Pumps – Motor driven – Resiliently mounted pump or motor
Patent
1977-12-12
1980-01-01
Croyle, Carlton R.
Pumps
Motor driven
Resiliently mounted pump or motor
310 91, 417410, 418154, F04B 1700
Patent
active
041814720
ABSTRACT:
A liquid dispensing pump of the motor-driven flexible vane impeller type suitable for use in an automobile windshield washer system includes a housing that defines a motor chamber having a motor supporting end wall. A closure wall is fixed to the end wall and an impeller chamber having a peripheral surface is defined between the walls. An impeller is rotatable in the impeller chamber by a motor supported in the motor chamber, which has a shaft that extends through an opening in the end housing wall. Inlet and outlet passages respectively conduct liquid to and from the impeller chamber. This pump further comprises the improvement that the impeller chamber is constituted by confronting recesses, formed in the closure and end walls, that are circumferentially bounded by portions of the walls that have confronting surfaces meeting at a tight interface. The interface bounds the peripheral impeller chamber surface. In addition, the motor chamber is closed by a cover plate fastened to an end of the housing opposite the end wall. A spring is compressed between the cover plate and motor body to hold the motor body non-rotatably in working position against the end wall.
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Clayton Ronald A.
Croyle Carlton R.
Johnston Albert C.
Look Edward
Parker-Hannifin Corporation
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