Combustion apparatus of engine

Abstract

There is disclosed a combustion device of a engine, which includes an exhaust manifold and a cylinder head. An air groove is disposed on the flange surface of the exhaust manifold. An air pump is disposed on the cylinder head in communication with an air inlet hole in the cylinder head. An air outlet hole is disposed at the back of each exhaust valve in the cylinder head. The air groove on the flange surface of the exhaust manifold is in communication with the air inlet hole in the cylinder head and the air outlet hole at the back of each exhaust valve in the cylinder head.

Description

technical field [0001] The invention relates to the combustion technology of the engine, and more specifically relates to the combustion device of the engine capable of reducing idling emission. Background technique [0002] The intake process of the engine is usually that fresh air enters the intake manifold after passing through the air filter, and then enters the combustion chamber and fuel mixed combustion through the intake manifold, and then flows into the three-way catalytic converter through the exhaust manifold for post-treatment. Finally, it is discharged through the exhaust pipe. Because the engine has a thicker gas mixture at idle speed, and the mixture of the mixture is not very uniform, resulting in poor combustion, and because the engine and exhaust temperature are relatively low at this time, the catalytic efficiency of the three-way catalytic converter is low, these factors This results in poorer engine emissions at cold start and idle. Contents of the in...

AI Technical Summary

Problems solved by technology

Because the engine has a thicker gas mixture at idle speed, and the mixture of the mixture is not very uniform, resulting in poor combustion, and because the engine and exhaust temperature are relatively low at this time, the catalytic efficiency of the three-way catalytic converter is low, these factors Causes poor engine emissions at cold start and idle

Images