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Title:
A ROTARY COMPRESSOR WITH LOW PRESSURE IN ITS SHELL AND METHODS FOR CONTROLLING ITS COLD MEDIA AND OIL AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2009/059488
Kind Code:
A1
Abstract:
A rotary compressor (1) with low pressure in its shell (20) comprises a compressing assembly (21) and an electric motor assembly (22) which are provided in the shell (20); the compressing assembly (21) comprises a cylinder (23), a piston (61) which is provided in the cylinder (23), a sliding vane (62) which is provided in a sliding vane chamber (63) of the cylinder (23), an eccentric crankshaft (26) which drives the piston (61), and an upper bearing (24) and a lower bearing (25) which support the eccentric crankshaft (26); the electric motor assembly (22) comprises a motor rotor (27) and a motor stator (28); the shell (20) is provided with acold media shunt device, which is provided on the top or side of the shell (20), and the cold media shunt device comprises a shunt pipe (9), which is provided with a spring pipe (40) used to adjust the shunting ratio. A suction muffler (35) is provided between the electric motor assembly (22) and the compressing assembly (21), and an annular clearance is provided between the suction muffler (35) and a main bearing (36).

Inventors:
CHEN ZHENHUA (CN)
XIAOJIN ZHENGXIONG (CN)
LIANG ZIQIANG (CH)
LONG CHUNXIAN (CN)
GAO QIANG (CN)
Application Number:
PCT/CN2008/000244
Publication Date:
May 14, 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 (CH)
LONG CHUNXIAN (CN)
GAO QIANG (CN)
International Classes:
F04C18/356; C09K5/04; F04B7/06; F04B19/06; F04C29/00; F04C29/02; F04C29/04; F04C29/06; F04C29/12; F25B1/04; F25B31/02
Foreign References:
CN1608173A2005-04-20
CN1815031A2006-08-09
CN1061132C2001-01-24
CN1115376A1996-01-24
CN1620554A2005-05-25
CN2821494Y2006-09-27
CN1192168C2005-03-09
JPH07294061A1995-11-10
CN2625604Y2004-07-14
CN101000054A2007-07-18
CN1135300C2004-01-21
JP2003148365A2003-05-21
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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