Patent ID: 8005235

Claim:
An automotive vehicle, comprising: a chassis defining an engine compartment and a longitudinally spaced passenger compartment; an engine mounted in said engine compartment and being operable to generate noise energy along a transfer path into said passenger compartment; a transverse closed box-like structure interposed between said engine compartment and said passenger compartment and having a transverse width sufficient to intercept the noise energy being transmitted from said engine to said passenger compartment along said transfer path, said box-like structure being divided into a plurality of discrete chambers by internal longitudinally extending walls; and a noise control system placed within each said chamber of said box-like structure to control the transfer of said noise energy into said passenger compartment, said noise control system including a counteracting noise generating apparatus disposed within each said chamber and being operable to produce counteracting noise energy for the generated noise energy, each said noise control system corresponding to the respective chambers of said box-like structure being operable independently of each other respective noise control system to permit at least two of said chambers to produce different results with respect to the transmission of generated noise energy.