Brakes – Internal-resistance motion retarder – Valve structure or location
Patent
1997-09-02
2000-07-11
Butler, Douglas C.
Brakes
Internal-resistance motion retarder
Valve structure or location
188280, 1882825, 188317, F16F 949
Patent
active
060858761
ABSTRACT:
A shock absorber utilizes a single flexing disc assembly includes a flexing disc which is capable of performing the flexing disc function normally required for allowing the passage of fluid between the two sides of a shock absorber while also providing the blow off function. The flexing disc is backed by a ridge formed on a spring seat. The ridge defines a ring that is concentric with the central long axis of the piston rod. Under normal rebounding conditions, the pressure of rebounding damping fluid builds to the point that the flexing disc is opened somewhat by flexing to allow normal bleedthrough. However, in the event that the rebound pressure builds to a higher, predetermined value, the valve flexes to an extreme degree against the ridge formed on the spring seat. In this manner, the ring acts as a fulcrum, and a quantity of damping fluid is allowed to pass thereby until normal rebound pressure values are reached.
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Butler Douglas C.
Tenneco Automotive Inc.
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