(19)
(11) EP 1 170 504 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.08.2003 Bulletin 2003/34

(43) Date of publication A2:
09.01.2002 Bulletin 2002/02

(21) Application number: 01116093.4

(22) Date of filing: 03.07.2001
(51) International Patent Classification (IPC)7: F04B 27/10, F04B 35/04, F04B 39/00
(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: 04.07.2000 JP 2000201956

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

(72) Inventors:
  • Nakane, Yoshiyuki
    Kariya-shi, Aichi-ken (JP)
  • Yokomachi, Naoya
    Kariya-shi, Aichi-ken (JP)
  • Murakami, Kazuo
    Kariya-shi, Aichi-ken (JP)
  • Koide, Tatsuya
    Kariya-shi, Aichi-ken (JP)
  • Hishinuma, Yuumin
    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) Muffler for compressor


(57) A compressor includes a cylinder block, a chamber housing, a drive shaft, a piston, and a cam mechanism. The cylinder block has a plurality of cylinder bores and a muffler chamber. The muffle chamber is formed within the cylinder block in a space between the cylinder bores. The chamber housing is secured to one end of the cylinder block and has at least a pair of a suction chamber and a discharge chamber located near each of the cylinder bores. The discharge chamber communicates with the muffler chamber. The drive shaft is rotatably supported in the cylinder block. The piston is disposed in each of the cylinder bores for compressing gas to generate compressed gas. The cam mechanism converts rotation of the drive shaft to reciprocating movement of the piston. In the present invention, pressure pulsations are suppressed without increasing the compressor in size even when the high-pressure refrigerant such as carbon dioxide is applied.






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