Oleo dampers having variable orifices

Details Oleo dampers having variable orifices Oleo dampers having variable orifices

1979-07-16

1981-06-16

Reger, Duane A.

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

188289, F16F 950

Patent

active

042732204

ABSTRACT:
Oleo damper including a housing, a movable partition disposed in the housing for dividing the inside chamber of the housing into an oil compartment and a gas compartment, a damping piston disposed in the oil compartment, and a stationary partition disposed in the oil compartment between the piston and the movable partition. The stationary partition has an orifice which is cooperating with a needle carried on the movable partition. The needle has a diameter gradually decreasing toward the movable partition so that the orifice area is decreased as the movable partition is displaced away from the stationary partition.

REFERENCES:
patent: 2069791 (1937-02-01), Wallace
patent: 3400833 (1968-09-01), Powell

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