JPS55104528A - Noise absorbing structure for atuomobile engine - Google Patents
Noise absorbing structure for atuomobile engineInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1979
- 1979-02-02 JP JP1030379A patent/JPS55104528A/en active Pending
Cited By (9)
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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