Abstract
On the basis of analysis of the features of intra-cylinder catalysis during the coating of the combustion chamber surface by the catalytic layer, of combustion kinetics and experimental studies, an attempt was made to disclose the mechanism of positive fuel-ecological effects in diesel engines with direct injection of fuel. Acceleration of catalytic reactions is ensured by adsorption of reagents on the surface of the catalyst, action on the force field of the catalyst and on active particles. Enhancement of the catalytic effect can be achieved by changing the properties of the catalyst, coating technology, the optimal combination of the velocity of the charge, the angle of dispersion of the fuel jet and the shape of the combustion chamber. The characteristics of the heat release rate determined as a result of processing the indicator diagrams of a single-cylinder diesel engine when working with a uncoated piston and with a piston having a catalytic coating on the surface of a MnxOy-based chamber allowed to confirm the positive catalysis effect and determine the combustion periods at which this effect manifests itself.
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