SCROLL COMPRESSOR - MITSUBISHI HEAVY IND LTD

Title:

SCROLL COMPRESSOR

Document Type and Number:

WIPO Patent Application WO/2017/141703

Kind Code:

A1

Abstract:

A scroll compressor is provided with: an annular thrust plate (32) provided within a housing and having a thrust bearing surface (32S) in contact with the rear surface of the end plate (21A) of an orbiting scroll (21); and a main balance weight (41) provided to a drive shaft (9) so as to be axially adjacent to the thrust plate (32) and cancelling centrifugal force caused by the eccentric orbiting movement of the orbiting scroll (21). The main balance weight (41) has a decreasing outer diameter section (41a) provided at the thrust plate (32)-side end of the main balance weight (41), the deceasing outer diameter section (41a) having an outer diameter gradually decreasing toward the thrust plate (32). The thrust plate (32) has an increasing inner diameter section (32a) on the main balance weight (41) side of the inner diameter section of the thrust plate (32), the increasing inner diameter section (32a) having an inner diameter gradually increasing toward the main balance weight (41). The decreasing outer diameter section (41a) and the increasing inner diameter section (32a) overlap each other in the radial direction and the axial direction.

Inventors:

MIYAMOTO YOSHIAKI (JP)
KIMATA YOSHIYUKI (JP)
SATO HAJIME (JP)
GOTO TOSHIYUKI (JP)
WATANABE TAKASHI (JP)

Application Number:

PCT/JP2017/003546

Publication Date:

August 24, 2017

Filing Date:

February 01, 2017

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

F04C18/02

Foreign References:

JP2015165105A	2015-09-17
JP2014202161A	2014-10-27
JP2001329967A	2001-11-30
JPH0893664A	1996-04-09
JPH11148468A	1999-06-02
JP2013076391A	2013-04-25
JPH0463984A	1992-02-28
JPS6334318B2	1988-07-08
JP2011214474A	2011-10-27

Other References: