Camshaft - Revision history

Jmdonev: 1 revision imported

2018-09-03T22:23:33Z

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energy>Jmdonev at 22:19, 31 July 2018

2018-07-31T22:19:45Z

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	[[Category:Done ~~2015~~-07-01]]		[[Category:Done 2018-08-03]]
	[[File:EccentricCam.gif\|framed\|right\|~~Figure~~ 1. A rotating cam.<ref>MsC Technology. (2011). ''Eccentric Cam'' [Online]. Available: http://msc-technology.wikispaces.com/Mechanical+Design#Cams</ref>]]		[[File:EccentricCam.gif\|framed\|200px\|right\|Fig. 1. A rotating cam.<ref>MsC Technology. (2011). ''Eccentric Cam'' [Online]. Available: http://msc-technology.wikispaces.com/Mechanical+Design#Cams</ref> ]]
	<onlyinclude>A camshaft is a rod which rotates and slides against a piece of machinery in order to turn rotational motion into linear motion.</onlyinclude> This change of motion is accomplished by the camshaft moving further and closer from the axis of rotation as the camshaft is pushed by the machinery.<ref name=msc> MsC Technology. (2011). ''Mechanical Design'' [Online]. Available http://msc-technology.wikispaces.com/Mechanical+Design#Cams</ref> These moving pieces of the shaft are the [[cam]]s. The linear distance moved is called the 'throw' and can be seen in Figure 1.		<onlyinclude>A '''camshaft''' is a rod which rotates and slides against a piece of machinery in order to turn rotational motion into linear motion.</onlyinclude> This change of motion is accomplished by the camshaft moving further and closer from the axis of rotation as the camshaft is pushed by the machinery.<ref name=msc> MsC Technology. (2011). ''Mechanical Design'' [Online]. Available http://msc-technology.wikispaces.com/Mechanical+Design#Cams</ref> These moving pieces of the shaft are the [[cam]]s. The linear distance moved is called the 'throw' and can be seen in Figure 1.


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	The function of a camshaft is dependent on how a valve works and the function of the cam itself. A valve on a cylinder head consists of two basic parts, a stem and a head (see Figure 2). The head plugs the nozzle that allows fuel intake or exhaust flow and requires linear motion.<ref name=lobe> D. Fuhller. (2014). ''Camshaft FAQs: What is Lobe Separation? What are Intake and Exhaust Centerlines? (And More)'' [Online]. Available:http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref> A cam, in its simplest definition, is a mechanical link that converts rotational motion into linear motion, or vice versa.<ref name=msc /> The cams on a camshaft achieve this displacement by the rotation of a radial pattern, and a follower which moves perpendicular to the rotational axis. The cam pattern on a camshaft is non-circular with a single lobe. The follower matches the displacement of the cam as it rotates. This displacement is then translated to the stem of the valve, allowing head to rise as the lobes of the cam pass through the follower.<ref name=lobe />		The function of a camshaft is dependent on how a valve works and the function of the cam itself. A valve on a cylinder head consists of two basic parts, a stem and a head (see Figure 2). The head plugs the nozzle that allows fuel intake or exhaust flow and requires linear motion.<ref name=lobe> D. Fuhller. (2014). ''Camshaft FAQs: What is Lobe Separation? What are Intake and Exhaust Centerlines? (And More)'' [Online]. Available:http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref> A cam, in its simplest definition, is a mechanical link that converts rotational motion into linear motion, or vice versa.<ref name=msc /> The cams on a camshaft achieve this displacement by the rotation of a radial pattern, and a follower which moves perpendicular to the rotational axis. The cam pattern on a camshaft is non-circular with a single lobe. The follower matches the displacement of the cam as it rotates. This displacement is then translated to the stem of the valve, allowing head to rise as the lobes of the cam pass through the follower.<ref name=lobe />

	Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> ~~Making sure that~~ the timing is proper in a car engine is one of the simpler ways to save money and energy.		Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Insuring the timing is proper in a car engine is one of the simpler ways to save money and energy.
	[[File:Camshaft.jpg\|thumb\|~~500x280px~~\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]		[[File:Camshaft.jpg\|thumb\|500px\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]

			==For Further Reading==
			*[[Cam]]
			*[[Reciprocating engine]]
			*[[Internal combustion engine]]
			*[[Rotational energy]]
			*[[Gasoline engine]]
			*Or explore a [[Special:Random\|random page]]


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J.williams at 16:19, 25 September 2015

2015-09-25T16:19:40Z

← Older revision		Revision as of 16:19, 25 September 2015
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	Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.		Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.
	[[File:Camshaft.jpg\|~~frame~~\|500x280px\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]		[[File:Camshaft.jpg\|thumb\|500x280px\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]

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	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams at 16:19, 25 September 2015

2015-09-25T16:19:15Z

← Older revision		Revision as of 16:19, 25 September 2015
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	Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.		Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.
	[[File:Camshaft.jpg\|~~framed~~\|500x280px\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]		[[File:Camshaft.jpg\|frame\|500x280px\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]

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	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams at 16:12, 25 September 2015

2015-09-25T16:12:06Z

← Older revision		Revision as of 16:12, 25 September 2015
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	Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.		Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.
	[[File:Camshaft.jpg\|framed\|500x280px~~\|thumb~~\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]		[[File:Camshaft.jpg\|framed\|500x280px\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]

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J.williams at 16:11, 25 September 2015

2015-09-25T16:11:26Z

← Older revision		Revision as of 16:11, 25 September 2015
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	Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.		Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.
	[[File:Camshaft.jpg\|500x280px\|~~framed~~\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]		[[File:Camshaft.jpg\|framed\|500x280px\|thumb\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]

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J.williams at 16:10, 25 September 2015

2015-09-25T16:10:04Z

← Older revision		Revision as of 16:10, 25 September 2015
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	Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.		Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.
	[[File:Camshaft.jpg\|framed~~\|500x280px~~\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]		[[File:Camshaft.jpg\|500x280px\|framed\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]

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	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams at 16:09, 25 September 2015

2015-09-25T16:09:06Z

← Older revision		Revision as of 16:09, 25 September 2015
Line 11:		Line 11:

	Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.		Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.
	[[File:Camshaft.jpg\|framed\|~~500px~~\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]		[[File:Camshaft.jpg\|framed\|500x280px\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]

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	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams at 16:08, 25 September 2015

2015-09-25T16:08:28Z

← Older revision		Revision as of 16:08, 25 September 2015
Line 11:		Line 11:

	Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.		Since an automotive engine has several pistons like the piston in Figure 2, a single cam is insufficient for all of these pistons. An entire rod covered with cams must be used. This is the camshaft seen in Figure 3. Note that the precise placement of the cams along the shaft allow for precise timing of the relative valves opening and closing. This precise timing is needed since a car engine is firing at thousands of [[RPM]].<ref name=enginebasics /> Making sure that the timing is proper in a car engine is one of the simpler ways to save money and energy.
	[[File:Camshaft.jpg\|framed\|~~500x280px~~\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]		[[File:Camshaft.jpg\|framed\|500px\|center\|Figure 3. A camshaft for an inline four-cylinder engine. Notice how each set of four cams is separated, making this for a 16-valve engine.<ref>D. Fuller. (2014). ''Camshaft'' [Online]. Available: http://www.onallcylinders.com/2014/02/07/camshaft-faqs-lobe-separation-intake-exhaust-centerlines/</ref>]]

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	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-08-26T21:30:52Z

1 revision imported

← Older revision	Revision as of 21:30, 26 August 2015
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