(19)
(11) EP 1 384 887 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.07.2004 Bulletin 2004/30

(43) Date of publication A2:
28.01.2004 Bulletin 2004/05

(21) Application number: 03024463.6

(22) Date of filing: 08.05.1996
(51) International Patent Classification (IPC)7: F04B 27/08, F04B 27/10
(84) Designated Contracting States:
DE FR IT

(62) Application number of the earlier application in accordance with Art. 76 EPC:
96913701.7 / 0838590

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

(72) Inventors:
  • Kato, Masafumi
    Kariya-shi Aichi-ken (JP)
  • Ito, Akichika
    Kariya-shi Aichi-ken (JP)

(74) Representative: Leson, Thomas Johannes Alois, Dipl.-Ing. 
Tiedtke-Bühling-Kinne & Partner GbR, TBK-Patent, Bavariaring 4
80336 München
80336 München (DE)

   


(54) Reciprocating compressor


(57) A compressor comprising: a cylinder block (30,31) containing a cylinder bore (41,42); a drive shaft (39) rotatably supported by the cylinder block; a cam (40,48) attached to the drive shaft to be rotatable integrally therewith; a piston (1,43) housed in the cylinder bore; and a shoe (7,44) having a spherical and flat sliding surface and slidably interposed between the piston and the cam; the piston being reciprocated via the shoe as the cam is rotated; the piston being made of an aluminum or aluminum alloy matrix and having a receiving portion (2,46) for slidably receiving the spherical surface (8,47) of the shoe therein, characterized in that the shoe is made of a ferrous metal matrix and a coating layer containing tin as a major component is formed at the receiving recess of the piston.






Search report