Invention Grant
- Patent Title: Acoustically effective wheel house covering for vehicles
- Patent Title (中): 汽车声学有效的车轮罩
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Application No.: US10545541Application Date: 2004-04-13
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Publication No.: US07448468B2Publication Date: 2008-11-11
- Inventor: Hans Rudolf Czerny , Christian Gnädig , Herbert Vollmert , Albert Kallenberg
- Applicant: Hans Rudolf Czerny , Christian Gnädig , Herbert Vollmert , Albert Kallenberg
- Applicant Address: DE Leverkusen
- Assignee: Carcoustics Tech Center GmbH
- Current Assignee: Carcoustics Tech Center GmbH
- Current Assignee Address: DE Leverkusen
- Agency: Collard & Roe, P.C.
- Priority: DE10332172 20030715
- International Application: PCT/EP2004/003876 WO 20040413
- International Announcement: WO2005/007458 WO 20050127
- Main IPC: B64F1/26
- IPC: B64F1/26

Abstract:
The invention relates to an acoustically effective wheel house covering for vehicles, i.e. a wheel house covering which can reduce transmission of splash water noises in the passenger compartment of the vehicle and which can absorb the sound of rolling tires on a roadway, which wheel house covering comprises several layers of material. In order to improve the sound-absorbing effect of such wheel house coverings, it is proposed that the wheel house covering is formed of at least three air-permeable sandwiched layers of material (6, 9, 10) comprising a first textile material layer (6) facing the wheel housing, with the air permeability of said first textile material layer at a test pressure of 1 mbar ranging from 15 to 60 l/m2s, and with the air permeability of a second textile material layer (10) arranged between the first (6) and third (9) material layers at a test pressure of 1 mbar ranging from 100 to 1500 l/m2s, wherein the third material layer (9) is a textile material layer facing the tire, with the air permeability of said third material layer at a test pressure of 1 mbar ranging from 20 to 200 l/m2s.
Public/Granted literature
- US20060144627A1 Acoustically effective wheel house covering for vehicles Public/Granted day:2006-07-06
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