Power plants – Pressure fluid source and motor – Cyclically operable reciprocating or oscillating motor or...
Patent
1985-01-15
1986-09-30
Husar, Stephen F.
Power plants
Pressure fluid source and motor
Cyclically operable reciprocating or oscillating motor or...
60407, F16D 3102
Patent
active
046140859
ABSTRACT:
A piston of a gas engine is reciprocatingly guided in a cylinder. A gas inlet valve whose valve closure component consists of a ball is situated in the cylinder head. The ball is pushed open in the top dead-center position of the piston by a protrusion formed on the upper portion of the piston in order to admit propellant gas into an expansion chamber formed by the cylinder. The gas engine must be set into operation by turning a crankshaft. If the piston accidentally lies near top dead-center when starting, the piston must be moved against full gas pressure. In order to alleviate starting, a shut-off device is provided which has a start position and an operational position. The shut-off device connects the inlet side of the gas inlet valve with an air conduit opening into ambient air and obturates a pressurized gas container in the start position. The shut-off device obturates the air conduit and clears a gas supply conduit leading from the pressurized gas container to the inlet side of the gas inlet valve in the operational position. With the help of this shut-off device, it is possible to start even gas motors equipped with gear-reduction transmissions.
REFERENCES:
patent: 1189067 (1916-06-01), Davenport
patent: 4166441 (1979-09-01), Grigsby
patent: 4211083 (1980-07-01), Ueno
Husar Stephen F.
Kleeman Werner W.
Pewa Technic AG
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