Cylinder head with pressure regulator valve

Details Cylinder head with pressure regulator valve Cylinder head with pressure regulator valve

F - Mech Eng,Light,Heat,Weapons

04

B

230/84

F04B 49/02 (2006.01) F04B 39/10 (2006.01) F04B 49/22 (2006.01)

Patent

CA 1258838

CYLINDER HEAD WITH PRESSURE REGULATOR VALVE Abstract of the Disclosure A cylinder head assembly for a boost pump of the type having a reciprocating piston pumping gas from an inlet chamber in the cylinder head to a discharge chamber in the cylinder head, the cylinder head assembly further including a flexible diaphragm dividing a cavity of the cylinder head into an inlet control chamber and a feedback chamber, a valve element on the diaphragm operative to throttle air flow through an inlet passage between the inlet control chamber and the inlet chamber, a spring in the inlet control chamber biasing the diaphragm away from the inlet passage, and conduits or passages for conducting inlet air at the above-ambient inlet pressure to the inlet control chamber and air at boost pump discharge pressure to the feedback chamber so that boost pump discharge pressure increases until the latter exceeds the inlet pressure by an amount proportional to the force of the spring.

502972

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