Oleopneumatic suspension with variable throttle orifices, especi

Details Oleopneumatic suspension with variable throttle orifices, especi Oleopneumatic suspension with variable throttle orifices, especi

1981-07-22

1983-09-20

Halvosa, George E. A.

Spring devices

Vehicle

Comprising compressible fluid

188288, 188289, 188317, 18832219, 244104FP, 267 6426, F16F 9342

Patent

active

044051190

ABSTRACT:
An oleopneumatic suspension with variable throttle orifices, particularly for aircraft landing gear comprising a rod (1) enclosing a pneumatic spring (2) and being fixed with respect to a piston (4) sliding in a cylinder (3), two valves (6) and (7) with permanent throttle orifices, the valve (6), which is of greater cross-section, throttling in the compression phase and the valve (7), which is of lesser cross-section, throttling in the extension phase, the suspension comprising in addition a throttle device, the section of whose orifice varies in dependence on the position and the direction of displacement of the piston (4) in the cylinder (3) so that over a given distance around a predetermined equilibrium position the orifices ensuring throttling in the compression and extension phases are of cross-sections respectively greater than the corresponding orifices over the remainder of the distance covered by the piston (4) in the cylinder (3). While primarily for use in connection with landing gear or support bogies of aircraft, the suspension is also suitable for land vehicles or for testing.

REFERENCES:
patent: 1780531 (1930-11-01), Messier
patent: 1956668 (1934-05-01), Charles
patent: 2224306 (1940-12-01), Krueger
patent: 2255181 (1941-09-01), Newton
patent: 2363485 (1944-11-01), Down
patent: 2802664 (1957-08-01), Jackson
patent: 3003595 (1961-10-01), Patriquin
patent: 3469661 (1969-09-01), Hoffmann et al.

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