Servovalve feedback wire interface configuration
AssigneeTextron Inc.
InventorRichard J. Haydt
Life of this patent
Estimating the term…
Abstract
An improvement in a servovalve employing spool-valve-position feedback provided by a feedback spring, wherein the feedback spring centerline is not aligned vertically with the center line of the spool valve, comprising a receiving hole in the spool valve body and a slot in the spool for feedback spring clearance; a pin or ball rigidly attached to the feedback spring with the portions of the pin or the ball which contact the sides of the receiving hole fitting in face to face relation to the inner surface of recesses formed in the slot by the hole.
Claims8
In a servovalve having spool-valve-position feedback provided by a feedback spring in contact with a portion of the spool valve body, the improvement comprising:
- a spool valve body having a slot therein, said slot having first and second side walls, said first and second side walls each having a recess therein, each said recess having an inner surface;
- a feedback spring having a head insertable into said slot, said head having bearing surfaces which fit in face to face relation with said inner surface of each of said recesses;
- and
- said slot being of sufficient depth to prevent contact between the feedback spring and the spool valve body.
Dependencies are inferred from the claim text.