US2110662A - Dual oiling system for internal combustion engines - Google Patents

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March 8, 193.8. `cjl. FISHER DUAL OlLING SYSTEM FOR INTERNAL COMBUSTION ENGINES 2 Sheets-Sheet l Filed May 29, 1937 TO IGNITION ,v s R Y ow E AWF.. m WE n a. A

C. E. FISHER March 8, 1938.

DUAL OILING SYSTEM vFOR INTERNAL COMBUSTION ENGINES 2 Sheets-Sheet '2 Filed May 29, 1957 Patented Mar/ `1938 PATENT oFl-Ics DUAL OILING SYSTEM FOR INTERNAL COM- BUSTION ENGINES Charles E. Fisher, Peekskill, N. Y.

Application May 29, 1937, Serial No. 145,405

s claims...y (ci. 12s- 196)v 4 iThis `invention relates to oiling systems for internal combustion engines, and particularly to f an improved dual oiling system, the object being to provide a construction wherein oil is supplied temporarily through certain oil distributing members before the rst explosion ofthe com- .bustble mixture.

Another object'of the invention is to provide a dualoiling system wherein oil is supplied to the l0 moving parts of the engine before these parts have begunto move and later supply oil to the moving parts through a second supply system.

An additional and further object ofthe invention is to provide a dual oilingsystem for `combustion engines wherein a special driven pump is utilized for supplying oil temporarily to the parts of the engine and later where a second pump supplies oil to the same parts.

In the accompanying drawings: 20, Fig. l is a View partly'in diagram and partly in section disclosing an -embodiment of the invention;

Fig. 2 is a longitudinal sectional view through the cylindersof a six cylinder engine showing how oil is supplied thereto;

Fig. 3 .is a view principally in section showing how the' oiling system supplies oil to the ycrank shaft of an engine; Y Fig. 4 is a longitudinal vertical sectional view through anautomatic switch embodying certain features of the invention; Fig. 5 is a sectional view through Fig. 4 approximately on the line 5--5;

zFig. 6 is a sectional view through Fig. 4 approximately on the line 6 6;

y Fig. .7 is an enlarged detail fragmentary sectional view sho-wing one of the check valves used in the oiling system. y i v Referring to the accompanying drawings by numerals, I indicates an internal combustion engine of any desired type provided with any desired form of sump 2., The engine I is provided with a number of pistons 3 andy a number of cylinders II. As shown in Fig. 2 there' is illustrated six cylinders but the invention could be applied to'an engine having more or less cylinders without Vdeparting from the spirit of the invention; In the ordinary automobile of today it is customary to turn on the ignition switch and then a little later step on the starter. If the engine is inproper shape it will immediately start and once it starts the ordinary oil pump now in com- Y mon use. will begin to function. However, it will be understood that for the rst few movements of the pistons there will be no oil supplied therethe pipe 6 as indicated by the arrow 1.

to and this produces an undesired wear. In the presentinvention oil is supplied to the pistons before they start to move and the supply is continued after they start tol move.

In carrying out this idea there is provided a 5 pump 5 which may be an ordinary gear pump or any other suitable kind for forcing oil through The pump 5 is arranged in the hood 8 supplied with the wire mesh 9. The hood 8 is secured to the 10 tubular casing III which is bolted o-r otherwise rigidly secured to the lower part of the engine I as shown in Fig. l. A drive shaft II is connected with the pump 5 and with an electric motor I2 whereby whenever the motor is functioning l5y pump 5 will be functioning. The motor I2 is supplied with current from the battery I3 which is the usual battery on an automobile. This battery has one side grounded at I4 in the usual way and the other side connected to one side of the 20 ignition switch I5. The other side of the ignition switch, namely contact I 5, is connected to an automatically operated switch structure I'I vby a conductor I8; Current passing through the switch structure I I will also-pass through the 25 conductor I9 to motor I2 which is grounded at 20. `It will thus be seen that whenever the switch structure I1 is closed and the'ignition switch is closed the motor I2 will be supplied with current and will cause pump 5 to function. It willfii()` bel understood that the wires 2l and 22 form part of the usual ignition circuit of the engine so that when the switch arm I5' is first closed current will be supplied from battery I3 to the ignition circuit and also to motor I2, which @motor will 35 immediately begin lto function and cause oil to pass to the cylinders. Ordinarily in starting an automobile there is a few seconds delay between the time 'that the ignition switch is closed and the time that the starter turns over the engine. 40 During this time whether it is long or short pump 5 will be functioning to force oil to the cylinders of the engine so that the pistons will be supplied with oil before they begin to move for the first time.

Asthe pump 5 functions oil will pass from pipe 6 to the various pipes BI leading to the cylinders of the automobile. In addition to the oil passing as just described, some of the oil Willpass through the check valve 2s which is shown in detail in 50 Fig. '7. -From this gure it will be seen that oil 'passing' upwardly through pipe 6I willV unseat the ball 25 and pass on through the pipe 26 while oil from pipe 26 can not move back through the 'valve 4I. `lrorn pipe 26 someof the oil passes 55 upwardly through pipe 21 to produce a desired pressure in the oil gauge 28. Also oil will pass from pipe 26 through pipe 29 to the expanding bellows 30 as shown particularly in Fig. 4. Bellows 30 is supported by a suitable housing 3I and carries a top plate 32 having arms 33 extending v into slots 34 of the housing whereby it is guided in its upward and downward movement. As the oil moves into the bellows it attempts to raise the same but there is not sufcient force to raise the plate 32 suciently high to actuate the switch arm 35. Spring 36 acts on the plate 32 and on a plate 31.

v that it can not move further but the oil will pass out through the relief valve 38 back into the sump 2.- This action will continue as long as the switch arm I5 is closed and the engine is not functioning. As soon as :the engine begins to function the usual pump 39 dof the engine beginsto function. This pump is preferably more powerful than pump 5 so that this pump will force oil upwardly through pipe 40 past the check valve 4 I, which check valve is similar to the valve shown in Fig..7. Oil passing valve 4I will pass through pipe 42 into pipe 26 and also vinto pipes 21 and 29. The oil passing from pipe 42 into pipe 26 willclose check valve- 24 while the low pressure pump 5 is still operating. However,

oil leaving pipe 26 at B will pass down through pipe 2,3 to the bearing at. C. This action continues while either pump is operating. vOil-.passing upwardly through pipe 29 willcreatesufcient pressure in the bellows 30 to rather quickly raise the plate 32 and the stern 43 carried thereby so,

that the at spring 44 will quickly throw the switch base 45 upwardly at one end and downwardly at7the other end. The switch arm 35 is rigidly secured by a screw 46 or otherwise to the base 45 and lconsequently when this base is thrown upwardly or rotated on the pin 41, arm

35 will move out of the socket 48 which forms part of the contact member 49'.

It will be understood that wire I8 is connected with contact 49 as shown in Fig. 5 and wire I9 is connected with the pin 41. It will *therefore be seen that when the bellows 30 is moved upwardly and the switch arm 35 isswung downwardly the circuit of motor I2 Awill be opened but the ignition circuit will remain closed. In order .to cause a quick action both upwardly and down'- wardly as shown in'Fig. 4 for the base 45 a spring 50 is connected with pin 5| and with a stationary post 52. This spring is preferably under tension at all times to give the action just described. The spring 44 is suiciently stii to swing the base 45 upwardly or downwardly as shown in Fi'gf4 as the plate 32 moves upwardly and downwardly.

During the normal functioning of the engine whether it is Voperating at a'hig'h speed Eor low speed, pump 39 will supply suficient pressure to bellows 39 to maintain the switch structure I1 open and consequently the motor I2 is. deprived Spring 36 continually tends tov `force the plate 32 downwardly and also acts to force the same downwardly when there isv no' of current.. If for any reason the engine should stall and the parts stop moving, the pressure in bellows 30 would be relieved and the switch structure I1 would function to move the parts to the position shown in Fig. 4, whereupon motor I2 5 would begin to function. This motor would be immediately cut out upon starting of the engine 'as above described or if the switch arm 35 was moved -to an open position. vIt will therefore be seen that oil is supplied to the moving parts 10 before and during the operation of the engine.

I claim:

1. A dual oiling system for anl internal combustion engine including a pump for forcing oil through said oiling system, an electric motor for 15 actuating said pump, means for conducting current to said electric motor. upon the closing of the ignition circuit of the engine, and means including a pump actuated by said engine for continuing the movement of the oil through the same oiling system after the engine starts and substantially at the same time opening the circuit o`f said electric motor.

2. An oiling system for an internal combustion engine comprising suitable supply pipes extend; 25 ing to the surfaces to be oiled, an electric motor actuated pump for supplying oil to said pipes, a second pump actuated-from the moving parts of the engine for supplying `oil to said pipes, an electric circuit for said. electric motor, said elec- 30 tric circuit including the ignition switch of the engine and a pressure controlled automatic switch, and means actuated by pressure from the second mentioned pump for opening said automatic switch.

valves for preventing oil passing from either pump to the other.

v44. In an oilin'g'system for'internal combustion 50 engines, a'pair of pumps for supplying oil to said system, one of said pumps being driven from the moving parts of the engine, an electric motor for driving the other pump, check valvesvfor preventing oil from either pump passing back to thev v other, a circuit for said electric motor including the ignition switch of the engine whereby current is supplied to said motor when the ignition switch of the engine is closed, a pressure throw-out switch arranged vin said circuit, said 'throw-out 60 switch including a stationary contact, a swingable switch arm, a. reciprocating member, means cocting with the `reciprocating member for swinging said switch arm into and out of engagement with said stationary contact, a spring for moving said means in one direction, and a bellows operated by pressure from the regular pump of. the engine for moving the switch arm to anl open position.

5. In an oiling systemfor an internal combustion engine including an electrically actuated pump, a standard pump operated by the mechanism of the engine, a circuit for the electrically actuated pump, said circuit including the igni- 1011 Switch ofthe engine .and a pressure actuated 75 throw-out switch, said throw-outswitch including a stationary contact, aswitcharm adapted to ,be moved into and out of engagement with the 'stationary contact, a reciprocating structure for swinging said arm, va spring for moving said reciprocating lstructure n one direction, a. bellows for moving said reciprocating structure in the opposite direction, and an oil pipe extending from the second mentioned pump to the bellows whereby when the second mentioned pump is functioning said bellows will be distended for moving said switch arm to an open position.

l 6. An oiling system for internal combustion engines including 'an electric motor, an oil pump actuated by the electric motor, a second pump connected with the moving parts of. the engine so as to be actuated tl'iereby, a, circuit for said motor including the ignition switch of the enginev and .a pressure throw-out switch, and means actuated by oil from said second pump for opening said throw-out switch after the engine starts to function. V

' CHARLES E. FISHER.

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