Method for heating exhaust
AssigneeToyota Jidosha Kabushiki Kaisha
InventorKenichi Tsujimoto
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Abstract
A method according to the present invention heats exhaust introduced to an exhaust emission purifier by injecting fuel into an exhaust passage through a fuel addition valve toward a heat generating portion of a glow plug disposed in the exhaust passage located upstream of the exhaust emission purifier, and then igniting the fuel. In the method, a rate of the fuel injected through the fuel addition valve which directly contacts the heat generating portion is set to between 8% and 55%.
Claims8
A method for heating exhaust introduced to an exhaust emission purifier by injecting fuel into an exhaust passage through a fuel addition valve toward a heat generating portion of an ignition device disposed in the exhaust passage located upstream of the exhaust emission purifier, and then igniting the fuel, the method comprising:
- setting a rate of the fuel injected through the fuel addition valve which directly contacts the heat generating portion to between 8% and 55%.
Dependencies are inferred from the claim text.