Shock absorber

Details Shock absorber Shock absorber

F - Mech Eng,Light,Heat,Weapons

16

F

267/90

F16F 9/50 (2006.01) F16F 9/348 (2006.01)

Patent

CA 1315301

- 30 - ABSTRACT OF THE DISCLOSURE A shock absorber is provided a piston stroke dependent variable shock absorbing characteristics by means of a first and second flow restriction means associated with a piston. The first and second flow restriction means are arranged in a fluid path for communicating first and second working chambers defined within a shock absorber cylindrical housing in series. The first flow restriction means associated with an orifice forming a part of the fluid path and has a predetermined relief pressure, for providing a predetermined first fixed flow restriction rate in response to a pressure difference between the first and second chambers smaller than or equal to the relief pressure and providing a second variable flow restriction rate in response to a pressure difference between the first and second chambers greater than the relief pressure. The second flow restriction means is associated with the orifice for providing a third variable flow restriction rate variable depending upon the pressure difference between the first and second chamber.

595582

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