MITIGATION OF ADVERSE FLOW CONDITIONS IN A NACELLE INLET

MITIGATION OF ADVERSE FLOW CONDITIONS IN A NACELLE INLET

An airflow proximate to leading edges of a turbofan nacelle is ejected substantially normal to a fan face of the turbofan, creating suction proximate to the leading edge and mitigating flow separation proximate to the leading edge. One embodiment comprises a turbofan engine that includes a nacelle,...

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Hauptverfasser: Palacios Gutierrez, Francisco de Asis, Brown, Eric David, Hoisington, Zachary Charles
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
COMBUSTION ENGINES
ENGINE PLANTS IN GENERAL
FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS
FLUID-PRESSURE ACTUATORS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
HYDRAULICS OR PNEUMATICS IN GENERAL
JET-PROPULSION PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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creator Palacios Gutierrez, Francisco de Asis
Brown, Eric David
Hoisington, Zachary Charles
description An airflow proximate to leading edges of a turbofan nacelle is ejected substantially normal to a fan face of the turbofan, creating suction proximate to the leading edge and mitigating flow separation proximate to the leading edge. One embodiment comprises a turbofan engine that includes a nacelle, a bypass fan, and a recirculation channel. The recirculation channel is disposed within the nacelle and has a recirculation channel inlet downstream of a leading edge of the bypass fan. The recirculation channel has one or more recirculation channel outlets upstream of the bypass fan that are proximate to a leading edge of a nacelle inlet, where the recirculation channel outlets redirect an airflow from the recirculation channel towards an inside edge of the nacelle inlet to mitigate flow separation at the leading edge of the nacelle inlet.
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One embodiment comprises a turbofan engine that includes a nacelle, a bypass fan, and a recirculation channel. The recirculation channel is disposed within the nacelle and has a recirculation channel inlet downstream of a leading edge of the bypass fan. The recirculation channel has one or more recirculation channel outlets upstream of the bypass fan that are proximate to a leading edge of a nacelle inlet, where the recirculation channel outlets redirect an airflow from the recirculation channel towards an inside edge of the nacelle inlet to mitigate flow separation at the leading edge of the nacelle inlet.</description><language>eng</language><subject>BLASTING ; COMBUSTION ENGINES ; ENGINE PLANTS IN GENERAL ; FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS ; FLUID-PRESSURE ACTUATORS ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; HYDRAULICS OR PNEUMATICS IN GENERAL ; JET-PROPULSION PLANTS ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES ; STEAM ENGINES ; WEAPONS</subject><creationdate>2020</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&amp;date=20201210&amp;DB=EPODOC&amp;CC=US&amp;NR=2020386107A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20201210&amp;DB=EPODOC&amp;CC=US&amp;NR=2020386107A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Palacios Gutierrez, Francisco de Asis</creatorcontrib><creatorcontrib>Brown, Eric David</creatorcontrib><creatorcontrib>Hoisington, Zachary Charles</creatorcontrib><title>MITIGATION OF ADVERSE FLOW CONDITIONS IN A NACELLE INLET</title><description>An airflow proximate to leading edges of a turbofan nacelle is ejected substantially normal to a fan face of the turbofan, creating suction proximate to the leading edge and mitigating flow separation proximate to the leading edge. One embodiment comprises a turbofan engine that includes a nacelle, a bypass fan, and a recirculation channel. The recirculation channel is disposed within the nacelle and has a recirculation channel inlet downstream of a leading edge of the bypass fan. The recirculation channel has one or more recirculation channel outlets upstream of the bypass fan that are proximate to a leading edge of a nacelle inlet, where the recirculation channel outlets redirect an airflow from the recirculation channel towards an inside edge of the nacelle inlet to mitigate flow separation at the leading edge of the nacelle inlet.</description><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS</subject><subject>FLUID-PRESSURE ACTUATORS</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>HYDRAULICS OR PNEUMATICS IN GENERAL</subject><subject>JET-PROPULSION PLANTS</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</subject><subject>STEAM ENGINES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDw9QzxdHcM8fT3U_B3U3B0CXMNCnZVcPPxD1dw9vdz8QTJBCt4-ik4Kvg5Orv6-LgCOT6uITwMrGmJOcWpvFCam0HZzTXE2UM3tSA_PrW4IDE5NS-1JD402MjAyMDYwszQwNzR0Jg4VQDpBCkb</recordid><startdate>20201210</startdate><enddate>20201210</enddate><creator>Palacios Gutierrez, Francisco de Asis</creator><creator>Brown, Eric David</creator><creator>Hoisington, Zachary Charles</creator><scope>EVB</scope></search><sort><creationdate>20201210</creationdate><title>MITIGATION OF ADVERSE FLOW CONDITIONS IN A NACELLE INLET</title><author>Palacios Gutierrez, Francisco de Asis ; Brown, Eric David ; Hoisington, Zachary Charles</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2020386107A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2020</creationdate><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>JET-PROPULSION PLANTS</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</topic><topic>STEAM ENGINES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>Palacios Gutierrez, Francisco de Asis</creatorcontrib><creatorcontrib>Brown, Eric David</creatorcontrib><creatorcontrib>Hoisington, Zachary Charles</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Palacios Gutierrez, Francisco de Asis</au><au>Brown, Eric David</au><au>Hoisington, Zachary Charles</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MITIGATION OF ADVERSE FLOW CONDITIONS IN A NACELLE INLET</title><date>2020-12-10</date><risdate>2020</risdate><abstract>An airflow proximate to leading edges of a turbofan nacelle is ejected substantially normal to a fan face of the turbofan, creating suction proximate to the leading edge and mitigating flow separation proximate to the leading edge. One embodiment comprises a turbofan engine that includes a nacelle, a bypass fan, and a recirculation channel. The recirculation channel is disposed within the nacelle and has a recirculation channel inlet downstream of a leading edge of the bypass fan. The recirculation channel has one or more recirculation channel outlets upstream of the bypass fan that are proximate to a leading edge of a nacelle inlet, where the recirculation channel outlets redirect an airflow from the recirculation channel towards an inside edge of the nacelle inlet to mitigate flow separation at the leading edge of the nacelle inlet.</abstract><oa>free_for_read</oa></addata></record>
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subjects BLASTING
COMBUSTION ENGINES
ENGINE PLANTS IN GENERAL
FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS
FLUID-PRESSURE ACTUATORS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
HYDRAULICS OR PNEUMATICS IN GENERAL
JET-PROPULSION PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
title MITIGATION OF ADVERSE FLOW CONDITIONS IN A NACELLE INLET
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