| 摘要 |
<p>1. Shock absorber jack for the oleo-pneumatic suspension of an automotive vehicle for example and of the type comprising a cylinder (2) linked to the structure of the vehicle and inside which a piston (4) slides whose rod (6) is linked to an arm (17) carrying a wheel, said piston delimiting in the cylinder (2), on the side opposite to its rod (6) a high pressure chamber (7) containing oil under pressure and connected to an oleo-pneumatic accumulator through a damper (8), characterized in that it comprises a circuit for recovering the oil coming from the high pressure chamber (7) and oozing between the piston and the cylinder, this circuit comprising an annular groove (25) made in the piston (4) and communicating through a bore (26, 27) made in the said piston with an axial hole (28) made in the rod (6) of piston (4) and communicating with a ball-and-socket joint (37) through which the rod (6) of piston (4) is linked to the arm (17) carrying the wheel.</p> |
