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1. The air / fuel ratio on a weight basis also suggests the Intermediate character of oil between natural gas and coal.

2. The changing air fuel ratio control strategy is adapted to assured combustion control and store enough hot blest in the burning time for the hot blast stove.

3. The variations of lower heating value, theoretical air fuel ratio and combustion potential of natural gas fuel were investigated according to the variation of natural gas composition in China.

4. Combined with control characteristics of engine air fuel ratio, the CMAC controller which is self adaptive to compensate fuel injection volume is studied.

5. By optimizing BF operation, fuel ratio and operational energy consumption were constantly lowered.

6. As a result, a more even air - fuel ratio is maintained.

7. For air fuel ratio signal of a gasoline engine, there exist transmission delay, which affects the control accuracy of air fuel ratio using directive air fuel ratio sensor signals.

8. Air fuel ratio was adjusted by step motor, and there is no noise.

9. A nearly constant air - fuel ratio is maintained by the main metering system from part - to - wide - open throttle.

10. Accurate air fuel ratio control is the key element for fuel economy, low emissions and good driveability of spark ignition(SI) engine.

11. Also, these conversion costs remain constant for any gas / coal fuel ratio.

12. Temperature hysteresis quality of the wax-type thermal element is the major factor to affecting Automatic Starting Valve regulating air fuel ratio.

13. The stable-vacuum mixer designed by this way is able to control air fuel ratio in confromity with the variations of engine load and ensures to operate safely and reliably.

14. Engine power, fuel consumption and exhaust emission all depend on accuracy of the air fuel ratio.

15. Realizing furnace optimum control is based on combustion control, and that combustion control key is air fuel ratio control.

16. Then basic calibration such as ECU I/O calibration, idle speed calibration, cold start calibration, ignition advance calibration, air fuel ratio calibration, boost pressure calibration are conducted.

17. The results show that the multi-time ignition can improve ignition reliability, especially when ignition timing is too advance or too late, or air fuel ratio is far from the best ratio of ignition.

18. DME HCCI engine could only work within a limited range of speed and load under a limited air fuel ratio.sentence dictionary

19. Gas generator set adopts electric-control carburetor, which adjusts air fuel ratio automatically in a closed loop to meet variational composition of gas fuel.

20. The Control strategy based on the CMAC neural network and varying gain compensation has high accuracy and self-adaptive ability in engine air fuel ratio control.

21. The result showed that the advantages offered by the catalytic combustor is that catalytic combustion can be carried out over a wide air: fuel ratio and at low temperature with high heat efficiency.

22. The combustion control techniques for reheating furnace are in order to search the optimal air fuel ratio, to improve the control precision of the temperature and the velocity.

23. The construction and principle of a device for feedback control of air fuel ratio in NISSAN model L20 engine are presented in this paper.

24. A proportional LPG and air mixer is developed to control air fuel ratio, which is better than conventional venturi mixer.

25. Based on the first firing cycle analysis, the effects of air fuel ratio, environmental temperature, spark advance angle and battery voltage on LPG engine's FFC are tested.

26. In the trouble diagnosis of automobile, the wave form of voltage for oxygen sensor demonstrates if the practical value is near the theoretical value for air fuel ratio.

27. For the combustion of dry coal, the results with varying air fuel ratio are similar to those for the combustion of high moisture coal.