(19)
(11) EP 2 093 525 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.11.2014 Bulletin 2014/48

(43) Date of publication A2:
26.08.2009 Bulletin 2009/35

(21) Application number: 09250201.2

(22) Date of filing: 26.01.2009
(51) International Patent Classification (IPC): 
F25B 31/02(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 20.02.2008 JP 2008038860

(71) Applicant: Mitsubishi Electric Corporation
Chiyoda-ku Tokyo 100-8310 (JP)

(72) Inventors:
  • Sato, Koichi
    Tokyo 100-8310 (JP)
  • Maeyama, Hideaki
    Tokyo 100-8310 (JP)

(74) Representative: Nicholls, Michael John 
J A Kemp 14 South Square Gray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB)

   


(54) A hermetic type compressor


(57) The hermetic type compressor 100 according to the present invention comprises, inside ahermetic container 1, a compressing mechanism portion 20 and an electric motor 10 for driving the compressing mechanism portion 20, and performs compression of the refrigerant continuously by dividing a compression room with a vane into a high-pressure room and a low-pressure room. The compression room is composed of a cylinder 16 that disposes therein a rolling piston 7 fitted to an eccentric axis 6a of the crankshaft 6 rotated by the electric motor 10, and a cylinder head 4 and a frame 5 that block both ends of the cylinder 16 in an axial direction. According to the hermetic type compressor 100 using the HC refrigerant, the electric motor is fitted and fixed to an inner peripheral plane of the hermetic container. An outer diameter of the electric motor is less than an outer diameter of the compressing mechanism portion. For the cylinder having an inner diameter D and a height H, D/H is set to more than 0.5 and less than 0.6.







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