SU832094A1 - I.c. engine operation method - Google Patents

Description

(54) WORKING METHOD FOR INTERNAL COMBUSTION ENGINE

one

The invention relates to mechanical engineering, in particular to engine-building, in particular to methods for operating an internal combustion engine.

There is a method of operating an internal combustion engine by injecting into the combustion chamber a mixture with an airflow excess factor1 ,, {, 1 and into the prechamber of a mixture with an air excess factor of ф4 1 1, compressing the mixture, dividing the mixture in the combustion chamber into two parts, igniting the mixture in the prechamber from the spark plug and the successive burning of both parts of the mixture in the combustion chamber 1.

However, the known method provides for the inlet of a homogeneous lean mixture into the combustion chamber and dividing it into two parts, resulting in the combustion of one part of the mixture adjacent to the prechamber proceeds at low temperatures, which reduces the efficiency of ignition and combustion of the other part of the mixture remote from the prechamber and as a result, it increases the toxicity of the treated gases.

The purpose of the invention is to reduce the VOx of the treated gases.

The goal is achieved by the fact that part of the mixture of the combustion chamber adjacent to the prechamber is additionally fed with a mixture with an air excess factor (where ° C ,, p is the coefficient of air excess in the combustion chamber;

оС, ф - coefficient of excess air in the prechamber.

The drawing shows the engine that implements the described method.

The engine contains a cylinder 1 with a piston 2, the head 3 of cylinder 1,

equipped with inlet valves 4 and 5; a combustion chamber 6 formed by the bottom of the piston 2, the walls of the cylinder 1 and the head O and divided into two cavities 7 and 8 by punches on the bottom

the piston 2 and the head 3, when the piston is in the upper dead center, and the prechamber 9, equipped with a Vision valve 10 and a candle 11 are caught and communicated with the combustion chamber 6 during

the help of the flare channel 12. Cavity 7 and B while the piston 2 is in the top dead center is connected through the channel 13..

The proposed method is carried out in the following way.

Claims (1)

The method of operation of the internal combustion engine by admitting a mixture into the combustion chamber with an excess air coefficient _s > 1 and into the prechamber of the mixture with an excess air coefficient oCgp <<1, compressing the mixture, dividing the mixture in the combustion chamber into two parts, igniting the mixture in the prechamber from the spark plug and sequential 15 burning out both parts of the mixture in the combustion chamber, characterized in that, in order to reduce the toxicity of the exhaust gases, the part of the combustion chamber mixture adjacent to the 20 pre-chambers is additionally fed with a mixture with a coefficient of excess Ear SSC, '<, wherein - the air excess ratio in the combustion chamber; 25 q "- coefficient of excess air in the prechamber.