My invention relates to the class of gas-engines which are operated by what is known as a four-stroke cycle that is to say, when the charge is exploded the piston makes its out-stroke, then returns and expels the products of combustion, then makes a second out-stroke, drawing in the charge, and then on the next in-stroke compressing said charge.
The object of my invention is in the main to improve the means for admitting the gas and air forming the explosive charge and for igniting the same.
1. A gas-engine having an elongated rotating tubular valve aligned axially the cylinder and always open thereto at its forward end, said valve being provided with a single port in its side, and a valve-casing having air and gas inlets, an exhaust-outlet, and an igniting-aperture, said port in the valve being brought successively to the receiving-ports, the igniting-point, and the exhaust-outlet, as set forth.
2. In a gas-engine, the combination, with the cylinder, the piston, and the valve-casing I, secured to the cylinder and provided with air-inlets, a gas-inlet, an exhaust outlet, and an aperture to receive the igniting-tube, of the said igniting-tube and the elongated tubular rotating valve J mounted in said casing and provided with a single port 6, the air and gas inlets being arranged in line, whereby they open to the valve-port simultaneously, as set forth.
3. In a gas-engine, the combination, with the cylinder, the piston, and the valve-casing secured to the cylinder and aligned axially therewith, said casing having in it an exhaust outlet, an aperture for the reception of the igniting, one at each side of the gas-inlet, of the igniting tube, a gas-inlet g, and two air-inlets, f f, one at each end of the gas-inlet, of the igniting tube and the rotating valve mounted in said casing and provided with a port e, substantially as set forth.
4. In a gas-engine, the combination, with a cylinder and piston, of the valve-casing I, provided with gas and air inlets, an exhaust-outlet, an aperture to ,receive the igniting-tube, and a recess i', connecting with the latter aperture, the igniting-tube, and the valve J, mounted in said casing and having a port e, substantially as set forth.
5. In a gas-engine, the combination, with the valve-casing provided with an exhaust-outlet, of a rotating cylindrical valve mounted in said casing and provided with a port e, adapted to open the said recess to the exhaust-outlet as set forth.