| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid pressure adjusting device having a new structure and mechanism, which can perform precise control without malfunction, and enables stable supply even in a case of insufficient supplying capability or large pressure fluctuation on the supply side. SOLUTION: The electronic fluid pressure adjusting device to be provided between the primary side and the secondary side of a fluid passage to keep the secondary fluid pressure in a predetermined range comprises: a pressure sensor provided on the secondary side or primary side passage to measure the secondary pressure or primary pressure, to transmit a pressure signal measured by the pressure sensor to a control circuit having an arithmetic part; a pressure regulating valve directly-coupled with a solenoid, between the primary side and the secondary side; and the control circuit which controls the solenoid by a control signal obtained by arithmetic operation considering the passage characteristic so as to be suitable to the passage characteristic. COPYRIGHT: (C)2007,JPO&INPIT
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