US1801918A - Heat-controlling means for charge-forming devices - Google Patents

Description

April 21, 1931. w. G. HEGINBOTTOM HEAT CONTROLLING MEANS FOR CHARGE FORMING DEVICES 2 Sheets-sheet 1 Original Filed March 14, 1923 inventor hlka/n/aarfa/w April 21, 1 3 w. e. HEG INBOTTOM HEAT CONTROLLING MEANS FOR CHARGE FORMING DEVICES 2 Sheets-Sheet 2 Original Filed March 14 1923 grwentoz W Patented Apr. 21,1931

unite, STATES WALTER e. rrnerneo'rronr, or FLINT, nicnrenmnssrelvon TO MARVEL CARBURETER PATENT orricr.

COIEPANY, GF'FLINT, IVIIOHl-ZGAIT, A CORPORATION OF INDIANA HEAT-CONTROLLING IIIEANS FOR CHARGE-FORLIING DEVICES Original application filed I application filed July 30,

v This invention relates to certain new and useful improvements in heat controlling means for charge forming devices and is a divisional application of ny application filed March Li, 1923, SerialNumber 62:),Q55, now Patent No. 1,750,637, the object being to provide novel means for controlling the application of heat to the charge forming device whereby the temperature of the charge can be regulated to a nicety in order to produce an explosive charge of high elliciency without any danger of overheat1ng the charge throughout the entire range of operation of the engine under all atmospheric conditions.

Another object of my invention is to provide heat controlling means so constructed tnat when used in connection with an in- .ternal combustion engine that when starting the engine I am'able to apply as large a volume of exhaust gases as desired for as long a time as desired to heat the charge, and so arranged that when the throttle 1S .opened to any predetermined position from closed position to full open position, the means for controlling the 'applicatlon of heat will be operated so as to lessen the volume of the heating medium passing through v"the heating jacket.

A still further object of the invention is to provide means for allowing the'charge throttling valveto move any predetermined desired distance'before thev exhaust throttling valve is moved, whereby the exhaust throttling valve will dwell on its seat while the throttle valveis moved a predetermined distance so as to hold the volume of exhaust gases in the heating chamber for. heating the charge quickly while the engine is warming up. r

A still further object of the invention is to provide an additional valve having a connection with the connecting rod of the-exhaust and charge throttling valves so that the volume of exhaust, gasesdelivered to the heat jacket will be regulated by the position of the exhaust valve.

Other and further objects and advantages of the invention will be hereinafterset forth March 14, 1923, Serial No. 625,055.

Patent No. 1,750,637. Divided and this 1925. Serial no. 47,088.

and the novel features thereof defined by.

the appended claims. In the draw1ngs,

Figure l isa side elevation of an internal proved construction of heat controlling means; and

Figure 4 is a detail View of the guide member and its connection to the throttle and main exhaust valve.

In the drawing 1 indicates an internal combustion engine; 2 the exhaust manifold, 3 the intake manifold and d a charge forming device connected thereto which is herein shown provided with a valve controlled air inlet 5 to which is connected a conduit 6 extending from an air heater 7 located around the end of the exhaust manifold 2, said conduit being provided with an additional valve controlled air inlet 8 for regulating the temperature of the air delivered to the charge forming device.

' The charge forming device :l is provided exhaust manifold 2 and secured thereto in any desired manner so that the exhaust gases from the exhaust manifold will circulate through the heat acket 9 to heat'the charge in its passage to the internal co nbustion engine and while I have shown a particular construction of heat acket, it is, of course, understood that various forms of heat jackets can be employed without departing from the spirit of my invention and therefore I do not wish to limit myself to the particular manner of applying heat to the charge in its passage to the internal combustion engine.

The inlet 10 of the heat jacket 9 is provided with a valve 12 mounted on a stem 13 provided with an arm let for operating lating valve for controlling the volume of gases passing into the heat chamber of the acket and is adapted to be operated in conjunction with the controlling mechanism as will be hereinafter fully described.

The end of the exhaust manifold 2 has mounted therein an exhaust throttling valve carried by a valve stem 16 provided with an arm 17 for operating the same, said valve being capable of completely closing the outlet of said exhaust manifold to cause the entire volume of exhaust gases to pass through the heat jacket.

Secured to the end of the exhaust manifold is a coupling 18 from which extends an exhaust pipe 19 to the n'mfller (not shown) in the usual manner. The coupling 18 is provided with an inlet nipple 20 from which extends a conduit 21 to an outlet nipple 22 formed on the heat jacket 9 of the charge forming device whereby the exhaust gases will be bypassed around the valve 15 when in closed position so as to pass through the heat jacket and heat the ex losive charge in its passage to the internal combustion engine.

The charge forming device is pro.*ided with a throttle valve 23 carried by a shaft 24 provided with an arm 25 to which is connected an operating rod 26 controlled in the usual manner from the body of the vehicle to which the device is attael'ied.

The main object of this invention to control the application of heat to a nicety so that the temperature of the charge being formed by the charge forming device can be controlled from the seat of the vehicle to which the device is attached in such a manner that after once being set, the application of heat is controlled by the movement of the throttle valve of the charge forming device and to accomplish this result I arrange on the shaft Q-l: of the throttle valve 23 a cam 27, which is loosely mounted thereon and is capable of turning on theshaft, the position of said ram being controlled by an opera ing rod :18 which is connected to a crank 29 provided with a lever 30 vim-king in an indicating plate 31 secured to the dash of the n or vehicle as clearly shown in Figure 1, whereby the cam can be rotated around the throttle shaft.

In the drawing I have shown this cam mounted directly on the throttle shaft 2i, but it is. of course, understood that the cam can be mounted adjacent the throttle shaft on a suitable support and operated in the same manner, but I have found that the manner of mounting the cam simplified by mounting it directly upon the shaft, but I do not wish to limit myself to any particular way and position of mounting the cam.

The cam is herein shown held in its adjusted position by frictional means which comprises a pin 33 secured in the wall of the heat jacket and extending through a slot 34 formed in the cam plate 27, said pin carrying a frictional washer 3;) held in frictional contact with the outer face of the cam by coil spring 36 which allows the cam to be moved by the operating means located on the dash of the motor vehicle to which the device is attached and be retained in its adjusted position.

This is only one form of means for adjusting and holding the cam plate in its adjusted position and I do not wlsh to limit myself to the use of this particular construction of means as I am aware that various other forms of means for adjusting and holding the cam plate in adjusted osi tion can be used without departing rom the spirit of my invention.

The cam plate is provided with a slot 37, the particular formation of which can be changed, but as herein shown it is provided at one end with a substantially vertical portion and a substantially horizontal portion, which gradually terminates in a downwardly extending portion. Slidably mounted within the slot 37 of the cam plate is a member 38 provided with a rollerhaving guide flanges for holding the same in the guide way formed by the slot and can be in the nature of an antifriction roller to facilitate the movement of the member within the slot.

The member 38 is provided with a reduced outer end on which is pivotally mounted a hub 39 provided with a socket 40 in which is secured an operating rod &l which has its free end pivotally and adjustably connected to the arm 17 of the exhaust gas throttling valve 153. The member 38 carries a rigid arm 42 which is pivotally connected at its free end to a pin 414- pivotally mounted in the outer end of an arm 45 fixed on one end of the throttle shaft 2i whereby the member 38 travels vertically in the vertical portion of the slot 37 of the cam plate when the throttle valve shaft is oscillated so as to allow the throttle valve to move a predetermined distance before the n'iovement of the arm carried thereby causes the arm of the exhaust throttle valve 15 to move, whereby the exhaust throttle valve 15 will dwell on its seat as the throttle valve opens until a predetermined distance has been reached where the further movement of the throttle valve will cause the exhaust valve to open or move tlmrewith, the movement of the exhaust valve in respect to the throttle valve being determined by the shape and position of the slot in the cam plate. lVhile I have shown a slot of peculiar formation, I amaware that the same can be changed to increase or decrease the distance of travel of the throttle valve before the exhaust throttlevalve is moved'and therefore I do not. wish to limit myself to the details of construction ashereinshown as I am aware that various forms of cam plates can be used for guiding themember connectingthe throttle valve to the exhaust throttle tocause the exhaust throttle valve to dwell on its seat a predetermined length of time after the throttle valve of the charge forming device has opened "a predetermined distance.

In the construction shown and thus far described it will be seen that I have provided a heating means control wherein means is provided for completely diverting the exhaust gases out of theirnatural path of travel through a heating chamber. to heat the charge in its passage to the internal combustion engine controlled by the movement of the throttle valve ofthe charge forming device in connection with adjustable means whereby the volume of exhaust gases del1v-' ered to the heating means can be controlled to a nicety so that under different atmospheric conditions more or less heat 'canbe applied as necessary.

It will also be noted that in connection with the heating means for heating the charge produced in the charge forming device, I have provided an air heater which is located to the engineside of theexhaust throttle valve and so connected to" the air inlet thatthe air will be heated before being delivered to the charge forming device,

means being provided for regulating the temperature of the, air by an atmospheric air valve.

For controlling the position ofthe volume valve I provide the operating rod 41 employed for a connection with the throttle valve of the charge forming device with a member 55 to which is adjustably connected a bolt 56 to which is pivotally connected an operating rod-57 which extends upwardly and is connected to the arm 14 carried by the shaft 13 of the volume valve 12 disposed in the inlet of the heatingjacket so that it is moved with the exhaust throttling valve and by the adjustable connection, the rela tive positions of these two valves in respect to their closed positions can bechanged and in practice I preferably connect the same in such a manner that when'the exhaust throttle valve is closed, the valve 12 is wide open or ice versa and I have found that in; this construction positive means is provided for completely cutting off the application of heat to the charge forming device by the movement of the throttle as when the throttle is moved into open position and the valve 12 is moved into closed position so as to completely close the exhaust inlet to the heating jacket of the charge forming device.

While in the drawing I have shown the volume valve arranged in the inlet passage ofthe heating jacket for heating the explosive charge, it is, of course, understood that the same can be arranged in the outlet passage for controlling the volume of exhaust gases passing through said heating jacket asshown in my original application, Serial Number625,055, filed March 14, 1923, now Patent No.1,750,637, and therefore I do not wish to limit myself to the position of this volumevalve for controlling the exhaust gases. I

IV hat I claim is 1. The combination with an internal combustion engine having an exhaust passage, intake passage and charge forming device connected thereto, of a heater for heating the charge in its passage to the engine, a valve for controlling the passage of exhaust gases to said heater, a valve for controlling the passage of explosive charge to said engine, an adjustable guide member, a movable member mounted in saidv guide member, a connection between said movable member and saidvalves, a volume valve for controlling the passage of exhaust gases throughsaid heater, and a connection be tween said volume valve and the valve for controlling the exhaust gases. V

2. The combination with an internal combustion eng ne having an exhaust passage,

intake passage and charge forming device connected thereto, of a heater for heating the charge in its passage to the engine, a'

valvecontrolling the passage of exhaust gases. to sald heater, a valve for controlling the passage of explosive charge to said en- 3. The combination with an internal combustion enginehaving an exhaust passage,

intake passage and charge forming'devioe connected thereto, of a heater for heating the charge in its passage to the engine, a

valve for controllingthe passage of exhaust gases through said exhaust passage, means for conveying the exhaust gases from said passage to said heater, a volume valve for controlling the passage of exhaust gases through said heater, a throttle valve for said charge forming device, a plate provided withv a guideway disposed adjacent said charge forming device, a member mounted in said guideway and having a connection with the valve for throttling the exhaust and explosive charge, a connection between said exhaust throttling Valve and said volume controlling valve and means for adjusting the position of said plate to vary the effect. of movement of the throttle valve on the exhaust throttling Valve.

4. The combination with an internal combustion engine having an exhaust passage, intake passage and charge forming device connected thereto, of a heater for heating the charge in its passage to the internal combustion engine, a duct for supplying exhaust gases from said exhaust passage to said heater, a volume valve mounted in said duct, a valve in said exhaust passage, means for supplying warm air to said char c forn1- ing device, a throttle valve for saic charge forming device, a member connecting said valves, means for guiding said member to vary the efi'ect of movement of the throttle valve on the exhaust valve and a connection between the valve arranged in the duct and the valve in the exhaust passage,

5. The combination with an internal combustion engine having an exhaust passage, an intake passage and charge forming device connected thereto, of a heater for heating the charge in its passage to the engine, said heater being in communication with the ex haust' passage, a throttle valve for said charge forming device, a throttle valve for said exhaust passage, a volume valve for controlling the passage of exhaust gases through said heater, an adjustable plate disposed adjacent the throttle valve of said charge forming device, a movable member mounted in said plate, a connection between said movable member and throttle valve of said charge forming device, a rod connecting said movable member with the exhaust throttling valve, adjustable means carried by said rod and a connection between said adjustable means and the volume valve.

6. The combination with an internal combustion engine having an exhaust passage, intake passage and charge forming device connected thereto, of a heater for heating the charge in its passage to the engine, a throttle valve for controlling the passage of exhaust gases through said exhaust passage, means for conveying the exhaust gases from said passage to said heater, a volume valve controlling the passage of exhaust gases through said heater, a throttle valve for said charge forming device, a plate provided with a guideway disposed adjacent said charge forming device, a member mounted in said guideway, a connection between said member and the throttle valve of said charge forming device, a rod connecting said member to the exhaust throttling valve, a block carried by said rod, a bolt adjustably mount- :d in said block, a rod connecting said bolt to the volume valve and means for adjusting the position of said plate to vary the effect of movement of the throttle valve on the exhaust throttling valve.

7. The combination with an internal combustion engine having an exhaust passage, intake manifold and charge forming device connected thereto, of a heater for heating the charge in its passage to the engine, a valve for controlling the passage of exhaust gases to said heater, a volume valve for controlling the passage of exhaust gases to said heater, a valve for controlling the passage of explosive charge to said engine, a memher having a connection with said valves, a connection between the exhaust throttling valve and said volume valve and means arranged in the path of travel of said memher to vary the effect of movement of the charge throttling valve on the exhaust throttling valve.

8. v The combination with an internal com bustion engine having an exhaust passage, intake passage, a charge forming device connected thereto, of a heater for heating the charge in its passage to the internal combustion engine, a duct for supplying exhaust gases from said exhaust passage to said heater, a valve in said exhaust passage, a warm air stove for supplying warm air to said charge forming device, a throttle valve for said charge forming device, a volume valve controlling the passage of exhaust gases through said heater, a member connecting said volume valve to said exhaust throttling valve, a connection between said throttle valve and exhaust valve, means controlling the temperature of air delivered to said charge-forming device and means to vary the effect of movement of the throttle valve on the exhaust valve.

In testimony whereof I hereunto a'liix my signature.

WVALTER G. HEGINBOTTOM.

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