Sound generator for a system for influencing exhaust noise of a motor vehicle

US9416700B2 · kind B2 · utility

Assignee

• Eberspächer Exhaust Technology GmbH · DE

Inventors

• Thomas Nording · Eßlingen, DE
• Thomas SCHLICHT · Eßlingen, DE
• Konrad Klausa · Deizisau, DE
• Frank Sauter · Munderkingen, DE

Key dates

• Filing date: Dec 10, 2014
• Grant date: Aug 16, 2016
• Expiry date: Dec 10, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L55/0333
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A sound generator, for a system for influencing sound waves propagating through an exhaust system of a vehicle driven by an internal combustion engine, includes an enclosure comprised of an upper shell and a lower shell. A bell mouth, supported by the lower shell and penetrating the lower shell, is configured for a fluid communication with the exhaust system. A loudspeaker is disposed in the enclosure and supported by the bell mouth. The lower shell of the enclosure supports the upper shell of the enclosure. The bell mouth is solely supported by the lower shell of the enclosure. The lower shell may include at least one air-tight feed-through for a control wire connected to the loudspeaker and/or at least one pressure equalizing valve. An anti-sound system is provided that includes the sound generator and a vehicle is provided with the anti-sound system.