Patent ID: 6945050
Filing Date: 2005-09-20
Classification: F01B,F02B

Abstract:
1. A rotary fluid machine comprising a rotor chamber ( 14 ) formed in a casing ( 11 ), a rotor ( 41 ) rotatably housed within the rotor chamber ( 14 ), and a plurality of vane piston units supported on the rotor ( 41 ) so as to be radially movable, the vane piston units including a vane ( 48 ) that slides within the rotor chamber ( 14 ) and is guided by a vane channel ( 49 ) formed in the rotor ( 41 ), a piston ( 47 ) that is slidably fitted in a cylinder ( 44 ) provided in the rotor ( 41 ), and a roller ( 71 ) that rollably engages with an annular channel ( 74 ) formed in the casing ( 11 ), the rotary fluid machine interconverting pressure energy of a gas-phase working medium and rotational energy of the rotor ( characterized in that the roller (