ROTARY COMPRESSOR

WIPO Patent Application WO/2015/104863

A1

A rotary compressor is equipped with: an orbiting scroll that combines with the volute part of a stationary scroll to form a compression chamber that compresses a refrigerant; a main shaft in the interior of which are formed an oil supply path, through which oil drawn into an oil pump passes, and a bypass passage, which branches from the oil supply path and discharges oil to the outside from an outlet; an electric motor unit that drives the orbiting scroll via the main shaft; and a reed valve that is formed of a bendable material and opens/closes the outlet of the bypass passage. On the outer circumference of the main shaft are formed a fastening surface, by which the reed valve is fastened by a fastening means, and a seating surface, with which the reed valve makes contact, and within the plane of which the outlet of the bypass passage is contained. The fastening surface and/or the seating surface has a slanted shape for the purpose of bending the reed valve, and a preload due to the bending of the reed valve operates on the seating surface, thereby closing the outlet of the bypass passage.

SHIMOJI MIHOKO (JP)
SEKIYA SHIN (JP)
NAGATA HIDEAKI (JP)
KAWAMURA RAITO (JP)
SUGAWA MASAAKI (JP)
ISHIZONO FUMIHIKO (JP)
KAKUDA MASAYUKI (JP)
TAKAMURA YUJI (JP)

PCT/JP2014/071307

July 16, 2015

August 12, 2014

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MITSUBISHI ELECTRIC CORP (JP)

F04C18/02; F04C29/00; F04C29/02

JPH025787A	1990-01-10
JP2003254267A	2003-09-10
JPH0476286A	1992-03-11
JP2000179481A	2000-06-27
JPS61109966U	1986-07-11
JPH0481582A	1992-03-16
JP2011001830A	2011-01-06

KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)

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