Shock absorber for aircraft landing gear
AssigneeMessier-Bugatti
InventorsMichel Derrien, Bernard Guyot
Life of this patent
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Abstract
The invention relates to a shock absorber of the type comprising a cylinder and a sliding rod, together with a moving disk that defines a bottom hydraulic chamber that communicates via a diaphragm with a top hydraulic fluid chamber that is adjacent to a pressurized gas chamber formed in the top of the cylinder. According to the invention, a self-contained linear actuator is disposed coaxially inside the sliding rod, being interposed between the moving disk and a lower abutment secured to said sliding rod, independent control means being also provided to control the linear actuator, such that when said means are engaged they enable the landing gear to be extended when the aircraft is stationary on the ground.
Claims10
A shock absorber for aircraft landing gear, the shock absorber comprising a cylinder and a rod sliding inside said cylinder, together with a moving disk delimiting a bottom hydraulic fluid chamber which communicates via a diaphragm with a top hydraulic fluid chamber adjacent to a pressurized gas chamber formed in the top of the cylinder, wherein a self-contained linear actuator is disposed coaxially inside the sliding rod, being interposed between the moving disk and a bottom abutment secured to said sliding rod, independent control means also being provided to control said linear actuator, which when engaged serves to extend the landing gear while the aircraft is stationary on the ground.
Dependencies are inferred from the claim text.