| 摘要 |
<p>An electrohydraulic switching device for emitting electric control signals in dependence on supplied pressure signals. The switching device has a housing wherein a piston pressurizable by the inlet pressure is arranged so as to be axially displaceable. The piston is spring-loaded against the inlet pressure by means of a compression spring arranged between a spring plate and a guide means. The spring plate is secured at the piston by means of a snap ring, and the switching device has an actuating plate for actuating an electric switching mechanism. The actuating plate is positively connected with the piston, with the compression spring at its end facing the switching mechanism being axially guided by the guide sleeve. To reduce the frictional forces acting between the individual components and to ensure a reliable hydraulic sealing of the chamber accommodating the switching mechanism, an elastic sealing element (21) is provided wherein the piston (7) is guided, with the compression spring (6) at its end opposite to the guide sleeve (20) being centered by the spring plate (10).</p> |
