Scroll type hydraulic machine

Abstract

Abstract PURPOSE:To set contact pressure between a revolving scroll and a fixed scroll to a prescribed value by interposing a cam means between a shaft of said revolving scroll and an eccentric shaft of a crank shaft fitted to said shaft such that an angle theta set to those shafts is made variable in a range of 0<cottheta. CONSTITUTION:In the captioned machine wherein it sucks in and compresses a refrigerant and discharges it by revolving a revolving scroll 2 round a fixed scroll (not shown) engaged with the revolving scroll via a crank shaft 6 by means of a motor being driven, a cylindrical shaft 8 for supporting an eccentric shaft 7 of the crank shaft 6 is formed on the side of the rear surface of the revolving scroll 2. A cam ring 71 is interposed between the shaft 8 and the eccentric shaft 7, and a shaft center Os of the shaft 8 is displaced with respect to a shaft center Or of the crank shaft 6 and a shaft center Oc of the eccentric shaft 7. The cam ring 71 is formed such that an angle theta formed between a segment OsOr and a segment OsOc and adapted to turn in a direction of the rotatin of the crank shaft is made variable in a range of 0<cottheta.

Inventors

• 👤 Hitoshi Ozawa
• 👤 仁 小沢
• 👤 Yoshiaki Matoba
• 👤 的場　好昭

Bibliographic Details