US Patent: 743,915
|
| Valve Gear For Explosive Engines
|
|
Patentee:
|
|
| Walter J. McVicker (exact or similar names) - Rogers, Colfax County, NE |
|
|
Patent Dates:
|
| Applied: |
Sep. 22, 1902 |
| Granted: |
Nov. 10, 1903 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for Alma Manufacturing Co.
"Vintage Machinery" entry for Canadian McVicker Engine Co., Ltd.
|
|
Description: |
| Abstract:
This invention relates to improvements in gas or gasolene engines of the four-stroke cycle-compression type, the object being to provide a simple means for operating the exhaust-valve by the explosion of gas or gasolene vapor in an auxiliary cylinder containing a movable piston, thus dispensing with all gears, cams, eccentrics, &c., and further to provide a means by which the speed of the engine may he exclusively controlled by electricity.
Claims:
l. In an explosive-engine, a main cylinder having inlet and outlet ports, a main piston operating therein, an auxiliary cylinder having port communication with the main cylinder, a piston operating in the auxiliary cylinder, the said piston having an annular port, and ports leading therefrom to the rear of the piston, and a valve for the exhaust having loose connection with the piston in the auxiliary cylinder and operated by the explosion of gas or vapor mixture in said auxiliary cylinder, while one of the ports is closed by the piston in the main cylinder.
2. In a gas-engine, a main cylinder, a main piston operating therein, an inlet-chamber and exhaust-chamber, the said chambers being in port communication with the main cylinder, valves for said chambers, an auxiliary cylinder having two ports communicating with the main cylinder, one rearward of the other, a piston operating in said auxiliary cylinder and having ports in connection with the ports leading to the main cylinder while the main piston is in forward position, and the said main piston operating to cut off the communication when in rearward position, and a stem extended from the exhaust-valve and having loose connection with the piston in the auxiliary cylinder.
3. Ina gas-engine, a main cylinder, a main piston operating therein, an inlet-chamber and exhaust-chamber, the said chambers communicating with the main cylinder, an inlet controlling valve, a spring for holding said valve to its seat, an exhaust-valve, an auxiliary cylinder having two ports communicating with the main cylinder and adapted to be cut off by the main piston, a piston operating in the auxiliary cylinder and having ports normally communicating with the first named ports, a spring engaging with said piston and having a less resistance than the spring of the inlet-controlling valve, a stem extended from the exhaust-valve and having loose connection with the piston of the auxiliary cylinder, and a spring for holding said exhaust-valve to its seat.
|
|
