US2205812A - Preoiling system - Google Patents

Description

'June 25, 1940# l A; L. couTY PREDILING SYSTEM Filed July 9. lesa '3 fig-5 .l 'starting of the engine. It also has been proposed Figure 4 shows a modied form of the invenl0 45 the control of a. valve which is either operated one end n 0f a Tod l This rod extends down- 45 y Patented .lune 25, 1940 v l I I UNITED STATES PATENT OFFICE PREOILING SYSTEM Arnold L. Couty, Marsheld, Oreg. Application July 9, issaseriai No. 213,435

. s claims. (01.123-196) v Y This invention relates to a preoiling device for terial departure from the salient features of the internal combustion engines. y invention as expressed in the appended-claims.

It has been proposed to supply oil to the cyl- In the drawing, inders of internal combustion engines by forcing Figure 1 is a side view in elevation of an ens oil from the lubricating system of the engine to gine showing my device attached thereto. said cy1inders, Figure 2 is a vertical section taken on the line In this type of construction the engine must 2-2 of Figure 3. be in full operation to create the oil pressure so Figure 3 is a view in elevation of the device that the oil is not supplied to the cylinders at the shown in Figure 2.

to supply the engine cylinders with an additiontion.

al quantity of oil from a reservoir, butagain the Referring more particularly to the drawing, oil entering the reservoir is under varying pres- I0 designates an internal combustion engine havsures and the oil in this instance is not supplied ing any number 0f Cylinders to which is conl to the cylinders when the engine is started cold. neoled an intake manifold il and an exhaust En An object of this invention is the provision of manifold l2. y a preoiling system for the cylinders of internal An air inlet Pipe i3 is in communication with combustion engines whereby a predetermined the intake manifold ll and iS Controlled by means quantity of'oil is maintained in a position so that of a choke valve ith This choke valve is actu- Zd it can be supplied to the cylinders of an engine ated by a lever l5 and a rod i6 in any approved upon the initial starting of the engine, the resermanner. i voir for storing the cil being under atmospheric A Casina has a anged top portion 2l upon pressure under no1-mal conditions, which is mounted a cover plate 22. This cover `Another object of the inventionis the provision plate is Secured to the casing 2B by means oi 0f a del/lee for Supplying the cylinders of an in.. bolts 23. The lower end of the casing ls reduced 2d ternel combustion engine with a predetermined as Shown at 2B. Beyond this reduced portion is quantity of 011 in which' the 011 is Stored in a a threaded nipple 25 which is screwed into an reservoir and drawn into the cylinders by the Opening 26 formed in the intake manifold il. suction of the engine, a oat closing a discharge The easing 20 iS' provided With an oil cham- 30 port when all of the oil has been withdrawn from bei 30. an all Chamber 3l and a passage 32 lead- 30 the reservoir while closing an airport when the ing from the Oil Chamber through the threaded reservoir has been completely lled with oil. nipple 25 into the intake manifold l l.

A further object of the invention is the pro- An elongated Valve iS Slidably mounted in vision of an oiiing device for the cylinders er ina passage 36 in the reduced portion 24 and ex- 35 ternai combustion engines whereby oil will be tends across the passage 32 and normally closes 86 supplied directly to the cylinders when said cylthe same. A packing 3l .and a gland 38 prevent inders are cold and when the engine is started, the loss of Huid from the passage 36. the device including a reservoir which is adapted A Spring has one end engagingl a depending to be supplied with oil either from the Q11 supply Bilm yl 0f a bracket .2 WhlCh`iS Secured at 43 .i

40 of the engine or from a separate source, a valve the Casing 20. The other end 0f the Spring 4o controlling the amount of air admitted'to the oil abate a dise u held in place on the valve or rod receptacle, while a oat valve restricts the amount 35 by means 0f a Din 45.

of air admitted to the engine cylinders, the dis- The Guter end 0f thelod 35 iS Provided with charge of oil to the engine cylinders being unde;- an elongated slot 46 which is adapted to receive a tomatica in connection with Wardly as shown in Figure 1 and is connected-ton gsgleropelting mellyamsm of the (angina the free end of the choke lever I5. A rod 4B is This invention Wm be best understood from a connected at 50 to the outer end of the rod 35 consideration of the following detailed descripand extends to the dash for manual manipula' s tion by the operator of the car. 50 tion. 1n View 0f the accompanying drawing A pipe 5| projects through the side wall of the forming a part of the speeieetien: nevertheless, easing 2c and inte the chamber so. This end ci it is to be understood that the invention is not the pipe is sealed against the loss of uid by confined to the disclosure, being susceptibleof means of a gland 52 and a packing 53. I'he u such changes and modifications as define no maother end of the pipe as shown in Figure 1 exu n tends downwardly to an oil pump 54. On the other hand, a reservoir or storage tank may be employed, as shown in Figure 4. In this instance, a tank 56 is supported by the cylinder block in any approved manner and the pipe 5| extends from the bottom of the tank.

A float valve 56 is located in the chamber 3U and rises with the level of the oil in said chamber. When the chamber is empty said valve will rest upon the bottom of the chamber as shown in dotted lines in Figure 2. This float valve is provided with a central restricted passage 51 for a purpose which will be presently explained.

'I'he closure 22 is provided with a cup-shaped member 60 having a pocket 6| forming a part of the air chamber 3| and in this pocket is mounted an air valve 62 in the form of a oat which is adapted to close the port 63 in the cup-.shaped member 66. A cotter pin 64 has legs 65 which supports the valve 62 in the cup-shaped member 60., The weight of the valve 62 is sufficient to maintain said valve open except under certain conditions.

A gasket 66 and a gland 61 seal one end of a pipe 68 in the side wall of the reduced portion 24. This pipe opens into the passage 32.'. The other end of the pipe 68 is carried to the motors of a windshield wiper and this connection forms a convenient means for connecting the windshield wiper with the intake manifold.

The operation of my device is as follows: The chamber 30 is normally filled with oil so that when the valve 35 is operated either by the rod |69 or the connection 48 with the choke valve, the valve will open the passage 32 and allow the lubricant in the chamber 30 to flow through the passage 32 to the intake manifold whence the lubricant is 'conducted to the cylinders of the internal combustion engine.

-When the lubricant has been emptied from the chamber 30 the float valve 56 will seat upon'the top ofthe passage 32 and'close the same so that no more oil will be drawn into the engine cylinders. 1f the valve 35 is operated manually the operator of the car will close the valve after the engine has started. On the other hand, when the choke has been closed on starting the engine the valve 35 will be opened but it will be closed automatically when the cho-ke is again opened.

The oil chamber 30' will ll up with oil and be ready at all times for supplying the cylinders with additional lubricant when the engine is started, or when it is deemed nececsary to supply the cylviiiders with pre-lubricant particularly when the engine is cold. Since the valve 62 is normally open air will escape from the chamber 3| to permit the oil entering said chamber to rise.

The air vent or passage 63 is only closed by the valve 62 when the oil in the chamber 310 rises sufficiently for the purpose. At this time the float valve 56 will also engage the bottom of the closure plate 22. When the oil is lowered in the chamber 30 the air valve 62 will open the cham- Iberto atmosphere. Any excess oil in the chambers 30 and 3| will ilow back through the pipe 5| and back to its source after the engine has been stopped. However, the operation of the engine will maintain the chamber 30 lled with oil.

The vent 5l in the oat valve 56 will permit just enough air from the chamber 3| to enter the passage 32 above the valve 35 when the oil has been emptied from the chamber 30 and said float valve is resting upon the bottom of said chamber to break the vacuum or suction pressure against the float valve so that the oat will rise as the chamber 30 is being filled with oil and after the valve 35 has been closed.

The diameter ,of the passage 32, as shown in Fig. 2, is comparatively greater'than the 'diameter' of the pipe 5| so that when thevalve 35 is opened the oil in chamber 30 will pass rapidly to the intake manifold by means of suction and gravity and said chamber will be emptied before oil through the restricted tube 5| will tend to ll said chamber.

The air valve 62 permits free passage of air to and from the chamber 3| until it isV closed by the sufficient rise of the oil in said chamber.

The upper end of the rod @8 has a loose connection at 4l with the valve rod 35 by means of the slot 46 so that the rod 49 can reciprocate the valve 35 independently of the choke Valve |13 due to the fact that the angular disposed portion 41 of the rod 68 can move back and forth in the slot 46 without causing operation of the choke. The diameter of the pipe 5| is such 'that when it is connected to the tank 53, oil will not be drawn into the tank' faster than it is drawn oil? thereby permitting valve 56 to seat after the body lof oil in the chamber 30 has been discharged.

I claim: 1. A preoiling device for the cylinders of internal combustion engines having an intake o manifold, comprising a housing provided with a chamber for lubricating oil and a passage in the bottom thereof connecting the chamber with the manifold, means connecting the chamber with an oil supply, a float valve adapted to be lowered for closing the passage when oil has been emptied from the chamber, a manually operated valve controlling the admission of oil to the manifold, means for operating the last-mentioned valve.

2. A preoiling device for the cylinders of internal combustion engines having an intake manifold, comprising a housing provided with a chamber for lubricating oil and a passage in the bottom thereof connecting the chamber with the manifold, means connecting the chamber adjacent the top with an oil supply, a float valve closing the passage when the oil has been emptied from the chamber, a manually operated valve controlling the admission of oil to the manifold,

means for operating the last-mentioned valve, r

said housing having an air vent for admitting air to the chamber above the oil and a valve for closing said vent when the oil rises sufdciently in the chamber. A

3. A preoiling device for the cylinders of internal combustion engines having an intake manifold, comprising a housing provided with a chamber for lubricating oil and a passage connecting the chamber with the manifold, means connecting the chamber with an oil supply, a oat valve closing the passage when oil has been drawnfrom the chamber, a valve controlling the admission of oil to the manifold, means for operating the last-mentioned valve, the float valve having a restricted air opening for breaking the vacuum in the passage to permit the float valve to rise when oil is admitted to the chamber.

4. A preoiling device for the cylinders of internal combustion engines having an intake manifold, comprising a housingfprovided with a chamber for lubricating oil and a passage connecting the chamber with the' manifold, means connecting the chamber with an oil supply, a float valve closing the passage when oil has been 2,205,812 drained from thechamber, a manually operated l valve controlling Athe admission of oil to the manifold, means for operating the last-mentioned valve, a choke valve operating rod and means connecting the operating means for the last-mentioned means with said choke valve operating rod. 5. A preoiling device for the cylinders of internai combustion engines having an intake manifold, comprising a housing provided with a chamber for lubricating oil and a passage connecting the chamber with the manifold, means` connecting the chamber with an oil supply, a float valve closing the passage when oil has been Idrained from the chamber, a manually operated valve controlling the admission of oil to the manifold, meansfor operating the last-mentioned valve, a choke Valve operating rod, means connecting said choke valve operating rod with the last-mentioned means, said connecting means including means to permit independent manual operation ofthe controlling valve.

6. A preoling device for the cylinders of internal combustion engines having an intake manifold and a choke valve comprising a housing having a chamber therein, a passage connecting the chamber with the manifold and an air inlet opening, means connecting the upper end of the chamber with an oil supply, a valve controlling saidopening, a manually operated oil discharge valve controlling the now of oil through the passage to the manifold, means for actuating the choke valve, means connecting the last-mentioned means with the oil'discharge valve and means for actuating the oil discharge valve in dependently of the actuating means for the cloke valve.

7. A preoiling device for the cylinders of internal combustion engines having an intake `manifold and a choke valve comprising a housing having achamber therein, a passage connecting the chamber with the manifold and an air vent, a oat valve closing said passage when oil is drained from the chamber, means having a restricted opening and connecting the chamber with `anf:..oil'supply under pressure, an oil discharge valve controlling the flow of oil through the passage connecting the lchamber with the manifold, means for actuating the choke valve,`

means connecting the last-mentioned y means with the oil discharge valve, and means for actuating the oil discharge valve independently of the actuating means for the choke valve.

8. A preoiling device for the cylinders of internal combustion engines having an intake manifold and a choke valve comprising a housing havinga chamber thereina passage connecting the chamber with the manifold and an air inlet opening, means connecting the upper end of the chamber with an oil supply, a, valve controlling said opening, an oil discharge valve controlling the flow of oil through the passage to the manifold. meansfor actuating the choke valve, means connecting the last-mentioned means with the oil discharge valve and means for actuating the oil discharge valve independently of the actuating means for the choke valve, a float valve in the chamber and closing the passage when the oil hasbeen withdrawn from said chamber, said float valve being provided with a restricted opening to relieve suction on said valve.

ARNOLD L. COUTY.

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