Closure valve for pistons of self-regulating hydraulic devices

Details Closure valve for pistons of self-regulating hydraulic devices Closure valve for pistons of self-regulating hydraulic devices

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 1/22 (2006.01) F16D 25/12 (2006.01)

Patent

CA 2123116

2123116 9408148 PCTABS00032 The closure valve comprises a passage body (10) consisting of a truncated portion (14) which is coupled at its extremity of smaller diameter to a cylindrical portion (15) whose free end is joined to the internal extremity of the rod (3) of the device (D), and which also consists of a closure body (12) coaxial with said rod (3) and freely sliding on said cylindrical portion (15). The axial orifice (20) of the closure body (12) has at its extremity facing the passage body (10) a closure seat (21) of progressively increasing amplitude and sized correspondingly to the closure seal (11) of the passage body (10). The configuration of the closure seat (21) and of the closure seal (11) cause the progressive closure of the valve (VC) when the rod (3) is actuated in a traction mode, thus enabling, during the closure, the passage of liquid fluid (F) between both half-chambers (SC1, SC2) of the main body (1). Application to the motor vehicle industry.

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