https://wikicars.org/index.php?action=history&feed=atom&title=Variable_Displacement 2026-04-22T21:10:00Z Revision history for this page on the wiki MediaWiki 1.38.4 https://wikicars.org/index.php?title=Variable_Displacement&diff=10950&oldid=prev 2006-07-07T17:16:07Z

<p><span dir="auto"><span class="autocomment">Variable displacement technologies</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:16, 7 July 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l9">Line 9:</td> <td colspan="2" class="diff-lineno">Line 9:</td></tr> <tr><td class="diff-marker"></td><td style="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;"><div>==Variable displacement technologies==</div></td><td class="diff-marker"></td><td style="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;"><div>==Variable displacement technologies==</div></td></tr> <tr><td class="diff-marker"></td><td style="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;"><div>* [[General Motors Corporation|General Motors]] [[Cadillac V8 engine#L62 V8-6-4|V8-6-4]] ([[Cadillac (automobile)|Cadillac]])</div></td><td class="diff-marker"></td><td style="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;"><div>* [[General Motors Corporation|General Motors]] [[Cadillac V8 engine#L62 V8-6-4|V8-6-4]] ([[Cadillac (automobile)|Cadillac]])</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="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;"><div>* [[General Motors Corporation|General Motors]] [[Displacement on Demand]] (DoD)</div></td><td class="diff-marker" data-marker="+"></td><td style="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;"><div>* [[General Motors Corporation|General Motors]] [[Displacement on Demand]] (DoD<ins style="font-weight: bold; text-decoration: none;">) (GM has renamed this technology to &quot;Active Fuel Management&quot; to better get its function/purpose across to the buying public</ins>)</div></td></tr> <tr><td class="diff-marker"></td><td style="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;"><div>* [[DaimlerChrysler]] [[Multi-Displacement System]] (MDS) (for [[Chrysler Corporation|Chrysler]])</div></td><td class="diff-marker"></td><td style="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;"><div>* [[DaimlerChrysler]] [[Multi-Displacement System]] (MDS) (for [[Chrysler Corporation|Chrysler]])</div></td></tr> <tr><td class="diff-marker"></td><td style="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;"><div>* [[DaimlerChrysler]] [[Active Cylinder Control]] (ACC) (for [[Mercedes-Benz]])</div></td><td class="diff-marker"></td><td style="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;"><div>* [[DaimlerChrysler]] [[Active Cylinder Control]] (ACC) (for [[Mercedes-Benz]])</div></td></tr> </table>

Slalom https://wikicars.org/index.php?title=Variable_Displacement&diff=6219&oldid=prev 2006-06-26T12:55:11Z

<p></p> <p><b>New page</b></p><div>&#039;&#039;&#039;Variable [[engine displacement|displacement]]&#039;&#039;&#039; is an [[automobile]] engine technology that allows the [[engine displacement]] to change for improved fuel economy. Many automobile manufacturers have adopted this technology as of [[2005]], but it is not a new concept.<br /> <br /> Most variable displacement systems work by turning off a bank of cylinders in a [[V engine]], but the initial systems worked differently. Pioneered on [[Cadillac]]&#039;s ill-fated &#039;&#039;L62&#039;&#039; &quot;V8-6-4&quot; engine, the original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. But the system was troublesome, and the technology was quickly retired.<br /> <br /> No automaker attempted the same trick again until [[Mercedes-Benz]] experimented with their Multi-Displacement System [[V12]] in the 1990s. It was not widely deployed until the 2004 [[DaimlerChrysler]] Hemi. Other systems appeared in 2005 from [[General Motors Corporation|GM]] (&#039;&#039;Displacement on Demand&#039;&#039; in the Generation IV small-block) and [[Honda]] (&#039;&#039;Variable Cylinder Management&#039;&#039; on the J family engines). Honda&#039;s system works by deactivating a bank of cylinders, while the Chrysler Hemi shuts off opposing pairs.<br /> <br /> Two issues to overcome with all of these systems is the unbalanced cooling and vibration of variable-displacement engines.<br /> <br /> ==Variable displacement technologies==<br /> * [[General Motors Corporation|General Motors]] [[Cadillac V8 engine#L62 V8-6-4|V8-6-4]] ([[Cadillac (automobile)|Cadillac]])<br /> * [[General Motors Corporation|General Motors]] [[Displacement on Demand]] (DoD)<br /> * [[DaimlerChrysler]] [[Multi-Displacement System]] (MDS) (for [[Chrysler Corporation|Chrysler]])<br /> * [[DaimlerChrysler]] [[Active Cylinder Control]] (ACC) (for [[Mercedes-Benz]])<br /> * [[Honda]] [[Variable Cylinder Management]] (VCM)<br /> <br /> ===See also===<br /> *[[Compression ratio#Saab Variable Compression engine|Saab Variable Compression engine]]<br /> <br /> [[Category:Engine technology]]</div>

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