| 摘要 |
<p>The invention relates to a normally-open high-flow proportional hydraulic valve to be used in driving installations, for the supply of a user, such as a rotary engine or cylinder, with a remotely controllable fluid pressure, by means of a variable intensity current. According to the invention, the valve comprises a proportional electromagnet (2) and a main body (1) with sliding cylinder (3) and control piston (4), inside the main body (1) there being fixed as packets a distribution bushing (5) and some guiding and communication bushings (7 and 8) where the sliding cylinder (3) slides, being maintained in a balance state in relation with the distribution bushing (5) by the forces of the proportional electromagnet (2) and of the coil spring (6), in opposition to the force of the control piston (4).</p> |
