STEAM TURBINE STATOR BLADE
PROBLEM TO BE SOLVED: To provide a hollow stator blade made by precision casting for use in the final stage of a steam turbine, with which the drain retrieving efficiency is enhanced. SOLUTION: In a stator blade 1, cavities 4 and 5 penetrating from the outer shroud 2 to inner shroud 3 are independen...
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| creator | UMAGOE RYUTARO WATANABE EIICHIRO TODA HIDEYUKI MATSUO TAKAAKI KONISHI SATORU |
| description | PROBLEM TO BE SOLVED: To provide a hollow stator blade made by precision casting for use in the final stage of a steam turbine, with which the drain retrieving efficiency is enhanced. SOLUTION: In a stator blade 1, cavities 4 and 5 penetrating from the outer shroud 2 to inner shroud 3 are independently provided in such a way as partitioned by a rib 6. On the belly side of the blade obverse surface, a plurality of belly side slits 10-20 are parallel provided linearly at a certain spacing. Also on the back side, back side slits 21-26 are provided linearly at a certain spacing. The drain on the blade obverse surface intrudes into the independent cavities 4 and 5 from the belly side slits 10-20 and back side slits 21-26 and flows out from the outer shroud 2 or inner shroud 3 as shown by 40-43 to be retrieved. According to this configuration in which partitioning is made by rib 6 into two cavities, counterflowing to outside can be precluded, different from a conventional arrangement equipped with a single cavity. |
| format | Patent |
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SOLUTION: In a stator blade 1, cavities 4 and 5 penetrating from the outer shroud 2 to inner shroud 3 are independently provided in such a way as partitioned by a rib 6. On the belly side of the blade obverse surface, a plurality of belly side slits 10-20 are parallel provided linearly at a certain spacing. Also on the back side, back side slits 21-26 are provided linearly at a certain spacing. The drain on the blade obverse surface intrudes into the independent cavities 4 and 5 from the belly side slits 10-20 and back side slits 21-26 and flows out from the outer shroud 2 or inner shroud 3 as shown by 40-43 to be retrieved. According to this configuration in which partitioning is made by rib 6 into two cavities, counterflowing to outside can be precluded, different from a conventional arrangement equipped with a single cavity.</description><edition>6</edition><language>eng</language><subject>BLASTING ; ENGINE PLANTS IN GENERAL ; HEATING ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES ; STEAM ENGINES ; WEAPONS</subject><creationdate>1999</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=19991207&DB=EPODOC&CC=JP&NR=H11336503A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19991207&DB=EPODOC&CC=JP&NR=H11336503A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>UMAGOE RYUTARO</creatorcontrib><creatorcontrib>WATANABE EIICHIRO</creatorcontrib><creatorcontrib>TODA HIDEYUKI</creatorcontrib><creatorcontrib>MATSUO TAKAAKI</creatorcontrib><creatorcontrib>KONISHI SATORU</creatorcontrib><title>STEAM TURBINE STATOR BLADE</title><description>PROBLEM TO BE SOLVED: To provide a hollow stator blade made by precision casting for use in the final stage of a steam turbine, with which the drain retrieving efficiency is enhanced. SOLUTION: In a stator blade 1, cavities 4 and 5 penetrating from the outer shroud 2 to inner shroud 3 are independently provided in such a way as partitioned by a rib 6. On the belly side of the blade obverse surface, a plurality of belly side slits 10-20 are parallel provided linearly at a certain spacing. Also on the back side, back side slits 21-26 are provided linearly at a certain spacing. The drain on the blade obverse surface intrudes into the independent cavities 4 and 5 from the belly side slits 10-20 and back side slits 21-26 and flows out from the outer shroud 2 or inner shroud 3 as shown by 40-43 to be retrieved. According to this configuration in which partitioning is made by rib 6 into two cavities, counterflowing to outside can be precluded, different from a conventional arrangement equipped with a single cavity.</description><subject>BLASTING</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>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</subject><subject>STEAM ENGINES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAKDnF19FUICQ1y8vRzVQgOcQzxD1Jw8nF0ceVhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfFeAR6GhsbGZqYGxo7GxKgBADEXIFc</recordid><startdate>19991207</startdate><enddate>19991207</enddate><creator>UMAGOE RYUTARO</creator><creator>WATANABE EIICHIRO</creator><creator>TODA HIDEYUKI</creator><creator>MATSUO TAKAAKI</creator><creator>KONISHI SATORU</creator><scope>EVB</scope></search><sort><creationdate>19991207</creationdate><title>STEAM TURBINE STATOR BLADE</title><author>UMAGOE RYUTARO ; WATANABE EIICHIRO ; TODA HIDEYUKI ; MATSUO TAKAAKI ; KONISHI SATORU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH11336503A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>BLASTING</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>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</topic><topic>STEAM ENGINES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>UMAGOE RYUTARO</creatorcontrib><creatorcontrib>WATANABE EIICHIRO</creatorcontrib><creatorcontrib>TODA HIDEYUKI</creatorcontrib><creatorcontrib>MATSUO TAKAAKI</creatorcontrib><creatorcontrib>KONISHI SATORU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>UMAGOE RYUTARO</au><au>WATANABE EIICHIRO</au><au>TODA HIDEYUKI</au><au>MATSUO TAKAAKI</au><au>KONISHI SATORU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STEAM TURBINE STATOR BLADE</title><date>1999-12-07</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To provide a hollow stator blade made by precision casting for use in the final stage of a steam turbine, with which the drain retrieving efficiency is enhanced. SOLUTION: In a stator blade 1, cavities 4 and 5 penetrating from the outer shroud 2 to inner shroud 3 are independently provided in such a way as partitioned by a rib 6. On the belly side of the blade obverse surface, a plurality of belly side slits 10-20 are parallel provided linearly at a certain spacing. Also on the back side, back side slits 21-26 are provided linearly at a certain spacing. The drain on the blade obverse surface intrudes into the independent cavities 4 and 5 from the belly side slits 10-20 and back side slits 21-26 and flows out from the outer shroud 2 or inner shroud 3 as shown by 40-43 to be retrieved. According to this configuration in which partitioning is made by rib 6 into two cavities, counterflowing to outside can be precluded, different from a conventional arrangement equipped with a single cavity.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS |
| title | STEAM TURBINE STATOR BLADE |
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