| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary expander with a simplified structure reducing energy loss due to sliding between members during operation. SOLUTION: The rotary expander 2 includes: a rotor 13 being in contact with the inner peripheral surface 10a of a cylinder 10 and revolving in an expansion chamber 17; a blade 14 pushed and urged to abut on the outer peripheral surface of the rotor 13, reciprocating corresponding to the revolution of the rotor 13, and dividing the expansion chamber 17 into a section into which high pressure gas flows and a section discharging the expanded low pressure gas; a reciprocating member 15 pushed and urged to abut on the outer peripheral surface of the rotor 13 and reciprocating corresponding to the revolution of the rotor 13; and a regulating means 16 for causing the high pressure gas to flow intermittently into the expansion chamber 17 by the reciprocating motion of the reciprocating member 15. Thus, the structure of the rotary expander 2 is made simple, and energy loss due to sliding between members during operation is reduced. COPYRIGHT: (C)2011,JPO&INPIT
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