William K. Ojala - Birmingham MI Philip R. Guys - Northville MI Masumi Kawatsu - Northville MI John D. Kostun - Brighton MI
Assignee:
Ford Motor Company - Dearborn MI
International Classification:
B60K 1302 B60K 1306
US Classification:
180 683
Abstract:
A noise reduction side-branch reactive silencer for use with the air induction system of an internal combustion engine. The side-branch reactive silencer is contained within a subframe interposed between the engine and a vehicle body. The subframe is a rigid structure and forms a reactive cavity therein. The subframe has a connector for communicating the reactive cavity with the air induction system of the vehicle. The connector is positioned along the subframe in accordance with the desired attenuation frequency.