Jansen's Aircraft Systems Controls, Inc.

Craig S Jansen

Harvey B Jansen

A device for metering pressurized fluid in proportion to a supplied input signal to a solenoid provides non-proportional magnetic flux rectified by a piece-wise non-linear spring assembly. The non-linear spring assembly includes a pair of flexure springs each with four independent spring fingers. The spring fingers supply a plurality of piece-wise forces opposing movement of the armature caused by magnetic flux generated by an electromatic coil to provide a non-proportional opposing force the non-proportional force of the magnetic flux. This allows the metering valve to be moved, and thereby fluid metered, in proportion to the input signal supplied to the coil. A position transducer can be coupled the armature to provide valve position feedback to an electronic control unit for correcting deviations in the actual position of the valve.

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Mesa, AZ, United States of America

Craig S Jansen