ɍȾɄ '2, 8'& ȼɉɅɂȼ ȾɈȻȺȼɄɂ ȼɈȾɇȿȼɆȱɋɇɈȽɈ ȽȺɁɍ ɇȺ ȿɄɈɅɈȽȱɑɇȱ ɉɈɄȺɁɇɂɄɂ ȾȼɂȽɍɇȱȼ Ɂ ȱɋɄɊɈȼɂɆ ɁȺɉȺɅɘȼȺɇɇəɆ ȼ ɊȿɀɂɆȺɏ ɏɈɅɈɋɌɈȽɈ ɏɈȾɍ Ƚɭɬɚɪɟɜɢɱ ɘ.Ɏ., ɞɨɤɬɨɪ ɬɟɯɧɿɱɧɢɯ ɧɚɭɤ ɇɚɰɿɨɧɚɥɶɧɢɣ ɬɪɚɧɫɩɨɪɬɧɢɣ ɭɧɿɜɟɪɫɢɬɟɬ Ʉɢʀɜ ɍɤɪɚʀɧɚ \XJXWDUHYLFK#JPDLOFRP RUFLGRUJ ɒɭɛɚ ȯ.ȼ., ɤɚɧɞɢɞɚɬ ɬɟɯɧɿɱɧɢɯ ɧɚɭɤ ɇɚɰɿɨɧɚɥɶɧɢɣ ɬɪɚɧɫɩɨɪɬɧɢɣ ɭɧɿɜɟɪɫɢɬɟɬ Ʉɢʀɜ ɍɤɪɚʀɧɚ ƐKXED#LXD RUFLGRUJ ɋɢɪɨɬɚ Ɉ.ȼ., ɤɚɧɞɢɞɚɬ ɬɟɯɧɿɱɧɢɯ ɧɚɭɤ ɇɚɰɿɨɧɚɥɶɧɢɣ ɬɪɚɧɫɩɨɪɬɧɢɣ ɭɧɿɜɟɪɫɢɬɟɬ Ʉɢʀɜ ɍɤɪɚʀɧɚ FLUVKX#JPDLOFRP RUFLGRUJ Ɍɪɿɮɨɧɨɜ Ⱦ.Ɇ., ɤɚɧɞɢɞɚɬ ɬɟɯɧɿɱɧɢɯ ɧɚɭɤ ɇɚɰɿɨɧɚɥɶɧɢɣ ɬɪɚɧɫɩɨɪɬɧɢɣ ɭɧɿɜɟɪɫɢɬɟɬ Ʉɢʀɜ ɍɤɪɚʀɧɚ YRLQ#LXD RUFLGRUJ

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Based on the analysis of the energy capabilities of the electric starter system for starting an internal combustion engine at low ambient temperatures, it was found that this process is significantly affected by the temperature of the battery electrolyte and the degree of its charge. A technical solution has been proposed to improve the start of a cold engine, which during operation allows maintaining the optimum temperature of the battery during storage of the car at low temperatures. The description and principle of operation of the proposed system are presented. Experimental studies of the efficiency of the developed power supply system for starting a cold internal combustion engine have been carried out. The object of experimental research is the power supply system for starting a cold internal combustion engine based on a phase transition heat accumulator and a thermoelectric generator.

The article discusses the issue associated with the influence of air heating at the intake on the fuel efficiency and environmental performance of an engine with a carburetor power system when using alcohol-containing gasoline with a bioethanol content of about 36%, in the cold start, warm-up and idle modes. The use of inlet air heating is one of the promising areas for the implementation of energy-efficient technologies in road transport. The object of experimental research is a ZAZ-1102 car with a MeMZ-245 gasoline engine with a carburetor power system. The purpose of the work is to determine the effect of air heating at the intake on the energy and environmental performance of a transport engine when operating on alcohol-containing gasoline at low temperatures. The research method is experimental. As a result of the research, it was found that the use of air preheating at the intake with TAPP when using alcohol-containing gasoline with a bioethanol content of about 36% allows for reliable start-up while reducing the engine start-up time; reduce engine warm-up time by 15.8%, total fuel consumption by 34.6%; CO concentration at the beginning of heating decreases by 30.8%, CmHn concentration decreases 4.8 times. 120 seconds after warming up, the CmHn concentration when the engine is running without heating is 730 ppm, and with heating it is 370 ppm. CO concentrations are reduced from 0.37% to 0.25%. To ensure the adaptation of existing engines with a carburetor fuel supply system to the use of alcohol-containing gasolines with a bioethanol content of more than 20%, it is recommended at low temperatures to ensure an intake air temperature within 40 ... 50 ° C, which generally leads to an increase in fuel efficiency. KEY WORDS: ENGINE WITH CARBURETTOR POWER SUPPLY SYSTEM, ALCOHOL-CONTAINING GASOLINE, HEATED AIR AT THE INLET, LOW OPERATING TEMPERATURE, INCREASING ENGINE ENERGY EFFICIENCY.

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