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INCREASE OF ATOMISATION ENERGY OF COMPRESSION IGNITION ENGINES

Authors: O. Klyus , P. Rajewski


Abstract:

Meeting the requirements set for internal combustion engines in terms of reducing the emission of carbon dioxide and nitrogen oxides is related to the organisation of the working process, which should be considered in the form of changes the combustion chamber design and fuel injection characteristics. For compression-ignition engines in operation, it is not possible to change the combustion chamber construction, while fuel atomisation processes can be adjusted with slight modifications in the construction of atomising elements. This paper presents a proposal to increase the atomisation energy of atomised fuel by using a de Laval nozzle while changing the geometry of the atomiser needle. Laboratory tests of the atomizer designed in this way show an increase in the energy of the injected fuel in the form of acoustic emission of the atomization process by about 10%.

Keywords: diesel engines; fuel injector; de Laval nozzle; fishing cutters; reduce energy consumption.

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