SHOCK ABSORBER OF RETRACTABLE LANDING GEAR OF FLYING VEHICLE Russian patent published in 1995 - IPC

FIELD: alighting gear of flying vehicles. SUBSTANCE: shock absorber has housing 1, piston 2, axle box 3 with check valve 4, floating piston 5, diaphragm 6, rod 7, plunger 11. Arranged in rod 7 is cylinder 8 provided with projection 9 and secured in bottom of rod 7 by means of thread. Projection 9 is engageable with spring-loaded spool valve 10 located between cylinder 8 and rod 7 which is provided with holes 12 shut off by spool valve 10 which has hole 13. Shock absorber has two separate gas chambers 14 and 15 and liquid chamber 16. Cylinder 8 forms in rod 7 chamber 17 which is used for supply of control pressure to spool valve 10. Axle box 3 and floating piston 5 are sealed up by means of seal 18. Shock absorber has liquid supply passages 19, 20 and 21 and charging passages 22 and 23. EFFECT: extended functional capabilities of shock absorber through making it in form of hydraulic cylinder. 2 dwg