(19)
(11) EP 1 890 036 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.04.2009 Bulletin 2009/16

(43) Date of publication A2:
20.02.2008 Bulletin 2008/08

(21) Application number: 07114092.5

(22) Date of filing: 09.08.2007
(51) International Patent Classification (IPC): 
F04B 27/14(2006.01)
 F04B 27/18(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 10.08.2006 JP 2006217622

(71) Applicant: Kabushiki Kaisha Toyota Jidoshokki
Kariya-shi, Aichi 448-8671 (JP)

(72) Inventors:
  • Yokomachi, Naoya
    Kariya-shi Aichi 448-8671 (JP)
  • Suzuki, Junya
    Kariya-shi Aichi 448-8671 (JP)
  • Okuda, Motoaki
    Kariya-shi Aichi 448-8671 (JP)
  • Ueda, Hiromi
    Kariya-shi Aichi 448-8671 (JP)

(74) Representative: TBK-Patent 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) Displacement control valve for variable displacement compressor


(57) A displacement control valve for a variable displacement compressor has a control passage, a valve hole formed in the control passage, a first shaft portion having a valve body, and a connecting portion connected to the end portion of the valve body. The control passage is connected to a crank chamber for controlling the pressure in the crank chamber for adjusting the discharge displacement of the compressor. The valve body is formed at an end portion of the first shaft portion to open and close the valve hole. The connecting portion connected.to the end portion of the valve body is disposed into the valve hole, and a circumferential surface of the connecting portion has a curved surface so as to be flared out at an end of the connecting portion.







Search report