US1890984A

US1890984A - Engine lubricating device

Info

Publication number: US1890984A
Application number: US412250A
Authority: US
Inventors: Edward J Gulick
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-12-06
Filing date: 1929-12-06
Publication date: 1932-12-13
Anticipated expiration: 1949-12-13

Description

Dec. 13, 1932. E. J. GULICK 1,890,984

ENGINE LUBRICATING DEVICE Filed Dec. 6, 1929 2 Sheets-Sheet l E mum Inn-1m a q I\ \l Ea]. &5 r i V "1% ll 1. I

Dec. 13, 1932.

E. J. GULICK ENGINE LUBRICATING DEVICE Patented Dec. 13, 1932 UNITED STATES EDWARD J. GULICK, OF ELKHART, INDIANA ENGINE Lunmcnrme DnvIcn Application filed December 6, 1929. Serial No. 412,250.

My invention relates to internal combustion engines, and particularly to the means for engine lubrication.

The present prevailing practice in inter- 5 nal combustion engine lubrication, especially motor car engines, consists in pumping oil from a pool carried in the engine base and circulating it through the lubrication circulatory system to the various engine bearings. In such a s stem dirt, water, carbon, gasoline, and 0t er deleterious substances accumulate in the engine base, mix with the lubricant, and are continuously circulated with the lubricant to the engine bearings, thereby impairing the quality of the lubricant.

And in such a system considerable water accumulates in the engine base in winter by condensation, and otherwise, and when a motor car stands idle, the water forms a pool in the bottom of the engine oil-pan and freezes in severe winter weather, whereby the oil suction pipe, which extends to the oil-pan bottom, is closed and the lubrication system is rendered useless.

to improve and simplify the mechanism shown and described in my Letters Patent of the United States, No. 1,369,239, of Feb. 22,1921.

Another object of the invention is to effect a direct communication between the oil pump and the oil suction pipe. I

A third object of the invention is to effect 5 a rigid connection between the oil suction The principal object of this invention isings, wherein Figure 1 is a section in elevation through an engine base to which my invention is applied;

Fig. 2 is an enlarged view. in elevation, partially broken away, showing the suction pipe, the float, and the flanged connection to the pump;

Fig. 3 is a section taken on line 3-3 of Fig. 2;

Fig. 4 is a bottom plan view of the float and screen, broken away;

Fig. 5 is a section taken on line 55 of Fig. 2;

Fig. 6 is a view similar to Fig. 2 illustrating a modification of the device in combination with baflle means and. stop means for limiting the movement of the float and suction pipe;

Fig. 7 is a plan view of the baflle plate and a portion of the pump elbow;

Fig. Sillustrates a plan view of a modified form of the baflle plate; i

Fig. 9 illustrates still another modification of the bafile plate; and

Fig. 10 shows a side elevational View of the baffle plate illustrated in Fig. 8.

Similar numerals of reference indicate like parts throughout the several views on the drawings.

Referring to the details of the drawings the numeral 1 represents the crank-case of a multi cylinder internal combustion engine within which is mounted the usual crank-shaft 2 having the

usual bearings

3, 3 and an oil-pan 4 suitably connected with said crank-case. The numeral 5 indicates an oil circulation pump suitably mounted in the engine base and which may be operated by the upright tion is illustrated in the accompanying draw- I shaft 6, the latter being driven by the gears 7 and 8 carried, respectively, by said shaft and the engine cam shaft 9.

The oil-pan 4 contains the usual pool of lubricant 10 adapted to be circulated to the

shaft bearings

3, 3 through the pump deliv ery pipes 12, 12. The oil pump 5 may be of any suitable type, but as illustrated, it is a gear pump of a well known design, being provided with the suction inlet port 13 which is in communication with the bore 14 of the depending suction elbow 15 which may be fastened to said pump by screws 16. The outer end of the elbow 14 has its axis disposed in a horizontal. plane and may be counter-bored at 17 to receive the cylindrical tubular end 18 of the suction pipe elbow 19 with which the suction pipe 20 is rigidly connected, there the elbow 15 by screws 23, an arcuate portion.

of which plate overlies a part of said flange 21.

The outer end of the suction pipe 20 car-- ries the float element 24 rigidly connected therewith, the latter being adapted to float upon the surface of the oil pool 10 to buoyantly sustain the pipe 20 therein to cause the latter to swing in a vertical plane as the level of said oil pool may vary. Float element 24 may be annular in formation and is preferably made of thin sheet metal, and may comprise the bottom and

side wall section

25 and 26, respectively, struck from a single sheet of ductile metal, and the annular cover 27 secured to the upper edge of said side-wall section by solder, or otherwise in any suitable manner. The suction ipe 20 extends through a suitable aperture 1n the float sidewall 26 to the center of the float body and has its downwardly turned inlet elbow 28 rigidly secured, by solder or otherwise, in the aperture 29 formed centrally in the float bottom wall 25, whereby the orifice of the elbow 28 is held in permanent communication with the pool of lubricant adjacent its surface regardless of the varying level of the oil pool. The numeral 301 indicates a wire gauze screen applied to and covering the bottom of the float to exclude impurities and deleterious matter from the oil circulatory system, said screen being spaced from the float bottom 25 by a series of depending radially formed ribs 31 stamped in said bottom to provide oil conduit channels between said ribs, whereby the oil may move freely to the inlet orifice of the pipe elbow 28. The screen may be secured to said float bottom in any suitable manner, but the preferred method is illustrated in Fig. 2 of the drawings and comprises the annular inwardly extending oove 32 stamped in the bottom edge of the oat side-wall section 26, and extending circumferentially thereof, within which groove the upwardly and inwardly hooked outer periphery 33 of the screen is clamped by compressing the walls of said groove upon said screen.

The retaining plate 22 may be provided with the

integral furcations

34 and 35, which are curved outwardly and arranged in spaced relation, respectively, above and below the elbow 19 and adapted to serve as stop elements to limit the upward and downward movement of the pipe 20.

In the modification illustrated in Fig. 6 the construction of the float 24 contemplates an upwardly dished lower wall section 36 suitably apertured at 29 to receive the elbow 28 of the pipe 20. To accommodate such a structure t e pipe 20 may be upwardly curved or bent at 37 within the float. And in Fig. 6 the numeral 38 represents a stationary annular oil control or bafiie element, or plate, which, as illustrated, is integral with the lower prong of the retaining plate ,22, and which may have a depending leg 39 at its forward end to hold or support said baflle.

plate in spaced relation with the bottom of pan 4, whereby the oil is caused to flow over the outer periphery of said baflie, from all points thereof, to the float center, in a substantially horizontal plane, before it enters the inlet orifice of the pipe 20. I In this manner any deleterious substance on the oil pan bottom is not readily taken into the suction pipe or picked up by the screen 30.

To control the movements of the float 24 upper and lower stop means are provided, and in Fig. 6 the upright post 39, secured to the plate 38 at 40, has laterally bent upper and

lower stop elements

41 and 42, respectively, preferably integral therewith, the latter serving also to space the float screen30 from the upper face of the bafile 38 when the float is at its lowest position. Under some circumstances it may be advisable to hunt the upward travel of the float to a plane below the stop 41, and even confine it rigidly in contact with the lower stop 42. There is therefore provided a headed upright adjusting stop screw 43 threaded into the enlarged end 44 of the prong 34 of plate 22 (Fig. 6) and adapted to contact with the elbow 19 and which may be manually adjusted to confine the float in contact with stop 42.

Obviously, the stop screw 43 may be so adjusted as to permit limited upward movement from the stop 42, if so desired.

In Figures 8 and 10 a modified form of the baflle plate 38 is shown, wherein the body thereof is segregated from plate 22 and is provided with a plurality of legs 45 which are suitably apertured at 46 to receive fas tener screws 47 for securing the baffle in spaced relation with the oil pan bottom, and wherein a stop element 42' is provided integrally therewith and bent inwardly from one edge thereof.

In Fig. 9 another modification of the baffle 38 is illustrated, and therein the annular baflie body is provided with a plurality of upwardly bent integral fastener lugs 48 which may be riveted to the side wall of the float 24 to secure said bafile below. the float screen and in spaced relation thereto.

In operation, it will be obvious that the pipe is buoyantly sustained in the oil pool 10 and that the inlet orifice of the elbow 28 of said pipe will always be held in communication with the oil pool at a point adjacent the surface thereof and remote from the oil pan bottom where water and deleterious matter collect. It will also be evident that the pivotal mount of the suction pipe 20 enables the float 24 to readily adjust itself to the varying level of the oil pool when the latter is agitated or reduced inquantity for any reason, and also that any ice formation, due to water accumulation, will be on the oil pan bottom and remote from the inlet orifice of the suction pipe elbow 28.

I claim:

1. In a device of the character described, and in combination, an oil pump, a pivotally mounted oil suction pipe adaptedto swing in a vertical plane, an oil conduit connecting said suction pipe with the pump, a hollow float element rigidly mounted upon said suction pipe, said float being made of sheet metal and provided with an annular peripheral groove formed in its side-wall, the bottom wall of said float being provided with radially arranged depending ribs to form channels therein, and a screen arranged over said bottom wall ribs and having its outer edge mgidly secured in said side -wall groove.

2. In combination, an internal combustion engine provided with an oil pan or container,

an oil pump, a floatable oil suction element operatively connected with said pump and provided with an oil inlet orifice, and a bafile plate carried by said oil suction element on the under side thereof and spaced therefrom.

3. In combination, an internal combustion engine provided with an oil pan or container, an oil pump, a floatable oil suction element operatively connected with said pump and provided with an oil inlet orifice, a screen mounted on the under side of said suction element, and a baffle plate carried by said oil suction element on the under side thereofand spaced therefrom.

4. The combination with an internal com-- bustion engine provided with an oil pan or container and an oil pump, of a fioatable oil suction element operatively connected with said pump and provided with an oil inlet orifice, and a baflle plate carried by said oil suction element on the under side thereof and spaced therefrom.

5. The combination with an internal combustion engine provided with an oil pan and an oil pump mounted relatively to said oil pan, of a pivotally mounted oil suction pipe operatively connected with said pump and adapted to swing in a vertical plane, a float connected with said suction pipe, a baflle plate, and means for securing said baflie plate on the under side of said float and spaced therefrom.

6. The combination with an internal combustion engine provided with an oil pan and "adapted to swing in a vertical plane, a float connected with said suctionpipe and, provided with a screen on its under side, a baflle plate of substantially the same size as said float screen, and means for securing said baflle plate below said float screen and in spaced relation thereto.

7. The combination with an internal combustion engine provided with an oil pan and an oil pump mounted relatively to said oil pan, of an elbow adapted to be dependingly connected with said pump, an oil suction pipe pivotally connected with said elbow and adapted to swing in a vertical plane, a float connected with said suction pipe, and a baflle plate carried by said flo'at on the under side thereof and s aced therefrom:

8. The com ination with aninternalcombust on engine provided with an oil pan and an oil pump mounted relatively to said oil pan, an oil suction pipe provided with an elbow which is pivotally-connected with said I plane, a float connected with said suction pipe, and a bafile plate carried by said float on theunder side thereof and spaced there from.

9. The combination with an internal combustion engine provided with an oil pan and an oil pump mounted relatively to said oil pan, of an elbow adapted to be dependingly connected with said pump and providing a horizontal inlet, an oil suction pipe provided with an elbow which is pivotally mounted in said elbow inlet, said suction pipe being adapted to swing in-a vertical plane, afloat connected with said suction pipe, and a bafile plate carried by said float on the under side thereof and spaced therefrom.

10. The combination with an internal combustion engine provided with an oil pan and an oil pump mounted relatively to said oil pan, of a movably mounted oil suction element operatively connected with said pump, a float connected with said suction element, and provided with a screen on its under side, and a baffle plate mounted upon said float upon the under side thereof and spaced there from. I Y

11. The combination with an internal combustion engine provided with an oil pan and an oil pump mounted relatively to said oil pan, of a movably mounted oil suction element operatively connected with said pump, a float connected with said suction element and provided with a screen on its under side, a bafile plate carried by said float upon'the under side thereof and spaced therefrom, and

12. In combination, an internal combustion engine provided with a base and an oilpan, an oil pump, a pivotally mounted oil suction pipe operatively pump and adapted .to swing in a vertical plane, a float connected with said suction pipe, a stationary baflle element arranged below said float and above the oil-pan bottom, and stop means to space said float from said gaffie in the downward movement of said oat.

13. In combination, an internal combustion engine provided with an oil-pan, an oil pump mounted relatively to said oilpan, a pivotally mounted oil suction pipe operatively connected with said pump and adapted to swin in a vertical plane, a float connected with said suction pipe, and a baffle plate carried by said float on the under side thereof and spaced therefrom.

14. In combination, an internal combustion engine provided with an oil-pan, an oil pump mounted relatively to said oil-pan, a pivotally mounted oil suction pipe operative ly connected with said pump and adapted to swing in a vertical plane, a float connected with said suction pipe, a baflle plate carried by said float on the under side thereof and spaced therefrom, and stop means to space said baflle plate from the oil-pan bottom.

15. In combination, an internal combustion engine provided with an oil-pan, an oil pump mounted relatively to said oil-pan, a pivotally mounted oil suction pipe operatively connected with said pump and adapted to swing in a vertical plane, a float connected with said suction pipe, a bafiie plate carried by said float on the under side thereof and spaced therefrom, and stop means carried by said baffle plate to space the latter from the oil-pan bottom.

16. In combination, an internal combustion engine provided with an oil-pan, an oil pump mounted relatively to said oil-pan, a pivotally mounted oil suction pipe operatively connected with said pump and adapted to swing in a vertical plane, a float connected with said suction 1pc, and a stationary baflle plate arranged elow said float and provided with means for spacing the float from said bafiie plate, the latter being fastened to the oil-p an bottom and in spaced relation thereto;

17. In combination, an internal combustion engine provided with an oil-pan, an oil pump mounted relatively to said oil-pan, an elbow connected with said pump, an oil suction pipe provided with an elbow which is pivotally mounted in said pump elbow to enable said suction pipe to swing in a vertical plane, a retaining element to hold said pump connected with said tion engine provided with an oil pan, an oil a pump mounted relatively to said oil-pan, an elbow connected with said pump,-an oil suction pipe provided with an elbow which is pivotally mounted in said pump elbow to enable said suction pipe to swing in a vertical plane, a retaining plate secured to said pump elbow to hold the latter and said suction ipe elbow in operative relation, a float mem er connected with said suction pipe, and upper and lower stop elements integral with said elbow retaining plate to limit the upward and downward swing of said suction pipe.

EDWARD J. GULICK.