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Title:
ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2003/104657
Kind Code:
A1
Abstract:
A rotary compressor lubricating bearings (32, 34, 45) through a main lubrication passage (51) formed in a drive shaft (17) utilizing the pressure difference in a casing (10), wherein the drive shaft (17) and the bearings (32, 34, 45) are provided with sealing parts (65) of an airtight structure located on the opposite sides in the axial direction of bearing part lubricating passages (59, 60, 61) in order to enhance reliability of the bearings (32, 34, 45) by preventing inflow of high pressure gas to the sliding face of the drive shaft (17) and the bearings (32, 34, 45).

Inventors:
Kitaura, Hiroshi c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-ch, Sakai-shi Osaka, 592-8331, JP)
Yamaji, Hiroyuki c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-ch, Sakai-shi Osaka, 592-8331, JP)
Yanagisawa, Masanori c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-ch, Sakai-shi Osaka, 592-8331, JP)
Uekawa, Takashi c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-ch, Sakai-shi Osaka, 592-8331, JP)
Application Number:
PCT/JP2003/004863
Publication Date:
December 18, 2003
Filing Date:
April 16, 2003
Export Citation:
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Assignee:
Daikin Industries, Ltd (Umeda Center Bldg, 4-12 Nakazaki-nishi 2-chome, Kita-k, Osaka-shi Osaka, 530-8323, JP)
Kitaura, Hiroshi c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-ch, Sakai-shi Osaka, 592-8331, JP)
Yamaji, Hiroyuki c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-ch, Sakai-shi Osaka, 592-8331, JP)
Yanagisawa, Masanori c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-ch, Sakai-shi Osaka, 592-8331, JP)
Uekawa, Takashi c/o Rinkai, Factory (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-ch, Sakai-shi Osaka, 592-8331, JP)
International Classes:
F04C18/02; F04C27/00; F04C29/02; (IPC1-7): F04C29/02; F04C27/00; F04C18/02
Foreign References:
JPH10288178A1998-10-27
JPH06173954A1994-06-21
JP2000027782A2000-01-25
JPH10238486A1998-09-08
JPS63115590U1988-07-26
JPH0239590U1990-03-16
Other References:
See also references of EP 1510695A4
Attorney, Agent or Firm:
Maeda, Hiroshi (Honmachi-Nakajima Bldg, 4-8 Utsubohonmachi 1-chome, Nishi-k, Osaka-shi Osaka, 550-0004, JP)
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