Displacement type expansion machine and fluid machine

Details Displacement type expansion machine and fluid machine Displacement type expansion machine and fluid machine

2003-12-03

2008-09-02

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Diverse rotary expansible chamber devices

C418S015000, C418S058000, C418S060000, C418S065000

Reexamination Certificate

active

07419369

ABSTRACT:
Disclosed is a displacement type expansion machine. In the displacement type expansion machine, a communicating passage (72) for allowing fluid communication between an expansion-process intermediate position and an outflow position in an expansion chamber (62) is provided thereby to allow the fluid at the outflow side to return to the expansion chamber (62). Such arrangement prevents the pressure of the expansion chamber (62) from being lowered to an excessive extent in predetermined operating conditions, thereby avoiding the drop in power recovery efficiency.

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