US1251941A - Apparatus for lubricating. - Google Patents

Description

J. G. UTZ.

APPARATUS FOR LUBRICATING.

APPLICATION 111:0 JULY 30.1913.

1,25 1,941. Patented Jan. 1, 1918.

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APPARATUS FOR LUBRICATING.

APPLICATION FILED JULY 30.1913.

1,251,941. Patented Jan. 1, 1918.

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JOHN G. UTZ, OF CLEVELAND, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE STANDARD PARTS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

APPARATUS FOR LUBRICATING.

Application filed July 30, 1913.

T 0 all whom it may concern Be it known that 1, JOHN G. UTZ, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Apparatus for Lubricating, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to lubricating apparatus and systems of the type shown in the United States patent to H. F. Maranville #1,()9(3,550, dated May 12, 1911. The object of the invention is to provide a system or apparatus of this type wherein the engine base or crank case will contain a very small quantity of oil at any time during the operation of the lubricating apparatus while insuring eliicient lubrication under all conditions and in practically all positions of the engine base or crank case, the lubricating of the engine parts being shown herein as accomplished by the use of the splash system. A further object of the invention is the avoidance of overheating the oil, whereby its lubricating qualities are preserved and great etliciency and economy in operation are made possible. Still further objects of the invention are to provide means and a method whereby the amount of lubrication is automatically varied in direct proportion to the speed of the engine; also to improve the construction of crank cases in details whereby increased efficiency in lubrication is assured. \Vith the foregoing objects in view the invention may be generally and further defined as consisting of the combinations of elements embodied in the claims hereto annexed and illustrated in the drawings forming part hereof, wherein Figure 1 represent a side elevation of an engine having my invention applied thereto, together with the cooperating parts of a motor vehicle; Fig. 2 represents a plan View of a crank case or engine base with my invention applied thereto; Fig. 3 a central longitudinal sectional view through said crank case or engine base; Fig. 4 a transverse sectional view through the central portion of the crank case; Fig. 5 a similar view taken through one of the combined troughs and sediment traps and showing the relation of the crank and its scoop or dipper to the said trough; while Figs. 6, 7 and 8 are sectional views through one of the troughs and Specification of Letters Patent.

Patented Jan. 1, 1918.

Serial No. 782,006.

showing the manner in which the lubrication is automatically varied in accordance with the engine speed.

Describing by reference characters the various parts illustrated herein, 1 denotes the cylinders, 2 the upper section, and 3 the lower section or base of the crank case of a multi-cylinder engine, the embodiment shown herein comprising six cylinders. The engine is shown as applied to an automobile, the hood of which is indicated at 4, the seat at 5, and the radiator at 6, said parts being indicated by dotted lines in Fig. 1. The engine cylinders, the upper crank case section, and the parts 4, 5, and 6 may be of any convenient or conventional construction. In the preferred form of my invention, the lower section will be constructed substantially as shown herein, such lower section being bolted to the upper section by means of flanges 7 and bolts 8. This lower section is conveniently made as a casting, although pressed metal may be used for the purpose, if desired.

Extending across the longitudinal central portion of the lower crank case section are a plurality of narrow trough-like receptacles, one for each crank 9 and connecting rod 10 of the engine. These trough-like receptacles are indicated generally at 11 and are arranged with their major diameters at right angles to the length of the base. The upper edges of the troughs are all in the same horizontal plane (when the car is level) above the bottom 3 of the crank case. The bottoms of the receptacles project through and below the inclined bottom 3 and are each provided with a removable clean-out plug 12 threaded thereinto and closing a hole through which sediment may be removed. The end walls 13 are provided with V-shaped notches 14 therein, the bottoms of these notches being in substantially the same horizontal plane (when the car is level) while one of the side walls 15 of each trough is provided with an aperture for the reception of an oil supply, the bottom of said aperture being located at least as high, and preferably above, the bottom of the V-shaped notches 1 1, for a purpose to be explained hereinafter.

The bottom 3 of the crank case slopes downward] from the troughs 11 near each end thereof to the central portion, where a. collecting tank or well 16 is provided for supply to the troughs is interrupted, the troughs will retain a sufficient quantity of oil for emergency purposes until the circulation can be reestablished or brought to normal,

As is Well known to those familiar with the splash system of lubrication, the passage of the scoops or dippers through a body of oil produces troughs in said body and, when the engine is being driven at high speed, there is insufficient time for the oil at the sides of the troughs to flow to and close these troughs before the scoops or dippers again enter the body of oil. By dischargirg the entering oil at right angles to the paths of the scoops or dippers and by bringing the delivery ends of the oil supply branches near the said paths, the flow of oil into the receptacles 11 will not only tend to close the troughs formed by the scoops or dippers, but there will be present, at the lowest point of travel of the scoops or dippers, a transversely moving stream of oil the height whereof (and the consequent depth of the immersion of the scoops or dippers) varies with the speed of the engine.

The lubricating apparatus herein set forth is efiicient. nct only in the particulars noted, but in maintaining the supply of oil to the engine parts of the crank case which is at all times comparatively cool and which is free from impurities. The amount of oil within the crank case at any time is very small and this oil moves rapidly to the receptacle 16 whence it may be forced through a suitable filter and cooling device (such as shown in said application No. 615,803) back into the crank case troughs. Owing to the provision of the settling chambers 30, no heavy sediment such as might interfere with the operation of the pump will enter the central portion of the reservoir 16 and thence enter the pump section pipe. Meanwhile, the float-controlled supply to the receptacle 16 serves to replace automatically the oil actually consumed in the engine lubrication.

Should the crank case be tilted at an angle, the operation will not be materially affected, since such tilting will not vary the relation between the oil streams and the cooperating parts. Furthermore, projecting the bodies of the troughs 11 and the body of the receptacle 16 below the bottom of the crank case or engine base not only facilitates the removal of the sediment but assists in maintaining the coolness (and hence preserving the lubricating qualitics) of the oil.

Having thus described my invention, what I claim is 1. The combination, with a plurality of cranks and connecting rods of a multi-cylinder engine, of a crank case having above its bottom a plurality of transversely extending troughs or receptacles, one for each crank, an oil receptacle at and within the central portion of the crank case, said case having walls sloping downwardly to said receptacle, means for forcing oil from said receptacle into said troughs, a supply connection communicating with said receptacle, and means for maintaining in said receptacle a level of oil below the level in said troughs.

2. The combination, with a plurality of cranks and connecting rods of a multi-cylinder engine, of a crank case having a receptacle at and within the central portion of its bottom and longitudinally extending downwardly-iuclined walls leading to said receptacle, a plurality of troughs extending above the inclined portions of the bottom, on each side of the central receptacle, there being a trough for each crank, an oil supply connection coinmunicatirg with said receptacle. means for maintaining within the said receptacle a level of oil which is below the level of oil in the troughs, a pump, a connection between said pump and said receptacle. and supply connections leading from the pump to the said troughs.

3. The combination, with a crank case having receptacle at the central portion thereof and having its bottcm inclined downwardly from each end toward said receptacle and dischargii'ig thereinto, partitions in said receptacle forming settling chambers adjacent to the inclined portions of the bottom. an oil supply connection communicating with the central portion of the receptacle between said partitions, means for maintaining a level of oil in the central portion of the receptacle below the tops of the said partitions, a pump communicating with the central portion of the receptacle, and a supply connection extending from said pump into the crank case.

4. The ccmbination, with a crank case having a receptacle at the central portion thereof and having its bottom inclined downwardly from each end toward said receptacle and discharging thcreinto, troughs located on each side of said receptacle and above the inclined bottom, partitions in said receptacle forming settling chambers adja cent to the inclined portions of the bottom and having their tops below the tops of the troughs. an oil supply connection communicating with the central portion of the receptacle between said partitions, means for maintaining a level of oil in the central portion of the receptacle below the tops of the said partitions, a pump communicating with the central portion of the receptacle, and a supply connection extending from said pump to the troughs.

5. The combination, with a crank case having an inclined bottom and a receptacle into which the inclined bottom drains, of a settling chamber interposed between the lower end of the inclined bottom and the receptacle, a pump communicating with the said receptacle, and connections extending from said pump to the crank case.

6. The combination, with a plurality of cranks of a multicylinder engine, of a crank case having in its bottom a plurality of troughs extending transversely thereof, said troughs having their upper ends projecting above the bottom and their lower ends projecting below the same and each having an overflow outlet above such bottom, each of said troughs being adapted to contain a body of oil into which each of the cranks may dip as it passes its lower center, and means for supplying oil to each of said troughs.

7. The combination, with a plurality of cranks of a n'iulti-cylinder engine, of a crank case having in its bottom a plurality of troughs extending transversely thereof, said troughs having their upper ends projecting above the bottom and their lower ends projecting below the same and each having an overflow outlet above such bottom and a removable closure below such bottom, each of said troughs being adapted to contain a body of oil into which each of the cranks may dip as it passes its lower center, and means for supplying oil to each of said troughs.

8. The combination, with a plurality of cranks of a multi-cylinder engine, of a crank case having in its bottom a plurality of troughs extending transversely thereof, said troughs having their upper ends projecting above, and their lower ends projecting below, said bottom and each having an overflow outlet above the crank case bottom, each of said troughs being adapted to contain a iody of oil into which each of the cranks may dip as it passes its lower center, and means for supplying oil to each of said troughs at a point above its discharge outlet and at right angles to the path of travel of the crank.

9. The combination, with a plurality of cranks and connecting rods of a multi-cylinder engine, of a crank case having above its bottom a plurality of transversely extending trough-s, one for each crank, an oil receptacle within the crank case, means for supplying oil from said receptacle to said troughs, means wherebv oil Within the crank case outside of said troughs may be conducted into such receptacle, a supply connection communicating with said receptacle, means within said crank case for removing sediment from the oil which is conducted from the interior of said case to said receptacle, and means for maintaining in said reccptacle a level of oil below the level of oil in said troughs.

10. The combination, with a crank case having a receptacle therein comprising a settling chamber and a supply and distributing chamber, of an oil supply connection communicating with the last mentioned chamber, means for conducting oil from the last mentioned chamber to the crank case, and means whereby oil accumulating within the crank case may be delivered to the settling chamber.

11. The combination, with a crank case, of a settling chamber and an oil supply chamber communicating with the settling chamber, means for conducting oil to the supply chamber of the crank case, and means whereby oil accumulating within the crank case may be conducted to the settling chamber.

12. The combination, with a crank case having a receptacle therewithin, a partition within said receptacle forming a settling chamber and an oil supply chamber communicating with each other above the top of said partition, means for conducting oil from the supply chamber to parts within or above the crank case, and means whereby oil tending to accumulate within the crank case may be conducted to the settling chamher.

In testimony whereof, I hereunto aflix my signature in the presence of two witnesses.

JOHN G. UTZ. WVitnesses:

JOHN B. HULL, BRENNAN B. WEsT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of letentl,

Washington, D. G.

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