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1. US20220144415 - METHODS FOR MONITORING SERVICE INTERVAL OF AN ACTUATOR

Office
United States of America
Application Number 17092798
Application Date 09.11.2020
Publication Number 20220144415
Publication Date 12.05.2022
Publication Kind A1
IPC
B64C 25/28
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
25Alighting gear
02Undercarriages
08non-fixed, e.g. jettisonable
10retractable, foldable, or the like
18Operating mechanisms
26Control or locking systems therefor
28with indicating or warning devices
B64C 25/20
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
25Alighting gear
02Undercarriages
08non-fixed, e.g. jettisonable
10retractable, foldable, or the like
18Operating mechanisms
20mechanical
G01D 5/14
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
14influencing the magnitude of a current or voltage
B64F 5/60
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
FGROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
5Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
60Testing or inspecting aircraft components or systems
CPC
B64F 5/60
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
FGROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
5Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
60Testing or inspecting aircraft components or systems
B64C 25/28
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
25Alighting gear
02Undercarriages
08non-fixed, e.g. jettisonable
10retractable, foldable, or the like
18Operating mechanisms
26Control or locking systems therefor
28with indicating or warning devices
G01D 5/145
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
14influencing the magnitude of a current or voltage
142using Hall-effect devices
145influenced by the relative movement between the Hall device and magnetic fields
B64C 25/20
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
25Alighting gear
02Undercarriages
08non-fixed, e.g. jettisonable
10retractable, foldable, or the like
18Operating mechanisms
20mechanical
Applicants Andrew Michael Ellis
Safran Landing Systems
Graeme Peter Arthur Klim
Safran Landing Systems Canada Inc.
Aakash Gohil
Pierrick Géraud Alexandre Lemonnier
Leszek Marian Dacko
Inventors Andrew Michael Ellis
Graeme Peter Arthur Klim
Aakash Gohil
Pierrick Géraud Alexandre Lemonnier
Leszek Marian Dacko
Title
(EN) METHODS FOR MONITORING SERVICE INTERVAL OF AN ACTUATOR
Abstract
(EN)

A method of determining a service interval for an actuator of a landing gear assembly is suitable for used with a landing gear assembly in which the actuator positions the landing gear assembly between a stowed position and a deployed position. The method includes the steps of determining an actuator travel value for a time interval and increasing a total actuator accumulated travel value by the actuator travel value for the time interval. The method further includes the step of comparing the total actuator accumulated travel value to a predetermined value.


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