US 12,404,015 B2
Energy absorption system for landing gear
Hemanth M N, Hassan (IN); and Basavaraj Bodki, Bangalore (IN)
Assigned to Goodrich Corporation, Charlotte, NC (US)
Filed by Goodrich Corporation, Charlotte, NC (US)
Filed on Aug. 10, 2023, as Appl. No. 18/447,935.
Claims priority of application No. 202341039006 (IN), filed on Jun. 7, 2023.
Prior Publication US 2024/0409207 A1, Dec. 12, 2024
Int. Cl. B64C 25/60 (2006.01)
CPC B64C 25/60 (2013.01) 20 Claims
OG exemplary drawing
 
1. A shock strut assembly, comprising:
a mixed fluid chamber;
a liquid chamber coupled to the mixed fluid chamber;
a metering pin having a first end and a second end and a channel formed therein extending from the first end to the second end, the first end disposed in the liquid chamber and the second disposed in the mixed fluid chamber, wherein the metering pin is tapered with the first end of the metering pin being wider than the second end of the metering pin and wherein the metering pin includes a plurality of metering flutes coupled to the channel and disposed through a sidewall of the metering pin along a length of the metering pin;
an orifice plate configured to separate the liquid chamber from the mixed fluid chamber, the orifice plate comprising a metering pin aperture configured to receive the second end of the metering pin, wherein the plurality of metering flutes defines a flow channel between the metering pin and the metering pin aperture of the orifice plate through which liquid may travel from the liquid chamber to the mixed fluid chamber in response to a shock strut moving to a compressed position from an extended position; and
a pressure relief valve fluidly coupled to the liquid chamber and the channel in the metering pin, the pressure relief valve configured to allow a flow of a fluid from the liquid chamber to the channel in the metering pin.