AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
7th Edition
ISBN: 9780357096789
Author: ERJAVEC
Publisher: CENGAGE L
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Chapter 26, Problem 3SA
To determine
The engine operating conditions that most affect the ignition timing requirements.
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Name the engine operating conditions thatmost affect ignition timing requirements.
! What are engine parameters affecting ignite timing?
Explain the influence of engine speed upon the ignition delay.
Chapter 26 Solutions
AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
Ch. 26 - Explain how voltage is induced in a permanent...Ch. 26 - Explain why dwell time is important to ignition...Ch. 26 - Prob. 3SACh. 26 - Explain how the plugs fire in a two-plug-per-coil...Ch. 26 - Why is high voltage needed to establish a spark...Ch. 26 - Prob. 6SACh. 26 - Modern ignition cables contain fiber cores that...Ch. 26 - Explain the components and operation of a...Ch. 26 - True or False? The spark plug wire is eliminated...Ch. 26 - True or False? A spark plug with two ground...
Ch. 26 - Prob. 1MCCh. 26 - Which of the following is a function of all...Ch. 26 - Reach, heat range, and air gap are all...Ch. 26 - The magnetic field surrounding the coil in a...Ch. 26 - Which of the following electronic switching...Ch. 26 - Technician A says that a magneto resistive sensor...Ch. 26 - While discussing ignition systems: Technician A...Ch. 26 - While discussing ignition timing requirements:...Ch. 26 - While discussing secondary voltage: Technician A...Ch. 26 - Prob. 5ASRQCh. 26 - In El systems using one ignition coil for every...Ch. 26 - While discussing EI systems: Technician A says...Ch. 26 - While discussing El systems: Technician A says...Ch. 26 - Technician A says the switching device controls...Ch. 26 - While discussing spark plugs: Technician A says...
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- It represents the net power output of the engine at the crankshaft. * Your answer If the fuelair ratio is proper and ignition timing is correct, the combustion process should be completed just after center at the beginning of the power stroke. * our answer The ignition time varies from 20 to 35 degrees before the top dead center to ensure complete combustion when the piston is slightly past the top quiet center position. TRUE OR FALSE? * Your answerarrow_forwardConsider the following statements relevant to the ignition system of SI engine: 1. Too small a dwell angle will lead to the burning of condenser and contact points. 2. Too small a dwell angle will result in misfiring. 3. Too large a dwell angle will result in burning of condenser and contact points. 4. Too large a dwell will result in mistiring. Which of these statements are correct?arrow_forwardTask 8 - Induction Systems In order for combustion to take place an induction system is required to feed fuel and air into the cylinder of an engine. To improve efficiency and performance spark ignition (SI) engines are now adopting compression ignition (CI) engine technology by injecting fuel directly into the cylinder just before the point of ignition however these engines still require an air induction system. Carburettors: before fuel injection technology had been fully developed carburettors (carbs) were used to create a fuel/air ratio at different engine speeds and loads. A cold start facility was also fitted albeit manually operated. The demand for more performance has meant the fixed choke carb' was no longer suitable. More complex carbs' were developed (twin choke) as well as variable choke (constant depression) carbs which used engine vacuum (during throttle opening) to vary the size of choke according to operating requirements.arrow_forward
- While discussing ignition timing requirements: Technician A says that more advanced timing is desired when the engine is under a heavy load. Technician B says that more advanced timing is desired when the engine is running at high engine speeds. Who is correct?arrow_forwardDiscuss about pros and cons of each type of ignition turrets. Explain what is dwell Angle and importance of it to engine operation. Explain how emission controlling is done in two types of ignition systems discussed here. Explain the working of vacuum advancer unit Discuss about pros and cons of each type of ignition turrets. Explain what is Hall Effect, and explain how it woks What are your thoughts about each type’s emission controlling? Why do you think DIS system replaced Distributor type ignition systems?arrow_forward20. Technician A says that an ignition system must generate sufficient voltage to force a spark across the spark plug gap. Technician B says that the ignition system must time the arrival of the spark to coincide with the movement of the engine's pistons and vary it according to the operating conditions of the engine. Who is correct? O a. Technician A O b. Technician B c. Both A and B O d. Neither A nor Barrow_forward
- Draw a labelled schematic diagram of a coil ignition system for a Sl engine and briefly describe its working principle.arrow_forwardWhen diagnosing engine management system faults, under what circumstances would the single trigger event on an oscilloscope be used? (10 - 20 words)arrow_forward( deeply explain all point of question)arrow_forward
- I need parts 8, 9, and 10 answered pertaining to the print provided and the set of sequence operations. Note: If you can not answer all 3 parts, leave it for another tutor please, thank you.arrow_forwardDetermine the following: a. Type of engine b. Number of strokes c. Manner of ignitionarrow_forwardWrite the names of all ignition systems used in automobiles. Briefly explain the structural features, working principle and differences of each system.arrow_forward
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