Disposable thermal shield

Details Disposable thermal shield Disposable thermal shield

1995-05-30

1996-08-27

Gillner, M. L.

Acoustics

Sound-modifying means

Sound absorbing panels

181291, 181294, E04B 182

Patent

active

055503381

ABSTRACT:
The present thermal shield comprises, in essence, a dimensionally stable substrate (2) on which is disposed a sound-absorbing thermal insulating layer (3). This thermal insulating layer is provided with a protective coating (4). According to the disclosure, all layers of the thermal shield consist of a light metal, particularly of aluminum or an aluminum alloy. For acoustic reasons, the thermal insulating layer is made up of an open-pore structure, especially of aluminum wool. In a further development, the thermal insulating layer is made up of several plies, and the dimensionally stable substrate (2) is perforated. A thin protective layer (5) acting as a foil absorber is arranged between the substrate (2) and the thermal insulating layer (3). This thermal shield is utilized with preference in the automobile industry.

REFERENCES:
patent: 4709781 (1987-12-01), Scherzer
patent: 4735284 (1988-04-01), Gahlau et al.
patent: 4825974 (1989-05-01), Hoffmann et al.
patent: 4828932 (1989-05-01), Morimoto
patent: 5192624 (1993-03-01), Morimoto
patent: 5196253 (1993-03-01), Mueller et al.
"Aerogels", Proc. First Int. Symp, J. Fricke, 1985 (no month).

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