Internal-combustion engines – Valve – Valve head cooperates with manifold
Patent
1988-12-15
1989-12-26
Cross, E. Rollins
Internal-combustion engines
Valve
Valve head cooperates with manifold
123193P, 123 79R, F01L 300
Patent
active
048890880
ABSTRACT:
A fluid control apparatus and method for a positive displacement engine or compressor which has a treatment chamber that communicates with a fluid admission duct and an exhaust duct via a port, and contains a piston within the treatment chamber which reciprocates between a top dead center and a bottom dead center position. The piston carries a poppet valve sealing member which is activated to provide substantially perfect sealing between the port and the treatment chamber when the piston is in the immediate vicinity of top dead center position, and is deactivated when the piston is in a position other than the immediate vicinity of the top dead center position in order to allow fluid to pass freely through the port.
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Cross E. Rollins
Pradom Limited
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