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Title:
HERMETIC TYPE COMPRESSOR
Document Type and Number:
Japanese Patent JP2009197644
Kind Code:
A
Abstract:

To provide a safe hermetic type compressor having little risk of ignition or explosion even if a refrigerant is leaked when using an HC refrigerant in a refrigeration circuit.

In this hermetic type compressor 100 using the HC refrigerant, a compressing mechanism portion 20 and an electric motor 10 driving the compressing mechanism portion 20 are provided in a hermetic container 1, and a compression chamber composed of a cylinder 16 provided with a rolling piston 7 arranged inside thereof and fitted around the eccentric shaft 6a of a crankshaft 6 rotated by the electric motor 10, and a cylinder head 4 and a frame 5 which block both axial ends of the cylinder 16, is sectioned into a high-pressure chamber and a low-pressure chamber by a vane to successively compress the refrigerant. The electric motor is fitted and fixed to the inner peripheral surface of the hermetic container, and the outer diameter of the electric motor is set smaller than the outer diameter of the compressiing 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 1.6.


Inventors:
Sato, Koichi
Maeyama, Hideaki
Application Number:
JP2008000038860
Publication Date:
September 03, 2009
Filing Date:
February 20, 2008
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F04C18/356; F04C29/00; F25B1/04
Domestic Patent References:
JPH11118271A1999-04-30
JPH05302584A1993-11-16
JPH01271687A1989-10-30
Attorney, Agent or Firm:
溝井 章司