Noise damper for a combustion engine especially for a motor vehicle has two membranes capable of oscillation acoustically coupled to the gas tube and force coupled together

摘要

A noise damper for a combustion engine, especially for a motor vehicle, comprises an inlet (2) and a downstream outlet (3) membrane capable of oscillation and acoustically coupled to the gas and noise transmission tube (5). A forced coupling device (4) links the membranes and transmits oscillation from the inlet to the outlet membrane.