(19)
(11) EP 0 513 871 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.08.1993 Bulletin 1993/32

(43) Date of publication A2:
19.11.1992 Bulletin 1992/47

(21) Application number: 92113693.3

(22) Date of filing: 01.09.1987
(51) International Patent Classification (IPC)5: F04B 1/28, F04B 27/08
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 02.09.1986 JP 206229/86
18.12.1986 JP 302296/86
19.06.1987 JP 154139/87

(62) Application number of the earlier application in accordance with Art. 76 EPC:
87112734.6 / 0259760

(71) Applicant: NIPPONDENSO CO., LTD.
Kariya-city Aichi-pref., 448 (JP)

(72) Inventors:
  • Iwanami, Shigeki
    Nishio-shi (JP)
  • Inagaki, Mitsuo
    Okazaki-shi (JP)
  • Sasaya, Hideaki
    Okazaki-shi (JP)
  • Tanaka, Taro
    Showa-ku, Nagoya (JP)
  • Kojima, Akikazu
    Gamagori-shi (JP)

(74) Representative: Klingseisen, Franz, Dipl.-Ing. et al
Patentanwälte, Dr. F. Zumstein, Dipl.-Ing. F. Klingseisen, Bräuhausstrasse 4
D-80331 München
D-80331 München (DE)


(56) References cited: : 
   
     
    Remarks:
    This application was filed on 11 - 08 - 1992 as a divisional application to the application mentioned under INID code 60.
     


    (54) Variable displacement swash-plate type compressor


    (57) A variable displacement swash-plate type compressor suitable for use as a refrigerant compressor of an automotive air conditioner has a cylinder block (5,6) having a plurality of cylinder bores (50) each slidably receiving a double-headed piston (7), a shaft (1) driven by an automotive engine, a swash plate (10) tiltably mounted on the shaft for rotation therewith to reciprocatorily move the pistons, and a spool (30) for moving the swash plate axially of the shaft and changing the angle of tilt of the swash plate. The swash plate and the shaft are connected in such a manner that, when the swash plate is axially moved while changing its tilting angle, the position of stroke end of each piston is changed only in a working chamber on one end of the piston, whereas no change in the position of the stroke end occurs in the other working chamber on the other end of the piston.






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