Patent ID: 6499962
Filing Date: 2002-12-31
Classification: F04B

Abstract:
A high pressure cleaning appliance including a reciprocating pump driven by a motor, wherein:said pump comprises pistons that rest resiliently on a swash plate driven by the motor; said motor has a shaft rotatably mounted at first and second ends thereof; the first end of said shaft is fixedly mounted to the swash plate and is supported by a rolling contact bearing having concentric outer and inner bearing rings, said outer bearing ring being supported in an end plate of the motor and the inner bearing ring supporting the motor shaft; the motor shaft is free to move axially and rotationally within the inner bearing ring; and said pistons bear against said swash plate with a force sufficient to press the swash plate into a friction-fit with the inner bearing ring, thereby positioning and maintaining the motor shaft in an operational state within the motor.