发明授权
- 专利标题： Positive displacement type liquid-delivery apparatus
- 专利标题（中）： 正排量型送液装置
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申请号： US09627779申请日： 2000-07-28
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公开(公告)号： US06419462B1公开(公告)日： 2002-07-16
- 发明人: Kuniaki Horie , Yukio Fukunaga , Akihisa Hongo , Kiwamu Tsukamoto , Kenji Kamoda , Hirotake Yamagishi , Shinya Uemura
- 申请人： Kuniaki Horie , Yukio Fukunaga , Akihisa Hongo , Kiwamu Tsukamoto , Kenji Kamoda , Hirotake Yamagishi , Shinya Uemura
- 优先权： JP9-55506 19970224; JP11-343399 19991202
- 主分类号： F04B4310
- IPC分类号： F04B4310
摘要：
A positive displacement liquid-delivery apparatus includes a positive displacement pump 110 and a differential pressure control unit 142. The positive displacement pump 110 includes a liquid-delivery chamber 128 having a watertight housing 122 with one part formed of a flexible diaphragm 124, and a diaphragm driver 136 linked to the diaphragm 124 for deforming the same to discharge fluid from the liquid-delivery chamber 128. The differential pressure control unit 142 uniformly controls the differential pressure inside and outside the diaphragm 124 during the pumping process.
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