Spark Plugs - Revision history

A123456: /* Power */

2024-04-15T03:45:38Z

Power

← Older revision		Revision as of 23:45, 14 April 2024
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	The combustion process is initiated by the spark plug which generates a high-voltage electrical spark between its electrodes. This spark ignites the compressed air-fuel mixture to start combustion. During combustion, the fuel molecules break down into smaller molecules releasing heat energy and forming combustion products such as carbon dioxide and nitrogen oxides. As combustion happens, heat is released due to the exothermic nature of the chemical reactions. This heat causes a rapid increase in pressure that drives the piston downward with a significant amount of mechanical energy. The downward motion of the piston is transmitted to the crankshaft through the connecting rod. The crankshaft, which is connected to the piston through the crank mechanism, converts the linear motion of the piston into rotational motion.		The combustion process is initiated by the spark plug which generates a high-voltage electrical spark between its electrodes. This spark ignites the compressed air-fuel mixture to start combustion. During combustion, the fuel molecules break down into smaller molecules releasing heat energy and forming combustion products such as carbon dioxide and nitrogen oxides. As combustion happens, heat is released due to the exothermic nature of the chemical reactions. This heat causes a rapid increase in pressure that drives the piston downward with a significant amount of mechanical energy. The downward motion of the piston is transmitted to the crankshaft through the connecting rod. The crankshaft, which is connected to the piston through the crank mechanism, converts the linear motion of the piston into rotational motion.

	~~[[File:image 1.jpg\|options\|Image of combustion gases being formed]]~~

	===Exhaust===		===Exhaust===

A123456: /* Power */

2024-04-15T03:44:04Z

Power

← Older revision		Revision as of 23:44, 14 April 2024
Line 41:		Line 41:

	The combustion process is initiated by the spark plug which generates a high-voltage electrical spark between its electrodes. This spark ignites the compressed air-fuel mixture to start combustion. During combustion, the fuel molecules break down into smaller molecules releasing heat energy and forming combustion products such as carbon dioxide and nitrogen oxides. As combustion happens, heat is released due to the exothermic nature of the chemical reactions. This heat causes a rapid increase in pressure that drives the piston downward with a significant amount of mechanical energy. The downward motion of the piston is transmitted to the crankshaft through the connecting rod. The crankshaft, which is connected to the piston through the crank mechanism, converts the linear motion of the piston into rotational motion.		The combustion process is initiated by the spark plug which generates a high-voltage electrical spark between its electrodes. This spark ignites the compressed air-fuel mixture to start combustion. During combustion, the fuel molecules break down into smaller molecules releasing heat energy and forming combustion products such as carbon dioxide and nitrogen oxides. As combustion happens, heat is released due to the exothermic nature of the chemical reactions. This heat causes a rapid increase in pressure that drives the piston downward with a significant amount of mechanical energy. The downward motion of the piston is transmitted to the crankshaft through the connecting rod. The crankshaft, which is connected to the piston through the crank mechanism, converts the linear motion of the piston into rotational motion.

			[[File:image 1.jpg\|options\|Image of combustion gases being formed]]

	===Exhaust===		===Exhaust===

A123456: /* Power */

2024-04-15T03:41:09Z

Power

← Older revision		Revision as of 23:41, 14 April 2024
Line 41:		Line 41:

	The combustion process is initiated by the spark plug which generates a high-voltage electrical spark between its electrodes. This spark ignites the compressed air-fuel mixture to start combustion. During combustion, the fuel molecules break down into smaller molecules releasing heat energy and forming combustion products such as carbon dioxide and nitrogen oxides. As combustion happens, heat is released due to the exothermic nature of the chemical reactions. This heat causes a rapid increase in pressure that drives the piston downward with a significant amount of mechanical energy. The downward motion of the piston is transmitted to the crankshaft through the connecting rod. The crankshaft, which is connected to the piston through the crank mechanism, converts the linear motion of the piston into rotational motion.		The combustion process is initiated by the spark plug which generates a high-voltage electrical spark between its electrodes. This spark ignites the compressed air-fuel mixture to start combustion. During combustion, the fuel molecules break down into smaller molecules releasing heat energy and forming combustion products such as carbon dioxide and nitrogen oxides. As combustion happens, heat is released due to the exothermic nature of the chemical reactions. This heat causes a rapid increase in pressure that drives the piston downward with a significant amount of mechanical energy. The downward motion of the piston is transmitted to the crankshaft through the connecting rod. The crankshaft, which is connected to the piston through the crank mechanism, converts the linear motion of the piston into rotational motion.


	===Exhaust===		===Exhaust===

A123456 at 03:24, 15 April 2024

2024-04-15T03:24:47Z

← Older revision		Revision as of 23:24, 14 April 2024
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	~~Claimed By Christopher Skretkowicz~~		''' Claimed by Akshaya Poonepalle Spring 2024'''
	~~Claimed By Edward Mauger Spring 2017~~
	'''Claimed ~~By Geraghty Anne Ellis Fall 2017 (Edits)~~'''
	~~Claimed By Max Jeffrey Spring 2023 (edits)~~

	This page chronicles the inner workings and hidden mechanisms involved with spark plug applications, and their integration with automotive ignition systems in the real world.		This page chronicles the inner workings and hidden mechanisms involved with spark plug applications, and their integration with automotive ignition systems in the real world.
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	[https://en.wikipedia.org/wiki/Camshaft Camshafts] are used to control when these valves(both intake and exhaust, which will be discussed later) open and close and are directly connected to the [https://en.wikipedia.org/wiki/Crankshaft crankshaft], which in short translate the reciprocating motion of the engine to rotational motion which will eventually be translated through the drivetrain to [https://itstillruns.com/car-move-5104221.html propell the vehicle forward.]		[https://en.wikipedia.org/wiki/Camshaft Camshafts] are used to control when these valves(both intake and exhaust, which will be discussed later) open and close and are directly connected to the [https://en.wikipedia.org/wiki/Crankshaft crankshaft], which in short translate the reciprocating motion of the engine to rotational motion which will eventually be translated through the drivetrain to [https://itstillruns.com/car-move-5104221.html propell the vehicle forward.]

			To expand more on this, the intake valve opening is timed to occur at the end of the exhaust stroke and at the beginning of the intake stroke. In engines nowadays, the intake valve is operated by a camshaft which has lobes that push against the valve to lift it.

			After this, a vacuum is created by the piston descending. This vaccum combined with the difference in pressure creates a flow of air into the cylinder through the open intake valve.

			The intake valve opening initiates the intake airflow into the combustion chamber. We control this in the engines that we make through various factors such as the engine's displacement, valve size and shape, intake manifold design, and air filter configuration.

			Overall, the goal of the intake step is to facilitate the flow of air into the combustion chamber.

	===Compression===		===Compression===

	In this stroke, the piston moves to the top of the bore, compressing the air-fuel mixture. Both intake and exhaust valves are shut to not allow for any air to escape. Compressing the mixture enables more energy to be expelled when it is ignited and generates heat, which enables the combustion process to happen more quickly after the mixture is ignited. This process follows the ideal gas law in that as pressure is increased and volume decreased, so must the temperature increase.		In this stroke, the piston moves to the top of the bore, compressing the air-fuel mixture. Both intake and exhaust valves are shut to not allow for any air to escape. Compressing the mixture enables more energy to be expelled when it is ignited and generates heat, which enables the combustion process to happen more quickly after the mixture is ignited. This process follows the ideal gas law in that as pressure is increased and volume decreased, so must the temperature increase.


	===Power===		===Power===

	During the power stroke, just before the piston reaches TDC, or top dead center (the very top of the bore), the spark plug ignites creating a combustion reaction. This explosion forces the piston downwards, and so the crankshaft continues to rotate.		During the power stroke, just before the piston reaches TDC, or top dead center (the very top of the bore), the spark plug ignites creating a combustion reaction. This explosion forces the piston downwards, and so the crankshaft continues to rotate.

			The combustion process is initiated by the spark plug which generates a high-voltage electrical spark between its electrodes. This spark ignites the compressed air-fuel mixture to start combustion. During combustion, the fuel molecules break down into smaller molecules releasing heat energy and forming combustion products such as carbon dioxide and nitrogen oxides. As combustion happens, heat is released due to the exothermic nature of the chemical reactions. This heat causes a rapid increase in pressure that drives the piston downward with a significant amount of mechanical energy. The downward motion of the piston is transmitted to the crankshaft through the connecting rod. The crankshaft, which is connected to the piston through the crank mechanism, converts the linear motion of the piston into rotational motion.

Mjeffrey8 at 03:40, 17 April 2023

2023-04-17T03:40:40Z

← Older revision		Revision as of 23:40, 16 April 2023
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	[[File:220px-Car_ignition_system.svg.png]]		[[File:220px-Car_ignition_system.svg.png]]


	Each coil in the coil pack consists of a primary winding and a secondary winding, which share a common magnetic core. Both coils are connected to the battery. Additionally, the primary is connected to the distributor and the secondary coil is connected to the spark plugs through the cap and rotor within the distributor. The secondary winding has more turns in its coil, resulting in a much higher voltage that runs through it.		Each coil in the coil pack consists of a primary winding and a secondary winding, which share a common magnetic core. Both coils are connected to the battery. Additionally, the primary is connected to the distributor and the secondary coil is connected to the spark plugs through the cap and rotor within the distributor. The secondary winding has more turns in its coil, resulting in a much higher voltage that runs through it.
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	Because the primary coil is wrapped around the secondary coil, a varying magnetic field induces an electric current to be run through the secondary coil, which in turn produces a much larger EMF due to the number of loops in the coil. This will take the inputted DC voltage (again, typically 12-24V) and output 15,000V-40,000V AC. That current is fed to the spark plugs, which have a center electrode that is isolated from grounding electrode, grounded through the spark plug casing to the engine, which shares a ground with the coil. The two electrodes have a gap between them that is set typically between .4mm and 1.7mm. A smaller gap requires less voltage from the coil, a larger gap requires more voltage from the coil. In this case, the spark plug's electrodes act as a capacitor with the air in the cylinder being a dielectric insulator. For a spark to occur, the voltage from the coil must be sufficient to cause dielectric breakdown of the air. As the current crosses the electrodes, there is a drastic raise in the temperature upwards of 60,000K, creating a small spark. When this happens, a click from the spark plug can be heard. This spark ignites the air-fuel mixture in the cylinder continuing the crankshaft motion. The distributor cap and rotor determine which cylinder receives a spark to match the firing order.		Because the primary coil is wrapped around the secondary coil, a varying magnetic field induces an electric current to be run through the secondary coil, which in turn produces a much larger EMF due to the number of loops in the coil. This will take the inputted DC voltage (again, typically 12-24V) and output 15,000V-40,000V AC. That current is fed to the spark plugs, which have a center electrode that is isolated from grounding electrode, grounded through the spark plug casing to the engine, which shares a ground with the coil. The two electrodes have a gap between them that is set typically between .4mm and 1.7mm. A smaller gap requires less voltage from the coil, a larger gap requires more voltage from the coil. In this case, the spark plug's electrodes act as a capacitor with the air in the cylinder being a dielectric insulator. For a spark to occur, the voltage from the coil must be sufficient to cause dielectric breakdown of the air. As the current crosses the electrodes, there is a drastic raise in the temperature upwards of 60,000K, creating a small spark. When this happens, a click from the spark plug can be heard. This spark ignites the air-fuel mixture in the cylinder continuing the crankshaft motion. The distributor cap and rotor determine which cylinder receives a spark to match the firing order.

			https://youtu.be/W94iksaQwUo

	===Electronic Ignition===		===Electronic Ignition===

Mjeffrey8 at 03:27, 17 April 2023

2023-04-17T03:27:32Z

← Older revision		Revision as of 23:27, 16 April 2023
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	Claimed By Edward Mauger Spring 2017		Claimed By Edward Mauger Spring 2017
	'''Claimed By Geraghty Anne Ellis Fall 2017 (Edits)'''		'''Claimed By Geraghty Anne Ellis Fall 2017 (Edits)'''
			Claimed By Max Jeffrey Spring 2023 (edits)

	This page chronicles the inner workings and hidden mechanisms involved with spark plug applications, and their integration with automotive ignition systems in the real world.		This page chronicles the inner workings and hidden mechanisms involved with spark plug applications, and their integration with automotive ignition systems in the real world.

Mjeffrey8 at 03:27, 17 April 2023

2023-04-17T03:27:01Z

← Older revision		Revision as of 23:27, 16 April 2023
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	Back inside the engine, the exhaust valve closes and the intake stroke begins again.		Back inside the engine, the exhaust valve closes and the intake stroke begins again.

	[[File:Exhaust_system.jpg]] https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.pinterest.nz%2Fpin%2F289848925995277025%2F&psig=AOvVaw0odtXBCYdqaz8iT3G1Ji3H&ust=1681788112139000&source=images&cd=vfe&ved=0CBAQjRxqFwoTCKi_xIv7r_4CFQAAAAAdAAAAABAb		[[File:Exhaust_system.jpg]]


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	[http://www.ngk.com.au/spark-plugs/technical-information/spark-plug-anatomy-construction Spark Plug Anatomy]		[http://www.ngk.com.au/spark-plugs/technical-information/spark-plug-anatomy-construction Spark Plug Anatomy]

			https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.pinterest.nz%2Fpin%2F289848925995277025%2F&psig=AOvVaw0odtXBCYdqaz8iT3G1Ji3H&ust=1681788112139000&source=images&cd=vfe&ved=0CBAQjRxqFwoTCKi_xIv7r_4CFQAAAAAdAAAAABAb
	==References==		==References==

Mjeffrey8 at 03:24, 17 April 2023

2023-04-17T03:24:34Z

← Older revision		Revision as of 23:24, 16 April 2023
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	Back inside the engine, the exhaust valve closes and the intake stroke begins again.		Back inside the engine, the exhaust valve closes and the intake stroke begins again.

	[[File:Exhaust_system.jpg]]		[[File:Exhaust_system.jpg]] https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.pinterest.nz%2Fpin%2F289848925995277025%2F&psig=AOvVaw0odtXBCYdqaz8iT3G1Ji3H&ust=1681788112139000&source=images&cd=vfe&ved=0CBAQjRxqFwoTCKi_xIv7r_4CFQAAAAAdAAAAABAb

Gellis9 at 23:24, 28 November 2017

2017-11-28T23:24:19Z

← Older revision		Revision as of 19:24, 28 November 2017
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	[[File:Spark_plug_problem-page-001.jpg\|400px]]		[[File:Spark_plug_problem-page-001.jpg\|400px]]

	[[File:Spark_plug_problem-page-002.jpg\|~~400px~~]]		[[File:Spark_plug_problem-page-002.jpg\|200px]]

	==Connectedness==		==Connectedness==

Gellis9 at 23:23, 28 November 2017

2017-11-28T23:23:46Z

← Older revision		Revision as of 19:23, 28 November 2017
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	c) Find the potential difference for a separation of 0.050 in.		c) Find the potential difference for a separation of 0.050 in.

	[[File:Spark_plug_problem-page-001.jpg]]		[[File:Spark_plug_problem-page-001.jpg\|400px]]

	[[File:Spark_plug_problem-page-002.jpg]]		[[File:Spark_plug_problem-page-002.jpg\|400px]]

	==Connectedness==		==Connectedness==