MANUALLY ADJUSTABLE POPPET VALVES FOR A POWER ASSIST STEERING GEAR

A steering gear includes a housing defining a chamber. A piston divides the chamber into first and second chamber portions. The piston is moveable along a linear axis relative to the housing upon pressurization of fluid in one of the first and second chamber portions. A pressure relief vents pressurized fluid from one of the first and second chamber portions to one other of the first and second chamber portions upon movement of the piston to a predetermined position. The pressure relief assembly includes a first valve at a first end of the pressure relief assembly and a second valve at a second end of the pressure relief assembly. The pressure relief assembly is axially movable relative to the piston to adjust the position of the first valve and the second valve relative to the piston. 本申请公开了一种转向机构，包括确定腔室的壳体。活塞将该腔室分成第一和第二腔室部分。在第一和第二腔室部分中的一个内的流体增压时，活塞可沿线性轴线相对于壳体运动。当活塞运动至预定位置时，压力释放组件使得增压流体从第一和第二腔室部分中的一个排出至该第一和第二腔室部分中的另一个。压力释放组件包括在压力释放组件的第一端处的第一阀和在压力释放组件的第二端处的第二阀。压力释放组件可相对于活塞轴向运动，以便调节第一阀和第二阀相对于活塞的位置。