PURPOSE: To eliminate the inutile consumption of power by installing an electromagnetic selector valve which switches the feed of the pressurized oil supplied from a pump on the gear side of a power steering device to a gear or the suction port of the pump on a driving device side according to the steering of a steering wheel.
CONSTITUTION: When a rotary shaft 35 is driven, rotors 23 and 23A revolve to discharge the pressurized oil is into flow-rate controllers 40 and 41. The pressurized oil introduced into an electromagnetic selector valve 60 is introduced into the first suction port 25 at the position B where a steering wheel is not steered, and introduced into the gear 52 of a power steering device at the position A where the steering wheel is steered. Since the pressurized oil discharged from the second discharge port 26A is introduced into the first suction port 25 when the steering wheel is not steered, the pressure after discharge is not increased, and inutile consumption of power of the pump can be prevented.
| WO/2008/046828 | ROTARY POSITIVE DISPLACEMENT PUMP WITH MAGNETIC COUPLING HAVING INTEGRATED COOLING SYSTEM |
| JPH06280777 | FUEL PUMP WITH ANTI-REVERSION INLET |
| JP2003307186 | PUMP DEVICE |
SAKAI TOSHIBUMI
KATOU TOSHIYA
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