US1446505A - Oiling system - Google Patents

Description

Feb. 27, 1923 L. B. HUBBARD.

0mm; SYSTEM.

FILED APR. 4, I922.

1% J67 of 2/ W COW Queuing 2 SHEETS-SHEET 2.

4 v iiatented Feb. 27, i923.

LLOYD B. HUBBARD, OF "HICHITA FALLS, TEXAS.

OIL-BING- SYSTEM.

Application filed April 4, 1922. Serial No. 549,467.

To full zvhom/itmay concern: plate 6 is located in said chamber adjacent Be it known that l LnoYn l3. Hummer), a said pipe opening. citizen of the United States. residing at The pipe 5 is designed to extend into the iVichita Falls, in the county of iita and crank casing (not shown) and is equipped 6 State of Texas, have invented a new and with a two way valve 7 adapted to be actuuseful Oiling System, oi? which the follow ated by any suitable means for bringing into ing is a, specification. communication with pipe 5 pipe 8 which ex- This invention relates to automatic oiling tends into the crank chamber or pipe 9, the systems for automobile and other combus latter being longer than pipe 8 and designed 6 10 tion engines. as an emergency supply p'pe for purposes The object of the invention is to provide presently to be described. A pipe 10 leads a vacuum operated oiling system of this "from the bottom of tank 1 and is designed to character in which pumps and gears are return the oil to the crank case to insure the eliminated and a perfect circulation of the proper circulation of the oil. 70 oil insured. A pipe 11 leads from the upper end of the Another object of the invention is to so vacuum chamber 2 to the intake manifold construct an oiling apparatus of this chain of the engine (not shown) and has a reacter that the motor will be stopped before duced mouth 24: opening into said chamber.

the supply of oil is exhausted, thus prevent- A cap 12 has threaded engagement with a" 75 2o ing the burning out of the bearings. boss or neck 14c carried by the top of chant Another object is to provide such an appaher 2 and through which extends a valve ratus ope able to keep the oil and the mot-air stem 15 having mounted on its upper end a cool, to filter out any gasoline which may ball valve 16 which may be termed the atleak around the piston rings into the crank mospheric valve. The cap 12 is provided 80 case and return it to the engine for use as with a plurality of openings 13 which permit fuel. atmospheric air to be admitted to said cap Another object is to provide such an ap and when the ball valve 16 is raised, the air paratus equipped with an emergency oil passes down into the vacuum chamber 2 for supply and with means to' stop the motor cutting oif the oil supply through pipe 5 in 5 when the reserve supply is exhausted. a manner to be presently described. A float With the foregoing and other objects in 17 is mounted in the chamber 2 on the valve view which will appear as the description stem and is operable for controlling the supproceeds, the invention resides in the com; ply of oil admitted through pipe 5. A T- bination and arrangement of parts and in shaped valve 18 is also carried by the stem 90 the details of construction hereinafter do 15 and the shank or stem 19 thereof is scribed and claimed, it being understood loosely engaged with a guide rod 23 dependthat changes in the precise embodiment of ing into the chamber 2 from the top thereof. the invention herein disclosed may be made The head 20 of the valve 18 is designed to within the scope of what is claimed without close the elongated opening 2% which com 9. departing from the spirit of the invention. municates with the vacuum pipe 1.1 when In the accompanying drawing the oil in the chamber 2 reaches a predeter- Figure 1 represents a central vertical mined height. section of the apparatus constituting this The valve 18 is shown mounted on the invention. stem 15 between two spaced disks 21 and 100 Fig. 2 is a horizontal section taken on the 22 as is shown clearly in Fig. 1. The stem line 2-2 looking in the direction of the ar- 15 below the float 17 is equipped with a stop rows to, and 25 which in its lowest position is yet above Fig. 3 1s a similar view taken on'the same spider 26, through which thestem 15 extends line looking in the direction of the arrows 7). and which serves as a guide for stem 15, 105

This oiling system includes an apparatus In the use of. this apparatus the suction in the form of a closed tank 1 having a pipe 5 leads from the vacuum chamber 2 and vacuum chamber 2 encased thereby and extends into the crank case (not shown), the which communicates therewith by means of lower end 8 of said pipe being immersed in an outlet 3 controlled by a check valve t. An the oil a depth depending upon the depth of 110 oil supply pipe 5 opens into the vacuum oil carried by the crank case.

chamber 2 at the top thereof and a bathe hen the motor is started the suction in .b-ility of the bearings being burned out.v

the manifold exhausts the air in chamber 2 creating a suction in pipe 5 which operates. to draw the oil up through this pipe into the vacuum chamber 2. The oil discharged through pipe 5 strikes the baffie (3 which guides or directs the entering oil to the 001.17 tom of the chamber.

As the oil rises in tank 2 the float 17 rises with it and when the chamber is full this float will engage the disk 21 and force the valve stem 15 upward opening the valve 16 permitting the air to enter chamber 2 and release the vacuum therein. At the same time that the valve 16 is opened the valve 18 closes the opening 24 leading to the. vacuum pipe 11. The opening of valve 16 and closing of valve 18 operates to stop the flow of oil through pipe 5 and permits the oil to escape from chamber 2 into tank 1. through the check valve 4, from whence it passes out through pipe 10 back to the crank case. p

As the oil flows out of the chamber 2 the fioat l7 lowers until it engages the stop 25 on the valve stem 15 and thereby forces said stem downward to the position shown in,

Fig. 1 closing the valve 16 and opening valve 18 thereby again establishing a vacuum in chamber 2 and causing the oil to flow through pipe 5 into chamber 2.

The emergency oil pipe 9 extends into the oil of the crank case a greater depth than the pipe extension 8 and may be used to restart the engine after it has stopped owing to lack of fuel supplied by pipe 8. This is accomplished by turning the valve Ttobring said pipe 9 into communication with pipe 5 and oil will be supplied until the'reserve is exhausted. v V

From'the above description it. will be ohvious'that when the suction pipe 5 ceases to draw oil, air will be sucked in therethrough and carried through the vacuum chamber out through port 241- into the vacuum pipe 11 and to the manifold between the carbureter and the engine. This inflowing air will render the material fed to the motor noncombustible siuce this supply of airavill cause the flowing of gasoline to cease and therefore the motor will stop for lack of fuel. This stoppage of the motor when the oil ceases to be supplied prevents any possi- Shouldit be desired to continue running the motor after the first stoppage thereof, the valve -7 is turned to bring into communication the reserve oil supply pipe 9 and the operation above described. will be repeated and the engine continueto run until the reserve is exhausted and the motor will again stop asin the first instance.

More or less gasoline in liquid as well as vapor form enters the crank case through leakage around the piston rings. The liquid gas mixes with the oil in. the crank case and is sucked out into the tank 1, and being hot the gasoline is vaporized and drawn into the intake manifold while the heavy oil passes to the bottom of the tank and is returned to the crank case. Thus is the gas filtered from the oil in tank 1 and added to the fuel supply in the intake manifold. The vaporized gas in the crankcase is not filtered off until the supply of oil is exhausted and pipe-5 draws this vapor and air from the crank case into tank 1 from which it is drawn into the intake manifold andwhen bustion, the motor will stop for lack of fuel.

Since all lubricating oils when heated give off vapor capable of combustion, this system supplies a suitable amount of fuel to the motor in addition to the gasoline vapors which are sucked from the tank 1 and fed to the-motor through pipe 11.

This drawing off of the gasoline which has leaked into the crank case leaves the lubricating oil much more serviceable as a lubricant. Owing to the coolingeffect produced the lubrication-will be more perfect th e lubricating miles increased, and the life ofthe motor prolonged.

this mixture of, gas and air becomes too lean to support com- To permit oil to flow out of tank 1, an

pipe leading from the upper end of said vac-:

uum chamber, a neck carried by the top of said vacuum chamber with a bore extending therethro-ugh, said neck and top having a bore connecting the interior of the tank with the atmosphere, a perforated cap mounted on said neck, a vertically movable float controlled stein on its outer end to normally close the bore leading to the chamber-,another valvecarried by said stem to close said suction pipe .on theopening of the bore in the neck, a guide for saidlast mentioned valve depending from the top of saidchamher, a float loosely mounted on said stem,

and a stop on said stem to engage said guide. In testimony that I claim the foregoing as my own, I have hereto affi'xed mysignature in the presence'of two witnesses. Y J

I LLOYD B HUBBARD, lVitnesses: V

V H. BURmisoN, J13, I MELVIN M. GARRETT.

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