US1496711A

US1496711A - Charge-forming device

Info

Publication number: US1496711A
Application number: US429664A
Authority: US
Inventors: Louis R Kierland
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-12-10
Filing date: 1920-12-10
Publication date: 1924-06-03
Anticipated expiration: 1941-06-03

Description

. L. R. KIERLAND CHARGE FORMING DEV I CE Filed Dec. 10 1920 WITNESSES HVVE/VTOR Lou/SE K/EPL/WD a ATTORNEYS Patented June 3, 1924.

orrice.

'LOUIS R. KIERLAND, OF RUSHFORD, MINNESOTA.

CHARGE-FORMING DEVICE.

Application filed December 10, 1920. Serial No. 429,664.

State of Minnesota, have'invented a new and Improved Charge-Forming Device, of which the following is a full, clear, and exactde scription.

The present invention relates to new and useful improvements in charge forming devices for internal combustion motors.

It is one of the objects of the present invention to provide a new and novel means for supplying heated air to the charge taken in to the intake manifold of the motor.

It is another object of the invention to provide means for supplying the heated air to the charge taken in at a time after the charge has been formed.

It is a further object of the invention to provide a new and novel means for introducing the heated air to the charge formed at a point anterior to the throttle of the carbureter.

A further object of the invention is to provide means for automatically controlling the flow of fuel to the carburetor.

It is a still further object of the invention to provide automatic means for controlling the fuel, which automatic means is thermally controlled and regulated by the temperature of the motor.

With the above and other objects in view, reference is had to the accompanying drawings, in which Figure 1 is a side elevation partly in section of a charge-forming device constructed in accordance with the present invention;

Fig. 2 is a top plan view thereof showing a portion of the device in horizontal section.

Referring to the drawings, the reference character 5 designates the exhaust manifold of an internal combustion motor, and 6 designates the intake manifold thereof. The reference character 7 designates a carbureter of any desiredtype, and said carbureter is supplied with suitable fuel by means of the pipe 8 leading thereto from a suitable source of supply (not shown).

In carrying out the present invention a plurality of concentric pipes 9 and 10 are disposed within the exhaust manifold 5 in such a manner as to be subjected to the heat of the exhaust gases passing through the manifold from the several cylinders of the motor. These pipes are rigidly secured together at one end as at 11, and at this point they are supported within the manifold by means of a suitable bracket orthe like 12. As more clearly shown in Fig. 1, one end of the pipe 9 leads from the exhaust manifold, as at 13, and is connected to the carbureter as indicated by the reference character 14 anterior to the throttle valve 15 thereof. The opposite end; of the pipe 9 extends through one end of the exhaust manifold as at 16, and exteriorly of the exhaust manifold 5, this pipe is provided with a lug or shoulder 17. The reference character 18 designates a bracket rigidly secured as at 19 to the exhaust manifold, and pivotally mounted on the end of said bracket, as at 20, is a lever 21, which lever has an angularly disposed body portion 22, and an angularly disposed end 23. The an gularly disposed end 21 of the lever is provided with an opening 24, through which the pipe 9 passes and the shoulder 17 heretofore mentioned is adapted to engage said lever as at 25.

The fiow of fuel to the carburetor 7 from the pipe 8 is regulated by means of a needle valve 26, which needle valve is threaded into the top wall of the carburetor, as at 27, to

provide adjusting means therefor.

In carrying out the invention, the needle valve 26 is provided with a relatively long stem 28, and said stem 28 passes through a bracket 28 and is provided upon its upper end with a bell crank lever 29. The angularly disposed end 23 of the lever 21 is adapted to be pivotally connected as at.30, to a lever 29, and in order to maintain the end of the lever 21 in contact with the lug or shoulder 17 of the pipe 9, a coil spring 32 is connected as at 33, to said lever 29, and as at 34 to a bracket 35 carried by the exhaust manifold. The end 16 of the pipe 9 is bent downwardly as at 40, and the free end 41 of this ipe extends into a suitable receptacle 42. ading into the receptacle 42 is a pipe 43, and said pipe 43 is adapted to extend to the radiator filling opening ofthe radiator in connection with which the motor is used. The bottom wall of the receptacle 42 is open in order that the products of condensation within the vapor may be discharged without passing into the pipe 40, and subsequently to the charge-forming device.

The throttle valve 15 is controlled in the ordinary manner by means of a pull rod 50 and a lever 51, it being understood that the pull rod 50 extends to a suitable point within easy access of the operator.

The device operates in the following manner:

Assuming that the motor is cold and has been started, as it continues to operate and warms up, the pipes 9 and 10 begin to heat up and the air in passing through said pipes will likewise be heated. As the pipe 9 heats up and expands longitudinally, the shoulder 25 rocks the lever 21 about its pivotal point 20 and tends to partially close the needle valve 26, thus reducing the supply of fuel to the carbureter 7 Owing to the fact that the air introduced through the pipe 13 to the carbureter is highly heated since it has passed through the exhaust manifold 5, the operation of the engine will not be disturbed since it is a well-known fact that if heated air be introduced to the char e, the quantity of fuel may be correspon ingly reduced.

To promote combustion within the motor, and, at the same time, operate upon a socalled leaner mixture, the air which is introduced into the carbureter through the medium of the pipe 13, will be taken through the

pipes

43 and 40, and will be introduced to the pipe 43 immediately over the Water in the radiator heretofore mentioned and owing to the vapors arising from said water, will contain considerable moisture which materially aids in the formation of a charge which is capable of more perfect combusT,

tion. 1

By this construction it is apparent tha the present invention provides means by which the quantity of fuel supplied to the carbureter is automatically regulated depending upon the temperature of the motor, and also that as the temperature of the motor rises, the quantity of fuel supplied to the carbureter is automatically reduced.

In lieu of passing the pipe through the exhaust manifold and leading to a point between the carbureter and the intake manifold 6, it is obvious that if desired the pi e 40 could be led directly to the lower inta e pipe 8 of the carbureter 7 and the moisture -vice, an intake manifold, and an exhaust manifold, an inverted open-ended receptacle spaced from the exhaust manifold, a conduit extending longitudinally for a ortion of the length of the exhaust manifol and having one end secured in an opening at one end of said manifold, an air conduit extending through the first mentioned conduit with the opposite ends carried downwardly from the exhaust manifold, one end of the conduit having communication with the closed end of the inverted receptacle, a third conduit in communication with the closed end of the receptacle, said third conduit be- ,ing adapted to supply moisture to the receptacle, whereby moisture and air. from the open-ended receptacle is supplied to the second conduit to be heated by the exhaust manifold, the other end of the second conduit being connected to the charge forming device.

LOUIS R. KIERLAND.