Engine and thrust reverser actuation system
AssigneeWoodward HRT, Inc.
InventorsGalen Ko, Yehuda M. Shapira
Life of this patent
Estimating the term…
Abstract
A thrust reverser actuation system for a jet engine having a turbine engine surrounded by a nacelle to define an annular air flow path between the turbine engine and the nacelle, with a thrust reverser having a movable element to reverse the direction of at least a portion of the air flow along the air flow path, where the thrust reverser actuation system includes a hydraulic actuator configured to be operably coupled to the movable element, and a remote actuator that controls the inhibit function of the hydraulic system.
Claims18
A hydraulic lockout apparatus comprising:
- a hydraulic actuator, comprising a valve operable to control a flow of hydraulic fluid to the hydraulic actuator, coupled to at least one movable element to move the at least one movable element into and out of a selected position;
- a hydraulic lockout mechanically linked to the valve and movable between an inhibit condition, wherein movement of the valve is prevented, and a permit condition, wherein movement of the valve is permitted;
- and
- a lockout actuator mechanically linked to the hydraulic lockout and located remotely from the hydraulic lockout, wherein the hydraulic lockout may be placed in either the inhibit or permit condition without requiring access to the hydraulic lockout
- wherein the hydraulic lockout is mechanically linked to the valve of the hydraulic actuator to prevent movement of the valve and the hydraulic actuator when the hydraulic actuator is in the inhibit condition.
(canceled)
(canceled)
A fluid actuation system reverser having a movable element to, the fluid actuation system comprising:
- a fluid actuator configured to be mechanically linked to a movable element;
- an isolation control unit having a valve selectively operable to control a supply of fluid to the fluid actuator, with the valve being in a normally closed condition to inhibit a flow of fluid to the fluid actuator;
- a lever mechanically linked to the valve and movable between a first position and a second position to move the valve between the normally closed condition and an open condition to control the flow of fluid to the fluid actuator;
- and
- a remote actuator operably coupled to the lever and configured to move the lever between the first and second positions.
A lockout apparatus comprising:
- a fluid actuator, comprising a valve operable to control a flow of fluid to the fluid actuator, coupled to at least one movable element to move the at least one movable element into and out of a selected position;
- a fluid lockout mechanically linked to the valve and movable between an inhibit condition, wherein movement of the valve is prevented, and a permit condition, wherein movement of the valve is permitted;
- and
- a lockout actuator mechanically linked to the fluid lockout and located remotely from the fluid lockout, wherein the fluid lockout may be placed in either the inhibit or permit condition without requiring access to the fluid lockout;
- wherein the fluid lockout is mechanically linked to the valve of the fluid actuator to prevent movement of the valve and the fluid actuator when the fluid actuator is in the inhibit condition.
Dependencies are inferred from the claim text.