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	<id>https://wikicars.org/index.php?action=history&amp;feed=atom&amp;title=Stirling_engines</id>
	<title>Stirling engines - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wikicars.org/index.php?action=history&amp;feed=atom&amp;title=Stirling_engines"/>
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	<updated>2026-04-24T17:34:20Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.38.4</generator>
	<entry>
		<id>https://wikicars.org/index.php?title=Stirling_engines&amp;diff=118379&amp;oldid=prev</id>
		<title>Red marquis at 11:36, 4 February 2009</title>
		<link rel="alternate" type="text/html" href="https://wikicars.org/index.php?title=Stirling_engines&amp;diff=118379&amp;oldid=prev"/>
		<updated>2009-02-04T11:36:47Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:36, 4 February 2009&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-l5&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;Originally intended as a 5-year program to evaluate the use of Stirling type engines in automobiles, due to funding shortfalls the program had to be extended to 10 years. Running from 1978 to 1988, the program evaluated a variety of engine designs, materials, and automotive testbeds. At the project&amp;#039;s conclusion, following over 20,000 combined hours of tests on three distinct engine families, the final test engine (known as the &amp;quot;Mod II&amp;quot;) had achieved a 30 percent increase in fuel economy (when compared to the standard spark ignition engine in the test vehicle) and an overall fuel efficiency of 40 percent.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;Originally intended as a 5-year program to evaluate the use of Stirling type engines in automobiles, due to funding shortfalls the program had to be extended to 10 years. Running from 1978 to 1988, the program evaluated a variety of engine designs, materials, and automotive testbeds. At the project&amp;#039;s conclusion, following over 20,000 combined hours of tests on three distinct engine families, the final test engine (known as the &amp;quot;Mod II&amp;quot;) had achieved a 30 percent increase in fuel economy (when compared to the standard spark ignition engine in the test vehicle) and an overall fuel efficiency of 40 percent.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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 style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;==External Links==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;[http://ntrs.nasa.gov/index.cgi?method=search&amp;amp;limit=25&amp;amp;offset=0&amp;amp;mode=simple&amp;amp;order=DESC&amp;amp;keywords=%22Automotive+Stirling+Engine%22%0D%0A%0D%0A| NASA Technical Reports Server search results for &amp;quot;Automotive Stirling Engine&amp;quot;]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;[http://ntrs.nasa.gov/index.cgi?method=search&amp;amp;limit=25&amp;amp;offset=0&amp;amp;mode=simple&amp;amp;order=DESC&amp;amp;keywords=%22Automotive+Stirling+Engine%22%0D%0A%0D%0A| NASA Technical Reports Server search results for &amp;quot;Automotive Stirling Engine&amp;quot;]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Red marquis</name></author>
	</entry>
	<entry>
		<id>https://wikicars.org/index.php?title=Stirling_engines&amp;diff=14753&amp;oldid=prev</id>
		<title>Jared81 at 06:19, 3 August 2006</title>
		<link rel="alternate" type="text/html" href="https://wikicars.org/index.php?title=Stirling_engines&amp;diff=14753&amp;oldid=prev"/>
		<updated>2006-08-03T06:19:00Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 06:19, 3 August 2006&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=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;A &amp;#039;&amp;#039;&amp;#039;Stirling engine&amp;#039;&amp;#039;&amp;#039; is a [&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;heat engine|&lt;/del&gt;http://en.wikipedia.org/wiki/Heat_engine] which turns a heat differential into mechanical work.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;A &amp;#039;&amp;#039;&amp;#039;Stirling engine&amp;#039;&amp;#039;&amp;#039; is a [http://en.wikipedia.org/wiki/Heat_engine&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;| heat engine&lt;/ins&gt;] which turns a heat differential into mechanical work.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;Its invention is credited to [&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Robert Stirling|&lt;/del&gt;http://en.wikipedia.org/wiki/Robert_Stirling] in the year 1816, as he was the first to patent the device. It has remained largely an engineering curiosity until modern day, with little interest in automotive usage. In 1978, however, at the direction of the United States Department of Energy (DOE), NASA was directed to investigate alternative engines under the Automotive Propulsion Research &amp;amp; Development Act (Public Law 95-238).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;Its invention is credited to [http://en.wikipedia.org/wiki/Robert_Stirling&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;| Robert Stirling&lt;/ins&gt;] in the year 1816, as he was the first to patent the device. It has remained largely an engineering curiosity until modern day, with little interest in automotive usage. In 1978, however, at the direction of the United States Department of Energy (DOE), NASA was directed to investigate alternative engines under the Automotive Propulsion Research &amp;amp; Development Act (Public Law 95-238).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;Originally intended as a 5-year program to evaluate the use of Stirling type engines in automobiles, due to funding shortfalls the program had to be extended to 10 years. Running from 1978 to 1988, the program evaluated a variety of engine designs, materials, and automotive testbeds. At the project&amp;#039;s conclusion, following over 20,000 combined hours of tests on three distinct engine families, the final test engine (known as the &amp;quot;Mod II&amp;quot;) had achieved a 30 percent increase in fuel economy (when compared to the standard spark ignition engine in the test vehicle) and an overall fuel efficiency of 40 percent.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;Originally intended as a 5-year program to evaluate the use of Stirling type engines in automobiles, due to funding shortfalls the program had to be extended to 10 years. Running from 1978 to 1988, the program evaluated a variety of engine designs, materials, and automotive testbeds. At the project&amp;#039;s conclusion, following over 20,000 combined hours of tests on three distinct engine families, the final test engine (known as the &amp;quot;Mod II&amp;quot;) had achieved a 30 percent increase in fuel economy (when compared to the standard spark ignition engine in the test vehicle) and an overall fuel efficiency of 40 percent.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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 style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;NASA Technical Reports Server search results for &amp;quot;Automotive Stirling Engine&amp;quot;|&lt;/del&gt;http://ntrs.nasa.gov/index.cgi?method=search&amp;amp;limit=25&amp;amp;offset=0&amp;amp;mode=simple&amp;amp;order=DESC&amp;amp;keywords=%22Automotive+Stirling+Engine%22%0D%0A%0D%0A]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;[http://ntrs.nasa.gov/index.cgi?method=search&amp;amp;limit=25&amp;amp;offset=0&amp;amp;mode=simple&amp;amp;order=DESC&amp;amp;keywords=%22Automotive+Stirling+Engine%22%0D%0A%0D%0A&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;| NASA Technical Reports Server search results for &amp;quot;Automotive Stirling Engine&amp;quot;&lt;/ins&gt;]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jared81</name></author>
	</entry>
	<entry>
		<id>https://wikicars.org/index.php?title=Stirling_engines&amp;diff=14751&amp;oldid=prev</id>
		<title>Jared81: created page</title>
		<link rel="alternate" type="text/html" href="https://wikicars.org/index.php?title=Stirling_engines&amp;diff=14751&amp;oldid=prev"/>
		<updated>2006-08-03T06:10:38Z</updated>

		<summary type="html">&lt;p&gt;created page&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;A &amp;#039;&amp;#039;&amp;#039;Stirling engine&amp;#039;&amp;#039;&amp;#039; is a [heat engine|http://en.wikipedia.org/wiki/Heat_engine] which turns a heat differential into mechanical work.&lt;br /&gt;
&lt;br /&gt;
Its invention is credited to [Robert Stirling|http://en.wikipedia.org/wiki/Robert_Stirling] in the year 1816, as he was the first to patent the device. It has remained largely an engineering curiosity until modern day, with little interest in automotive usage. In 1978, however, at the direction of the United States Department of Energy (DOE), NASA was directed to investigate alternative engines under the Automotive Propulsion Research &amp;amp; Development Act (Public Law 95-238).&lt;br /&gt;
&lt;br /&gt;
Originally intended as a 5-year program to evaluate the use of Stirling type engines in automobiles, due to funding shortfalls the program had to be extended to 10 years. Running from 1978 to 1988, the program evaluated a variety of engine designs, materials, and automotive testbeds. At the project&amp;#039;s conclusion, following over 20,000 combined hours of tests on three distinct engine families, the final test engine (known as the &amp;quot;Mod II&amp;quot;) had achieved a 30 percent increase in fuel economy (when compared to the standard spark ignition engine in the test vehicle) and an overall fuel efficiency of 40 percent.&lt;br /&gt;
&lt;br /&gt;
[NASA Technical Reports Server search results for &amp;quot;Automotive Stirling Engine&amp;quot;|http://ntrs.nasa.gov/index.cgi?method=search&amp;amp;limit=25&amp;amp;offset=0&amp;amp;mode=simple&amp;amp;order=DESC&amp;amp;keywords=%22Automotive+Stirling+Engine%22%0D%0A%0D%0A]&lt;/div&gt;</summary>
		<author><name>Jared81</name></author>
	</entry>
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