FOR MOTOR VEmCLES y Fredrick Josph Merkle, Peoria, Ill. Application April i8, 1940, Serial No. 330,422

2 Claims.

This invention relates to an oil cooling system for the internal combustion engine/of a motor vehicle.

It is particularly aimed to provide a novel l means whereby the oil is maintained in circulation and passed through a radiator in order to cool the same, the oil being removed from the oil pan of the engine at the zone of greatest heating and being returned to such pan.

The more specic objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawing illustrating an operative embodiment.

l5 In said drawing: f

Figure l is a view in side elevation of an internal combustion engine embodying my improvements, the same being partly broken away to disclose details;

Figure 2 is an enlarged vertical sectional view taken on the plane oi line 2-2 of Figure l;

Figure 3 is a vertical sectional view taken on the plane of line 3-3 of Figure 2;

Figure 4 is a front elevation of one section of 25 the oil radiator, and

Figure 5 is a front elevation'of the other section of the oil radiator. l

Referring specically to the drawing wherein like reference characters designate like or similar parts, Ii represents a conventional internal combustion engine such as is used on motor vehicles for propulsion. As. usual, such motor or engine has an oil pan at I I and the motor drives a shaft I2 for a fan I3 which is disposed behind the radiator I4 of its water cooling system.

In accordance with my invention, a pulley I5 is keyed to said shaft I2 and a belt I6 is trained thereover which is also trained over a pulley I1 which operates a pump I8. Said pump I8 is -mounted on the casing of the vengine III and has a pipe or conduit I9 at its l inlet end which communicates with and lis coupled to a lateral inlet pipe 20, mounted at 2I in the wall of the pan I I and extending and terminating interiorly ot such pan.

The inner end of pipe 20 is closed by a screw cap 22 which positions an intake nozzle 23 on pipe 20 in abutment with a shoulder 24 tla'reon.

w Nozzle 23 is swiveled on the pipe 20 and the latter has a port or opening 26 therethrough in registry with the bore of the pipe. Suchvpipe carries a lloat 28 at its outer end, adapted to iloat on the oil within the pan I I in order that the oil pumped 5l through the nozzle 20 will always be taken from the top, which is the zone of maximum heating of the oil.

Pump I8 causes the oil to pass through an outletpipe 21, which delivers to the top header 28 of a vertical tube or equivalent radiator 29 suit- 5 1 ably located and usually mounted in front of the radiator I4. From the lower header 30 of the radiator 29, the oil is transferred through a short pipe 3i into a horizontal tube serpentine radiator 32, traveling upwardly therein and being returned 10 to the oil pan II through a return pipe or conduit 33.

A check valve 34 is preferably provided within the pipe I9, to permit pumping of the oil from the pan II therethrough and to prevent therel5 turn of oil to such pan.

It will be realized that in accordance with the invention, the oil is taken from the zone of greatest heating thereof and passed through radiators which are cooled in the atmosphere, the oil pass- 20 I `ator exteriorly ofthe engine, a conduit member disposed primarily exteriorly oi* the engine e'xtending into said pan to receive oil from the latter, and having an opening within the pan, a $5 pivotally mounted inlet nozzle on said conduit member having a float to engage the oil in the pan, a closure for the inner end of said conduit member positioning said nozzle. a chamber means supported on said conduit member exteriorly of 40 the pan, and a valve in the chamber -member to prevent back ilow of oil.

2. The combination of claim l wherein the conduit member has an enlargement exteriorly of the engine to which the chamber means is connected. said conduit member being screw threaded into the engine, a nut on-the screw threaded portion of the conduit between the eny` largement and engine and bearing against the 50 latter, said conduit member within the engine having a shoulder abutted by the inlet nozzle on the opposite side to the closure.

mEDRIcK aosrnrmam. 5|

Images