1. The ignition system is digital controlled in centrifugal spark advance , simple in construction and is able to satisfy the demand of all kinds of engine' s ignition system.

2. This is called spark advance: The faster the engine speed, the more advance is required.

3. The distributor spark advance arm was milled from a solid piece of brass.

4. The results showed that the adjustment by spark advance angle on the idling speed was notable, thus, CMAC controller is an effective approach for controlling engine idling speed.

5. The engine spark advance is an important factor in quality control of automobile distributors.

6. Spark advance angle:Change the spark advance angle , by analysis the combustion process and emission, find out the best value of the spark advance angle finally.

7. The brass distributor housing was completed and the spark advance arm seen above is now attached with two small screws.

8. A new type of centrifugal spark advance device is adopted in model FD663 contactless distributor.

9. In the device the spring rate is a key factor for ensuring precise spark advance.

10. Finally the calibration on a WF4C27F-E gasoline engine is performed, and the MAP graphs of the volumetric efficiency and the spark advance angle are obtained.

11. The characteristic in the field of A/F closed loop control is discussed, and the conception of primary spark advance angle set is introduced.

12. We produce different type of Timing advance processors that change the OEM spark advance ,[sentence dictionary] thus optimising the engine operation when LPG or CNG is used.

13. The major technologies used include increasing compression ratio, changing spark advance angle and using intake pulse turbo-charging.

14. 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.

15. This paper presents a nonlinear autoregressive exogenous (NARX)model to approximate dynamics of crankshaft speed with the mass of the idle feeding fuel and the spark advance.