US736715A

US736715A - Direct-acting gas-engine.

Info

Publication number: US736715A
Application number: US8807802A
Authority: US
Inventors: Paul Gervais
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-01-02
Filing date: 1902-01-02
Publication date: 1903-08-18
Anticipated expiration: 1920-08-18

Description

-PATENTED AUG.-18, 190s.

P. GERVAIS.

DIRECT ACTING GAS ENGINE.

APPLICATION FILED JAN. 2. 1902.

4 SHEETSSHEET 1.

N0 MODEL.

m w /d/ IN VENT? Zia 1% 6 A from/E 'rs No. 736,715. PATENTED AUG. 18, 1903. P. GERVAIS. DIRECT ACTING GAS ENGINE. APPLIOATION FILED JAN. 2, 1902. N0 MODEL.

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No. 736,715. PATENTED AUG. 18, 1903.,

P. GERVAIS. 1

DIRECT ACTING GAS ENGINE.

APPLICATION FILED JA N. 2, 1902.

4 SHEETS-SHEET 3.

N0 MODEL.

WITNESSES IN l/EN TOR mu s.

PATENTED AUG. 18,1903.

. P. GERVAIS.

DIRECT ACTING GAS ENGINE. APPLIGATION FILED JAN. 2', 1902.

N0 MODEL.

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Patented August 18, 1903.

PATENT Urricn,

PAUL GERVAIS, OF SEEBURG, GERMANY.

DIRECT-ACTING GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 736,715, dated August 18, 1903.

Application filed January 2, 1902. Serial No. 88,078. (No model.)

To all whom it may concern.-

Be it known that 1, PAUL GERVAIS, a subject of the King of Prussia, Emperor ofGermany, residing at Seeburg, in the Kingdom of Prussia, Germany, have invented Improvements in Direct-Acting Gas-Engines, of which the following is a specification.

This invention relates to improvements in gas-engines of the rotary class in which the motive parts are impelled. by a continuous supply of the actuating fluid or products of combustion.

The object of the invention is to provide a device of such construction that will accomplish a constant and even actuation of the turbine.

To this end the invention consists of a gasengine comprising twin explosion-cylinders, gas-supply pipes therefor, means for alternating the supply of gas to the cylinders, double receiving-chambers, separate communicating means between said cylinders and chambers, means for directing the product of combustion alternately in said communicating means, and a turbine to be actuated by the product of combustion, as will be more fully described hereinafter and .finally pointed out in the claim.

In the accompanying drawings, Figure 1 is a vertical longitudinal section of the engine on line A A, Fig. l. Figs. 2 and 3 are re spectively plan and side views of the device;-

and Fig. 4. is a vertical transverse section on line B B, Fig. 3.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, a a represent the twin explosion-cylinders that are arranged parallel to each other, inclosed at one end by the plate I), and each at the opposite end is provided with the shut-off valve 0, that is maintained in closed position by its own weight. The oil-supply pipe (1 is divided to communicate with the cylinders through the valves 6 e. Communication from the endsf of the cylinders to the chamber gis had when the valves 0 are open. The receiving-chambers 72 '5 are cylindrical and arranged concentrically, the latter within the former. The

receiving-chamber h communicates with the chamber g, while the receiving-chamber z communicates with the explosion-cylinders a a through the pipe q and the valves pp at the upper end of the pipe q, that branches laterally. Through the center of the receiving-chambers is arranged the power-shaft 76, upon which atone end in the exhaust-chamber the turbinelis mounted and at the opposite end the pulley 00, and around the shaft 717, within the cylinder t', is arranged the inclosing tube The receiving-chambers are separated from the exhaust-chamber n by the partition m. The partiti0nwall m is provided with the diametrical openings r,through which the products of combustion escape from the chamber '0' to act upon the turbine Z, while through the openings 0* the products of combustion escape from the receiving-chamber h to act upon the turbine, and after acting upon the turbine they escape from the exhaust-chamber at through the exhaust-pipe o.

The explosions of the gas in the twin cylinders take place alternately, and for this reason the valves 6 and e are actuated alternately. To accomplish this, a cam mechanism is provided at one side of the device, a separate cam for actuating each valve 6 e p These cams s s s s are mounted upon the shaft 4), that is actuated by means of the gear-wheels w of the train of gears that is actuated from the power-shaft k. Upon the cams rest the levers t, that are connected with the valves by the rods to. In the operation of the device the combustible gas or fluid is supplied to one of the combustionchambers, preferably a for the purpose of illustration, through the pipe d when the valve (2 is actuated by the cam .9 When a sufficient quantity of combustible fluid or gas has entered the combustion-chamber a, ignition takes place by means of the igniter y. Upon explosion the valve 0 is forced open and the expanding gas enters the receiving-chamber it through the chamber 9; but before the products of combustion are entirely exhausted from the explosion-chamher a combustible gas or fluid is fed to the combustionchamber a by the actuation of its valve and explosion takes place, the expansive force of which acts upon the valve 0 of the explosion-chamber a and closes the same. Upon the second explosion and the closing of the valve 0 of the chamber a the product of combustion confined in said cylinder escapes through the valve 10, actuated by the cam s, to be conveyed through the pipe q to the receiving-chamber 2'. In this manner by the alternate explosions in the explosion-chambers a a the products of combustion are conveyed to the receiving-chambers h 'i by the alternate closing and opening of the valve 0 and valves p 19. By this construction the products of combustionare conveyed directly through the chambers g and h to act upon the turbine Z and indirectly from the explosion-cylinders through the tube q and the chamber 1' to act upon the turbine Z, after which the products of combustion pass through the exhaust-chamber n and out of the exhaust pipe 0. The explosions are adapted to take place at frequent intervals and by the direct and indirect play of the products of combustion upon the turbine causes a continuous and rapid actuation thereof, so that high speed and power is attainable.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent- -In a rotary gas-engine, the combination of twin explosion-cylinders, a shut-off valve provided for each cylinder, separate receivingchambers, separate means communicating from said cylinders to said receiving-chambers, spring-actuated valves for controlling the supply of gas to said cylinders, springactuated valves for permitting the escape of a portion of the products of combustion to one of said receiving-chambers, a cam mechanism for actuating alternately said spring actuated valves, said shut-0E valves being opened and closed alternately by the explosion of the gas, a turbine, means for directingcontinuous supply of the products of combustion upon said turbine, and an exhaust,

substantially as set forth.

In witness whereof I have hereunto set my 45 hand in presence of two witnesses.

PAUL GERVAIS. Witnesses:

HENRY HASPER, WOLDEMAR HAUPT.