HERMETIC SCROLL COMPRESSOR FOR HELIUM

Title:

HERMETIC SCROLL COMPRESSOR FOR HELIUM

Document Type and Number:

Japanese Patent JP2007192071

Kind Code:

A

Abstract:

To compatibly establish protection of terrestrial environment and securing reliability of a compressor, in a hermetic scroll compressor 100 for helium.

In the hermetic scroll compressor 100 for helium, slide bearings of which material does not contain lead, of which bearing base materials 32b, 39b, 33b are made of steel material and of which bearing sliding surface members 32a, 39a, 33a are made of fluororesin are used as a turning slide bearing 32, an auxiliary slide bearing 39 and a thrust slide bearing 33, polyether heat resistant high viscosity oil 23 is filled in a bottom part in the hermetic vessel 1, Sommerfeld constants of all lubricating oil films of the turning slide bearing 32, the auxiliary slide bearing 39 and the thrust slide bearing 33 during compressor operation are in a range of 0.01-0.20.

Inventors:

SHIIBAYASHI MASAO
IMAMURA HIROYUKI
MIZUNO TAKAO

Application Number:

JP2006009478A

Publication Date:

August 02, 2007

Filing Date:

January 18, 2006

Export Citation:

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Assignee:

HITACHI LTD

International Classes:

F04C18/02; C10M107/34; F04C29/00; F16C17/02; F16C17/04; F16C33/20; C10N20/02; C10N30/08; C10N40/30

Domestic Patent References:

JP2003278672A	2003-10-02
JPH10148188A	1998-06-02
JP2004251226A	2004-09-09
JPH06336594A	1994-12-06
JP2001065458A	2001-03-16
JP2005113865A	2005-04-28

Attorney, Agent or Firm:

Polaire Patent Business Corporation

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