Title:
スクロール圧縮機
Document Type and Number:
Japanese Patent JP4440564
Kind Code:
B2
Abstract:
A back pressure chamber (12) provided on a back surface of an orbiting scroll (5) is divided into an inner region (12a) and an outer region (12b) by an annular seal (11). A diameter d of the annular seal (11) is set 0.5 times or more of a diameter D of an orbiting mirror plate (5a). With this, plus thrust force can be applied to the orbiting scroll (5) irrespective of magnitude of a discharge pressure Pd applied to the inner region (12a). Therefore, it is possible to push the orbiting scroll (5) against the fixed scroll (4) only by back pressure of discharge pressure. A set pressure Pm of the outer region (12b) is reduced to a value close to a suction pressure Ps, a pressure adjusting mechanism (20) is swiftly opened after a scroll compressor is started. With this, lubricant oil is supplied from the outer region (12b) to the suction space (9) without a time lag.
More Like This:
| JPS6054701 | [Title of the device] Scroll type fluid machine |
| JP2004293420 | LUBRICATING OIL SEALING STRUCTURE OF DRY PUMP |
| JP4223867 | Vacuum pump |
Inventors:
Kiyoshi Sawai
Noboru Iida
Yoshiyuki Nigami
Akira Tsuda
Teruyuki Akazawa
Noboru Iida
Yoshiyuki Nigami
Akira Tsuda
Teruyuki Akazawa
Application Number:
JP2003168215A
Publication Date:
March 24, 2010
Filing Date:
June 12, 2003
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
F04C27/00; F04C18/02; F04C23/00; F04C29/02; F25B1/00; F25B1/04
Domestic Patent References:
| JP2001280252A | ||||
| JP2002310076A |
Attorney, Agent or Firm:
Shinichi Abe
Yoshihiro Shimizu
Yuji Tsujida
Yoshihiro Shimizu
Yuji Tsujida