| 摘要 |
PROBLEM TO BE SOLVED: To provide a power steering device which allows a driver to recognize abnormality occurrence in the device immediately. SOLUTION: This device has a structure in which a pair of poppet valves 41, 42 are arranged on the same axis line in the operating direction; when one valve element 41a on the poppet valve 41 side is locked in a state of closing a valve port 40a, tip ends of stopper members 52a, 52b of both valve elements 41a and 42a are contacted with each other and as a result, the operation of the other poppet valve 42 is regulated, which brings about a state of disabling to close the valve port 40b, that is, making it impossible to obtain steering assist efforts. |
