Conical Substrate
AssigneeDENSO International America, Inc.
InventorAndre DUDA
Life of this patent
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Abstract
A catalytic converter for use in motor vehicle exhaust systems includes a housing and a catalytic substrate disposed in the housing. The housing includes a central shell fixed to an inlet end cone and an outlet end cone. The catalytic substrate includes a primary body section disposed in an internal chamber of the central shell and a secondary body section disposed in an inlet chamber of the inlet end cone. The secondary body section includes a shaped face surface that is exposed to hot exhaust gases supplied to the inlet chamber to assist in improved light-off and improved purification efficiency.
Claims19
A catalytic converter for purifying exhaust gas from an engine, comprising:
- a housing defining an inlet chamber for receiving the exhaust gas, a central internal chamber communicating with the inlet chamber, and an outlet chamber communicating with the central internal chamber for exhausting the purified gas;
- and
- a catalytic substrate having a first body section disposed within said central chamber and a second body section disposed within said inlet chamber, said second body section having a contoured inlet face surface.
A catalytic converter for purifying exhaust gases from an engine, comprising:
- a housing having a shell, an inlet end cone extending from a first end of said shell, and an outlet end cone extending from a second end of said shell, said inlet end cone defining an inlet port for receiving the exhaust gas and an inlet chamber communicating with said inlet port, said shell defining a central chamber communicating with said inlet chamber, said outlet end cone defining an outlet chamber communicating with said central chamber and an outlet port for exhausting the purified gases;
- and
- a catalytic substrate having a first body section disposed within said central chamber and a second body section disposed within said inlet chamber, wherein said second body section includes a contoured inlet face surface extending toward said inlet port.
Dependencies are inferred from the claim text.