Propeller fan
This propeller fan is provided with a hub (11) having a side surface (11a) around a center axis (O), and with a plurality of blades provided to the side surface of the hub. Inner peripheral blades extending from the side surface of the hub toward the outer edge side are formed on the respective inne...
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| creator | SAWADA, Hirotaka FUNADA, Kazuya |
| description | This propeller fan is provided with a hub (11) having a side surface (11a) around a center axis (O), and with a plurality of blades provided to the side surface of the hub. Inner peripheral blades extending from the side surface of the hub toward the outer edge side are formed on the respective inner peripheral sections of the plurality of blades at positions on the positive pressure surfaces of blade surface sections. The inner peripheral blades protrude from the positive pressure surfaces of the blade surface sections toward the positive pressure side, and are formed so that the front edge (15a-F) of each inner peripheral blade in a rotational direction (R) is formed curved so as to separate toward the front edge side of the blade in the rotational direction from a reference line (S1) which connects a lower end (E3) located on the positive pressure surface at the base end of the inner peripheral blade connected to the side surface of the hub, and the outer edge (E1) of the inner peripheral blade, which is extended from the side surface toward the outer edge side of the blade and is located on the positive pressure surface. If the length of the reference line is L, and the maximum value of the distance between the reference line and the front edge of the inner peripheral blade is H, then the relationship of H/L ≥ 0.1 is satisfied. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_AU2019387842BB2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>AU2019387842BB2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_AU2019387842BB23</originalsourceid><addsrcrecordid>eNrjZOANKMovSM3JSS1SSEvM42FgTUvMKU7lhdLcDCpuriHOHrqpBfnxqcUFicmpeakl8Y6hRgaGlsYW5hYmRk5ORsZEKgMA4ZEfcA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Propeller fan</title><source>esp@cenet</source><creator>SAWADA, Hirotaka ; FUNADA, Kazuya</creator><creatorcontrib>SAWADA, Hirotaka ; FUNADA, Kazuya</creatorcontrib><description>This propeller fan is provided with a hub (11) having a side surface (11a) around a center axis (O), and with a plurality of blades provided to the side surface of the hub. Inner peripheral blades extending from the side surface of the hub toward the outer edge side are formed on the respective inner peripheral sections of the plurality of blades at positions on the positive pressure surfaces of blade surface sections. The inner peripheral blades protrude from the positive pressure surfaces of the blade surface sections toward the positive pressure side, and are formed so that the front edge (15a-F) of each inner peripheral blade in a rotational direction (R) is formed curved so as to separate toward the front edge side of the blade in the rotational direction from a reference line (S1) which connects a lower end (E3) located on the positive pressure surface at the base end of the inner peripheral blade connected to the side surface of the hub, and the outer edge (E1) of the inner peripheral blade, which is extended from the side surface toward the outer edge side of the blade and is located on the positive pressure surface. If the length of the reference line is L, and the maximum value of the distance between the reference line and the front edge of the inner peripheral blade is H, then the relationship of H/L ≥ 0.1 is satisfied.</description><language>eng</language><subject>BLASTING ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; NON-POSITIVE DISPLACEMENT PUMPS ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; WEAPONS</subject><creationdate>2022</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=20221208&DB=EPODOC&CC=AU&NR=2019387842B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221208&DB=EPODOC&CC=AU&NR=2019387842B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAWADA, Hirotaka</creatorcontrib><creatorcontrib>FUNADA, Kazuya</creatorcontrib><title>Propeller fan</title><description>This propeller fan is provided with a hub (11) having a side surface (11a) around a center axis (O), and with a plurality of blades provided to the side surface of the hub. Inner peripheral blades extending from the side surface of the hub toward the outer edge side are formed on the respective inner peripheral sections of the plurality of blades at positions on the positive pressure surfaces of blade surface sections. The inner peripheral blades protrude from the positive pressure surfaces of the blade surface sections toward the positive pressure side, and are formed so that the front edge (15a-F) of each inner peripheral blade in a rotational direction (R) is formed curved so as to separate toward the front edge side of the blade in the rotational direction from a reference line (S1) which connects a lower end (E3) located on the positive pressure surface at the base end of the inner peripheral blade connected to the side surface of the hub, and the outer edge (E1) of the inner peripheral blade, which is extended from the side surface toward the outer edge side of the blade and is located on the positive pressure surface. If the length of the reference line is L, and the maximum value of the distance between the reference line and the front edge of the inner peripheral blade is H, then the relationship of H/L ≥ 0.1 is satisfied.</description><subject>BLASTING</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>NON-POSITIVE DISPLACEMENT PUMPS</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOANKMovSM3JSS1SSEvM42FgTUvMKU7lhdLcDCpuriHOHrqpBfnxqcUFicmpeakl8Y6hRgaGlsYW5hYmRk5ORsZEKgMA4ZEfcA</recordid><startdate>20221208</startdate><enddate>20221208</enddate><creator>SAWADA, Hirotaka</creator><creator>FUNADA, Kazuya</creator><scope>EVB</scope></search><sort><creationdate>20221208</creationdate><title>Propeller fan</title><author>SAWADA, Hirotaka ; FUNADA, Kazuya</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU2019387842BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2022</creationdate><topic>BLASTING</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>NON-POSITIVE DISPLACEMENT PUMPS</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>SAWADA, Hirotaka</creatorcontrib><creatorcontrib>FUNADA, Kazuya</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAWADA, Hirotaka</au><au>FUNADA, Kazuya</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Propeller fan</title><date>2022-12-08</date><risdate>2022</risdate><abstract>This propeller fan is provided with a hub (11) having a side surface (11a) around a center axis (O), and with a plurality of blades provided to the side surface of the hub. Inner peripheral blades extending from the side surface of the hub toward the outer edge side are formed on the respective inner peripheral sections of the plurality of blades at positions on the positive pressure surfaces of blade surface sections. The inner peripheral blades protrude from the positive pressure surfaces of the blade surface sections toward the positive pressure side, and are formed so that the front edge (15a-F) of each inner peripheral blade in a rotational direction (R) is formed curved so as to separate toward the front edge side of the blade in the rotational direction from a reference line (S1) which connects a lower end (E3) located on the positive pressure surface at the base end of the inner peripheral blade connected to the side surface of the hub, and the outer edge (E1) of the inner peripheral blade, which is extended from the side surface toward the outer edge side of the blade and is located on the positive pressure surface. If the length of the reference line is L, and the maximum value of the distance between the reference line and the front edge of the inner peripheral blade is H, then the relationship of H/L ≥ 0.1 is satisfied.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_epo_espacenet_AU2019387842BB2 |
| source | esp@cenet |
| subjects | BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS |
| title | Propeller fan |
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