FLYING VEHICLE LANDING WHEEL TURN CONTROL MECHANICAL Russian patent published in 2001 - IPC

FIELD: aeronautical engineering; flying vehicles. SUBSTANCE: mechanism includes double- acting hydraulic cylinder 1 with hollow pistons 2 and 3 arranged inside it forming hydraulic chambers A and A1 and rod whose tips 5 and 6 are movably fitted inside hollow pistons 2 and 3. Central part of rod 4 is made in form of toothed rack 7 engageable with toothed sector 8 secured on wheel shaft. Hydraulic cylinder 1 is provided with end sealing holes 9 and 10. Hollow pistons 2 and 3 are stepped in form; steps 11 and 12 of lesser diameter are received by end holes 9 and 10 of hydraulic cylinder 1 forming circular chamber Б and Б₁ connected with hydraulic system of flying vehicle. Tips 5 and 6 of rod 4 are provided with seals 13 and 14 forming chamber C and C1 inside hollow pistons 2 and 3; chambers C and C1 are connected with chambers Б and Б₁ by means of passages 15 and 16. EFFECT: reduced overall dimensions of landing gear in retracted position. 2 dwg