Swirler assembly and combinations of same in gas turbine engine combustors
A fuel/air mixing apparatus, such as a main swirler assembly (400) comprising a sleeve (410), provides for additional air entry around the perimeter of a bore (440) through which passes a fuel/air mixture. The additional air reduces or eliminates flashback during operation of a gas turbine comprisin...
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| creator | MUMFORD STEPHEN E PARKER DAVID M REID HERBERT C HARRIS, JR. ARTHUR J WETZL KRISTIAN I OHRI RAJEEV |
| description | A fuel/air mixing apparatus, such as a main swirler assembly (400) comprising a sleeve (410), provides for additional air entry around the perimeter of a bore (440) through which passes a fuel/air mixture. The additional air reduces or eliminates flashback during operation of a gas turbine comprising the assembly (400). In some embodiments, a plurality of gaps (464) exists between spaced apart tabs (462) along a downstream end (460) of the sleeve (410). During gas turbine operation, air flows through both a flashback annulus (411) and the gaps (464). In other embodiments, a plurality of holes are placed upstream and in line with the tabs (1004) to supplement the air flow through gaps (1006). In yet other embodiments, rows (1102) of holes (1104) are provided to supplement the airflow. Downstream ends (460,1218) may interface with a downstream-oriented lip (460) or with an upstream-oriented lip (1224). The interfacing may comprise a fit effective to damp vibration and to increase the natural frequency. |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US7513098B2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US7513098B2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US7513098B23</originalsourceid><addsrcrecordid>eNrjZPAKLs8sykktUkgsLk7NTcqpVEjMS1FIzs9NysxLLMnMzytWyE9TKE7MTVXIzFNITyxWKCktAsqlKqTmpYMokNLS4pL8omIeBta0xJziVF4ozc2g4OYa4uyhm1qQH59aXJCYnJqXWhIfGmxuamhsYGnhZGRMhBIA07Q1Ew</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Swirler assembly and combinations of same in gas turbine engine combustors</title><source>esp@cenet</source><creator>MUMFORD STEPHEN E ; PARKER DAVID M ; REID HERBERT C ; HARRIS, JR. ARTHUR J ; WETZL KRISTIAN I ; OHRI RAJEEV</creator><creatorcontrib>MUMFORD STEPHEN E ; PARKER DAVID M ; REID HERBERT C ; HARRIS, JR. ARTHUR J ; WETZL KRISTIAN I ; OHRI RAJEEV</creatorcontrib><description>A fuel/air mixing apparatus, such as a main swirler assembly (400) comprising a sleeve (410), provides for additional air entry around the perimeter of a bore (440) through which passes a fuel/air mixture. The additional air reduces or eliminates flashback during operation of a gas turbine comprising the assembly (400). In some embodiments, a plurality of gaps (464) exists between spaced apart tabs (462) along a downstream end (460) of the sleeve (410). During gas turbine operation, air flows through both a flashback annulus (411) and the gaps (464). In other embodiments, a plurality of holes are placed upstream and in line with the tabs (1004) to supplement the air flow through gaps (1006). In yet other embodiments, rows (1102) of holes (1104) are provided to supplement the airflow. Downstream ends (460,1218) may interface with a downstream-oriented lip (460) or with an upstream-oriented lip (1224). The interfacing may comprise a fit effective to damp vibration and to increase the natural frequency.</description><language>eng</language><subject>AIR INTAKES FOR JET-PROPULSION PLANTS ; BLASTING ; COMBUSTION APPARATUS ; COMBUSTION ENGINES ; COMBUSTION PROCESSES ; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ; GAS-TURBINE PLANTS ; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MECHANICAL ENGINEERING ; WEAPONS</subject><creationdate>2009</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=20090407&DB=EPODOC&CC=US&NR=7513098B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25555,76308</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20090407&DB=EPODOC&CC=US&NR=7513098B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MUMFORD STEPHEN E</creatorcontrib><creatorcontrib>PARKER DAVID M</creatorcontrib><creatorcontrib>REID HERBERT C</creatorcontrib><creatorcontrib>HARRIS, JR. ARTHUR J</creatorcontrib><creatorcontrib>WETZL KRISTIAN I</creatorcontrib><creatorcontrib>OHRI RAJEEV</creatorcontrib><title>Swirler assembly and combinations of same in gas turbine engine combustors</title><description>A fuel/air mixing apparatus, such as a main swirler assembly (400) comprising a sleeve (410), provides for additional air entry around the perimeter of a bore (440) through which passes a fuel/air mixture. The additional air reduces or eliminates flashback during operation of a gas turbine comprising the assembly (400). In some embodiments, a plurality of gaps (464) exists between spaced apart tabs (462) along a downstream end (460) of the sleeve (410). During gas turbine operation, air flows through both a flashback annulus (411) and the gaps (464). In other embodiments, a plurality of holes are placed upstream and in line with the tabs (1004) to supplement the air flow through gaps (1006). In yet other embodiments, rows (1102) of holes (1104) are provided to supplement the airflow. Downstream ends (460,1218) may interface with a downstream-oriented lip (460) or with an upstream-oriented lip (1224). The interfacing may comprise a fit effective to damp vibration and to increase the natural frequency.</description><subject>AIR INTAKES FOR JET-PROPULSION PLANTS</subject><subject>BLASTING</subject><subject>COMBUSTION APPARATUS</subject><subject>COMBUSTION ENGINES</subject><subject>COMBUSTION PROCESSES</subject><subject>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS</subject><subject>GAS-TURBINE PLANTS</subject><subject>GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPAKLs8sykktUkgsLk7NTcqpVEjMS1FIzs9NysxLLMnMzytWyE9TKE7MTVXIzFNITyxWKCktAsqlKqTmpYMokNLS4pL8omIeBta0xJziVF4ozc2g4OYa4uyhm1qQH59aXJCYnJqXWhIfGmxuamhsYGnhZGRMhBIA07Q1Ew</recordid><startdate>20090407</startdate><enddate>20090407</enddate><creator>MUMFORD STEPHEN E</creator><creator>PARKER DAVID M</creator><creator>REID HERBERT C</creator><creator>HARRIS, JR. ARTHUR J</creator><creator>WETZL KRISTIAN I</creator><creator>OHRI RAJEEV</creator><scope>EVB</scope></search><sort><creationdate>20090407</creationdate><title>Swirler assembly and combinations of same in gas turbine engine combustors</title><author>MUMFORD STEPHEN E ; PARKER DAVID M ; REID HERBERT C ; HARRIS, JR. ARTHUR J ; WETZL KRISTIAN I ; OHRI RAJEEV</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US7513098B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2009</creationdate><topic>AIR INTAKES FOR JET-PROPULSION PLANTS</topic><topic>BLASTING</topic><topic>COMBUSTION APPARATUS</topic><topic>COMBUSTION ENGINES</topic><topic>COMBUSTION PROCESSES</topic><topic>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS</topic><topic>GAS-TURBINE PLANTS</topic><topic>GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MUMFORD STEPHEN E</creatorcontrib><creatorcontrib>PARKER DAVID M</creatorcontrib><creatorcontrib>REID HERBERT C</creatorcontrib><creatorcontrib>HARRIS, JR. ARTHUR J</creatorcontrib><creatorcontrib>WETZL KRISTIAN I</creatorcontrib><creatorcontrib>OHRI RAJEEV</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MUMFORD STEPHEN E</au><au>PARKER DAVID M</au><au>REID HERBERT C</au><au>HARRIS, JR. ARTHUR J</au><au>WETZL KRISTIAN I</au><au>OHRI RAJEEV</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Swirler assembly and combinations of same in gas turbine engine combustors</title><date>2009-04-07</date><risdate>2009</risdate><abstract>A fuel/air mixing apparatus, such as a main swirler assembly (400) comprising a sleeve (410), provides for additional air entry around the perimeter of a bore (440) through which passes a fuel/air mixture. The additional air reduces or eliminates flashback during operation of a gas turbine comprising the assembly (400). In some embodiments, a plurality of gaps (464) exists between spaced apart tabs (462) along a downstream end (460) of the sleeve (410). During gas turbine operation, air flows through both a flashback annulus (411) and the gaps (464). In other embodiments, a plurality of holes are placed upstream and in line with the tabs (1004) to supplement the air flow through gaps (1006). In yet other embodiments, rows (1102) of holes (1104) are provided to supplement the airflow. Downstream ends (460,1218) may interface with a downstream-oriented lip (460) or with an upstream-oriented lip (1224). The interfacing may comprise a fit effective to damp vibration and to increase the natural frequency.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS |
| title | Swirler assembly and combinations of same in gas turbine engine combustors |
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