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Title:
SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2003/074879
Kind Code:
A1
Abstract:
A scroll compressor, wherein an oil feed passage (50) to the pressing surfaces of a fixed scroll (21) and a movable scroll (22) is utilized as a high-pressure inlet route when a differential pressure is high, and when the high-pressure inlet route is cut out when the differential pressure is low, refrigerating machine oil is fed from the oil feed passage (50) to the pressing surfaces through a low-pressure space (S1) in a casing, whereby a structure to prevent the lowering of an efficiency by controlling the pressing force of the movable scroll (22) against the fixed scroll (21) can be simplified to reduce a cost and also prevent a defective operation.

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Inventors:
Furusho, Kazuhiro c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 1, Chikkou-shinmachi 3-cho Sakai-shi Osaka, 592-8331, JP)
Kato, Katsumi c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 1, Chikkou-shinmachi 3-cho Sakai-shi Osaka, 592-8331, JP)
Yamaji, Hiroyuki c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 1, Chikkou-shinmachi 3-cho Sakai-shi Osaka, 592-8331, JP)
Application Number:
PCT/JP2003/002283
Publication Date:
September 12, 2003
Filing Date:
February 27, 2003
Export Citation:
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Assignee:
Daikin Industries, Ltd (Umeda Center Bldg, 4-12 Nakazaki-nishi 2-chom, Kita-ku Osaka-shi Osaka, 530-8323, JP)
Furusho, Kazuhiro c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 1, Chikkou-shinmachi 3-cho Sakai-shi Osaka, 592-8331, JP)
Kato, Katsumi c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 1, Chikkou-shinmachi 3-cho Sakai-shi Osaka, 592-8331, JP)
Yamaji, Hiroyuki c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 1, Chikkou-shinmachi 3-cho Sakai-shi Osaka, 592-8331, JP)
International Classes:
F01C21/10; F04C18/02; F04C27/00; F04C28/28; F04C29/02; F04C23/00; (IPC1-7): F04C18/02; F04C29/10
Foreign References:
JP2001214872A
JPH08303371A
US6135739A1
JPH08303370A
JP2000329075A
Other References:
See also references of EP 1486676A1
Attorney, Agent or Firm:
Maeda, Hiroshi (Taihei Bldg, 4-8 Utsubohonmachi 1-chom, Nishi-ku Osaka-shi Osaka, 550-0004, JP)
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