The Boeing Company

Gregory J Vering

Justin D Cottet

Mitchell Mellor

Leanne M Campbell

Aaron P Knock

Gabriela K Defrancisci

Christopher Mark Alley

Hyukbong Kwon

Eduard Oyzerskiy

Daniel M Levine

Christopher M Alley

A landing gear including an outer cylinder, a shock strut assembly, and a passive shrink mechanism. The outer cylinder is coupled to a frame of an aircraft about a trunnion axis of rotation. The shock strut assembly is coupled to the outer cylinder for reciprocation along a longitudinal axis of the outer cylinder. The passive shrink mechanism includes: a first shrink link member coupled to the outer cylinder, a second shrink link member coupling the first shrink link member to the shock strut assembly, a crank member coupled to the outer cylinder, a first connecting link coupling the crank member to a walking beam of a landing gear retract mechanism, and a second connecting link coupling the crank member to the first shrink link member. The passive shrink mechanism is passively extended and shortened through actuation of the landing gear retract mechanism with deployment and retraction of the landing gear.

Landing gear shrink link mechanism

A shrink mechanism for use with a landing gear of an aircraft. The landing gear includes an outer cylinder rotatably coupled to a frame of an aircraft about a trunnion axis of rotation and a shock strut assembly movably coupled to the outer cylinder so as to reciprocate along a longitudinal axis of the outer cylinder. The shrink mechanism incudes a first shrink link member pivotally coupled to the outer cylinder, a second shrink link member coupling the first shrink link member to the shock strut assembly, a crank member pivotally coupled to the outer cylinder, a drive member coupling the crank member to a walking beam of a landing gear retract mechanism, and a driven member coupling the crank member to the first shrink link member.

A dam for use with a duct having a longitudinal axis. The dam employs a single piece insert having a first lateral flange and a second lateral flange configured to engage opposing interior lateral surfaces of the duct. The insert engages the duct in sealing contact in a seated position. The first and second lateral flanges are offset longitudinally along the longitudinal axis and joined with a curved wall having a curvature shaped to be received, with the insert oriented at an insert angle about a normal axis perpendicular to the longitudinal axis, in an aperture in the duct.

Single piece vent dam

A landing gear including an outer cylinder rotatably coupled to a frame of an aircraft about a trunnion axis of rotation, a shock strut assembly movably coupled to the outer cylinder so as to reciprocate along a longitudinal axis of the outer cylinder, and a shrink mechanism including a first shrink link member pivotally coupled to the outer cylinder, a second shrink link member coupling the first shrink link member to the shock strut assembly, a crank member pivotally coupled to the outer cylinder, a drive member coupling the crank member to a walking beam (a.k.a. retract actuator beam) of a landing gear retract mechanism, and a driven member coupling the crank member to the first shrink link member.

Growing community of inventors

Seattle, WA, United States of America

Gregory J Vering