NL2025358B1 - A soundproofing system for a vehicle - Google Patents

A soundproofing system for a vehicle

Info

Publication number
NL2025358B1
NL2025358B1 NL2025358A NL2025358A NL2025358B1 NL 2025358 B1 NL2025358 B1 NL 2025358B1 NL 2025358 A NL2025358 A NL 2025358A NL 2025358 A NL2025358 A NL 2025358A NL 2025358 B1 NL2025358 B1 NL 2025358B1
Authority
NL
Netherlands
Prior art keywords
vehicle
soundproofing
layer
sound absorbing
cover layer
Prior art date
Application number
NL2025358A
Inventor
Gontier Mathieu
De Roover Paul
Brasseur Bruno
De Wilde Peter
Original Assignee
Recticel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Recticel filed Critical Recticel
Priority to NL2025358A priority Critical patent/NL2025358B1/en
Priority to EP21718144.5A priority patent/EP4135996A1/en
Priority to PCT/EP2021/059956 priority patent/WO2021209618A1/en
Application granted granted Critical
Publication of NL2025358B1 publication Critical patent/NL2025358B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0861—Insulating elements, e.g. for sound insulation for covering undersurfaces of vehicles, e.g. wheel houses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2274/00—Thermoplastic elastomer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles

Abstract

“A soundproofing system for a vehicle” A soundproofing system (2) for a vehicle in particular for soundproofing a passenger compartment thereof. The system comprises a stack of layers which include a first cover layer (11) which is substantially air- impermeable; a second cover layer (12), and a first (14) and a second 5 sound absorbing layer (15) which are both arranged between the first cover layer (11) and the second cover layer (12). The first and the second cover layers have a low areal weight. The acoustic performance of the light weight soundproofing system is enhanced by providing an intermediate substantially air-impermeable barrier layer (16) in between the first (14) 10 and the second sound absorbing layer (15) and by using a first sound absorbing layer (14) which has a high air flow resistance, namely an air flow resistance which is higher than 3000 N.s/m3. Figure 3b
NL2025358A 2020-04-16 2020-04-16 A soundproofing system for a vehicle NL2025358B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL2025358A NL2025358B1 (en) 2020-04-16 2020-04-16 A soundproofing system for a vehicle
EP21718144.5A EP4135996A1 (en) 2020-04-16 2021-04-16 A soundproofing system for a vehicle
PCT/EP2021/059956 WO2021209618A1 (en) 2020-04-16 2021-04-16 A soundproofing system for a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2025358A NL2025358B1 (en) 2020-04-16 2020-04-16 A soundproofing system for a vehicle

Publications (1)

Publication Number Publication Date
NL2025358B1 true NL2025358B1 (en) 2021-10-26

Family

ID=74095944

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2025358A NL2025358B1 (en) 2020-04-16 2020-04-16 A soundproofing system for a vehicle

Country Status (3)

Country Link
EP (1) EP4135996A1 (en)
NL (1) NL2025358B1 (en)
WO (1) WO2021209618A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710126A1 (en) 2005-04-04 2006-10-11 Rieter Technologies AG Sealed thin multi-layer sound absorber
EP1899949A1 (en) 2005-07-07 2008-03-19 Faurecia Automotive Industrie Soundproofing assembly, use for soundproofing enclosures, and method for making same
WO2009068804A1 (en) * 2007-11-12 2009-06-04 Faurecia Automotive Industrie Sound-proofing assembly having a porous decoration function
US20150034414A1 (en) * 2012-07-04 2015-02-05 Nishikawa Rubber Co., Ltd. Sound insulation material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710126A1 (en) 2005-04-04 2006-10-11 Rieter Technologies AG Sealed thin multi-layer sound absorber
EP1899949A1 (en) 2005-07-07 2008-03-19 Faurecia Automotive Industrie Soundproofing assembly, use for soundproofing enclosures, and method for making same
WO2009068804A1 (en) * 2007-11-12 2009-06-04 Faurecia Automotive Industrie Sound-proofing assembly having a porous decoration function
US20150034414A1 (en) * 2012-07-04 2015-02-05 Nishikawa Rubber Co., Ltd. Sound insulation material

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Methode de la masse manquante", JOURNAL OF APPLIED PHYSICS, vol. 101, no. 12, 2007
PAOLO BONFIGLIOFRANCESCO POMPOLI: "Frequency dependent tortuosity measurement by means of ultrasonic tests", ICSV14-CAIRNS-AUSTRALIA, 2007

Also Published As

Publication number Publication date
EP4135996A1 (en) 2023-02-22
WO2021209618A1 (en) 2021-10-21

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Legal Events

Date Code Title Description
PD Change of ownership

Owner name: RECTICEL ENGINEERED FOAMS BELGIUM; BE

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: RECTICEL

Effective date: 20230201