DISTRIBUTED ENRICHMENT OF THE AIR CHARGE OF THE DIESEL ENGINES OF TRUCKS AND TRACTORS WITH LIQUID ACTIVATORS
To intensify the working process of diesel engines of automotive equipment, improve power, fuel and economic and environmental performance, a distributed method of enrichment of air charge in the intake cycle of 10-20% dose of liquid activator (gasoline, alcohol, kerosene, etc.) is proposed. To implement this method, an electronic system of distributed enrichment of the diesel air charge containing a filter, an electric pump, electromagnetic injectors, a ramp, a pressure regulator, a fuel consumption sensor (a mass flow meter of motor fuel), a phase sensor and an electronic control unit (ECU) has been developed. The general structure of the main units of the system and the principle of their operation are described in the article. The formulas for programming the ECU controlling the operation of electromagnetic fields are given. The results of experimental studies found that under the distributed enrichment of the air charge of the tractor diesel D-243-648, depending on the dose of the activator and the load-speed mode of operation, the cyclic supply of the activator can be from 1 mg/cycle to 13 mg/cycle, while the duration of the control pulses generated by the ECU varies from 0.27 m/s to 3.5 m/s. The developed system provides high-quality distribution of the activator-air mixture on the diesel cylinders in the intake stroke and automatic dosage of the activator depending on the load and speed modes of the engine.