Shock-absorbing actuator for fitting to landing gear of heavier-

Details Shock-absorbing actuator for fitting to landing gear of heavier- Shock-absorbing actuator for fitting to landing gear of heavier-

1993-03-26

1994-03-15

Huppert, Michael S.

Aeronautics and astronautics

Landing gear

Wheel

244104R, 244102R, B64C 2558

Patent

active

052940772

ABSTRACT:
The invention relates to a shock-absorbing actuator including a cylindrical body and a hollow rod having an annular piston. The cylindrical body includes a separator piston delimiting two hydraulic fluid chambers, one of which communicates via a distributor valve with the hydraulic circuit of the aircraft, said distributor valve being closed automatically at the end of lowering the landing gear; the annular chamber communicates via a second distributor valve with said hydraulic circuit. The distributor valves thus make it possible to extend and retract the shock-absorbing actuator. In addition, a force peak-limiting means is disposed in an extension extending beyond an end wall of the body that forms one of the abutments for the separator piston.

REFERENCES:
patent: 2554581 (1951-05-01), Levy
patent: 4273303 (1981-06-01), Somm

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