Faw diesel engine has low ignitability.

Author : Date : 9/29/2014 2:41:00 AM

Since the water emulsion fuel that is the fuel for the China faw diesel engine has low ignitability, the variation of the engine load, that is, the variation of the fuel injection rate gives a larger influence to the ignitability, and thus white smoke is easily generated. Due to this, it is more useful to apply in application to the China faw diesel engine using such a fuel, because it can promote ignition and realize combustion with the generation of white smoke being curbed.The example including both of the fuel injection timing control means and the reduced cylinder operation control means, but even the cases without including one of them are included in the China faw

diesel engine. For example, in the China faw diesel engine including only the reduced cylinder operation control means, the supercharger , the heat exchanging means and the like may be provided as necessary. Accordingly, the description limiting the shape, quality and the like disclosed in the above is the exemplificative description to facilitate understanding, but does not intend to limit , and therefore the descriptions with the names of the components with part of the limitation or the entire limitation of their shapes, qualities and the like being removed.

The reduced-cylinder operation control means monitors the fuel injection rate signal from the fuel injection devices, and when the China faw diesel engine load is reduced and the fuel injection rate becomes the predetermined fuel injection rate Ff or lower, it outputs a fuel injection stop signal G to the fuel injection device at the side of the first bank to stop the fuel injection, and carries out one-side bank operation only at the side of the second bank. In the faw diesel engine, reduction in the China faw diesel engine load and the fuel injection rate themselves bring about unstable ignitability and possibility of generation of white smoke.

For this reason, in this embodiment, a reduced cylinder operation is performed to prevent the generation of white smoke when the fuel injection rate becomes the predetermined fuel injection rate Ff or lower, and ignitability of the water emulsion fuel is significantly reduced. In the present embodiment in which the faw diesel engine is installed in the power generation system, the faw diesel engine is completely stopped in many cases when the fuel injection rate is reduced to the predetermined fuel injection rate Ff or lower by reducing the load, and consequently, the above reduced cylinder operation is carried out in an engine stopping step.