Pump impeller improvement

Details Pump impeller improvement Pump impeller improvement

1974-11-13

1977-12-20

Schwadron, Martin P.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

415170A, 308163, F04D 2944, F04D 1308

Patent

active

040638464

ABSTRACT:
To retain thrust washers and to prevent them from spinning or rotating at speeds less than the pump impeller with which they are associated, the thrust washers are slotted or split. The slotted or split washers expand due to centrifugal force and due to the difference in velocity across the face of the washer when the impeller spins; expansion of the thrust washer causes a braking force against the retaining ring on the impeller, so that the washer rotates with and at the same speed as the impeller.

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patent: 3730641 (1973-05-01), Gordon
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