发明授权
- 专利标题： Flow control valve with enhanced flow control piston
- 专利标题（中）： 流量控制阀具有增强的流量控制活塞
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申请号： US143308申请日： 1993-10-26
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公开(公告)号： US5383489A公开(公告)日： 1995-01-24
- 发明人: Farhad Golestan , John M. Trantham
- 申请人： Farhad Golestan , John M. Trantham
- 申请人地址： TX Dallas
- 专利权人： Flow Design, Inc.
- 当前专利权人： Flow Design, Inc.
- 当前专利权人地址： TX Dallas
- 主分类号： G05D7/01
- IPC分类号： G05D7/01
摘要：
A flow control valve (10) is provided including a valve body (20) and a piston (16). The valve body (20) has extending therethrough a longitudinal bore (18) defining a first flow passage (32). The piston (16) is slidably disposed within the bore (18) to vary the flow area of a fluid flow through the control valve (10). The piston (16) contains a second flow passage (28) defined by a side wall (68) and an end wall (70). The side wall (68) has at least one longitudinal flow channel (24) with a first orifice (26) extending therethrough. The piston (16) preferably slides within the longitudinal bore (18) to vary the flow area of the first flow passage (32) such that the fluid flow through the control valve (10) is substantially constant over a selected range of pressure differentials across the control valve (10).
公开/授权文献
- US4788683A Data processing system emulation with microprocessor in place 公开/授权日：1988-11-29
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