(19)
(11) EP 1 811 174 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.02.2011 Bulletin 2011/05

(43) Date of publication A2:
25.07.2007 Bulletin 2007/30

(21) Application number: 07100878.3

(22) Date of filing: 22.01.2007
(51) International Patent Classification (IPC): 
F04B 27/10(2006.01)
F04B 39/16(2006.01)
F04B 39/04(2006.01)
F04B 39/00(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 23.01.2006 JP 2006013690

(71) Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Kariya-shi, Aichi 448-8671 (JP)

(72) Inventors:
  • Inoue, Yoshinori
    Kariya-shi Aichi 448-8671 (JP)
  • Koeda, Naoki
    Kariya-shi Aichi 448-8671 (JP)
  • Sakamoto, Masaya
    Kariya-shi Aichi 448-8671 (JP)
  • Tarutani, Tomoji
    Kariya-shi Aichi 448-8671 (JP)

(74) Representative: TBK-Patent 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) Oil separation structure in compressor


(57) A muffler forming member (33) defines a muffler chamber (42). Refrigerant discharged from a cylinder bore (20) is sent to the muffler chamber (42). The muffler forming member (33) is coupled to a circumferential surface (110) of a housing (11) of a compressor (10). An oil separation chamber (36) is defined in a discharge pressure zone (132, 40, 36, 42) of the compressor (10). The oil separation chamber (36) separates the oil from the refrigerant discharged from the cylinder bore (20). The oil separation chamber (36) extends into both the muffler forming member (33) and the housing (11). The oil separation chamber (36) has a refrigerant inlet (403) through which the refrigerant flows into the oil separation chamber (36). The refrigerant inlet (403) is formed in the muffler forming member (33). Therefore, the oil separation chamber (36) is prolonged in the direction from the muffler forming member toward the housing (11), thereby improving the oil separation performance (Fig. 3).










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