SCROLL EXPANSION MACHINE AND ITS DRIVING METHOD

摘要

PROBLEM TO BE SOLVED: To prevent an extreme reduction of energy generated from an introduced fluid by producing a volume ratio and an introduction volume corresponding to introduced pressure. SOLUTION: This scroll expansion machine comprises a bypath port 14 for communicating a high pressure part 7 at its predetermined position with an operation chamber located between a minimum position side and a maximum position side and a valve mechanism 15 provided in the bypath port 14, which is open when the introduced pressure Ps as pressure in the high pressure part 7 is a set one or less. COPYRIGHT: (C)2003,JPO