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Title:
SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2011/099308
Kind Code:
A1
Abstract:
An injection port (27) to communicate with a compression chamber (25) during a compressing operation is formed in a stationary scroll (30). Refrigerant oil separated from refrigerant discharged from a scroll compressor (10) is introduced from the injection port (27) to the compression chamber (25) together with gas refrigerant having an intermediate pressure. The portions of teeth bottom surfaces (31a, 41a) of the stationary scroll (30) and the rotary scroll (40) that face the compression chamber (25) communicating with the injection port (27) function as intermediate teeth bottom areas (36, 46). The portions of the teeth bottom surfaces that are closer to the outer peripheral side end portions of laps (32, 42) than the intermediate teeth bottom areas (36, 46) function as suction side teeth bottom areas (35, 45). Regarding the clearances between the teeth bottom surfaces (31a, 41a) and the tip surfaces (42a, 32a) of the laps (42, 32), the values of the clearances in the suction side teeth bottom areas (35, 45) are larger than those in the intermediate teeth bottom areas (36, 46).

Inventors:
NAKAMURA, Souichi (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-cho, Nishi-ku, Sakai-sh, Osaka 31, 〒5928331, JP)
中村壮一 (〒31 大阪府堺市西区築港新町3丁12番地 ダイキン工業株式会社 堺製作所 臨海工場内 Osaka, 〒5928331, JP)
JOUMURA, Shuuichi (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-cho, Nishi-ku, Sakai-sh, Osaka 31, 〒5928331, JP)
城村周一 (〒31 大阪府堺市西区築港新町3丁12番地 ダイキン工業株式会社 堺製作所 臨海工場内 Osaka, 〒5928331, JP)
Application Number:
JP2011/000814
Publication Date:
August 18, 2011
Filing Date:
February 14, 2011
Export Citation:
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Assignee:
DAIKIN INDUSTRIES, LTD. (Umeda Center Bldg, 4-12 Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
ダイキン工業株式会社 (〒23 大阪府大阪市北区中崎西2丁目4番12号 梅田センタービル Osaka, 〒5308323, JP)
NAKAMURA, Souichi (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-cho, Nishi-ku, Sakai-sh, Osaka 31, 〒5928331, JP)
中村壮一 (〒31 大阪府堺市西区築港新町3丁12番地 ダイキン工業株式会社 堺製作所 臨海工場内 Osaka, 〒5928331, JP)
JOUMURA, Shuuichi (Sakai Plant DAIKIN INDUSTRIES, LTD., 12, Chikkou-shinmachi 3-cho, Nishi-ku, Sakai-sh, Osaka 31, 〒5928331, JP)
International Classes:
F04C18/02
Attorney, Agent or Firm:
MAEDA, Hiroshi et al. (Osaka-Marubeni Bldg, 5-7 Hommachi 2-chome, Chuo-ku, Osaka-sh, Osaka 53, 〒5410053, JP)
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Claims: