SCROLL COMPRESSOR

WIPO Patent Application WO/2013/145017

A1

The purpose of the present invention is to provide a highly reliable scroll compressor by maintaining necessary and sufficient lubricating oil in a back pressure chamber while reducing the agitation loss of the lubricating oil in the back pressure chamber due to an orbiting motion. A scroll compressor is configured such that a central side space and a back pressure chamber are formed on the back surface side of an orbiting scroll with respect to a fixed scroll, the pressure in the central side space is approximately the same as discharge pressure from a compression chamber, and the pressure in the back pressure chamber is lower than the pressure in the central side space, and is provided with a first oil supply means for supplying oil from the central side space to the back pressure chamber, and a second oil supply means for supplying oil from the back pressure chamber to the compression chamber by causing the compression chamber and the back pressure chamber to intermittently communicate with each other. The first oil supply means is configured such that the supply amount of the oil to the back pressure chamber is increased when the oil is supplied from the back pressure chamber to the compression chamber by the second oil supply means.

MATSUMURA SHOJI (JP)
OHTAHARA MASARU (JP)
TAKEDA HIROMU (JP)
MIYAKE MASASHI (JP)
YANAGASE YUICHI (JP)
CHIKANO MASATSUGU (JP)

PCT/JP2012/002212

October 03, 2013

March 30, 2012

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HITACHI APPLIANCES INC (JP)
MATSUMURA SHOJI (JP)
OHTAHARA MASARU (JP)
TAKEDA HIROMU (JP)
MIYAKE MASASHI (JP)
YANAGASE YUICHI (JP)
CHIKANO MASATSUGU (JP)

F04C18/02

WO2009130878A1

2009-10-29

JPH1113673A	1999-01-19
JP3696683B2	2005-09-21
JP2008138578A	2008-06-19
JP2009024664A	2009-02-05

INOUE, Manabu et al. (JP)
Manabu Inoue (JP)

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