FLYING VEHICLE RETRACTABLE UNDERCARRIAGE LEG Russian patent published in 2002 - IPC

FIELD: flying vehicle alighting gears. SUBSTANCE: retractable undercarriage leg includes lever carrying the wheel which is secured on fuselage, retraction and extension hydraulic cylinder 4 with up-locks 11 and down-locks 12, cavities C and D are connected with flying vehicle hydraulic system; proposed device is also provided with gas-hydraulic shock absorber 5 whose body 6 is connected with lever. One end of rod 7 is movably fitted in body 6 of shock absorber 5. Other end of rod 7 carrying the piston is fitted in housing 10 of hydraulic cylinder 4. Cavity 9 in rod 7 is filled with gas and is used as gas chamber of shock absorber 5. Hydraulic cylinder is provided with plunger 13 whose one end is rigidly secured in housing 10 and other free end is fitted through seals in cavity 9 for motion and change of volume of shock absorber gas chamber. EFFECT: reduced overall dimension and mass. 4 dwg