Reverse flow heat exchanger for exhaust systems

F - Mech Eng,Light,Heat,Weapons – 01 – N

Patent

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F01N 3/02 (2006.01) F01N 5/02 (2006.01)

Patent

CA 2648962

An exhaust system includes a reverse flow heat exchanger having a plate separating an intake chamber and an exit chamber, each chamber having an inlet and an outlet located at opposing ends to allow flow therethrough. The plate can include a vane connected to the end of the plate in the vicinity of an inlet or an outlet. The vane is configured to reduce resistance to fluid flow near the intake chamber inlet. The exhaust system includes a heating manifold, such as a combustion chamber, configured to receive an exhaust stream from the intake chamber, further heat the exhaust stream, and return the exhaust stream to the exit chamber. Embodiments of the system can be configured to additionally perform as a catalytic converter and/or a muffler.

L'invention concerne un système d'échappement qui comprend un échangeur thermique à flux inversé équipé d'une plaque séparant une chambre d'entrée et une chambre de sortie, chaque chambre comprenant un entrée et une sortie situées à des extrémités opposées afin de permettre l'écoulement. La plaque comprend une ailette reliée à l'extrémité de la plaque à proximité d'une entrée ou d'une sortie. Le système d'échappement comprend un collecteur de chauffage, tel qu'une chambre de combustion, conçue de manière à recevoir un flux d'échappement de la chambre d'entrée, puis de manière à chauffer ce flux d'échappement, et à le renvoyer vers la chambre de sortie. Certains modes de réalisation de ce système peuvent en outre être configurés de manière à fonctionner comme un convertisseur catalytique et/ou un silencieux.

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