发明名称 |
Refrigerant expansion valve having electrically operated inlet shutoff with improved armature dampening |
摘要 |
A combination refrigerant expansion valve adapted for operation by a thermally responsive element, and a solenoid actuated, preferably pilot operated inlet shutoff valve. The solenoid has a resilient elastomeric stop-ring for cushioning deceleration and limiting travel of the armature to prevent closing of the working air gap between the armature and a pole piece. The armature also has a cross port therethrough to alleviate flow-induced pressure decrease on the distal end of the armature from causing the armature to stick in the actuated position when the coil is de-energized.
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申请公布号 |
US6530528(B2) |
申请公布日期 |
2003.03.11 |
申请号 |
US20010918424 |
申请日期 |
2001.07.27 |
申请人 |
PARKER-HANNIFIN CORPORATION |
发明人 |
BREYER WILLIAM L.;BLOEDEL PATRICK A. |
分类号 |
F16K31/40;F25B41/04;F25B41/06;G05D16/20;(IPC1-7):F25B41/04 |
主分类号 |
F16K31/40 |
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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