This paper introduces the characteristic of exhausted gas from lean-burn engine and reviews the technique of purifying NO_x under lean-burn condition(especially on HC-SCR).

For the LPG engine and the independent cylinder model based on the rotary coordinate system,the lean-burn control strategy using oxygen sensor was introduced.

By the experiment,the influences of engine speed,load,compression ratio,spark advance angle and spark-plug gap on lean-burn were analyzed.

Study on catalytic conversion for lean burn automobile exhaust gases;

It was found that the Cu/sepiolite catalyst has good anti-water and thermal stable properties under lean burn conditions.

A neural network-sliding mode control scheme was presented for accurately control of the air-fuel ratio for lean burn engine in transient condition.

Analysis of lean combustion system for vehicular engine;

This paper introduces lean combustion technology in non-uniform gas inlet and direct injection gasoline engine.

The lean combustion skill put a great future in the port fuel injection system.

Experimental research on the performance of ignited biogas engines with fast burning;

In this paper by analysing the characteristics of the biogas combustion,a method of fast burning is put forward to improve the performance of the biogas engine,and a new combustion system with a fan-shaped combustion chamber was developed which is suitable to promote fast burning.

In this paper, by analysing the characteristics of biogas combustion, a method of fast burning is put forward to improve the performance of biogas enngine, and a new combustion system with Fan shaped combustion chamber is developed which is suitable to promote fast burning.