发明名称 |
PRESSURE LOADED SERVICE REGULATOR WITH PRESSURE BALANCED TRIM |
摘要 |
A gas regulator includes an actuator, a regulator valve, and pressure loading device. The pressure loading device provides a pressure load to a surface of a diaphragm of the actuator to act against a downstream pressure being applied to the opposite surface of the diaphragm and being controlled by the regulator. As the downstream pressure varies and the diaphragm displaces to move a control element to regulate the downstream pressure, the pressure loading device maintains a specified load pressure. The regulator may further include a balanced trim applying a balancing force to offset a force of an upstream pressure on the control element. |
申请公布号 |
CA2722036(A1) |
申请公布日期 |
2009.10.29 |
申请号 |
CA20092722036 |
申请日期 |
2009.04.21 |
申请人 |
EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC. |
发明人 |
HAWKINS, JAMES CHESTER;ANDERSON, PAUL RICHARD;MEVIUS, JASON S.;FOUST, GREGORY LAWRENCE |
分类号 |
G05D16/16;G05D16/06 |
主分类号 |
G05D16/16 |
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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