Invention Grant
US07726949B2 Variable displacement compressor 有权
可变排量压缩机

  • Patent Title: Variable displacement compressor
  • Patent Title (中): 可变排量压缩机
  • Application No.: US10510342
    Application Date: 2003-04-08
  • Publication No.: US07726949B2
    Publication Date: 2010-06-01
  • Inventor: Yukihiko Taguchi
  • Applicant: Yukihiko Taguchi
  • Applicant Address: JP Isesaki-shi, Gunma
  • Assignee: Sanden Corporation
  • Current Assignee: Sanden Corporation
  • Current Assignee Address: JP Isesaki-shi, Gunma
  • Agency: Baker Botts, LLP.
  • Priority: JP2002-106461 20020409
  • International Application: PCT/JP03/04441 WO 20030408
  • International Announcement: WO03/085260 WO 20031016
  • Main IPC: F04B1/26
  • IPC: F04B1/26
Variable displacement compressor
Abstract:
A variable displacement compressor capable of controlling a piston stroke by openably controlling a displacement control valve to regulate a pressure in a crank chamber, comprising the displacement control valve disposed in a passageway from a discharge chamber to the crank chamber, and a fixed orifice provided in a passageway from the crank chamber to a suction chamber, the displacement control valve further comprising a pressure sensing member for the pressure in the suction chamber or the crank chamber, a valve element having a valve part opened and closed in response to the operation of the pressure sensing member, a valve chamber for disposing the valve part therein and allowing the pressure in the crank chamber to act therein, a partition wall disposed around the valve element, a pressure chamber partitioned from the valve chamber by the partition wall and allowing the pressure in the suction chamber to act therein, and a solenoid provided to the other end of the valve element, wherein a flow passage of non-contact structure is formed in the partition wall, and the number of sliding parts is reduced to lower a sliding resistance.
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