SCROLL FLUID MACHINE

摘要

PURPOSE: A scroll fluid machine is provided to reduce pulsation, vibration and noise and to enhance reliability. CONSTITUTION: A scroll fluid machine comprises a casing. A fixed scroll disc(2) is attached to the casing. Three fixed wraps(2a) are supplied to the fixed scroll disc. An eccentric bush is rotatably supported on the casing. A rotating shaft is supported to be able to be eccentric in the eccentric hole of the eccentric bush. A scroll disc(3) having integrally three rotating wraps(3a) on the rotating shaft is supplied to the rotating shaft. A plurality of pump rooms(13) are formed between the fixed wraps and the rotating wraps. A suction port(4) is communicated with a suction room, which is formed in the seal wall(2b) of the outer circumferential part of the fixed scroll disc. The fixed scroll disc comprises a discharge port(5).