Title:
スクロール式流体機械
Document Type and Number:
Japanese Patent JP5001018
Kind Code:
B2
Abstract:
A scroll fluid machine that is capable of preventing a power loss and enhancing the degree of hermeticity of compression chambers. A plurality of outer peripheral projections are formed on an outer peripheral surface of a wrap portion of each scroll. An outer peripheral coating layer is formed on an outer peripheral surface of a wrap portion of a fixed scroll, and an inner peripheral coating layer is formed on an inner peripheral surface of the wrap portion. Each of the coating layers comprises: contact portions that make contact with the mating wrap portion; and non-contact portions that do not make contact with the mating wrap portion. In this way, the degree of hermeticity of the compression chambers can be enhanced by the contact portions, and power loss can be prevented by the non-contact portions.
Inventors:
Keisuke Taniguchi
Yoshiyuki Kanemoto
Yoshiyuki Kanemoto
Application Number:
JP2007022163A
Publication Date:
August 15, 2012
Filing Date:
January 31, 2007
Export Citation:
Assignee:
Hitachi Industrial Equipment Systems Co., Ltd.
International Classes:
F04C18/02; F04C25/02; F04C27/00; F04C29/00
Domestic Patent References:
JP2005076517A |
Foreign References:
WO1997049919A1 |
Attorney, Agent or Firm:
Kazuhiko Hirose