Pumps – Motor driven – Fluid motor
Patent
1995-04-12
1996-05-28
Korytnyk, Peter
Pumps
Motor driven
Fluid motor
417395, F04B 43067
Patent
active
055205232
ABSTRACT:
A diaphragm-type pump includes a disk-like diaphragm made of an elastic material which is held between an upper housing and a lower housing. In this diaphragm-type pump, the diaphragm, which has a flat shape before it is mounted in the pump, is bent along a diaphragm stopper and mounted in the pump. Consequently, an urging force is constantly applied to the diaphragm in such a direction as to press it on the diaphragm stopper. The diaphragm is deformed in response to reciprocation of a plunger, and when the plunger reaches the bottom dead center and a cylinder chamber is decreased in pressure, the diaphragm is pressed on the diaphragm stopper by the urging force toward the diaphragm stopper and a feed pressure of a feed pump.
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Ohtsuka Kou
Shibata Akira
Watanabe Kazuhide
Yorita Hiroshi
Korytnyk Peter
Nippon Soken Inc.
Nippondenso Co. Ltd.
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