Hydraulically damped elastic mounting

Details Hydraulically damped elastic mounting Hydraulically damped elastic mounting

1987-11-25

1989-05-16

Kashnikow, Andres

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

248562, 267219, 277 53, F16F 1504, F16M 1300, F02F 1100

Patent

active

048303461

ABSTRACT:
A hydraulically damped elastic mounting, especially for the engines of motor vehicles. To achieve, with a straightforward and economical construction, an effective, purely hydraulic damping of long-stroke, low-frequency vibrations, and a complete absorption of acoustic, i.e. short-stroke, high-frequency vibrations, a working cylinder is filled with a low-viscosity hydraulic fluid, and a damping disk mounted on the connecting rod nearly completely spans the cross-sectional area of the working cylinder. Provided all the way around on the periphery of a damping disk is a profiled shape that seals, in a substantially contact-free manner, the annular gap between the damping disk and the inner wall of the working cylinder. The damping disk divides the working cylinder into two partial chambers that communicate with one another via at least one calibrated transfer passage.

REFERENCES:
patent: 3368807 (1968-02-01), Thrasher
patent: 4002244 (1977-01-01), Matsumoto et al.
patent: 4406463 (1983-09-01), Fabrowsky
patent: 4572490 (1986-02-01), Alciati
patent: 4610438 (1986-09-01), Eberhard et al.
patent: 4720087 (1988-01-01), Duclds et al.

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