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Patent Searching and Data


Title:
A SLIDING VANE TORSION SPRING FOR A ROTARY COMPRESSOR AND ITS APPLICATION
Document Type and Number:
WIPO Patent Application WO/2009/015544
Kind Code:
A1
Abstract:
A sliding vane torsion spring for a rotary compressor includes an electric motor and a compression assembly which are disposed in a hermetic casing (19). The compression assembly comprises a piston (4) provided in a cylinder (3), an eccentric crankshaft (9) for driving the piston (4) to rotate, bearings (7, 8) for supporting the eccentric crankshaft (9), and a sliding vane (5) disposed in a sliding vane slot (10) of the cylinder. The sliding vane (5) is in contact with one or more torsion springs having a winding coil portion (6, 6') and two end portions (12, 12.1, 12.2, 13, 13”), one end portion (12, 12.1, 12.2) making contact with the sliding vane (5), the other end portion (13, 13”) abutting against a front wall (17) or a back wall (16) of the sliding vane slot (10). A support is disposed on the sliding vane (5), on which is provided an elongated hole, or on the sliding vane (5) is provided an elongated hole; and the torsion spring is formed with a hook head (18) on one end portion (12, 12.1, 12.2).

Inventors:
CHEN ZHENHUA (CN)
XIAOJIN ZHENGXIONG (CN)
LIANG ZIQIANG (CN)
LONG CHUNXIAN (CN)
GAO QIANG (CN)
Application Number:
PCT/CN2008/000254
Publication Date:
February 05, 2009
Filing Date:
January 31, 2008
Export Citation:
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Assignee:
GUANG DONG MEI ZHI REFRIGERATI (CN)
CHEN ZHENHUA (CN)
XIAOJIN ZHENGXIONG (CN)
LIANG ZIQIANG (CN)
LONG CHUNXIAN (CN)
GAO QIANG (CN)
International Classes:
F04C18/356; F04C29/00; F16F1/14
Foreign References:
JPH05149281A1993-06-15
JPH05223082A1993-08-31
JPS63243485A1988-10-11
JPS5713298A1982-01-23
JPS5841292A1983-03-10
JPS6170192A1986-04-10
US5868559A1999-02-09
CN101100998A2008-01-09
CN200968286Y2007-10-31
US5129799A1992-07-14
US7040883B22006-05-09
Attorney, Agent or Firm:
GUANGZHOU YUEGAO PATENT AGENT LIMITED CORPORATION (10/F Block D,No. 37, Linjiang Road,The Pearlriver New City,Guangzhou, Guangdong 3, CN)
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