Reciprocating engines

Details Reciprocating engines Reciprocating engines

1977-10-31

1981-08-18

Maslousky, Paul E.

Motors: expansible chamber type

Working member position responsive motive fluid control

Working member controls relatively movable inlet valve

91325, 91341R, F01L 2102, F01L 2300

Patent

active

042839955

ABSTRACT:
In a hydrazine powered engine, an intake valve arrangement for positively controlling the opening and closing of the poppet valve in a hot gas cylinder, the poppet valve being operated by the piston and gas pressure only. The poppet valve uses a pneumatic "spring" which holds the poppet valve against the piston while the valve is opened and closed. To accomplish this, a poppet valve is slidably mounted in a "pneumatic spring" chamber which reaches a pressure approaching the gas supply pressure and, during the opening of the valve, the "spring" chamber retains enough pressure to hold the poppet valve onto the piston. In addition, the bottom of the poppet valve can have a suction cup type configuration to hold the poppet valve on the piston during the down stroke.

REFERENCES:
patent: 734533 (1903-07-01), Fouts
patent: 1003953 (1911-09-01), Simons
patent: 1203018 (1916-10-01), Larson
patent: 1409309 (1922-03-01), Nordberg
patent: 2402699 (1946-06-01), Williams
patent: 2588478 (1952-03-01), Brown
patent: 3703848 (1972-11-01), Brown
patent: 4168655 (1979-09-01), Kitrilabis et al.

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