Landing gear add-on energy absorption system
AssigneeGoodrich Corporation
InventorsBasavaraj Bodki, Hemanth M N, Kyle M. Madey
Life of this patent
Estimating the term…
Abstract
A shock strut assembly is disclosed herein. The shock strut assembly includes a shock strut cylinder defining a mixed fluid chamber, a shock strut piston defining a liquid chamber, the shock strut piston operatively coupled to slide within the shock strut cylinder, an orifice support tube coupled to the shock strut cylinder and defining an orifice between the liquid chamber and the mixed fluid chamber, a retainer housing coupled to the orifice support tube and configured to restrict a flow of liquid from the liquid chamber to the mixed fluid chamber, a spring retainer coupled to the orifice support tube and disposed over the retainer housing, and a spring disposed between the retainer housing and the spring retainer.
Claims17
A shock strut assembly, comprising:
- a mixed fluid chamber;
- an orifice coupled to the mixed fluid chamber;
- an orifice support tube coupled to a shock strut cylinder and defining the orifice;
- a liquid chamber coupled to the mixed fluid chamber by the orifice, the orifice allowing a liquid to flow from the liquid chamber to the mixed fluid chamber;
- a spring retainer disposed adjacent the orifice and configured to slide with respect to the orifice support tube;
- a gap defined by the spring retainer and the orifice support tube and configured to house the spring;
- and
- a spring disposed in the gap, the spring configured to compress in response to a pressure in the liquid chamber exceeding an upper threshold, the compression of the spring lowering the pressure in the liquid chamber.
A shock strut assembly, comprising:
- a shock strut cylinder defining a mixed fluid chamber;
- a shock strut piston defining a liquid chamber, the shock strut piston operatively coupled to slide within the shock strut cylinder;
- an orifice support tube coupled to the shock strut cylinder and defining an orifice between the liquid chamber and the mixed fluid chamber;
- a metering pin configured to extend through the orifice and restrict a flow of a liquid from the liquid chamber to the mixed fluid chamber in response to a pressure in the liquid chamber being below an upper threshold;
- a retainer housing coupled to the orifice support tube and configured to restrict a flow of liquid from the liquid chamber to the mixed fluid chamber;
- a spring retainer coupled to the orifice support tube and disposed over the retainer housing;
- and
- a spring disposed between the retainer housing and the spring retainer.
A landing gear assembly, comprising:
- a shock strut;
- a wheel assembly coupled to the shock strut;
- and
- an energy absorption system coupled to the shock strut, the energy absorption system including:
- a shock strut cylinder defining a mixed fluid chamber;
- a shock strut piston defining a liquid chamber, the shock strut piston operatively coupled to slide within the shock strut cylinder;
- an orifice support tube coupled to the shock strut cylinder and defining an orifice between the liquid chamber and the mixed fluid chamber;
- a retainer housing coupled to the orifice support tube and configured to restrict a flow of liquid from the liquid chamber to the mixed fluid chamber;
- a spring retainer coupled to the orifice support tube and disposed over the retainer housing;
- an orifice plate disposed between the retainer housing and the spring retainer, the orifice plate configured to float between the retainer housing and the spring retainer;
- and
- a spring disposed between the retainer housing and the spring retainer.
Dependencies are inferred from the claim text.