Patent ID: 6513482
Filing Date: 2003-02-04
Classification: F01B,F01C,F02B,F02G,F04B,F04C,Y02T

Abstract:
A rotary type fluid machine having an expanding function and a compressing function, including a casing (7) having a rotor chamber (14), a rotor (31) accommodated in said rotor chamber (14), and a plurality of vane-piston units (U1-U12) which are radially disposed in said rotor (31) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U1-U12) having a vane (42) sliding in said rotor chamber (14) and a piston (41) placed in abutment against a non-slide side of the vane (42), wherein when functioning as an expanding machine (4), expansion of a high pressure fluid is used to operate said piston (41) to rotate said rotor (31) via a power conversion device and expansion of a low pressure fluid caused by a pressure reduction in said high pressure fluid is used to rotate said rotor (31) via said vane (42), while when functioning as a compressing machine, rotation of said rotor (31) is used to supply a low pressure fluid to the side of said piston (41) via said vane (42) and said piston (41) is operated by said vane (42) to convert said low pressure fluid to a high pressure fluid.