<?xml version="1.0"?>
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	<id>https://eh.hajes.org/history/ignition_delay?feed=atom</id>
	<title>ignition delay - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://eh.hajes.org/history/ignition_delay?feed=atom"/>
	<link rel="alternate" type="text/html" href="https://eh.hajes.org/history/ignition_delay"/>
	<updated>2026-04-16T17:29:54Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.33.1</generator>
	<entry>
		<id>https://eh.hajes.org/index.php?title=ignition_delay&amp;diff=673&amp;oldid=prev</id>
		<title>Eh-admin at 09:17, 28 December 2021</title>
		<link rel="alternate" type="text/html" href="https://eh.hajes.org/index.php?title=ignition_delay&amp;diff=673&amp;oldid=prev"/>
		<updated>2021-12-28T09:17:54Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 09:17, 28 December 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[ignition delay|Ignition Delay]] aka [[ID]] (Abbreviation for &amp;#039;&amp;#039;&amp;#039;I&amp;#039;&amp;#039;&amp;#039;gnition &amp;#039;&amp;#039;&amp;#039;D&amp;#039;&amp;#039;&amp;#039;elay) &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;is an concept in internal combustion engine that measures &lt;/del&gt;a &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;lag &lt;/del&gt;between [[SOI]] and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;start &lt;/del&gt;of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;combustion process&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[ignition delay|Ignition Delay]] aka [[ID]] (Abbreviation for &amp;#039;&amp;#039;&amp;#039;I&amp;#039;&amp;#039;&amp;#039;gnition &amp;#039;&amp;#039;&amp;#039;D&amp;#039;&amp;#039;&amp;#039;elay) &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;refers to &lt;/ins&gt;a &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;time frame:&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;In &lt;/del&gt;[[&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;TDi&lt;/del&gt;]] &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;engines usual &lt;/del&gt;[[&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;ignition delay&lt;/del&gt;]] &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;is about 5° crankshaft angle at cruise speeds &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;partial load&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;In &lt;/del&gt;cold engine it &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;could &lt;/del&gt;be 10° &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;crankshaft angle or just 2&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;5° crankshaft angle at &lt;/del&gt;full load.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* diesel engines - &lt;/ins&gt;between [[SOI]] and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;self-ignition &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;fuel mix inside the engine cylinder&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Usual &lt;/ins&gt;[[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;ignition delay&lt;/ins&gt;]] &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is considered to be 5° &lt;/ins&gt;[[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;CsR&lt;/ins&gt;]]&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;varies with cylinder temperature/pressure&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;With &lt;/ins&gt;cold engine &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and partial loads, &lt;/ins&gt;it &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;may &lt;/ins&gt;be &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;as high as &lt;/ins&gt;10°. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;In an engine with optimal operational temperature and &lt;/ins&gt;full load&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, [[ignition delay]] may be as low as 2° [[CsR]].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* petrol engines - it takes to fully ignite the mixture with a spark plug. Typically, 15-35° [[BTDC]] depending on the engine speed&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[ECU]] compensates for various engine conditions.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[ECU]] compensates for various engine conditions.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:automotive]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:automotive]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key humanica-ehdb_:diff::1.12:old-511:rev-673 --&gt;
&lt;/table&gt;</summary>
		<author><name>Eh-admin</name></author>
		
	</entry>
	<entry>
		<id>https://eh.hajes.org/index.php?title=ignition_delay&amp;diff=511&amp;oldid=prev</id>
		<title>Eh-admin at 18:30, 11 June 2020</title>
		<link rel="alternate" type="text/html" href="https://eh.hajes.org/index.php?title=ignition_delay&amp;diff=511&amp;oldid=prev"/>
		<updated>2020-06-11T18:30:31Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 18:30, 11 June 2020&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ignition Delay is an concept in internal combustion engine that measures a lag between [[SOI]] and start of combustion process.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[ignition delay|&lt;/ins&gt;Ignition Delay&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]] aka [[ID]] (Abbreviation for &amp;#039;&amp;#039;&amp;#039;I&amp;#039;&amp;#039;&amp;#039;gnition &amp;#039;&amp;#039;&amp;#039;D&amp;#039;&amp;#039;&amp;#039;elay) &lt;/ins&gt;is an concept in internal combustion engine that measures a lag between [[SOI]] and start of combustion process.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In [&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;https://en.wikipedia.org/wiki/Turbocharged_direct_injection &lt;/del&gt;TDi] engines usual ignition delay is about 5° crankshaft angle at cruise speeds and partial load. In cold engine it could be 10° crankshaft angle or just 2.5° crankshaft angle at full load.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In [&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/ins&gt;TDi&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/ins&gt;] engines usual &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[&lt;/ins&gt;ignition delay&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]] &lt;/ins&gt;is about 5° crankshaft angle at cruise speeds and partial load. In cold engine it could be 10° crankshaft angle or just 2.5° crankshaft angle at full load.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;https://en.wikipedia.org/wiki/Electronic_control_unit &lt;/del&gt;ECU] compensates for various engine conditions.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/ins&gt;ECU&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/ins&gt;] compensates for various engine conditions.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[Category:automotive]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key humanica-ehdb_:diff::1.12:old-214:rev-511 --&gt;
&lt;/table&gt;</summary>
		<author><name>Eh-admin</name></author>
		
	</entry>
	<entry>
		<id>https://eh.hajes.org/index.php?title=ignition_delay&amp;diff=214&amp;oldid=prev</id>
		<title>Eh-admin: Created page with &quot;Ignition Delay is an concept in internal combustion engine that measures a lag between SOI and start of combustion process.  In [https://en.wikipedia.org/wiki/Turbocharged...&quot;</title>
		<link rel="alternate" type="text/html" href="https://eh.hajes.org/index.php?title=ignition_delay&amp;diff=214&amp;oldid=prev"/>
		<updated>2019-05-25T15:48:26Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;Ignition Delay is an concept in internal combustion engine that measures a lag between &lt;a href=&quot;/SOI&quot; title=&quot;SOI&quot;&gt;SOI&lt;/a&gt; and start of combustion process.  In [https://en.wikipedia.org/wiki/Turbocharged...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Ignition Delay is an concept in internal combustion engine that measures a lag between [[SOI]] and start of combustion process.&lt;br /&gt;
&lt;br /&gt;
In [https://en.wikipedia.org/wiki/Turbocharged_direct_injection TDi] engines usual ignition delay is about 5° crankshaft angle at cruise speeds and partial load. In cold engine it could be 10° crankshaft angle or just 2.5° crankshaft angle at full load.&lt;br /&gt;
&lt;br /&gt;
[https://en.wikipedia.org/wiki/Electronic_control_unit ECU] compensates for various engine conditions.&lt;/div&gt;</summary>
		<author><name>Eh-admin</name></author>
		
	</entry>
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