Catalytic converter for the catalytic treatment of exhaust gas

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

Patent

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Details

IPC codes

F01N 3/28 (2006.01) B01D 53/94 (2006.01) F02B 1/04 (2006.01)

Type

Patent

Patent number

CA 2067972

Description

52 ABSTRACT The catalytic converter (1) has a casing (3) with an inlet (3d) and an outlet (3e) and a gas-permeable catalyst element (7) which is arranged in the casing (3) and has an exhaust gas entry surface (7a). A guide surface (15a) which faces the orifice of the inlet (31), is a distance away from its edge and makes an angle of preferably at least 60° and, for example, 90° with the stated axis (5) is present in the casing. The inlet (3d) has an inner surface with a cylindrical or slightly conical inner surface section (3g) which, in the orifice region of the inlet (3d), is continuously connected to a counter- surface (3i) opposite the guide surface (15a) by a transition surface section (3h) which extends in an arc-like manner towards the inner space of the housing in a section through the axis (5) of the inlet (3d). The exhaust gas flowing through the inlet (3d) can be deflected by the guide surface (15a) with little pressure loss and can then flow into the element (7), uniformly distributed over the exhaust gas entry surface (7a) of the said element.

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