| 摘要 |
PROBLEM TO BE SOLVED: To allow a pressure regulator to have a power generating function by which a gas pressure regulator is not enlarged and also the responsiveness of a pressure regulating mechanism is not affected. SOLUTION: The pressure regulator includes: a diaphragm 14 for forming a part of the partitioning wall of a pressure regulating chamber 11 which communicates with a gas stream inlet via a pressure regulating valve 20; and a pressure regulating spring 16 for energizing the diaphragm toward the pressure regulating chamber. The pressure regulator regulates the opening degree of the pressure regulating valve linked with the movement of the diaphragm, so as to regulate gas pressure in the pressure regulating chamber. Piezoelectric element modules 61, 62 for converting mechanical energy into electric energy are arranged in parts for receiving the vibration of at least the diaphragm or the pressure regulating spring. Then, power is generated by the vibration of the diaphragm or the pressure regulating spring. COPYRIGHT: (C)2008,JPO&INPIT
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