US537963A - Gas or similae motor engine - Google Patents

Description

(No Model.)

A. R. BELLAMY. GAS 0B. SIMILAR MOTOR ENGINE.

N0;"537,963. Patented Apr. 23, 1895.

lJNrrEn STATES PAT NT @rrrcn.

ALFRED ROWE BELLAMY, OF STOOKPORT, ENGLAND.

GAS OR SIMILAR MOTOR ENGINE.

SPECIFICATION forming part of Letters Patent NO. 537,963, dated April 23, 1 895.

Application filed. October 6,1894. Serial No. 525,099. (No model.) Patented in England March 22, 1893, No. 6,0?93i To all whom 05 may concern:

Be it known that I, ALFRED ROWE BEL- LAMY, a subject of the Queen of Great Britain, and a resident of. Stockport, Chester county, England, have invented certain new and useful Improvements in Gas or Similar Motor Engines, of which the following is a specification, the invention having been patented in England March 22, 1893, No. 6,093.

In self starting gas and similar motor engines as at present constructed, the first impulse is either obtained by firing a charge of gas and air atatmospheric pressure, or firing a charge of gas and air under compression. In the first instance the power obtained is insufficient to move the piston and revolve the crankshaft until the engine gets into its proper working action, especially if there be any resistance to its free movement, through the engine being arranged to drive direct on to its work. In the second instance when firing a charge under compression, the shock to the parts is too severe, it being well known that to put an engine into motion by instantaneously giving the piston a sudden shock is both inadvisable and unmechanical.

The object of this invention is to arrange the starting so that a mixture of air and gas at atmospheric pressure is first exploded while the piston is at rest. This pressure sets the engine moving and after the piston has traveled a certain distance a communication is elfected with another chamber containing a second charge of gas and air at atmospheric pressure which charge is compressed, and then fired by the first explosion and thereby a second and powerful impulse is given to the piston after it has been put into motion by the first explosion. To effect this object I employ a reservoir or chamber connected with the gas inlet and with the cylinder and placed at any suitable distance from the latter.

To render my invention clearly understood 1 have annexed hereto a drawing showing in elevation (partly in section) a gas or similar motorengine fitted with such an arrangement of reservoir for the purposes of my invention.

In the view a designates the cylinder; 1), the piston; c, the crank shaft; (1, the reservoir or chamber; e, a pipe connecting the reservoir d to the cylinder at; f, a tap or valve controlling the pipe e; g, the pipe which supplies gas or explosive fluid through a back pressure valve h to the compression space or chamber of the cylinder a, and simultaneously through a back pressure valve 1' to the reservoir d which is also provided with a suitable valve In to allow the products of combustion to escape.

Upon starting, gas is admitted through the pipe g to the compression space or chamber of the cylinder at and simultaneously to the reservoir d thereby simultaneously forming an explosive fluid mixture at or about atmospheric pressurein both places, the gas having driven before it a portion of the air or products from the compression space or chamber of the cylinder, preferably through the valve min communication with the ignition tube.

The first explosion is caused by the explosive fiuid mixture in the cylinder coming in contact with the heated. portion of the ignition tube. When the first explosion takes place the piston 19 is driven outward until it uncovers the port or pipe 6 communicating with the reservoir 61. The flame from the first explosion immediately ignites the explosive fluid mixture in the reservoir (1 thus giving a second or supplementary impulse to the piston b whereby additional power is obtained for starting and this without any sudden shock or jar. After the piston has reached the end of its outstroke the tap or valve f may be closed by hand or automatically if preferred, to shut off the reservoir (1 from the cylinder a.

The reservoir d is shown connected with the cylinder (1 at a point covered by the piston b when the explosive charge in the compression space or chamber is ignited; but itmay be connected by a port controlled by a separate valve if desired.

I declare that what I claim is- 1. In combination the cylinder, the piston, a reservoir and a fuel supply connecting with both the reservoir and the explosion chamber of the cylinder to supply the mixture thereto at atmospheric pressure when the piston is at rest at the rear of its stroke, said reservoir being connected to the cylinder at such point as to secure a second explosion only when the piston has advanced in its forward stroke, substantially as described.

2. In combination, the cylinder, the piston,

the reservoir, the fuel supply leading to the explosion chamber and the reservoir, the connection between the reservoir and the cylinder, and the 'valve in said connection to out off the reservoir from the cylinder, said connection being arranged to be closed by the piston when at the rear of its stroke substantially as described.

3. In combination, the cylinder, the piston, the reservoir, the supply pipe g, connected I with the explosion chamber and reservoir, the back pressure valves 71 and t in said connection, the exhaust valve 7t leading from the reservoir, and the connection between the reservoir and the cylinder, said connection being arranged to be closed by the piston when at the rear of its stroke substantially as described.

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

ALFRED ROWE BELLAMY.

\Vitnesses:

DAVID FULTON, RICHARD IBBEnsoN.

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