| 摘要 |
<p>An hydraulic proportional pressure magnet valve comprises a control piston (2) which can reciprocate in a boring in a valve housing (1) having an inlet port (9), an outlet port (10) and a load port (11). A solenoid magnet (3) having a declining characteristic curve for the force acts on the piston in a direction corresponding to an opening of the inlet port, and the pressure in the load port (11) provides a counter-force in the opposite direction. The piston is movable without being influenced by mechanical springs, and the control edges (4) of the control piston (2) have a positive overlapping with the inlet port (9) and the outlet port (10).</p> |
