PRESSURE REGULATING VALVE
1 Assignment
0 Petitions
Accused Products
Abstract
A pressure regulating valve having a compression spring fixed in a valve housing for positioning a valve plunger connected to a magnetic armature in the position above a valve seat and not electromagnetically excited, in order to create a connection between at least two pressure medium channels opening into the valve housing, and having a further compression spring disposed coaxially to the first compression spring in the valve housing, having the characteristic that the first compression spring is designed as a control spring forming a stroke and force-specific spring drive by adjusting the spring rates of both compression springs to the force/distance curve of an electromagnet by varying the current in an exciter coil, wherein the further compression spring is designed as a variably adjustable spring acting opposite to the control spring.
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Citations
24 Claims
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1-12. -12. (canceled)
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13. A pressure regulating valve comprising:
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a first compression spring fixed in a valve housing for positioning a valve plunger connected to a magnetic armature in an electromagnetically non-excited position raised from a valve seat, in order to establish a communication, controllable by analog means, between at least two pressure medium channels opening into the valve housing, and a second compression spring arranged in the valve housing coaxially with the first compression spring, wherein the first compression spring is in the form of a control spring and the second compression spring is in the form of a variably adjustable adjusting spring acting oppositely to the control spring, the control spring and the adjusting spring being configured in such a manner that, through a coordination of a total force (Fs) and spring rates of the two compression springs with a force/distance curve of an electromagnet, a stroke-specific and force-specific spring drive is formed through variation of current in an exciter coil. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification