SU1599569A1 - Method of i.c. engine operation - Google Patents

Abstract

The invention makes it possible to increase the efficient performance of an internal combustion engine by using alcohol fuels, in particular methanol, with fuel and water vapor additive as fuel. Air from the atmosphere is sucked through the air intake 10 in an amount equal to the upper concentration limit of the fuel used, and, having passed the entrance 13 of the tank 12, enters the air-lift contact zone 25, where the air is saturated with fuel and water vapor. The air / fuel mixture passes through the droplet separator 26 and is supplied through the air inlet pipe 4 through the inlet channel 2 to the cylinders of the engine 1. The heat load control valve 22 installed in the pipe 18 is controlled by the temperature sensor 23 and automatically maintains the temperature of the mixture of fuel vapor and water leaving the contact zone at 5 ... 25 ° C above the equilibrium temperature with a ratio by weight equal to 1: 4. Excess coolant from the engine cooling system using a pump 21, thermostat 20 is processed in the radiator 19 in automatic mode. The ratio of the liquid and gaseous phases in the tank 12 is balanced by the continuous feeding of the liquid phase through the level 27 regulator of the fuel / water mixture. 1 il.

Description

: The invention relates to machine building (construction, in particular, to DBS, operating ia alternative alcohol fuels, in particular, on methanol, and using water vapor, anti-knock additives.

The purpose of the invention is to increase the effective performance of the engine.

The drawing shows a diagram of a motor that implements the proposed (|; allow.

I two 1 contains at least (|) din cylinder (not shown), equipped with inlet and outlet channels 2 and 3. To the inlet channel 2, an air inlet pipe A with throttle valve 5, is made with a pipe 6, which is equipped with The throttle valve 7 and the filter 8. With the exhaust channel 3, the exhaust line 9 is connected, which contains: an air intake 10 with a filter 11. | A fuel tank 12 with a fuel / water mixture has an inlet 13 and an outlet 14, the first of which is connected to the air intake 10 and the second to the air inlet pipe 4. In the tank 12 is placed a preheater 15 of the recirculating fuel-water mixture, communicating with the jacket 16 of the engine 1 using 1 tube 17 and 18, radiator 19, ther yustat 20 and pump 21. In the nozzle 18, a control valve 2 of heat load is installed, controlled from a temperature sensor 23 that measures the temperature at the outlet of the contact zone, which is located in the recirculation pipe 24. Recirculation iruyuscha. the pipe 24 is integrated into the heater 15 and in its upper part there is an air-lift contact zone 25. In the upper part of the tank 12 a drip separator 26 is placed. The tank 12 is also connected to the level regulator 27 through the filling valve 28 and provided with a fuel-water level indicator 29 and a branch pipe 30 drain with valve 31 drain.

The described method is implemented as follows.

Before starting the internal combustion engine tank 12 at. the open filling valve 28 and the closed drain valve 31 are filled with a fuel-water mixture with a water content of not more than 25% to a predetermined working volume at the level indicator 29 and ensure its constant feed through the level control valve 27.

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Then, the engine 1 is started. At the same time, air from the atmosphere is sucked through the air intake 10 in an amount equal to the upper concentration limit of the fuel used and, having passed the entrance 13 of the tank 12, enters the air-lift contact zone 25, where the air is pressed by fuel and water vapor. Since the temperatures of the fuel-and-air mixture and air are comparable with the ambient temperature (which rarely exceeds), fuel vapors predominate in the water-air mixture obtained after the contact zone 25 compared to water vapor. The fuel / water / air mixture passes through the droplet separator of the spruce 26 and is supplied through the air intake pipe 4 through the inlet channel 2 to the cylinders of the engine 1. At that, the valve 7 in the pipe 6 is closed and extremely rich in the cylinders of the engine 1: fuel vapor. After starting, the engine 1 warms up, the temperature of the fuel / water mixture circulating through the recirculation pipe 24, due to the interaction in the heater 15 with the engine coolant 1, which is supplied to the heater 15 from the cooling jacket 16 through the heat transfer valve 18. installed in the pipe 18, is controlled from the sensor 23 of the temperature and automatically maintains the temperature of the mixture of fuel vapors and water leaving the contact zone 5-25 ° C above the equilibrium temperature at The ratio of the mixture over the mixture is 1: 4. Excess coolant cooling system of the internal combustion engine using a pump 21, thermostat 20 is worked out in the radiator 19 in automatic mode. After some time after the engine start, the air sucked through the air intake 10 and heated from the exhaust line 9, passed through the air-lift contact zone 25, contains an already greater amount of water vapor in the mixture compared to the engine starting mode, but still not 25% by weight to pairs fuel. Then the ratio of the liquid and gaseous phases in the tank 12 is balanced by continuously feeding the liquid phase through the level regulator 27 with a fuel / water mixture containing 9–25% water by weight and maintaining the temperature at the outlet of the contact zbi by 5–25 ° C above the equilibrium temperature at a ratio by mass above the mixture equal to 1: 4 using temperature sensor 23 and control valve 22. At outlet 14 of tank 12, an extremely rich mixture is obtained with a water vapor content of 25% by mass (or less than 25% of water by mass when feeding water 12 toplivovod- hydrochloric mixture with a water content of less than 25% by weight), which depletes dissolved, added air drawn from the atmosphere through the filter 8 through the conduit 6 at open throttle 7, which is opened after the engine start. The opening angle of the valve 7, and consequently the amount of air added to the air / water mixture, depends on the engine's operating mode and the type of fuel used, since air is added in the amount necessary to maintain the most optimal combustion of the fuel used.

Claims (1)

Invention Formula The method of operation of the internal combustion engine by heating the air with the heat of the exhaust gases, supplying water to the air-lift contact zone with air for the contact moistening of heated air with water vapor, maintaining the temperature difference of the liquid 1599569 and the gaseous phases at the exit from the contact zone, equal to 5 ... 25 ° C, re-circulating the liquid phase while maintaining the ratio of the liquid and gaseous phases equal to (6 ... 15): 1, evaporating the fuel, filling the cylinders with an air mixture with vapors of water and fuel, burning the fuel in this mixture, Q converting the energy of the expanding gases to the rotational energy of the shaft and removing the engine cooling heat from the coolant, characterized in that the supply chain of the engine produces a flow of water into the contact zone mn with fuel, maintain the mass ratio of water and fuel in the range (0 ... 1): 4, net 0 mix this mixture with recirculating liquid phase and coolant heat, heat the mixture, and evaporate the fuel simultaneously with moistening 5 air in the air-lift zone, the amount of air before the contact moistening is equal to the upper concentration limit of the used fuel, and the temperature of the water with fuel at the outlet of the contact zone is set at 5 ... 25 С above the equilibrium temperature mixtures of water vapor and fuel at a mass ratio of 1: 4 over the mixture, and the resulting mixture of humidified air with fuel vapors diluted before feeding into cylinders. ; atmospheric air.