Direction-selectable sending-out pump

Details Direction-selectable sending-out pump Direction-selectable sending-out pump

1987-04-21

1988-03-01

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

137119, 417442, F01D 130

Patent

active

047282606

ABSTRACT:
An impeller driven by a reversible motor is set in a housing and a functional path capable of sending out liquid by pump action is formed between the inner wall of the housing and the impeller. On the both-end side of the functional path are provided two adjacent valve chambers divided by a partition, and within this partition is provided a liuqid introducing path leading to the valve chambers via inlets. On the wall of the valve chamber facing the inlet is opened an outlet, and a valve body which opens and closes the inlets and outlets is set. The liquid introducing path, one valve chamber, the functional path, and the other valve chamber are arranged in series, so that, while one valve chamber is positive in pressure, the other chamber does not fail to be negative in pressure. Thus, liquid is sent out exactly to the outlet on the positive pressure side, without being erroneously set to the other outlet on the negative pressure side.

REFERENCES:
patent: 2205902 (1940-06-01), McMahan
patent: 2864312 (1958-12-01), Shelton et al.
patent: 2883843 (1959-04-01), Bochan
patent: 3857461 (1974-12-01), Schmitt
patent: 3886288 (1974-09-01), Evans
patent: 4331295 (1982-05-01), Warihashi
patent: 4679983 (1987-07-01), Pietryk et al.

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