Reduce noise engine compression release braking
A number of engine operating strategies have been developed that allow for engine braking when combustion is not needed. In these strategies, air within the engine cylinder is compressed by the cylinder piston; however, rather than introducing fuel into the cylinder to facilitate a combustion event,...
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| creator | FUNKE, STEVEN J MICKIEWICZ, MATTHEW G |
| description | A number of engine operating strategies have been developed that allow for engine braking when combustion is not needed. In these strategies, air within the engine cylinder is compressed by the cylinder piston; however, rather than introducing fuel into the cylinder to facilitate a combustion event, the cylinder is opened to an exhaust manifold and the compressed air is vented, and the energy is released by the engine. However, it has been learned that the venting of this compressed air from the engine can produce undesirable noise emissions. Thus, the present invention employs a dual exhaust valve lift strategy to reduce noise produced during engine braking while still allowing relatively high engine braking horsepowers to be achieved. |
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In these strategies, air within the engine cylinder is compressed by the cylinder piston; however, rather than introducing fuel into the cylinder to facilitate a combustion event, the cylinder is opened to an exhaust manifold and the compressed air is vented, and the energy is released by the engine. However, it has been learned that the venting of this compressed air from the engine can produce undesirable noise emissions. Thus, the present invention employs a dual exhaust valve lift strategy to reduce noise produced during engine braking while still allowing relatively high engine braking horsepowers to be achieved.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>BLASTING ; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ; ENGINE PLANTS IN GENERAL ; HEATING ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; STEAM ENGINES ; WEAPONS</subject><creationdate>2003</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030716&DB=EPODOC&CC=EP&NR=1281840A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030716&DB=EPODOC&CC=EP&NR=1281840A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FUNKE, STEVEN J</creatorcontrib><creatorcontrib>MICKIEWICZ, MATTHEW G</creatorcontrib><title>Reduce noise engine compression release braking</title><description>A number of engine operating strategies have been developed that allow for engine braking when combustion is not needed. In these strategies, air within the engine cylinder is compressed by the cylinder piston; however, rather than introducing fuel into the cylinder to facilitate a combustion event, the cylinder is opened to an exhaust manifold and the compressed air is vented, and the energy is released by the engine. However, it has been learned that the venting of this compressed air from the engine can produce undesirable noise emissions. Thus, the present invention employs a dual exhaust valve lift strategy to reduce noise produced during engine braking while still allowing relatively high engine braking horsepowers to be achieved.</description><subject>BLASTING</subject><subject>CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>STEAM ENGINES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2003</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAPSk0pTU5VyMvPLE5VSM1Lz8xLVUjOzy0oSi0uzszPUyhKzUlNBEolFSVmZ-al8zCwpiXmFKfyQmluBgU31xBnD93Ugvz41OKCxOTUvNSSeNcAQyMLQwsTA0djYyKUAADpxSqv</recordid><startdate>20030716</startdate><enddate>20030716</enddate><creator>FUNKE, STEVEN J</creator><creator>MICKIEWICZ, MATTHEW G</creator><scope>EVB</scope></search><sort><creationdate>20030716</creationdate><title>Reduce noise engine compression release braking</title><author>FUNKE, STEVEN J ; MICKIEWICZ, MATTHEW G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1281840A33</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2003</creationdate><topic>BLASTING</topic><topic>CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>STEAM ENGINES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>FUNKE, STEVEN J</creatorcontrib><creatorcontrib>MICKIEWICZ, MATTHEW G</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FUNKE, STEVEN J</au><au>MICKIEWICZ, MATTHEW G</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Reduce noise engine compression release braking</title><date>2003-07-16</date><risdate>2003</risdate><abstract>A number of engine operating strategies have been developed that allow for engine braking when combustion is not needed. In these strategies, air within the engine cylinder is compressed by the cylinder piston; however, rather than introducing fuel into the cylinder to facilitate a combustion event, the cylinder is opened to an exhaust manifold and the compressed air is vented, and the energy is released by the engine. However, it has been learned that the venting of this compressed air from the engine can produce undesirable noise emissions. Thus, the present invention employs a dual exhaust valve lift strategy to reduce noise produced during engine braking while still allowing relatively high engine braking horsepowers to be achieved.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS |
| title | Reduce noise engine compression release braking |
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