(19)
(11) EP 1 188 923 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.06.2003 Bulletin 2003/25

(43) Date of publication A2:
20.03.2002 Bulletin 2002/12

(21) Application number: 01122238.7

(22) Date of filing: 17.09.2001
(51) International Patent Classification (IPC)7: F04B 27/08
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 18.09.2000 JP 2000281698

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

(72) Inventors:
  • Fukanuma, Tetsuhiko
    Kariya-shi, Aichi-ken (JP)
  • Kayukawa, Hiroaki
    Kariya-shi, Aichi-Ken (JP)
  • Kawaguchi, Masahiro
    Kariya-shi, Aichi-Ken (JP)

(74) Representative: Pellmann, Hans-Bernd, Dipl.-Ing. 
Tiedtke-Bühling-Kinne & Partner GbR, TBK-Patent, Bavariaring 4
80336 München
80336 München (DE)

   


(54) Coating for a swash plate of a swash plate compressor


(57) A swash plate type compressor that has a pair of shoes (18A, 18B, 18C, 18D, 18E) between a swash plate (15) and a piston (17). The motion of the swash plate is transmitted to the piston through the shoes. Each piston reciprocates according to the transmitted motion. A coating (32, 33) is applied to each surface of the swash plate to contact the corresponding shoe. The surface (H) of each coating (32, 33) is flat. Each shoe (18A to 18E) includes a substantially flat surface (34), which contacts the swash plate (15), and a semi-spherical portion (35), which is fitted to the piston (17). Each substantially flat surface (34) includes a main chamfered portion (342) near the periphery. The inclination angle (θ 1) of each main chamfered portion (342) with respect to the corresponding coating is a predetermined angle or less. Each coating contacts one of the substantially flat surfaces (34). The maximum distance (β) between each main chamfered portion (342) and the corresponding coating is equal to or less than the thickness (D) of the corresponding coating (32, 33).






Search report