An exhaust emission control device of an internal combustion engine includes a fuel supply unit provided in a fuel supply passage, for supplying a reducing agent directly to a NOx trap catalytic converter; an addition pressure detection unit (42) for detec...

There is provided an apparatus that estimates the NOx adsorption amount, comprising a NOx trap catalyst (22) that is disposed in an exhaust passage (20) of an engine, for adsorbing NOx in exhaust gases during lean operation and releasing and reducing the a...

The outlet duct extending outward from the air cleaner case is also extended inward into the air cleaner case with the same inner diameter such that the length of the part extending into the air cleaner is 10% to 25% of the axial length of the air cleaner ...

The impact shock absorbing structure has a protector including a front underrun protector attached to the body frame of the vehicle by means of brackets, the structure being strong enough against the impact shock and flexible to lessen the impact shock in ...

An NOx catalyst 17 for selectively reducing NOx in exhaust gas by adsorbing ammonia is provided at an exhaust system of an engine 1, ammonia or urea water is supplied to the NOx catalyst by reducing agent supplying means 29, a consumption amount of ammonia...