发明名称 |
Modulating control valve |
摘要 |
A flapper-poppet (new) that differs from a flapper-nozzle (old) in that the flapper-nozzle is a second stage operator that employs an amplifier which operates on de-amplified pressure. Although both the flapper-poppet and the flapper-nozzle are controlled by a conventional torque motor, the flapper-poppet is a first stage operator which operates on high supply pressure.
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申请公布号 |
US4527772(A) |
申请公布日期 |
1985.07.09 |
申请号 |
US19820443361 |
申请日期 |
1982.11.22 |
申请人 |
INTERNATIONAL TELEPHONE & TELEGRAPH CORP. |
发明人 |
KEBEDE, BERHANU;GEORGE, MARION L. |
分类号 |
F16K31/06;F16K31/10;(IPC1-7):F16K31/10 |
主分类号 |
F16K31/06 |
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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