Adjustable blade turbines
The present invention relates generally to hydroelectric turbine installations. More particularly, this invention pertains to hydroelectric installations utilizing propeller-type turbines in which the angular position of the runner blades relative to the hub of the turbine or propeller, i.e. the pit...
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| creator | Cybularz, Joseph M Donelson, Richard K Fisher, Jr., Richard K Grubb, Robert G Seifarth, Randy V Etter, Siegbert Zehner, Donald E |
| description | The present invention relates generally to hydroelectric turbine installations. More particularly, this invention pertains to hydroelectric installations utilizing propeller-type turbines in which the angular position of the runner blades relative to the hub of the turbine or propeller, i.e. the pitch of the blades, is adjustable.
A turbine, adaptable to improve the survivability of fish present in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner edge and a distal outer edge, a leading edge and a trailing edge separated by a water directing surface. Each blade is rotatable relative to the hub about a blade rotational axis. The turbine is provided with a gap shielding device designed to shield a gap formed between the hub and the blade inner edge as the blade is rotated about its axis. The gap shielding device may comprise a plurality of independently biased pins, a plurality of fluid jets, a plurality of flexible members, a fluid-filled boot, and combinations thereof. |
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A turbine, adaptable to improve the survivability of fish present in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner edge and a distal outer edge, a leading edge and a trailing edge separated by a water directing surface. Each blade is rotatable relative to the hub about a blade rotational axis. The turbine is provided with a gap shielding device designed to shield a gap formed between the hub and the blade inner edge as the blade is rotated about its axis. The gap shielding device may comprise a plurality of independently biased pins, a plurality of fluid jets, a plurality of flexible members, a fluid-filled boot, and combinations thereof.</description><language>eng</language><creationdate>2002</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6402477$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,309,781,803,886,64044</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6402477$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Cybularz, Joseph M</creatorcontrib><creatorcontrib>Donelson, Richard K</creatorcontrib><creatorcontrib>Fisher, Jr., Richard K</creatorcontrib><creatorcontrib>Grubb, Robert G</creatorcontrib><creatorcontrib>Seifarth, Randy V</creatorcontrib><creatorcontrib>Etter, Siegbert</creatorcontrib><creatorcontrib>Zehner, Donald E</creatorcontrib><creatorcontrib>Voith Siemens Hydro Power Generation, Inc</creatorcontrib><title>Adjustable blade turbines</title><description>The present invention relates generally to hydroelectric turbine installations. More particularly, this invention pertains to hydroelectric installations utilizing propeller-type turbines in which the angular position of the runner blades relative to the hub of the turbine or propeller, i.e. the pitch of the blades, is adjustable.
A turbine, adaptable to improve the survivability of fish present in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner edge and a distal outer edge, a leading edge and a trailing edge separated by a water directing surface. Each blade is rotatable relative to the hub about a blade rotational axis. The turbine is provided with a gap shielding device designed to shield a gap formed between the hub and the blade inner edge as the blade is rotated about its axis. The gap shielding device may comprise a plurality of independently biased pins, a plurality of fluid jets, a plurality of flexible members, a fluid-filled boot, and combinations thereof.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNrjZJB0TMkqLS5JTMpJVUjKSUxJVSgpLUrKzEst5mFgTUvMKU7lhdLcDApuriHOHrqlxQWJJal5JcXx6UWJIMrAzMTAyMTc3JgIJQAHHiON</recordid><startdate>20020611</startdate><enddate>20020611</enddate><creator>Cybularz, Joseph M</creator><creator>Donelson, Richard K</creator><creator>Fisher, Jr., Richard K</creator><creator>Grubb, Robert G</creator><creator>Seifarth, Randy V</creator><creator>Etter, Siegbert</creator><creator>Zehner, Donald E</creator><scope>EFH</scope></search><sort><creationdate>20020611</creationdate><title>Adjustable blade turbines</title><author>Cybularz, Joseph M ; Donelson, Richard K ; Fisher, Jr., Richard K ; Grubb, Robert G ; Seifarth, Randy V ; Etter, Siegbert ; Zehner, Donald E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_064024773</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Cybularz, Joseph M</creatorcontrib><creatorcontrib>Donelson, Richard K</creatorcontrib><creatorcontrib>Fisher, Jr., Richard K</creatorcontrib><creatorcontrib>Grubb, Robert G</creatorcontrib><creatorcontrib>Seifarth, Randy V</creatorcontrib><creatorcontrib>Etter, Siegbert</creatorcontrib><creatorcontrib>Zehner, Donald E</creatorcontrib><creatorcontrib>Voith Siemens Hydro Power Generation, Inc</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Cybularz, Joseph M</au><au>Donelson, Richard K</au><au>Fisher, Jr., Richard K</au><au>Grubb, Robert G</au><au>Seifarth, Randy V</au><au>Etter, Siegbert</au><au>Zehner, Donald E</au><aucorp>Voith Siemens Hydro Power Generation, Inc</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Adjustable blade turbines</title><date>2002-06-11</date><risdate>2002</risdate><abstract>The present invention relates generally to hydroelectric turbine installations. More particularly, this invention pertains to hydroelectric installations utilizing propeller-type turbines in which the angular position of the runner blades relative to the hub of the turbine or propeller, i.e. the pitch of the blades, is adjustable.
A turbine, adaptable to improve the survivability of fish present in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner edge and a distal outer edge, a leading edge and a trailing edge separated by a water directing surface. Each blade is rotatable relative to the hub about a blade rotational axis. The turbine is provided with a gap shielding device designed to shield a gap formed between the hub and the blade inner edge as the blade is rotated about its axis. The gap shielding device may comprise a plurality of independently biased pins, a plurality of fluid jets, a plurality of flexible members, a fluid-filled boot, and combinations thereof.</abstract><oa>free_for_read</oa></addata></record> |
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| title | Adjustable blade turbines |
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