(19)
(11) EP 0 854 286 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.04.1999 Bulletin 1999/14

(43) Date of publication A2:
22.07.1998 Bulletin 1998/30

(21) Application number: 98300233.8

(22) Date of filing: 14.01.1998
(51) International Patent Classification (IPC)6: F04B 27/08
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 17.01.1997 JP 19737/97

(71) Applicant: ZEXEL CORPORATION
Tokyo (JP)

(72) Inventor:
  • Arai, Katsuhiko, c/o Zexel Corporation
    Kounan-machi, Oosato-gun, Saitama-ken (JP)

(74) Representative: Britter, Keith Palmer 
Britter & Co. Barn West, The Dixies, High Street, Ashwell
Baldock Hertfordshire SG7 5NT
Baldock Hertfordshire SG7 5NT (GB)

   


(54) Swash plate compressor


(57) A swash plate (10) of a swash plate compressor has opposite sliding surfaces (10a, 10c) and is rotatable as a drive shaft (5) rotates. Each of a plurality of pistons (7) is connected to the swash plate (10) via a pair of shoes (50) arranged to perform relative rotation on respective opposite sliding surfaces (10a, 10c) of the swash plate (10) with respect thereto, and is reciprocable within a corresponding one of a plurality of cylinder bores (6) formed through a cylinder block (1), as the swash plate (10) rotates. Each of the opposite sliding surfaces (10a, 10c) of the swash plate (10) is coated with a surface-treatment coating having a thickness which is set in a manner such that when the swash plate (10) has been assembled with each piston (7) via the pair of shoes (50), pressure is applied from the pair of shoes (50) on the sliding surfaces (10a, 10c) of the swash plate (10), and when initial abrasion of the surface-treatment coating has been completed, the base material of the swash plate (10) is not exposed.






Search report