发明公开
- 专利标题： CONTROL OF SUPPLY OF AIR TO A PNEUMATIC VALVE ACTUATOR
- 专利标题（中）： 空气对气动阀门执行机构的供气控制
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申请号： EP16172786.2申请日： 2016-06-03
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公开(公告)号： EP3252360A1公开(公告)日： 2017-12-06
- 发明人: REHHOFF, Kenneth , ANDERSEN, Jens Folkmar
- 申请人： Alfa Laval Corporate AB
- 申请人地址： Box 73 221 00 Lund SE
- 专利权人： Alfa Laval Corporate AB
- 当前专利权人： Alfa Laval Corporate AB
- 当前专利权人地址： Box 73 221 00 Lund SE
- 代理机构： Alfa Laval Attorneys
- 主分类号： F16K31/122
- IPC分类号： F16K31/122
摘要：
A technology is disclosed for controlling the function of a pneumatic valve actuator (14). The piston (22) of the valve actuator (14) is biased to be in first state (44) and move to a second state (46) when pressurized. A conduit (28) connects the pressure side (24) and non-pressure sides (26) of the valve actuator (14) for supplying the non-pressure side (26) of the valve actuator (14) with gas from the pressure side (24) of the valve actuator (14). A control valve (30) is connected to the conduit (28) for controlling a release of gas from the pressure side (24) of the valve actuator (14). The valve controller (14) also has pressure-relief valve (32) connected to the conduit (28) between the control valve (30) and the non-pressure side (26) of the valve actuator (14) for reducing the pressure in the conduit (28).
公开/授权文献
- EP3252360B1 CONTROL OF SUPPLY OF AIR TO A PNEUMATIC VALVE ACTUATOR 公开/授权日：2018-12-12
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