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1. The air-fuel ratio, smoke opacity and in-cylinder pressure of MWMTBD620 diesel engine under increasing power transient operating conditions were tested by a home-made control and measurement system.

2. In order to research start air-fuel ratio of hydrogen-fueled engine, the hydrogen injection quantity and air quantity were controlled.

3. The main influence factors of the speed and air-fuel ratio and the relation curves of the unit, the structure and PID algorithm of the system are described concretely.

4. Performance test consists of the air-fuel ratio scanning test and the initiation temperature test.

5. Influence of engine performance with ignition advance and air-fuel ratio was discussed and studied in detail.

6. The regulator holds a constant air-fuel ratio from cold start - up through hot air operation.

7. Control of engine ECU to air-fuel ratio is completed by control to injection mass.

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8. The result shows that stratified scavenging reduces fuel loss during air exchange greatly lowing the fuel consumption rate and enlarging the air-fuel ratio range.

9. This article has analyzed the open flame non-oxidizing heating feature as well as the relations among the oxidation ratio of silicon steel strip, the heating speed the air-fuel ratio of the furnace.

10. The paper also introduces how to adjust the carburetor to get an ideal air-fuel ratio.

11. This paper gives an introduction about the design of an intelligent air-fuel ratio regulation subsystem based on DSP for low-caloric gas generators.

12. In this paper, problems in kiln roof, construction materials, residual heat and air-fuel ratio are described, and then suggestions are put forward for their solution.

13. AR Air Regulators in multiple burner systems, hold constant air-fuel ratio and the mixture pressure with reducing burner port area of up to 90 %.

14. In order to improve power performance, save energy, and reduce exhaust emission of the coal bed methane engine, the accuracy of air-fuel ratio must be improved.

15. For firing of the mixture in the cylinder every time spark occurs, the air-fuel ratio must lie in a fairly narrow range.

16. With the dedicated CNG control strategy and quality kits, the air-fuel ratio was well controlled in all CNG operating conditions.

17. The zirconium dioxide oxygen sensor with heater is equipped on shanghai BUICK to check the air-fuel ratio of the mixture.

18. Experimental results show that CAI combustion is notably influenced by residual gas fraction and air-fuel ratio.

19. The conclusions show that with the rise of the power increasing rate the air-fuel ratio decreased rapidly, the combustion start point delayed, the premixed combustion rate reduced.