| 摘要 |
<p>A hydrostatic steering system has a rotary slide valve which is formed from a rotary slide (5) mounted directly in a housing (2). Radial control bores (27, 28, 30, 31, 32 and 23, 24) and recesses (25, 26) which are easy to produce are provided in the housing (2) and the rotary slide (5) for controlling the hydraulic oil. The rotary slide (5) is centred in the housing (2) by means of a restoring device (8, 10 to 13). The rotary slide valve (2, 5) is moved by means of a viscous coupling (6, 7, 9) which can be driven by means of a steering wheel. The steering system comprises a valve device (40) which is located between a pressure line (36) connected to a high-pressure pump (37) and a return line (51) and can be controlled as a function of a load pressure, applied via a control line (38), in a servomotor (47). <IMAGE></p> |
