F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
267/74
F16F 9/34 (2006.01) B60G 15/14 (2006.01) F16F 9/08 (2006.01) F16F 9/50 (2006.01) F16F 9/516 (2006.01)
Patent
CA 1301788
-22- ABSTRACT OF THE DISCLOSURE An air spring for motor vehicles to absorb road shocks includes first and second axially spaced end members with an intervening flexible sleeve forming a fluid pressure chamber therebetween. An improved two-way damping valve connects the pressure chamber to a fluid reservoir and provides damping for the air spring by restricting fluid flow in one direction, either into or out of the pressure chamber, without materially effecting the fluid flow in the opposite direction. The valve includes a flexible diaphragm formed of reinforced rubber having slots which provide one or more flaps. The diaphragm preferably is mounted on a rigid annular washer having a predetermined size center opening forming a damping orifice. The flaps are drawn automatically into the washer opening to restrict the fluid flow through the orifice when the fluid moves in one direction, with the flaps moving away from the orifice to permit free movement of the fluid therethrough when the fluid is moving in an opposite direction. In another embodiment the damping valve is mounted in a strut-type fluid shock absorber combined with an air spring.
557217
Firestone Tire & Rubber Company (the)
Geno Wayne H.
Swabey Ogilvy Renault
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