- 专利标题： Parallel divided flow-type fluid supply apparatus, and fluid-switchable pressure-type flow control method and fluid-switchable pressure-type flow control system for the same fluid supply apparatus
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申请号： US09734640申请日： 2000-12-13
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公开(公告)号： US06422264B1公开(公告)日： 2002-07-23
- 发明人: Tadahiro Ohmi , Satoshi Kagatsume , Kazuhiko Sugiyama , Yukio Minami , Kouji Nishino , Ryousuke Dohi , Katsunori Yonehana , Nobukazu Ikeda , Michio Yamaji , Jun Hirose , Kazuo Fukazawa , Hiroshi Koizumi , Hideki Nagaoka , Akihiro Morimoto , Tomio Uno , Eiji Ideta , Atsushi Matsumoto , Toyomi Uenoyama , Takashi Hirose
- 申请人： Tadahiro Ohmi , Satoshi Kagatsume , Kazuhiko Sugiyama , Yukio Minami , Kouji Nishino , Ryousuke Dohi , Katsunori Yonehana , Nobukazu Ikeda , Michio Yamaji , Jun Hirose , Kazuo Fukazawa , Hiroshi Koizumi , Hideki Nagaoka , Akihiro Morimoto , Tomio Uno , Eiji Ideta , Atsushi Matsumoto , Toyomi Uenoyama , Takashi Hirose
- 优先权： JP11-108689 19990416; JP11-129109 19990510
- 主分类号： G05D706
- IPC分类号： G05D706
摘要：
A fluid supply apparatus with a plurality of flow lines branching out from one pressure regulator with the flow lines arranged in parallel and constructed so that opening or closing one flow passage will have no transient effect on the steady flow of the other flow passages. Each flow passage is provided with a time delay-type mass flow controller MFC so that when one closed fluid passage is opened, the mass flow controller on that flow passage reaches a set flow rate Qs in a specific delay time &Dgr;t from the starting point. The invention includes a method and an apparatus in which a plurality of gas types can be controlled in flow rate with high precision by one pressure-type flow control system.