| 摘要 |
PURPOSE:To dispense with a valve in a main circuit and a relief valve by connecting a fixed capacity pump to the output shaft of a reversible motor to control the flow direction and flow of fluid in a pump by operating a clutch and others. CONSTITUTION:When a revolving magnetic field is generated in a stator coil 4, a stator core 6 and a flywheel 5 are rotated with a predetermined rotational frequency. When compressed fluid is supplied from the X side through a line 7 during the rotation of the flywheel 5, a piston 9 at the forward rotation side cylinder chamber moves left in the drawing so long as the pressure of fluid is present, and presses a frictional plate group 12 so that rotational torque is transmitted from the flywheel 5 to a clutch boss 11 through a cylinder 10 and the frictional plate group 12 and an output shaft 14 instantly enters the forward rotational condition.
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