US879837A - Explosion-engine. - Google Patents

Description

PATENTED FEB. 18, 1908.

G. P. PEARSON.

EXPLOSION ENGINE.

APPLICATION IILIID 113.13, 1907.

jfl-ve?? Z027 CTZmar-Jog casing 1.

mi TEn sTATEs PATENT OEEICE.

CARL F. PEARSON, CHICAGO, ILLINOIS, ASSIGNOR TO THE `'lIl-tIUIIPH MOTOR CAR COMPANY, ACORPORATION OF ILLINOIS.

ExPLosroN-ENGINE. i

Specification of Letters Patent.

Patented Feb. 18, 1908.

Original application led September 22. 1906. Serial 110.335.835. Divided and this application filed February 13. 1907.

' Serial lilo. 357.16m

To all whom it may concern:

Be it known that I, CARL F. PEARsoN, ad citizen of the United States, residing at Chicago, in the county of Cook and lState of Illinois, have invented certain new and useful Improvements in Explosion-Engines, of which the following is a speciiication. The object of my invention is to provide an lmproved reducing valve particularly adapted for use in connection with the starting device for explosion engines described and claimed in my companion application Serial No. 335,885,led on or about September 22, 1906, of which application this is a division.

The drawing represents my improved valve in cross section, together with part of the apparatus to which it is connected. The valve seat is formed at the lower part of a- This casing is screwthreaded at the lower end to afford means for attaching 1t to the engine structure. The casing is formed with an upwardly directed shoulder 2 and is screw-threaded at its upperend. Seated upon the shoulder 2 is an outer casing ti between which and the upper part of the inner casing 1 is an annular chamber 4. A screw-threaded cap 5 is mounted upon the upper end of the casing Land the lower edge Of the cap bears upon the outer casing 3. Suitable packing rings 6 upon the lower edge o f the cap and upon the shoulder 2 afford a tight joint at the upper and lower edges of the outer casing 8. A hole is tapped `in the outer casing for the insertion of a pipe 7f which leads to a storage reservoir.

The lower end of the casing 1 is inserted in an opening in the engine casing adjacent yto the intake valve of one of the four cylinders of the engine, and the interior of said cylinder communicates with the reservoir through the reducing valve. The bore 8 of the inner casing is provided at its lower end with a conlcal valve seat 9. Co-acting with this seat is a valve 10 the upper part of which is square in cross section as shown at 11. The inner casmg is provided with radial perforations 12 opposite the square ypart of the valve, thus affording direct communication when the valve is unseated between the cylinder space and the storage reservoir. The upper end4 of the valve is provided with la stem 13 surrounded by a spring 14 which bears at itsl upper end against the cap 5 and at its lower 1n my parent application referred to, is to store some ofthe gases resulting from the i explosions, such stored gases to be used for the purpose of turning the engine over in starting. lWhen the pressure due to .an eX- plosion in the cylinder with which the valve communicates is greater than that due to the spring 14, the valve 10 will be raised from its seat and part of the products of combustion Will pass into Y the storage reservoir. This action will continue during the subsequent explosions in the cylinder to which the valve is connected until the combined pressure lof the gases continue in the reservoir and of the spring 14 are greaterV than the pressure caused by such eX losions. When this point is reached the valve will remain" closed and the engine will operate in the usual manner, the products of combustion remaining in the cylinder until released by the opening ofthe escape valve. If at any time the pressure in the reservoir falls below the desired limit the action of the valve will be automatically resumed and the desired pressure will be restored. Y -4 While I have described my improved reducing valve in connection with the starting device'de'scribed in my companion application referred to above, it will be obvio us that it is adapted for use in connectlon wlth any mechanism where it is desired to accomplish a similar function. I'claim:

1. A reducing valve, comprising an inner casing provided with a shoulder on lts eX- terior, an outer casing resting at one end on said shoulder, and a cap engaging the opposlte end of the outer casing and a so vengaglng the inner casing. Y

2. A reduclng valve, comprlsmg a' cylindrlcal casing screw-threaded at each'end,

' a shoulder on said casing, a screw-threaded cap on said casing, yan outer casing engaging said shoulder and cap forming a chamber which communicates with the interior of said inner casing and a spring pressedvalvev in said inner casing.

3. A pressure reducin valve for ex losion engines, comprising a tu ular portion aving u velve seat forme therein and radial cavities extending through the shell thereof, a plunger portion formed of substantially square stock and having a valve cone formed 5 upon one end and a spring seat upon the other end thereof, a spring beari upon the spring seat and mounted withinnte tubular portion, a. cap threuded upon the end of the tubular portion and fomin1 a, seat for the spring, and a cylindrical s ell portion in- 10 closing a portion of the tube and forming a tight chamber about such tube.

. CARL F. PEARSON. Witnesses:

W. W. SCOTT.

T. JONES.

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