Shock absorber with improved back check and anti-dump valve mech

Details Shock absorber with improved back check and anti-dump valve mech Shock absorber with improved back check and anti-dump valve mech

1982-06-18

1984-07-17

Reger, Duane A.

Brakes

Internal-resistance motion retarder

Valve structure or location

18832217, F16F 919

Patent

active

044600739

ABSTRACT:
A shock absorber of the direct acting type for vehicles in which improved riding characteristics are obtained by providing an additional back check valve mechanism and anti-dump valve mechanism. Both valve mechanisms are normally biased in a closed position, are opened in response to an initial pressure increase and move into a second closed position when pressure conditions reach a predetermined value above the lower initial pressure increase level. The back check valve mechanism can be made responsive either to the pressure in the compression space or the rebound space. The anti-dump valve mechanism is carried by the piston and controls initial and low pressure flow between the compression space and rebound space.

REFERENCES:
patent: 4189033 (1980-02-01), Katsumori

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