Pumps – With condition responsive pumped fluid control – Expansible chamber pump distributor operation modified
Patent
1993-08-10
1996-07-30
Bertsch, Richard A.
Pumps
With condition responsive pumped fluid control
Expansible chamber pump distributor operation modified
277901, 277180, 417300, F04B 4900
Patent
active
055405665
ABSTRACT:
A pump comprising a pump body having a control valve for controlling working fluid flow from the pump body to an actuator through a joint. The joint is connected mechanically to the pump body through a washer made of a material different from that of the pump body. The washer has a side surface held in contact with the pump body at a galvanic junction. The pump also includes an annular seal member provided to keep the junction from exposure to the environment.
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Hamao Miyoko
Ishizaki Kazuyoshi
Ishizuka Atsushi
Ohya Shouji
Yamamuro Masateru
Bertsch Richard A.
Kim Ted
Unista Jecs Corporation
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