Sound damping device for oscillatory components of a motor vehic

Details Sound damping device for oscillatory components of a motor vehic Sound damping device for oscillatory components of a motor vehic

1998-01-23

2000-04-11

Dang, Khanh

Acoustics

Sound-modifying means

Housing or enclosure

181205, G10K 1104

Patent

active

060477903

ABSTRACT:
A device for damping the sound emission from oscillatory components of a fluid container of a hydraulic system, primarily in a motor vehicle. At least one vibration damping mass is coupled to the wall of a component subject to sound damping. The mass is adapted to the vibration to be damped by selection of material, shape, and/or position on the wall. For example, the mass is a rib fastened to the wall or a strip adhered to the wall. In an alternate embodiment, the container has an inner and an outer wall with a gap between them. The gap is either evacuated, filled with a sound absorbing material or ribs on the wall extend in the gap or inside the inner wall.

REFERENCES:
patent: 3134611 (1964-05-01), Iversen
patent: 3687224 (1972-08-01), Lundin
patent: 4395982 (1983-08-01), Moller
patent: 4642035 (1987-02-01), Nyquist
patent: 4835972 (1989-06-01), Tugal et al.
patent: 4860851 (1989-08-01), Krevor et al.
patent: 5180298 (1993-01-01), DiRe
patent: 5631451 (1997-05-01), Torisaka et al.
Patent Abstracts of Japan, Publication No. 09115747, Feb. 5, 1997.

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