Diesel engine - Revision history

Jmdonev at 18:15, 15 June 2020

2020-06-15T18:15:53Z

← Older revision		Revision as of 18:15, 15 June 2020
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	[[Category:Done 2020-01-31]]		[[Category:Done 2020-01-31]]
	[[File:Inline-four.gif\|framed\|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the ~~camshaft~~ is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]		[[File:Inline-four.gif\|framed\|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the crankshaft is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]
	<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine\|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[electric generator]]s called [[diesel generator]]s, often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>		<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine\|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[electric generator]]s called [[diesel generator]]s, often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>

Jmdonev: 1 revision imported

2020-01-31T05:10:14Z

1 revision imported

← Older revision	Revision as of 05:10, 31 January 2020
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Energy>Jmdonev at 19:56, 30 January 2020

2020-01-30T19:56:17Z

← Older revision		Revision as of 19:56, 30 January 2020
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	[[Category:Done ~~2018~~-08-03]]		[[Category:Done 2020-01-31]]
	[[File:Inline-four.gif\|framed\|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the camshaft is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]		[[File:Inline-four.gif\|framed\|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the camshaft is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]
	<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine\|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[electric generator]]s called [[diesel generator]]s, often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>		<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine\|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[electric generator]]s called [[diesel generator]]s, often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>

Jmdonev: 1 revision imported

2018-09-03T22:23:43Z

1 revision imported

← Older revision	Revision as of 22:23, 3 September 2018
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energy>Jmdonev at 21:18, 26 August 2018

2018-08-26T21:18:23Z

← Older revision		Revision as of 21:18, 26 August 2018
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	[[Category:Done 2018-06-15]]		[[Category:Done 2018-08-03]]
	[[File:Inline-four.gif\|framed\|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the camshaft is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]		[[File:Inline-four.gif\|framed\|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the camshaft is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]
	<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine\|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[~~electricity~~ generator]]s called [[diesel generator]]s, often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>		<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine\|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[electric generator]]s called [[diesel generator]]s, often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>

	==Processes==		==Processes==

Jmdonev: 1 revision imported

2018-06-25T14:30:30Z

1 revision imported

← Older revision	Revision as of 14:30, 25 June 2018
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Jmdonev at 17:03, 13 June 2018

2018-06-13T17:03:50Z

← Older revision		Revision as of 17:03, 13 June 2018
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	~~[[Category:Needs citations]]~~		[[Category:Done 2018-06-15]]
	[[Category:Done ~~2015~~-02-15]]
	[[File:Inline-four.gif\|framed\|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the camshaft is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]		[[File:Inline-four.gif\|framed\|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the camshaft is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]
	<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine\|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[electricity generator]]s called [[diesel generator]]s often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>		<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine\|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[electricity generator]]s called [[diesel generator]]s, often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>

	==Processes==		==Processes==
	===Fuel ignition===		===Fuel ignition===
	Diesel engines ignite their fuel through compression. Temperature of [[gas]] molecules ~~rises~~ when the volume decreases because of the [[ideal gas law]] (unless the gas is cooled at the same time). Diesel engines rely on this. A piston compresses the air in the cylinder (see figure 1), making it extremely hot. The diesel is then atomized in the injectors, and a mist is sprayed into the hot air. The hot air immediately ignites the fuel, providing [[ignition]].		Diesel engines ignite their fuel through compression. Temperature of [[gas]] molecules rise when the volume decreases because of the [[ideal gas law]] (unless the gas is cooled at the same time). Diesel engines rely on this. A piston compresses the air in the cylinder (see figure 1), making it extremely hot. The diesel is then atomized in the injectors, and a mist is sprayed into the hot air. The hot air immediately ignites the fuel, providing [[ignition]].<ref>"How do diesel engines work?", Explain that Stuff, 2018. [Online]. Available: https://www.explainthatstuff.com/diesel-engines.html. [Accessed: 07- Jun- 2018].</ref>

	This ignition makes the diesel burn with [[oxygen]] from the [[atmosphere]], which turns the [[chemical energy]] into increased temperature, which allows the gas to push back out on the [[piston]], see figure 1.		This ignition makes the diesel burn with [[oxygen]] from the [[atmosphere]], which turns the [[chemical energy]] into increased temperature, which allows the gas to push back out on the [[piston]], see figure 1.

	When cold, diesel engines use a heated piece of metal called a glow-plug to help ignite the diesel.		When cold, diesel engines use a heated piece of metal called a glow-plug to help ignite the diesel.<ref> "Diesel glow plug function, failure symptoms and replacement cost", Car Maintenance Tips, 2018. [Online]. Available: https://cartreatments.com/diesel-glow-plug-info/. [Accessed: 07- Jun- 2018] </ref>

	===Starting up===		===Starting up===
	Starting a diesel engine is harder than starting a gasoline engine because of how diesel engines ignite their fuel. The diesel starter motor must be strong enough to ~~force compression~~ inside the cylinders, ~~allowing for ignition. This means it is attached to the crankshaft, so as to cycle~~ the ~~pistons~~. This requires higher power draw than a traditional, spark-ignited engine, so diesel engines have more robust [[battery\|batteries]].		Starting a diesel engine is harder than starting a gasoline engine because of how diesel engines ignite their fuel. The diesel starter motor must be strong enough to compress the gas inside the cylinders, igniting the diesel and air mixture. This requires higher power draw than a traditional, spark-ignited engine, so diesel engines have more robust [[battery\|batteries]].

	==Parts of a diesel engine==		==Parts of a diesel engine==
	===Block===		===Block===
	The block is the backbone of the engine. It is a large block of metal, usually aluminum or steel ~~(Le Mans Prototype racers use an iron block{cite})~~, with holes cut into it for the cylinders.		The block is the backbone of the engine. It is a large block of metal, usually aluminum or steel, with holes cut into it for the cylinders.

	===Cylinders===		===Cylinders===
	The cylinders of an engine are where the work is done. Fuel is injected into the cylinders, where it is ignited by the ~~spark plugs, which~~ moves the pistons, doing work.		The cylinders of an engine are where the work is done. Fuel is injected into the cylinders, where it is ignited by squeezing the diesel and air together making an explosion. This explosion moves the pistons, doing work, allowing the vehicle to move forward.
	===Pistons===		===Pistons===

	[[Piston]]s are devices that slide up and down inside the cylinders. Their job is to slide in and out, connected to the crankshaft, in order to ~~turn~~ the [[~~hydrocarbon combustion\|combusting]~~] ~~diesel into work~~.		[[Piston]]s are devices that slide up and down inside the cylinders. Their job is to slide in and out, connected to the crankshaft, in order to compress the air injected to the chamber—this causes the air to heat up. The volume of air that enters the chamber is compressed about 14-25 times its original volume. <ref>"How do diesel engines work?", Explain that Stuff, 2018. [Online]. Available: https://www.explainthatstuff.com/diesel-engines.html. [Accessed: 07- Jun- 2018].</ref>

	===Camshaft===		===Camshaft===
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	This is one of the biggest differences between a diesel engine and a gasoline one. Because diesel engines ignite their fuel through compression, the starter motor must be able to cause that compression, so the engine will begin to move. This means the battery on a diesel-engined car must be more powerful than the one on a gasoline-engined car.		This is one of the biggest differences between a diesel engine and a gasoline one. Because diesel engines ignite their fuel through compression, the starter motor must be able to cause that compression, so the engine will begin to move. This means the battery on a diesel-engined car must be more powerful than the one on a gasoline-engined car.

			==For Further Reading==
			*[[Diesel vs gasoline engine]]
			*[[Diesel cycle]]
			*[[Heat engine]]
			*[[Internal combustion engine]]
			*Or explore a [[Special:Random\|random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-08-26T21:30:59Z

1 revision imported

← Older revision	Revision as of 21:30, 26 August 2015
(No difference)

J.williams at 16:53, 12 August 2015

2015-08-12T16:53:04Z

New page

[[Category:Needs citations]]
[[Category:Done 2015-02-15]]
[[File:Inline-four.gif|framed|Figure 1 A diagram of an inline four-cylinder cylinder engine. The pistons are in gray, the camshaft is in green, and the block is transparent<ref>http://auto.howstuffworks.com/engine2.htm</ref>]]
<onlyinclude>A '''diesel engine''' is a type of [[internal combustion engine|internal combustion]] [[heat engine]], powered by [[diesel]]. These engines run small [[electricity generator]]s called [[diesel generator]]s often in remote areas as well as the engines of cars and trucks (both large and small). </onlyinclude>

==Processes==
===Fuel ignition===
Diesel engines ignite their fuel through compression. Temperature of [[gas]] molecules rises when the volume decreases because of the [[ideal gas law]] (unless the gas is cooled at the same time). Diesel engines rely on this. A piston compresses the air in the cylinder (see figure 1), making it extremely hot. The diesel is then atomized in the injectors, and a mist is sprayed into the hot air. The hot air immediately ignites the fuel, providing [[ignition]].

This ignition makes the diesel burn with [[oxygen]] from the [[atmosphere]], which turns the [[chemical energy]] into increased temperature, which allows the gas to push back out on the [[piston]], see figure 1.

When cold, diesel engines use a heated piece of metal called a glow-plug to help ignite the diesel.

===Starting up===
Starting a diesel engine is harder than starting a gasoline engine because of how diesel engines ignite their fuel. The diesel starter motor must be strong enough to force compression inside the cylinders, allowing for ignition. This means it is attached to the crankshaft, so as to cycle the pistons. This requires higher power draw than a traditional, spark-ignited engine, so diesel engines have more robust [[battery|batteries]].

==Parts of a diesel engine==
===Block===
The block is the backbone of the engine. It is a large block of metal, usually aluminum or steel (Le Mans Prototype racers use an iron block{cite}), with holes cut into it for the cylinders.

===Cylinders===
The cylinders of an engine are where the work is done. Fuel is injected into the cylinders, where it is ignited by the spark plugs, which moves the pistons, doing work.
===Pistons===

[[Piston]]s are devices that slide up and down inside the cylinders. Their job is to slide in and out, connected to the crankshaft, in order to turn the [[hydrocarbon combustion|combusting]] diesel into work.

===Camshaft===
:''[[camshaft|main article]]''
A camshaft is a device that manages the timing of the engine. A camshaft's job is to regulate when fuel is let into the engine, and when exhaust is let out. This seemingly simple job can have a great effect on the performance of the engine.
===Injectors===
The purpose of a fuel injector is to atomize the fuel. This means to turn the liquid fuel into a mist, which drastically increases its surface area. This allows the fuel to combust more quickly, giving greater [[impulse]] to the piston. Fuel injectors are an improvement over carburetors because they are lower maintenance, and atomize the fuel better. Fuel injection allows for higher engine efficiency, which can lead to more power, and better gas mileage.
===Crankshaft===
:''[[crankshaft|main article]]''
The crankshaft is the most important part of the engine because it connects the parts together, and allows the engine to create power. Its purpose is to turn the linear (up and down) motion of the pistons into rotational motion. One end of the crankshaft is attached to the camshaft, via a timing belt. The other end is connected to the flywheel, which regulates the power coming out of the engine, sort of like a surge protector for your computer.
===Starter motor===
This is one of the biggest differences between a diesel engine and a gasoline one. Because diesel engines ignite their fuel through compression, the starter motor must be able to cause that compression, so the engine will begin to move. This means the battery on a diesel-engined car must be more powerful than the one on a gasoline-engined car.

==References==
{{reflist}}
[[Category:Uploaded]]