Patent ID: 7063134
Filing Date: 2006-06-20
Classification: F01N,F28D,F28F,Y02T

Abstract:
1. A combined muffler heat exchanger apparatus comprising: a housing defining a heat transfer chamber and an acoustic attenuation chamber separated by a partition; a flow regulator comprising a metal tube extending axially through the heat transfer chamber having a first perforated portion and a second perforated portion separated by a metal restrictor plate welded to an inner wall of the metal tube, the flow regulator operative to regulate flow of a first fluid; an acoustic regulator extending axially through the acoustic attenuation chamber having a plurality of apertures operative to attenuate a magnitude of a predetermined band of acoustical frequencies associated with the first fluid; and a fluid transport tube disposed in the heat transfer chamber containing flow of a second fluid and operative to convey heat from the first fluid to the second fluid.