Patent ID: 6224347
Filing Date: 2001-05-01
Classification: F04B

Abstract:
A fluid pump comprising a rotating cylinder, a flat face plate associated with said cylinder, a piston capable of reciprocating in said cylinder, a flat seal plate positioned adjacent to said face plate, a fluid intake port in said seal plate, an intake groove in said seal plate communicating with said intake port, a fluid discharge port in said seal plate, a discharge groove in said seal plate communicating with said discharge port, and means to maintain said face plate against said seal plate to provide the only seal around said grooves and said ports, said grooves and said ports communicating with said cylinder such that upon rotation of said cylinder relative to said seal plate and upon reciprocation of said piston, said piston sequentially draws fluid from said intake groove and said intake port into said cylinder and then discharges that fluid from said cylinder into said discharge groove and through said discharge port.