| 摘要 |
The present invention provides an exhaust purification device for an engine, comprising: an ammonia supply system including an ammonia supply injector for supplying ammonia to a combustion chamber and a control unit for controlling the ammonia supply injector, and a NOx purification system provided in an exhaust passage and including a Selective Catalytic Reduction catalyst being able to fulfill a function for purifying NOx under the presence of the ammonia.
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