JPS55104528A - Noise absorbing structure for atuomobile engine - Google Patents

Noise absorbing structure for atuomobile engine

Info

Publication number
JPS55104528A
JPS55104528A JP1030379A JP1030379A JPS55104528A JP S55104528 A JPS55104528 A JP S55104528A JP 1030379 A JP1030379 A JP 1030379A JP 1030379 A JP1030379 A JP 1030379A JP S55104528 A JPS55104528 A JP S55104528A
Authority
JP
Japan
Prior art keywords
fiber plate
engine
rubber layer
plate
recesses
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP1030379A
Other languages
Japanese (ja)
Inventor
Hiromi Wataya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Fiber Glass Co Ltd
Original Assignee
Asahi Fiber Glass Co Ltd
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 Asahi Fiber Glass Co Ltd filed Critical Asahi Fiber Glass Co Ltd
Priority to JP1030379A priority Critical patent/JPS55104528A/en
Publication of JPS55104528A publication Critical patent/JPS55104528A/en
Pending legal-status Critical Current

Links

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  • Superstructure Of Vehicle (AREA)

Abstract

PURPOSE: To absorb noises of engine over a wide frequency zone, by forming recesses defining respectively an independent air chamber on one surface of a high- density fiber plate, attaching a rubber layer on the other surface of said fiber plate, and fixing the fiber plate to the bonnet with the rubber layer being located on the side of engine.
CONSTITUTION: An arbitrary number of recesses 2 shaped in arbitrary forms are formed, with proper intervals, on one surface of high-density fiber plate 1 which is obtained by compressing fibrous mat into a plate form, so that these recesses 2 serve as air chambers 3. On the other hand, rubber layer 4 is attached on the other surface of fiber plate 1. Such a plate 1 is fixed to bonnet 6 by means of pins 7, in the manner that rubber layer 4 faces engine. Here, the material for fiber plate 1 uses glass wool or the like as inorganic fiber and uncured wool at the rate of 200W 800g/m2, and it is shaped into a required form by way of pressure molding at 100W 800kg/m2. With such an arrangement, it is enabled to absorb noises effectively in all of high, medium and low frequency zones.
COPYRIGHT: (C)1980,JPO&Japio
JP1030379A 1979-02-02 1979-02-02 Noise absorbing structure for atuomobile engine Pending JPS55104528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1030379A JPS55104528A (en) 1979-02-02 1979-02-02 Noise absorbing structure for atuomobile engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1030379A JPS55104528A (en) 1979-02-02 1979-02-02 Noise absorbing structure for atuomobile engine

Publications (1)

Publication Number Publication Date
JPS55104528A true JPS55104528A (en) 1980-08-11

Family

ID=11746478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1030379A Pending JPS55104528A (en) 1979-02-02 1979-02-02 Noise absorbing structure for atuomobile engine

Country Status (1)

Country Link
JP (1) JPS55104528A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463049A (en) * 1982-01-22 1984-07-31 Dr. Alois Stankiewicz Schallschluck GmbH & Co. Sound-absorbing wall-lining
JPS61113535A (en) * 1984-11-08 1986-05-31 Kasai Kogyo Co Ltd Soundproofing mechanism for trunk room
US5567922A (en) * 1991-04-26 1996-10-22 Matec Holding Ag Sound insulating vehicle body part
WO2004067935A1 (en) * 2003-01-27 2004-08-12 Rieter Technologies Ag Engine compartment partitioning layer
US8061475B2 (en) * 2009-09-18 2011-11-22 Nichias Corporation Soundproof cover and method for producing the same
US20140050886A1 (en) * 2011-03-23 2014-02-20 Autoneum Management Ag Moulded multilayer lining for heat and sound insulation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463049A (en) * 1982-01-22 1984-07-31 Dr. Alois Stankiewicz Schallschluck GmbH & Co. Sound-absorbing wall-lining
JPS61113535A (en) * 1984-11-08 1986-05-31 Kasai Kogyo Co Ltd Soundproofing mechanism for trunk room
US5567922A (en) * 1991-04-26 1996-10-22 Matec Holding Ag Sound insulating vehicle body part
US5741390A (en) * 1991-04-26 1998-04-21 Rieter Automotive (International) Ag Sound-insulating vehicle body part
WO2004067935A1 (en) * 2003-01-27 2004-08-12 Rieter Technologies Ag Engine compartment partitioning layer
JP2006513925A (en) * 2003-01-27 2006-04-27 リーター テクノロジーズ アー ゲー Engine compartment partition layer
US8061475B2 (en) * 2009-09-18 2011-11-22 Nichias Corporation Soundproof cover and method for producing the same
US20140050886A1 (en) * 2011-03-23 2014-02-20 Autoneum Management Ag Moulded multilayer lining for heat and sound insulation
US9586380B2 (en) * 2011-03-23 2017-03-07 Autoneum Management Ag Moulded multilayer lining for heat and sound insulation

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