US1291795A - Valve for hot-air accelerators. - Google Patents

Description

H. F. DU CHESNE.

VALVE FOR HOT AIR ACCELERATOBS..

APPLICATION FILED MAYZZ. I917.

1,291,795. Patented Jan. 21,1919.

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HARRY F. DU CHESNE, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO HARRY F.

WESLER, 0F CINCINNATI, OHIO.

VALVE FOR HOT-AIR ACCELERATORS.

Specification of Letters Patent.

Patented Jan. 21, 1919.

Application filed May 22, 1917. Serial No. 170,324.

1 b all whom it may concern:

Be it known that I, HARRY F. DU Cirnsnn, residing at Cincinnati, Hamilton county, State of Ohio, have invented certain new and useful Improvements in Valves for Hot- Air Accelerators for Automobile-Engines, of which the following is a clear, full, and exact description, attention being called to the drawing which accompanies this application and forms a part thereof.

This invention relates to new and useful improvements in valves for hot air accelerators for automobile engines, said accelerators being devices used in connection with automobile engines for the purpose of admitting hot air to the intake manifold to accelerate the operation of the engine.

The valves whereby this admittance is controlled are attached to the manifold and provided with actuating means extending rearwardly within convenient reach of the driver for manipulation.

The invention consists of the particular construction of such a valve which is of a character to permit ready attachment in position and is of compact formation which does not take up much space.

This particular construction is described hereinafter and pointed out in the claims as well as illustrated in the accompanying drawing in which:

Figure 1 shows accessory parts of an automobile engine with the accelerator and its controlling valve in position.

Fig. 2 is a longitudinal section of the valve taken in a horizontal plane.

Fig. 3 shows an end view of the valve.

In the drawing letter A indicates the in take manifold, and letter B indicates the exhaust manifold. Letter C indicates the carbureter. D is a shell casing in form of an inverted cone and at its larger end is closely fitted against the exhaust manifold.

It constitutes the heater by which air to be passed into manifold A is heated before admitted into the same.

Passage of the air from this heater to the manifold is through a cylindrical valvehousing 5 which is open at both ends and at one end is provided with a screw threaded nipple 6 which is fitted to a screw-threaded opening 7 in the wall of the intake manifold whereby connection of the valve-housin to the nipple is accomplished.

The heater communicates with the interior of the valve-housing by means of an opening 8 in the side of the latter (see dotted lines in Fig. 2) to which opening the shell of the heater at its narrow end it fitted.

Passage of the air to the manifold is controlled by a valve 9 fitted to seat against a shoulder 10 which is formed within the valve-housing and located between opening 8 and nipple 6.

A stem 11 extends rearwardly from the valve and is fitted into a sleeve 12 seated in the other end of the valve-housing, both serving as complementary means to guide the valve during its movements to and from its seat on shoulder 10.

Valve 9 is normally held against shoulder 10 by means of a spring 13, sleeved upon stem 11 and confined between said valve and a shoulder at the outer end of the valvehousing, said shoulder being formed by sleeve 12.

The valve is actuated for opening as shown in dotted lines in Fig. 2 by means of an angle lever 14 which is fulcrumed between two lugs 15l5 projecting laterally from the valve-housing.

It extends into the valve-housing through a slot 16 between these lugs and engages the valve stem by means of a slot 17 in the same and which slot is occupied by one end of said lever.

Sleeve 12 is also lengthwise slotted in its side as shown at 18 to permit free movement of the inserted end of the lever, all three slots being in registry with each other.

The lever is manually operated by any means which may be conveniently positioned within reach of the driver as by a hand lever or by a treadle, connection with these means being made by a push rod 19.

When this rod is manipulated by being pushed toward the valve-housing, lever 14 is also moved toward the valve-housing and causes the valve to move outwardly thereby admitting hot air to manifold A.

Having described my invention I claim as new:

1. In an accelerator valve, a valve-housing having an internal annular valve seat, and having a lateral passage to its exterior close to said valve seat, said housing being externally threaded in its part adjacent to this end, and having an internally threaded part and a longitudinal slot through one wall adjacent to its other end, an externally threaded sleeve screwed into said interiorly threaded part with a slot registering with said slot of said housing, a valve slidably fitting in said housing against said valveseat, and having a stem extending into said sleeve, and said stem having a slot registering with said slots in said sleeve and said housing, a spring lying along said stem and compressed between said valve and said sleeve, and a lever fulcruined on said housing and extending through the slots in said housing and said sleeve into the slot in said stem. 7

2. In an accelerator valve, a valve-lions ing having an internal annular valve seat, and having a lateral passage to its interior close to said valve seat, said housing being externally threaded in its part adjacent to this end, and having an internally threaded part and a longitudinal slot through one wall adjacent to its other end, an externally threaded sleeve screwed into said interiorly threaded part with a slot registering with said slot of said housing, a valve slidably fitting in said housing against said valveseat, and having a stem extending into said sleeve, and said stem having a slot registering with said slots in said sleeve and said housing, a spring lying along said stem and compressed between said valve and said sleeve, and a lever fulcrumed on, said housing and extending through the slots in said housing and said sleeve into the slot in said stem, said lever comprising an 2l-I111 eXtI1Cl-' ing along the outside of said housing for suitable manipulating connection, whereby said lever is entirely contained within the limits of the length of the valve-housing.

In testimony whereof I hereunto a'fiix my signature.

HARRY F. DU oHEsNn' Copies of this patent may be obtained for five cents each. by addressing the "Commissioner of Patten-ts;

Washington, I. G.

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