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Patent Searching and Data


Title:
SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2018/021062
Kind Code:
A1
Abstract:
The objective of the present invention is to improve performance by suppressing excessive supply of oil into a compression chamber, and reducing agitation loss of oil due to a balance weight. This scroll compressor is provided with: a crankshaft including an eccentric pin portion; an orbiting scroll having an orbiting boss portion which engages with the eccentric pin portion by way of an orbiting bearing; a fixed scroll; a frame; a hermetically sealed container housing the abovementioned items; and an oil feed hole formed in the crankshaft to supply oil in an oil reservoir inside the hermetically sealed container to an end portion of the eccentric pin portion. The scroll compressor is additionally provided with: a balance weight which is disposed inside the frame and is fixed to the crankshaft; a gap portion penetrating through the balance weight in an axial direction; a first seal member provided between the balance weight on the diametrically outer side of the gap portion and the orbiting scroll; and a second seal member provided between the balance weight on the diametrically outer side of the gap portion and the frame.

Inventors:
NAKANO YASUNORI (JP)
NAKAMURA SATOSHI (JP)
ADACHI TAKAMASA (JP)
CHIKANO MASATSUGU (JP)
YANAGASE YUUICHI (JP)
Application Number:
JP2017/025717
Publication Date:
February 01, 2018
Filing Date:
July 14, 2017
Export Citation:
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Assignee:
HITACHI-JOHNSON CONTROLS AIR CONDITIONING INC (JP)
International Classes:
F04C18/02
Foreign References:
JP2011190779A2011-09-29
JP2012017656A2012-01-26
JPS6170194A1986-04-10
JP2005163687A2005-06-23
JP2000179481A2000-06-27
JPH01318780A1989-12-25
JP2003176794A2003-06-27
JP2016217219A2016-12-22
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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