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1. (WO1997019263) ACOUSTIC-INSULATION DEVICE USING SOUND-ABSORBING ELEMENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/019263 International Application No.: PCT/EP1996/003548
Publication Date: 29.05.1997 International Filing Date: 10.08.1996
Chapter 2 Demand Filed: 12.04.1997
IPC:
F02B 77/13 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
77
Component parts, details, or accessories, not otherwise provided for
11
Thermal or acoustic insulation
13
Acoustic insulation
Applicants:
FILTERWERK MANN + HUMMEL GMBH [DE/DE]; D-71631 Ludwigsburg, DE (AllExceptUS)
FÜSSER, Rolf [DE/DE]; DE (UsOnly)
Inventors:
FÜSSER, Rolf; DE
Agent:
VOTH, Gerhard; Filterwerk Mann + Hummel GmbH D-71631 Ludwigsburg, DE
Priority Data:
195 43 495.122.11.1995DE
Title (DE) EINRICHTUNG ZUR DÄMMUNG VON GERÄUSCHABSORBIERENDEN ELEMENTEN
(EN) ACOUSTIC-INSULATION DEVICE USING SOUND-ABSORBING ELEMENTS
(FR) DISPOSITIF D'INSONORISATION A ELEMENTS ABSORBANT LE BRUIT
Abstract:
(DE) Es wird eine Einrichtung zur Dämmung von geräuschabsorbierenden Elementen, insbesondere Brennkraftmaschine beschrieben. Eine solche Brennkraftmaschine ist mit einer Kapselung versehen, welche geräuschabsorbierende Elemente aufweist. Es sind ferner labyrinthbildende Elemente vorgesehen. Außerdem ist Absorptionsmaterial unterschiedlicher Dicke längs des Schallweges angeordnet.
(EN) Described is an acoustic-insulation device using sound-absorbing elements, in particular for internal-combustion engines. The invention calls for the engine to be surrounded by an enclosure fitted with sound-absorbing elements. Labyrinth-forming elements are also fitted. In addition, absorption material of varying thickness is fitted along the path travelled by the sound.
(FR) L'invention a pour objet un dispositif d'insonorisation à éléments absorbant le bruit, en particulier pour moteur à combustion interne. Un tel moteur est entouré d'une enveloppe munie d'éléments absorbant le bruit. Il est en outre prévu d'utiliser des éléments formant des labyrinthes. De plus, les parcours sonores sont garnis d'un matériau absorbant d'épaisseur variable.
Designated States: BR, CA, CN, CZ, JP, KR, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP0862686JP2000502157 KR1019990067691