Four-stroke petrol engine inner-vat sprinkler

Abstract

A water-spray device for use in the cylinder of four-stroke gasoline engine, which comprises electric control unit, water tank, water pump controlled by the electric unit, water track and water-spray nozzle. The water-outlet of the water pump connects with the water-inlet of the water track by a water tube. The water-spray nozzle communicates respectively with the water-outlet of the water track, water tank and the water pump by water tube, the water-spray mouth of the water-spray nozzle is inserted into the combustion chamber of the gasoline engine. Advantages: water is sprayed in the cylinder at some stage of combustion stroke of engine, the temperature is controlled above combustion point of gasoline so as not to effect gasoline to continuous combust; water is gasified instantaneously to increase cylinder pressure so as to increase effective torque and power output; water is gasified to apply work to consume large amount of heat energy so as to reduce the load and power consumption of lubrication system; the temperature in cylinder is reduced so as to reduce burst risk and gasoline engine can use higher compression ratio to economize gasoline; the reduced combustion temperature in cylinder can inhibit the generation of oxynitride so as to reduce the exhaust of harmful matter to benefit environment protection.

Description

technical field [0001] The invention belongs to an accessory of a combustion engine, and relates to a water spray device in a cylinder of a 4-stroke gasoline engine. Background technique [0002] In the prior art, when the gasoline engine is working, the air and gasoline mixture are generally sucked into the cylinder, or gasoline is sprayed into the cylinder to mix during the intake stroke, before the end of the compression stroke, the mixture is ignited with a spark plug, and the mixture burns, and the cylinder The temperature of the gas inside rises, the pressure increases, and the piston moves to do work. Since the working medium of the gasoline engine only includes combustion products of gasoline and air, and no other expansion medium is added, the temperature in the cylinder is high, and harmful substances such as nitrogen and nitrogen compounds are easily generated; the cooling system has a heavy burden; the possibility of knocking increases, which is not conducive to ...

AI Technical Summary

Problems solved by technology

Since the working medium of the gasoline engine only includes combustion products of gasoline and air, and no other expansion medium is added, the temperature in the cylinder is high, and harmful substances such as nitrogen and nitrogen compounds are easily generated; the cooling system has a heavy burden; the possibility of knocking increases, which is not conducive to realizing more Large compression ratio; high exhaust gas temperature, high temperature resistance and strength requirements for the material of the exhaust passage near the combustion chamber; a large amount of heat energy is dissipated through the exhaust and cooling system, not only is not converted into power, but consumes power (consumed by use) more powerful fans and pumps)

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