Device for noise configuration in a motor vehicle
AssigneeDaimlerChrysler AG
InventorsMarcus Hofmann, Roudolf Starobinski, Hans Striebel
Life of this patent
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Abstract
A device for noise configuration in a motor vehicle has a hollow body which is divided into at least two spaces. One space is connected to a gas-carrying part of an internal combustion engine arranged in the motor vehicle, and the other space is coupled acoustically to an interior and/or to an engine space of the motor vehicle and/or to the space surrounding the motor vehicle. The hollow body is divided into the two spaces by an essentially acoustically inactive wall. A vibrational element, which extends into both spaces, is arranged within the hollow body.
Claims59
Device for noise configuration in a motor vehicle, comprising:
- at least one hollow body which is divided into at least two spaces, one space being connected to a gas-carrying part of an internal combustion engine arranged in the motor vehicle, and the other space being coupled acoustically to at least one of an interior of the motor vehicle, an engine space of the motor vehicle, and a space surrounding the motor vehicle,
- an essentially acoustically inactive wall, wherein the hollow body is divided into the two spaces by the essentially acoustically inactive wall;
- and
- a vibrational element which extends into each of the two spaces.
Noise control system for a motor vehicle comprising:
- a hollow body including first and second hollow body spaces,
- an essentially acoustically inactive wall in said hollow body separating the first and second hollow body spaces from one another, and
- vibration transmitting means disposed in the hollow body and extending into both of the first and second hollow body spaces and operable to transmit sound between the spaces.
A method of controlling noise in a motor vehicle, comprising:
- communicating gaseous medium from one of an intake and an exhaust system of a vehicle internal combustion to a first hollow body space of a hollow body,
- separating said first hollow body space from a second hollow body space in said hollow body by an essentially acoustically in active wall in said hollow body, and
- transmitting vibrations from the gaseous medium in said first hollow body space to said second hollow body space by way of a vibration transmitting means disposed in the hollow body and extending into both the first and second hollow body spaces.
Dependencies are inferred from the claim text.