发明申请
US20030019225A1 REFRIGERANT EXPANSION VALVE HAVING ELECTRICALLY OPERATED INLET SHUTOFF WITH IMPROVED ARMATURE DAMPENING 有权
具有改进的防摔功能的电动开关阀的制冷剂膨胀阀

  • 专利标题: REFRIGERANT EXPANSION VALVE HAVING ELECTRICALLY OPERATED INLET SHUTOFF WITH IMPROVED ARMATURE DAMPENING
  • 专利标题(中): 具有改进的防摔功能的电动开关阀的制冷剂膨胀阀
  • 申请号: US09918424
    申请日: 2001-07-27
  • 公开(公告)号: US20030019225A1
    公开(公告)日: 2003-01-30
  • 发明人: William L. BreyerPatrick A. Bloedel
  • 申请人: EATON CORPORATION
  • 申请人地址: US OH Cleveland
  • 专利权人: EATON CORPORATION
  • 当前专利权人: EATON CORPORATION
  • 当前专利权人地址: US OH Cleveland
  • 主分类号: F25B041/04
  • IPC分类号: F25B041/04 F25B041/06
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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