DE3734312A1 - SOUND-INSULATING COVER ELEMENT - Google Patents
SOUND-INSULATING COVER ELEMENTInfo
- Publication number
- DE3734312A1 DE3734312A1 DE19873734312 DE3734312A DE3734312A1 DE 3734312 A1 DE3734312 A1 DE 3734312A1 DE 19873734312 DE19873734312 DE 19873734312 DE 3734312 A DE3734312 A DE 3734312A DE 3734312 A1 DE3734312 A1 DE 3734312A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- sound
- cover element
- element according
- absorbing
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Laminated Bodies (AREA)
- Vibration Dampers (AREA)
Description
Die Erfindung geht aus von einem schalldämmenden Abdeck element nach dem gattungsbildenden Oberbegriff des Haupt anspruchs. Als derartiges Abdeckelement ist eine Abdeck haube bekannt, die als einschichtige Schale aus thermoplastischem oder duroplastischem Material besteht. Das Dämmvermögen einer solchen Schale ist gering.The invention is based on a sound-absorbing cover element according to the generic term of the main demanding A cover is used as such a cover element hood known as a single-layer shell made of thermoplastic or thermosetting material. The insulating ability of one such bowl is small.
Ziel der Erfindung ist es, ein schalldämmendes Abdeckelement zu schaffen, das dem gegenüber eine wesentlich bessere Schalldämmung ermöglicht.The aim of the invention is to create a sound absorbing cover that the compared to a much better sound insulation.
Bei dem erfindungsgemäßen schalldämmenden Abdeckelement mit den kennzeichnenden Merkmalen des Hauptanspruchs ist vor allem durch die ein großes Dämpfungsvermögen aufwei sende elastische Schicht eine erheblich verbesserte Schalldämmung erreichbar. Mit den in den Ansprüchen 2-12 aufgeführten Maßnahmen sowie den Verfahrensmerkmalen in den Ansprüchen 13-15 sind vorteilhafte Weiterbildungen und Verbesserungen des Abdeckelements nach dem Hauptanspruch erzielbar. In the sound-absorbing cover element according to the invention with the characteristic features of the main claim especially due to the high damping capacity send elastic layer a significantly improved Sound insulation achievable. With the in claims 2-12 measures listed and the procedural features in claims 13-15 are advantageous developments and improvements of the cover element according to the main claim achievable.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die Zeichnung zeigt einen schematischen Schnitt eines schalldämmenden Abdeckelementes.An embodiment of the invention is in the drawing shown and in the description below explained. The drawing shows a schematic section of a sound-absorbing cover element.
In der Zeichnung ist schematisch ein schalldämmendes Abdeckelement 10 gezeigt, das hier als Zylinderkopfhaube für Brennkraftmaschinen ausgebildet ist. Das Abdeckele ment 10 hat einen dreischichtigen Sandwichaufbau und be steht aus einer Kernschicht 11, die auf ihrer Außenseite eine Außenschicht 12 und auf ihrer Innenseite eine Innen schicht 13 aufweist.In the drawing, a soundproofing cover element 10 is shown schematically, which is designed here as a cylinder head cover for internal combustion engines. The Deckele element 10 has a three-layer sandwich structure and be consists of a core layer 11 , which has an outer layer 12 on its outside and an inner layer 13 on its inside.
Die Außenschicht 11 und/oder die Innenschicht 13 besteht aus einem duroplastischen oder thermoplastischen Kunst stoff oder statt dessen aus einer z. B. tiefgezogenen Metallfolie.The outer layer 11 and / or the inner layer 13 consists of a thermosetting or thermoplastic material or instead of a z. B. deep-drawn metal foil.
Die Kernschicht 11 ist aus einer elastischen Schicht mit großem Dämpfungsvermögen gebildet und besteht hier aus einem mit Füllstoffen gefüllten Gummi. Der Begriff "Gummi" schließt Materialien dieser Art aus Kunstgummi, Kautschuk oder Kunststoff ein, soweit diese ein dem Gummi eigenes gummielastisches Verhalten haben. Der Gummi als Teil der Kernschicht 11 ist sehr weich ausgelegt. Er hat eine sehr niedrige Shore-A-Härte. Der Füllstoff weist eine große Dichte auf, z. B. in der Größenordnung bis zu 3,8 g/cm3. Der Füllstoff besteht hier aus Bariumsulfat. Es hat sich gezeigt, daß eine so gestaltete Kernschicht 11 eine sehr gute Schalldämmung ermöglicht. The core layer 11 is formed from an elastic layer with high damping capacity and consists here of a rubber filled with fillers. The term "rubber" includes materials of this type made of synthetic rubber, rubber or plastic, insofar as these have a rubber-elastic behavior that is specific to rubber. The rubber as part of the core layer 11 is designed to be very soft. It has a very low Shore A hardness. The filler has a high density, e.g. B. in the order of up to 3.8 g / cm 3 . The filler consists of barium sulfate. It has been shown that a core layer 11 designed in this way enables very good sound insulation.
Das Abdeckelement 10 ist bei Verwendung heißhärtender Materialien im Preß- oder Spritzgießverfahren herstellbar, wobei man sich eines mit Tauchkanten versehenen Werkzeuges (sog. Eingriffswerkzeug) bedient, welches es gestattet, die drei Schichten 11, 12 und 13 des Sandwiches nach einander aufzubringen.When using thermosetting materials, the cover element 10 can be produced in the press or injection molding process, using a tool provided with plunging edges (so-called engagement tool) which allows the three layers 11, 12 and 13 of the sandwich to be applied one after the other.
Bei einer anderen Methode wird zunächst die Kernschicht 11 hergestellt. Danach werden die Außenschicht 12 und Innenschicht 13 aufgebracht. Bestehen diese aus thermo plastischem Kunststoff, so werden diese z. B. aufgespritzt oder in Folienform, z. B. in Form von Tiefziehfolien, aufgebracht.In another method, the core layer 11 is first produced. The outer layer 12 and inner layer 13 are then applied. If these consist of thermoplastic plastic, these are z. B. sprayed or in foil form, for. B. in the form of thermoforming films.
Das Abdeckelement 10, insbesondere als Zylinderkopfhaube für Brennkraftmaschinen, bewirkt eine sehr gute Schall dämmung. Bei einem anderen, nicht gezeigten Ausführungs beispiel ist das Abdeckelement 10 für andere geräusch dämmende Zwecke bestimmt, z. B. als Abdeckung im Bereich der Ölwanne oder an anderen Stellen des Motors einer Brennkraftmaschine. Auch alle übrigen Anwendungen für das schalldämmende Abdeckelement 10 liegen im Rahmen der Erfindung.The cover element 10 , in particular as a cylinder head cover for internal combustion engines, causes very good sound insulation. In another, not shown embodiment example, the cover member 10 is intended for other noise-reducing purposes, for. B. as a cover in the area of the oil pan or in other places of the engine of an internal combustion engine. All other applications for the sound-absorbing cover element 10 are also within the scope of the invention.
Claims (15)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873734312 DE3734312A1 (en) | 1987-10-10 | 1987-10-10 | SOUND-INSULATING COVER ELEMENT |
EP19880114906 EP0311797B1 (en) | 1987-10-10 | 1988-09-13 | Sound damping covering element |
ES88114906T ES2070122T3 (en) | 1987-10-10 | 1988-09-13 | SOUNDPROOFING COVERING ELEMENT. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873734312 DE3734312A1 (en) | 1987-10-10 | 1987-10-10 | SOUND-INSULATING COVER ELEMENT |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3734312A1 true DE3734312A1 (en) | 1989-04-27 |
DE3734312C2 DE3734312C2 (en) | 1991-08-08 |
Family
ID=6338053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873734312 Granted DE3734312A1 (en) | 1987-10-10 | 1987-10-10 | SOUND-INSULATING COVER ELEMENT |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0311797B1 (en) |
DE (1) | DE3734312A1 (en) |
ES (1) | ES2070122T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9213804U1 (en) * | 1992-10-13 | 1994-02-10 | M. Faist GmbH & Co KG, 86381 Krumbach | Recycle-oriented laminate element for sound insulation |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4404502C2 (en) * | 1994-02-12 | 2002-02-28 | Bosch Gmbh Robert | Sound absorbing cover |
DE19712472C2 (en) * | 1997-03-25 | 2002-07-04 | Greiner Gmbh | Process for producing a heavy layer molded part for structure-borne noise insulation |
DE102004007602B4 (en) * | 2004-02-17 | 2014-06-18 | Volkswagen Ag | Cover for an internal combustion engine of a motor vehicle |
DE102006039756A1 (en) * | 2006-08-24 | 2008-02-28 | Elringklinger Ag | Shielding component, in particular heat shield |
AT503644B1 (en) * | 2006-09-25 | 2007-12-15 | Trumpf Maschinen Austria Gmbh | Method for operating bending presses uses sensors determining restoring force on press beam, uprights and drive system and reactive force of workpiece at beam reversing position and reducing to allow rapid return of ram to upper position |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE810661C (en) * | 1948-10-02 | 1951-10-25 | Siemens & Halske A G | Sound and vibration isolating component, especially for walls or the like. |
DE2532758A1 (en) * | 1974-07-26 | 1976-02-12 | British Uralite Ltd | NOISE ABSORBING MATERIAL |
DE2818252A1 (en) * | 1978-04-26 | 1979-11-08 | Helmut Pelzer | Motor vehicle body noise suppressing panel - has outer layers of different hardness and low bulk density laminated to inner layer of foamed plastics or felt |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2658379A1 (en) * | 1976-12-23 | 1978-06-29 | Phoenix Gummiwerke Ag | INSULATION PANEL FOR SOUND AND HEAT INSULATION |
US4223073A (en) * | 1978-10-30 | 1980-09-16 | Minnesota Mining And Manufacturing Company | High-temperature damping composite |
US4303723A (en) * | 1980-02-04 | 1981-12-01 | The Goodyear Tire & Rubber Company | Sound barrier material |
US4452841A (en) * | 1982-12-20 | 1984-06-05 | The Goodyear Tire & Rubber Company | Unsupported shaped sound barrier component |
-
1987
- 1987-10-10 DE DE19873734312 patent/DE3734312A1/en active Granted
-
1988
- 1988-09-13 ES ES88114906T patent/ES2070122T3/en not_active Expired - Lifetime
- 1988-09-13 EP EP19880114906 patent/EP0311797B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE810661C (en) * | 1948-10-02 | 1951-10-25 | Siemens & Halske A G | Sound and vibration isolating component, especially for walls or the like. |
DE2532758A1 (en) * | 1974-07-26 | 1976-02-12 | British Uralite Ltd | NOISE ABSORBING MATERIAL |
DE2818252A1 (en) * | 1978-04-26 | 1979-11-08 | Helmut Pelzer | Motor vehicle body noise suppressing panel - has outer layers of different hardness and low bulk density laminated to inner layer of foamed plastics or felt |
Non-Patent Citations (1)
Title |
---|
DE-P Anm. N 10 343 II/63 c * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9213804U1 (en) * | 1992-10-13 | 1994-02-10 | M. Faist GmbH & Co KG, 86381 Krumbach | Recycle-oriented laminate element for sound insulation |
Also Published As
Publication number | Publication date |
---|---|
DE3734312C2 (en) | 1991-08-08 |
EP0311797B1 (en) | 1995-03-08 |
EP0311797A2 (en) | 1989-04-19 |
ES2070122T3 (en) | 1995-06-01 |
EP0311797A3 (en) | 1990-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |