Apparatus for controlling friction between leaf springs of a lam

Details Apparatus for controlling friction between leaf springs of a lam Apparatus for controlling friction between leaf springs of a lam

1982-05-18

1984-06-05

Stoner, Jr., Bruce H.

Spring devices

Vehicle

Leaf

267 9R, 267 18, 280718, B60G 1102

Patent

active

044524358

ABSTRACT:
An apparatus for controlling friction between the leaf springs of a laminated leaf spring assembly comprises a clamp mounted on the laminated leaf spring assembly for clamping the assembly in the direction of its thickness, and a hydraulic cylinder urging the laminated leaf spring assembly against a supporting member of the clamp. A return spring having a number of initially coned disc springs is disposed in a rod chamber of the hydraulic cylinder. The pressure of a pressurized fluid supplied into a head chamber of the hydraulic cylinder is controlled by a control valve. The operating pressure of the control valve is controlled by detecting the variations in predetermined factors of a body to be supported and supplying signals to the control valve in accordance with the variations.

REFERENCES:
patent: 3294390 (1966-12-01), Warmkessel
patent: 4022449 (1977-05-01), Estorff

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