| 摘要 |
A steering system ( 10 ) for a vehicle ( 16 ) comprises a housing ( 20 ) having first and second end portions ( 32, 34 ) and an intermediate portion ( 50 ). A steering member ( 66 ) is supported for axial movement in the housing ( 20 ). A piston ( 100 ) fixed for movement with the steering member ( 66 ) has opposite end faces ( 104, 106 ). First and second springs ( 130, 132 ) engage the end faces ( 104, 106 ) of the piston ( 100 ) and bias the piston and thereby the steering member ( 66 ) in first and second axial directions toward a straight ahead position. Steering linkage ( 124, 126 ) connected with the piston member ( 100 ) transmits movement of the piston member ( 100 ) to steerable wheels ( 12, 14 ) of the vehicle.
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