US2100511A

US2100511A - Charge forming device

Info

Publication number: US2100511A
Application number: US8540A
Authority: US
Inventors: Harry A Kelty
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-02-27
Filing date: 1935-02-27
Publication date: 1937-11-30
Anticipated expiration: 1954-11-30

Description

H A. KELTY `2,100,511

CHARGE FORMING DEVICE.

Nov. 30, 1937.

Filed Feb. 27, 1'955 H7@ s 70 7l Patented Nov. 30, 1937 Y Y UNITED STATES PATENT OFFICE Y' f 2,100,511 Y I CHARGE FORMING DEVICE Harry A.V Kelty, New Castle, Par.

.Application February 27, 1935, Serial No. 8,540

sclaims. (cruz- 25) This invention relates to a device for supplying I designates an exhaust manifoldof an internal additional uids to the intake manifold of an combustion enginewhile II designates an intake internal combustion engine. manifold.

An object of the invention is the provision of The radiator,A generally designated by the nu- T a device which will supply an additional quantity meral I2, is connected with the cooling system of air in connection with vapors from the radiator of an engine and is provided with the usual connected with the cooling system of an engine, overflow pipe I3 extending from a space I4 at the vapors being derived from water, alcohol, and the top of the radiator to "a point as indicated` kerosene or a combination of any two of the at I5 slightly below the'bottom of the radiator. 101 vapors. A valve casing 2B has an internal chamber 2l 10V Another object of the invention is the provision which is placed in communication with the inof a device for supplying additional uids to an take manifold by means of aV pipe 22. VThis pipe intake manifold of an internal combustion engine has one end threaded at 23 into a nipple 24 of with a thermostat movably mounted for controlthe casing. The other end of the pipe is conl ling the flow of some of the fluids to the manifold, nected by a union 25 with a threaded nipple 26 15 the movable mounting of the thermostat providin the manifold II. .l ing for an adjustment of the thermostat towards A sleeve is threaded at 3I into a nipple 32 or away from the exhaust manifold of the engine. at the lower end of the casing. The sleeve is A further object of the invention is the proprovided with a central passagev 33 and a valve 2o ViSiOll 0f a deViCe fOr Supplying additional fluid seat 34 at itsupper end. A tubular member 35 20 to an internal combustion engine and including is threaded at 36 into an enlarged end 31 of the avalve casing in communication with the intake sleeve 3B and is provided with a hexagonal pormanifold and also in communication with a tion 38 wherebyV the tubular member may be source of fluid, a Valve being mounted for moveroi-,ated Y 25 ment inthe Casing and COIltIOllihg the 110W 0f The central portion of the tubular member is 25 l ud through the Casing t0 the manifold, a thelprovided with a passage 40 having a valve seat mostat being swingably mounted on the casing 4| on which is mounted a check Valve 42. A with means for securing the thermostat in proper Spring 43 has one. end in engagement with a p osition when moved to a predetermined posicheck valve 42 While the other end engages 'a 30 towards 0r away from the exhaust man1 collar I4 threaded into the upper end of the 30 0 passage 40; l Y f A still further object of the inventlon 1s the lA nipple 45 has an internally threaded pocket provision of a' device for Controlling tha ow of 46 to receive the threaded lower end of the tubuan additional fluid to the intake manifold of an lar member. 35. The nipple, svpmvided with a internal combustion engine Vand including a valve casing in communication with the intake manifold and also in comm-unication Withia source Seat 4| of fluid, a. thermostatic strip being swingably f carried by a support swingably mounted on the .A Valve 5u has althrdefi sem fdsosdjt valve casing for adjustment towards or away nght angles`t0:the engl udma ams o. e mpp.e 40

from the exhaust manifold, the thermostatic and 1s gapted to 'ntrhthet oyprf' strip having a swivel connection with a valve through e. sge b e525 em 1S p' om movable in the casing and controlling the ilow Wlth a' mamp a mg mem er 43 in the tubular member 35 and below the valve of fluid through the casing The reduced end 53 of the nipple isadapted to 45 `1n the drawmg: be connected with a source of fuel such as gaso- 45 Figure 1 is a, fragmentary View in elevation line. `A tubular connection 55 1s threaded into aV and partly in section of an internal combustion hOHOW boss 55 0n the 035mg 25 and thls tubular engine showing my-device connected between the member has a Passeig? 51 Connetred- Wlth the intake manifold and the-radiator of an engine, Chamber 2| Ofhthe CaSlhg. The membel' 55 1S and threaded at 58 into the boss. 50

I Figure 2 is a horizontal section taken along A flexible tube 69, such as rubber, connects the the line 2-2 of Figure 1, and Y tubular member 55 with a pipe GI which extends q Figure 3 is a vertical section of a modified into a housing 62. The pipe 5I is in communiform of the device. l cation with the interior of the housing 62 inter- Y 5 5 Referring more particularly to the drawing, mediate the opposite ends of the housing.Y This .55

central passage 4l adapted to align with the port 35 housing is open, as shown at S3, while the opposite end 64 is closed.

A pipe S5 projects into the housing 62 and extends below the inner end of the pipe 6| and terminates short of the bottom 63 of the housing. This pipe extends above the closed end of the housing and is connected by a flexible tube 8% with the lower end |5 of the overflow pipe of the radiator.

A support in the form of a bar, as shown at l0, has an opening 7| adapted to be received by a threaded boss l2 on the upper end of the casing 20. The bar rests upon a shoulder 13 of the casing and is held in an adjusted position by means of a nut 'i4 threadedonto the boss l2.

The outer end of the bar '10 carries a sleeve 'l5 which receives a bolt 'i6 secured in place by means of a head Il and a nut I8.

A thermostatic strip, generally designated by the numeral 80, is formed of two sections, one section being of brass, as indicated at 8|, and the other section, as indicated at 82, is formed of steel. These two strips are secured together in the usual manner. The strip rests upon the sleeve 'l5 and is provided with a passage 33 through which the bolt 'F5 passes with the head l'i resting upon the strip 80.

The opposite end of the strip is provided with a slot 85 which is adapted to be received by an annular groove 86 formed in a valve stem El which is inserted in a passage 88 in the boss l2.

A conically-shaped valve 90 on the end of the valve stem engages the seat 3d in the sleeve 30.

The operation of the device shown in Figs. l and 2 is as follows: When the engine is cold the thermostatic strip 80 is bowed outwardly and upwardly from the valve casing 20, thereby raising the valve 90 from its seat 3d. Thus when the engine is started gasoline will be drawn through the passage 41, past the check valve 42 and thence through the casing 20, the tube 22, to the intake manifold As soon as the thermostatic strip has been aifected by the heat of the exhaust manifold l0, the strip will move inwardly towards the bar 'l0 and cause the valve 90 to close the passage 33 and thus cut oiT the supply of gasoline to the intake manifold.

It will be appreciated, however, that the chamber 2| of the casing 20 is always open to the air and to the vapors from the radiator l2., When the water in the radiator is sufficiently heated, vapors will pass through the overow tube |3 into the housing 62 and will be drawn through. the tube past the valve 90, and into the intake manifoid n.

It will be appreciated that duringV the winter months when the radiator has been supplied with the necessary alcohol, the alcoholic vapors will be drawn through the tube 5S into the intake manifold and will not only supply additional fuel but will aid in reducing the carbon and will also aid in loosening the carbon' which has already formed cn the piston head and the combustion chambers of each of the cylinders.

A quantity of kerosene is supplied to the `radiator and will oat upon-the water and as the water in the radiator is heated vapors of kero sene will also be carried into the intake manifold and will also aid in not only removing the carbon deposited on the walls of the combustion chambers but will prevent further depositing of carbon on the walls of the chambers. Thus it will be seen that the incursion of the vapors of the water, the alcohol and the kerosene will prevent knocks in the. cylinders.

The thermostatic strip 80 may be swung towards or away from the exhaust manifold l0 by loosening the nuts 14 sufiiciently to swing the bar '|0 on its pivot so that the strip may be nicely adjusted towards or away Vfrom the exhaust manifold in order to Vproperly time the closing of the valve 90 as will be desired during the varying conditions of the seasons throughout the year. In other words when the thermostatic strip is moved to a predetermined position adjacent the exhaust manifold I0, the thermostatic strip will come into action more rapidly for closing the gasoline supply as would be necessary during the warm months. During the winter months the thermostatic strip will be adjusted at a greater distance from the exhaust manifold in orderk to delay they closing of the valve S0 to permit the engine to operate under suicient power until the engine is suihciently warmed to require no additional fuel for the purpose.

It will be noted that the thermostatic strip 80 may be readily removed from its position by re-v moving the nuts v'|S and then the bolts 16. If

it be desired at any time to cause the valve to be closed when the thermostatic strip is heated, the thermostatic strip may be turned over and reversed from its position shown in Fig. 1 so that the brass strip 8| will be adjacent the bar i@ instead of away from it. Thus it will be seen that this particular form o thermostat may be used not only for varying the time of closing of the valve due to its swinging motion but it may be readily converted for operating vthe valve in the opposite direction.

In the device shown in Fig. 3 the thermallyoperated valve is adapted to control the supply of vapors to the intake manifold.

In this case the internally threaded boss |00 of the casing |0| is provided with a plug |02.

A pipe |03 is adapted to connect the casing with the intake manifold and for supporting the casing above the intake manifold. The pipe |03 is in communicationrwith a chamber |04 in the casing.

threaded boss |01 of the valve casing. Anut |08 secures the bar |05 in position. A thermo-V static strip in this case, indicated by thenumeral |09, has the brass strip ||ll adjacent the bar |05 while the steel strip is located outwardly. A bolt H2 and a nut ||3 secures the strip |09 to the bar |05. The construction of the valve ||2 and the thermostat are identical With the construction shown in Fig. l exceptthat the thermo'- static strip is reversed in position as has been previously explained.

A flexible tube a connects the casing with the housing 02 by means of the pipe 55.

By this construction the valve ||2 is normally opened when the exhaust manifold supplies sufcient heat to the thermostat to move the valve outwardly from its seat and vapors as has been previously explained from the radiator are supplied to the intake manifold. v Y Y In the radiator |2 the space I4 above the usual tubes, is shown at |33L as being supplied with a cooling iiuid which may be water or a mixture of water and alcohol. On top of the water and alcohol is a blanket of kerosene or a light grad of lubricating oil shown at Ma.

When the engine is started` some suction affects the top of the radiator and some vapor from the radiator together with air is drawn into the manifold n As the engine heats, the mixture of air and alcohol in the radiator is heated and an intimate mixture of aqueous and alcoholic vapors are formed. The vapors are drawn through the blanket of oil and some of the oil is vaporized and the oil vapors are carried along with the other vapors through the pipe I3 to the housing 62 where the vapors are mixed with the proper proportions of air and. the air and the vapors are intimately drawn into the intake manifold Il of the engine.

By such a method for operating an engine not only is carbon prevented by perfect combustion but the production of carbon monoxide is eliminated.

In some cases it may be preferable to dilute the light lubricating oil with kerosene.

It is to be borne in mind that where the wood oil is used in the specication and claims it is intended to comprehend kerosene, a light lubricating oil, or lubricating oil diluted with kerosene.

I claim:

1. In an internal combustion engine'having an intake manifold and an exhaust manifold, a device for supplying an additional iiuid to the intake manifold comprising a Valve casing, a valve in the casing, means for placing the casing in communication with the intake manifold, a thermostat having one end pivoted on the casing and swingable towards or away from the exhaust manifold, and means for adjustably retaining the thermostat in various positions, said thermostat being connected with the valve for operating the valve to open position when said thermostat is set in operation by the heat of the exhaust manifold. Y

2. In an internal combustion engine having` an intake manifold and an exhaust manifold, a device for supplying an additional fluid to the intake manifold comprising a valve for controlling the iiow of the iiuid to the manifold, a bar pivotally mounted on a' xed support,.and swingable towards or away from the exhaust manifold, means for adjustably retaining the bar in various positions, andra strip responsive to temperature changes secured to the bar and swingable therewith, one Vend of the strip being free and connected to the valve for causing opening of the valve when the strip is thermostatically operated.

3. In an internal combustion engine having an 'I intake manifold and an exhaust manifold, a device for supplying an additional uid to the intake manifold comprising a valve casing in communication with the intake manifold, a valve in the casing for controlling the flow of fluid, a strip responsive to temperature changesY and having a free end connected with the valve, means pivotally mounted on the casing and supporting the other end of the strip whereby the strip may be swung towards or away from the exhaust manifold, and means for adjustably retaining said supporting means in various positions between the casing and the exhaust manifold for varying the position of the strip with respect to the exhaust manifold.

HARRY A. mTY.