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US 10,487,923 B2Granted
Multi-bar linkage mechanism
AssigneeWhippany Actuation Systems LLC
InventorShijie Liu
Life of this patent
Estimating the term…
Abstract
Systems provide and methods utilize a multi-bar linkage in conjunction with an actuator to provide mechanical advantage which increases as a control surface moves towards the extremes of its operating envelope.
Claims19
A system configured to provide a concave curve of torque against output position, comprising:
- a three-way linkage joint;
- a control link having a control ground end and a control joint end, wherein the control ground end is rotatably coupled to a fixed portion of a controlled system, and wherein the control joint end is rotatably coupled to the three-way linkage joint;
- a drag link having a drag drive end and a drag joint end, wherein the drag joint end is rotatably coupled to the three-way linkage joint;
- a drive link having a drive drag end and a drive actuator end, wherein the drive drag end is rotatably coupled to the drag drive end of the drag link, and wherein the drive actuator end is operatively coupled to an actuator;
- an output link having an output surface end and an output joint end, wherein the output joint end is rotatably coupled to the three-way linkage joint;
- and
- a surface link having a surface output end and a surface control end, wherein the surface output end is rotatably coupled to the output surface end, and wherein the surface control end is operatively coupled to a movable surface of the controlled system,
- wherein the three-way linkage joint is rotatably coupled to the control link, the drag link, and the output link.
5 more elements
Dependencies are inferred from the claim text.