发明名称 |
POSITIONER |
摘要 |
The present invention relates to an electro-pneumatic positioner for use with a pneumatically controlled two-chamber actuator comprising a first valve unit comprising a first air supply valve and a first air outlet valve connected to a conduit, which in turn is connected to a chamber of the actuator, a second valve unit comprising a second air supply valve and a second air outlet valve connected to a conduit, which in turn is connected to a second chamber of the actuator; a first control device acting on the first air supply valve, which first control device comprises a first control valve; a second control device acting on the said second air supply valve, which second control device comprises a second control valve.
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申请公布号 |
CA2387402(C) |
申请公布日期 |
2011.08.23 |
申请号 |
CA20002387402 |
申请日期 |
2000.10.12 |
申请人 |
PALMSTIERNAS INSTRUMENT AB |
发明人 |
HOLM, STAFFAN;ERIKSSON, MIKAEL;HOLMBERG, JOHAN |
分类号 |
G05D3/12;F15B13/042;F15B13/043;F15B21/08 |
主分类号 |
G05D3/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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