CPC F16K 31/0668 (2013.01) [F16K 31/52475 (2013.01); F16K 35/16 (2013.01)] | 18 Claims |
1. A proportional solenoid, capable of linear motion, comprising:
an electromagnetic valve device including
a solenoid assembly having a mobile core,
a push rod connecting the mobile core to a valve plunger, and
a device operable to apply a controlled friction force to hold the mobile core in an intermediate position, wherein the friction force is greater than motive forces generated by the solenoid assembly,
wherein the intermediate position may be any position between completely open and completely closed as set via proportional current, the proportional current being a magnitude of current proportional to a distance for the mobile core to reach the intermediate position.
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