HANDLE ANGLE CORRECTING SOLENOID VALVE, POWER STEERING VALVE, AND FULLY HYDRAULIC POWER STEERING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a handle angle correcting solenoid valve, a power steering valve and a fully hydraulic power steering device capable of reducing the pressure loss of hydraulic fluid flowing between the steering valve and a hydraulic actuator, and of reducing the loss of energy when the hydraulic fluid flows back by way of the solenoid valve. SOLUTION: The correcting valve 11 comprises a body 33 with oil passage; 35 to 38 communicable with four ports 12 to 15 in the steering valve 10, and a drive control part 34 having built therein a plunger 50 and a ball 52 which constitute a valve function for opening and closing those of the oil passages 35 to 38 where the oil passage (R port) 37 and the oil passage (L port) 38 are communicated with each other. With the faying surface of the body 33 fayed with the faying surface of a valve body 10a, screws are threaded therein whereby the correcting valve 11 is integrally assembled to the steering valve 10.