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AssigneeVolvo Car Corporation
InventorsPeter Sandberg, Mats Laurell, Niklas Löfgren
Estimating the term…
An exhaust after treatment system for a vehicle includes an exhaust outlet pipe, having a first end that is connectable to a vehicle engine, for receiving exhaust gases from said vehicle engine, and having an outlet opening at a second end, arranged to eject the outlet gases, a catalytic converter, connected to the exhaust outlet pipe; and an electric heater element which is in heat conducting contact with the catalytic converter and adapted for pre-heating the catalytic converter. The heater element is positioned downstream of the catalytic converter with respect to the first end. Upon the vehicle being started, the heater element is switched on and gases are flowed from the second end, in the direction of the first end of the exhaust outlet pipe, through the catalytic converter for a pre-set period of time prior to passing exhaust gases from the engine towards the outlet opening at the second end.
An exhaust after treatment system for a vehicle, comprising:
A method of pre-heating a catalyst in an exhaust after treatment system, comprising a combustion engine with an outlet connected at a first end to a first exhaust outlet pipe section, a catalytic converter, a heater element and a second outlet pipe section having an outlet opening at a second end, the heater element being placed downstream of first pipe section when seen in a flow direction of the exhaust gases when the engine is running, the method comprising, prior to ignition of the engine, activating the heater element and flowing gases from the second outlet pipe section along the heater element and the catalytic converter into the first outlet pipe section.
Dependencies are inferred from the claim text.