Frangible fan blade
The present invention relates to a fan blade (34) in an axial gas turbine engine. The blade platform (46) is constructed to fracture adjacent the airfoil portion (48) of the blade so as to locate the fractured edge of the platform in the root portion (44). As a result of this benign platform, damage...
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| creator | WELCH, DOUGLAS A KASPROW, ROBERT F KLAPPROTH, HERMAN C ZIPPS, ROBERT H TODD, EDWARD S CAFASSO, JOSEPH J SPAULDING, REGINALD H KURZ, PHYLLIS L |
| description | The present invention relates to a fan blade (34) in an axial gas turbine engine. The blade platform (46) is constructed to fracture adjacent the airfoil portion (48) of the blade so as to locate the fractured edge of the platform in the root portion (44). As a result of this benign platform, damage to successive fan blades during a blade loss condition is reduced. In addition, various construction details are developed in the airfoil and root portion of the fan blade to reduce damage to fan blades during impact with adjacent blades. |
| format | Patent |
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The blade platform (46) is constructed to fracture adjacent the airfoil portion (48) of the blade so as to locate the fractured edge of the platform in the root portion (44). As a result of this benign platform, damage to successive fan blades during a blade loss condition is reduced. In addition, various construction details are developed in the airfoil and root portion of the fan blade to reduce damage to fan blades during impact with adjacent blades.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>AIR INTAKES FOR JET-PROPULSION PLANTS ; BLASTING ; COMBUSTION ENGINES ; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ; ENGINE PLANTS IN GENERAL ; GAS-TURBINE PLANTS ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES ; NON-POSITIVE DISPLACEMENT PUMPS ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; STEAM ENGINES ; WEAPONS</subject><creationdate>2000</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=20000322&DB=EPODOC&CC=EP&NR=0874136A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000322&DB=EPODOC&CC=EP&NR=0874136A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WELCH, DOUGLAS A</creatorcontrib><creatorcontrib>KASPROW, ROBERT F</creatorcontrib><creatorcontrib>KLAPPROTH, HERMAN C</creatorcontrib><creatorcontrib>ZIPPS, ROBERT H</creatorcontrib><creatorcontrib>TODD, EDWARD S</creatorcontrib><creatorcontrib>CAFASSO, JOSEPH J</creatorcontrib><creatorcontrib>SPAULDING, REGINALD H</creatorcontrib><creatorcontrib>KURZ, PHYLLIS L</creatorcontrib><title>Frangible fan blade</title><description>The present invention relates to a fan blade (34) in an axial gas turbine engine. The blade platform (46) is constructed to fracture adjacent the airfoil portion (48) of the blade so as to locate the fractured edge of the platform in the root portion (44). As a result of this benign platform, damage to successive fan blades during a blade loss condition is reduced. In addition, various construction details are developed in the airfoil and root portion of the fan blade to reduce damage to fan blades during impact with adjacent blades.</description><subject>AIR INTAKES FOR JET-PROPULSION PLANTS</subject><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>GAS-TURBINE PLANTS</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE 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>NON-POSITIVE DISPLACEMENT PUMPS</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>STEAM ENGINES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBB2K0rMS89MyklVSEvMU0jKSUxJ5WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BBhbmJobGZo7GxkQoAQC_jB-X</recordid><startdate>20000322</startdate><enddate>20000322</enddate><creator>WELCH, DOUGLAS A</creator><creator>KASPROW, ROBERT F</creator><creator>KLAPPROTH, HERMAN C</creator><creator>ZIPPS, ROBERT H</creator><creator>TODD, EDWARD S</creator><creator>CAFASSO, JOSEPH J</creator><creator>SPAULDING, REGINALD H</creator><creator>KURZ, PHYLLIS L</creator><scope>EVB</scope></search><sort><creationdate>20000322</creationdate><title>Frangible fan blade</title><author>WELCH, DOUGLAS A ; KASPROW, ROBERT F ; KLAPPROTH, HERMAN C ; ZIPPS, ROBERT H ; TODD, EDWARD S ; CAFASSO, JOSEPH J ; SPAULDING, REGINALD H ; KURZ, PHYLLIS L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0874136A33</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2000</creationdate><topic>AIR INTAKES FOR JET-PROPULSION PLANTS</topic><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>GAS-TURBINE PLANTS</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE 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>NON-POSITIVE DISPLACEMENT PUMPS</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>STEAM ENGINES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>WELCH, DOUGLAS A</creatorcontrib><creatorcontrib>KASPROW, ROBERT F</creatorcontrib><creatorcontrib>KLAPPROTH, HERMAN C</creatorcontrib><creatorcontrib>ZIPPS, ROBERT H</creatorcontrib><creatorcontrib>TODD, EDWARD S</creatorcontrib><creatorcontrib>CAFASSO, JOSEPH J</creatorcontrib><creatorcontrib>SPAULDING, REGINALD H</creatorcontrib><creatorcontrib>KURZ, PHYLLIS L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WELCH, DOUGLAS A</au><au>KASPROW, ROBERT F</au><au>KLAPPROTH, HERMAN C</au><au>ZIPPS, ROBERT H</au><au>TODD, EDWARD S</au><au>CAFASSO, JOSEPH J</au><au>SPAULDING, REGINALD H</au><au>KURZ, PHYLLIS L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Frangible fan blade</title><date>2000-03-22</date><risdate>2000</risdate><abstract>The present invention relates to a fan blade (34) in an axial gas turbine engine. The blade platform (46) is constructed to fracture adjacent the airfoil portion (48) of the blade so as to locate the fractured edge of the platform in the root portion (44). As a result of this benign platform, damage to successive fan blades during a blade loss condition is reduced. In addition, various construction details are developed in the airfoil and root portion of the fan blade to reduce damage to fan blades during impact with adjacent blades.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
| recordid | cdi_epo_espacenet_EP0874136A3 |
| source | esp@cenet |
| subjects | AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES WEAPONS |
| title | Frangible fan blade |
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