发明申请
- 专利标题: Control valve for variable displacement compressor
- 专利标题(中): 变排量压缩机控制阀
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申请号: US11324234申请日: 2006-01-04
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公开(公告)号: US20060150649A1公开(公告)日: 2006-07-13
- 发明人: Hisatoshi Hirota
- 申请人: Hisatoshi Hirota
- 申请人地址: JP Tokyo
- 专利权人: TGK CO., LTD
- 当前专利权人: TGK CO., LTD
- 当前专利权人地址: JP Tokyo
- 优先权: JP2005-004871 20050112
- 主分类号: F25B41/00
- IPC分类号: F25B41/00
摘要:
To provide a control valve for a variable displacement compressor, which is capable of stably operating in a pressure control area, and causing the compressor to quickly shift to operation with the minimum displacement. The control valve for a variable displacement compressor is capable of realizing stable pressure control, since a force applied to a valve element in a valve-closing direction increases when the valve element is in a pressure control area, and is balanced with a force applied to the valve element in a valve-opening direction by the pressure of refrigerant. Further, when the valve element moves past an end point of the pressure control area, the force applied to the valve element in the valve-closing direction decreases to thereby increase the valve-opening degree of a valve portion when the valve portion is fully open. Therefore, when a solenoid is not energized, it is possible to ensure a sufficient flow rate of refrigerant, thereby making it possible to cause the compressor to quickly shift to operation with the minimum displacement.
公开/授权文献
- US07437881B2 Control valve for variable displacement compressor 公开/授权日:2008-10-21