Mount having hydraulic damping action and membrane therefor

Details Mount having hydraulic damping action and membrane therefor Mount having hydraulic damping action and membrane therefor

1986-06-11

1988-02-23

Halvosa, George E. A.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

13751215, 137855, 180300, 180902, 248562, 248636, F16F 1300

Patent

active

047265736

ABSTRACT:
A membrane for a mount having hydraulic damping action has a peripheral bead and opposite surfaces extending inwardly therefrom. A nonrectilinear cut through the opposite surfaces of the membrane from at least proximate the bead of the membrane delimits at least one tongue from the membrane which projects either centrally of the membrane or toward a thinner portion of the membrane. The mount for the membrane has working and equalizing spaces filled with an hydraulic fluid and arranged to vary in volume in response to relative movement between pedestal and mounting bracket portions of the mount. A throttle opening between the working and equalizing spaces throttles fluid flow therebetween in response to the pressure differential therebetween from the volume variation for hydraulic damping. Annular projections on the mounting bracket hold the membrane in the mount by its peripheral bead so that the membrane separates the working and equalizing spaces and bulges in response to the pressure differentials therebetween.

REFERENCES:
patent: 2688979 (1954-09-01), Kendrick
patent: 3114579 (1963-12-01), Isenberger
patent: 3314600 (1967-04-01), Hadley
patent: 4159091 (1979-06-01), LeSalver et al.

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