Patent ID: 7273130
Filing Date: 2007-09-25
Classification: G10K

Abstract:
1. A noise reduction device, comprising: a housing in which a chamber is constructed and having a chamber opening constructed in a wall of the chamber and laterally arranged in relation to a gas flow, and a deflection device, which is adjustably arranged at the chamber opening so as to tilt between a first position, in which a diagonally positioned underside of the deflection device is met by the gas flow so that the underside at least partially directs the gas flow running by the chamber opening into the chamber in order to compress gas there, and a second position, in which the deflection device is positioned so that a diagonally positioned top side of the deflection device is met by the gas flow and the chamber opening is closed for the gas flow, and the underside of the deflection device directs the gas out of the chamber towards the gas flow in order to release the gas inside the chamber, thereby generating a periodically alternating pressure in the chamber.