Title:
ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2016/139825
Kind Code:
A1
Abstract:
Provided is a rotary compressor for which the displacement volume of the compressor can be increased or the efficiency of the compressor can be increased at the same displacement volume, while maintaining reliability wherein seizing of a bearing does not occur, thereby enabling higher output and higher efficiency. This rotary compressor is equipped with an electric motor equipped with a rotor, a crankshaft rotated by the rotor, and a compression mechanism unit driven by the crankshaft. The crankshaft has a main shaft affixed to the rotor and an auxiliary shaft provided in the axial direction of the main shaft, and an oil supply hole 4d for supplying oil is formed in the interior of the crankshaft. When the outer diameter of the auxiliary shaft is φD and the diameter of the oil supply hole is φd, φd/φD is 0.7 or less.
Inventors:
SATO KOICHI (JP)
Application Number:
PCT/JP2015/071272
Publication Date:
September 09, 2016
Filing Date:
July 27, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C29/00; F04C18/32; F04C29/02
Foreign References:
| JP2013256923A | 2013-12-26 | |||
| JPS58174182A | 1983-10-13 | |||
| JP2013096280A | 2013-05-20 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)
Patent business corporation きさ patent trademark office (JP)
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