OIL PUMP
To provide an oil pump which is improved in durability.SOLUTION: A rotor 4 which rotates by a rotation force of a crankshaft 3 has a fitting hole 4b into which two-face widths 301a, 301b of the crankshaft 3 are inserted. The fitting hole 4b has inside circular arc parts 402a, 402b formed at position...
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| creator | MATSUMURA AKIRA SAGA KOJI SAGAWA NOBUAKI |
| description | To provide an oil pump which is improved in durability.SOLUTION: A rotor 4 which rotates by a rotation force of a crankshaft 3 has a fitting hole 4b into which two-face widths 301a, 301b of the crankshaft 3 are inserted. The fitting hole 4b has inside circular arc parts 402a, 402b formed at positions opposing the two-face widths 301a, 301b of the crankshaft 3, and recesses 404a to 404d which are formed at both sides of the inside circular arc parts 402a, 402b in a longitudinal direction. The recesses 404a to 404d have outside circular arc parts 405a to 405d protruding to the outside of a radial direction with respect to a rotation axial line. One-side ends of the outside circular arc parts 405a to 405d and the inside circular arc parts 402a, 402b are connected to each other by curved lines 406a to 406d. Angular parts 303a to 303d which are formed at end parts of the two-face widths 301a, 301b of the crankshaft 3 are arranged at the recesses 404a to 404d.SELECTED DRAWING: Figure 13A
【課題】耐久性を向上させたオイルポンプを提供する。【解決手段】クランクシャフト３の回転力によって回転するロータ４はクランクシャフト３の二面幅３０１ａ，３０１ｂが挿入される嵌合孔４ｂを有する。嵌合孔４ｂはクランクシャフト３の二面幅３０１ａ，３０１ｂと対向するそれぞれの位置に形成された内側円弧部４０２ａ，４０２ｂと、内側円弧部４０２ａ，４０２ｂの長手方向両側のそれぞれに形成された凹部４０４ａ〜４０４ｄとを有する。凹部４０４ａ〜４０４ｄは前記回転軸線に対する径方向外側に突出する外側円弧部４０５ａ〜４０５ｄを有する。外側円弧部４０５ａ〜４０５ｄの一端と内側円弧部４０２ａ，４０２ｂは曲線４０６ａ〜４０６ｄで接続される。凹部４０４ａ〜４０４ｄにはクランクシャフト３の二面幅３０１ａ，３０１ｂの端部に形成された角部３０３ａ〜３０３ｄが配置されるようにした。【選択図】 図１３Ａ |
| format | Patent |
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【課題】耐久性を向上させたオイルポンプを提供する。【解決手段】クランクシャフト３の回転力によって回転するロータ４はクランクシャフト３の二面幅３０１ａ，３０１ｂが挿入される嵌合孔４ｂを有する。嵌合孔４ｂはクランクシャフト３の二面幅３０１ａ，３０１ｂと対向するそれぞれの位置に形成された内側円弧部４０２ａ，４０２ｂと、内側円弧部４０２ａ，４０２ｂの長手方向両側のそれぞれに形成された凹部４０４ａ〜４０４ｄとを有する。凹部４０４ａ〜４０４ｄは前記回転軸線に対する径方向外側に突出する外側円弧部４０５ａ〜４０５ｄを有する。外側円弧部４０５ａ〜４０５ｄの一端と内側円弧部４０２ａ，４０２ｂは曲線４０６ａ〜４０６ｄで接続される。凹部４０４ａ〜４０４ｄにはクランクシャフト３の二面幅３０１ａ，３０１ｂの端部に形成された角部３０３ａ〜３０３ｄが配置されるようにした。【選択図】 図１３Ａ</description><language>eng ; jpn</language><subject>BLASTING ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS ; WEAPONS</subject><creationdate>2021</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=20210805&DB=EPODOC&CC=JP&NR=2021113499A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210805&DB=EPODOC&CC=JP&NR=2021113499A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MATSUMURA AKIRA</creatorcontrib><creatorcontrib>SAGA KOJI</creatorcontrib><creatorcontrib>SAGAWA NOBUAKI</creatorcontrib><title>OIL PUMP</title><description>To provide an oil pump which is improved in durability.SOLUTION: A rotor 4 which rotates by a rotation force of a crankshaft 3 has a fitting hole 4b into which two-face widths 301a, 301b of the crankshaft 3 are inserted. The fitting hole 4b has inside circular arc parts 402a, 402b formed at positions opposing the two-face widths 301a, 301b of the crankshaft 3, and recesses 404a to 404d which are formed at both sides of the inside circular arc parts 402a, 402b in a longitudinal direction. The recesses 404a to 404d have outside circular arc parts 405a to 405d protruding to the outside of a radial direction with respect to a rotation axial line. One-side ends of the outside circular arc parts 405a to 405d and the inside circular arc parts 402a, 402b are connected to each other by curved lines 406a to 406d. Angular parts 303a to 303d which are formed at end parts of the two-face widths 301a, 301b of the crankshaft 3 are arranged at the recesses 404a to 404d.SELECTED DRAWING: Figure 13A
【課題】耐久性を向上させたオイルポンプを提供する。【解決手段】クランクシャフト３の回転力によって回転するロータ４はクランクシャフト３の二面幅３０１ａ，３０１ｂが挿入される嵌合孔４ｂを有する。嵌合孔４ｂはクランクシャフト３の二面幅３０１ａ，３０１ｂと対向するそれぞれの位置に形成された内側円弧部４０２ａ，４０２ｂと、内側円弧部４０２ａ，４０２ｂの長手方向両側のそれぞれに形成された凹部４０４ａ〜４０４ｄとを有する。凹部４０４ａ〜４０４ｄは前記回転軸線に対する径方向外側に突出する外側円弧部４０５ａ〜４０５ｄを有する。外側円弧部４０５ａ〜４０５ｄの一端と内側円弧部４０２ａ，４０２ｂは曲線４０６ａ〜４０６ｄで接続される。凹部４０４ａ〜４０４ｄにはクランクシャフト３の二面幅３０１ａ，３０１ｂの端部に形成された角部３０３ａ〜３０３ｄが配置されるようにした。【選択図】 図１３Ａ</description><subject>BLASTING</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS</subject><subject>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZODw9_RRCAj1DeBhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRoaGhsYmlpaOxkQpAgBRgRup</recordid><startdate>20210805</startdate><enddate>20210805</enddate><creator>MATSUMURA AKIRA</creator><creator>SAGA KOJI</creator><creator>SAGAWA NOBUAKI</creator><scope>EVB</scope></search><sort><creationdate>20210805</creationdate><title>OIL PUMP</title><author>MATSUMURA AKIRA ; SAGA KOJI ; SAGAWA NOBUAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2021113499A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2021</creationdate><topic>BLASTING</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS</topic><topic>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MATSUMURA AKIRA</creatorcontrib><creatorcontrib>SAGA KOJI</creatorcontrib><creatorcontrib>SAGAWA NOBUAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MATSUMURA AKIRA</au><au>SAGA KOJI</au><au>SAGAWA NOBUAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OIL PUMP</title><date>2021-08-05</date><risdate>2021</risdate><abstract>To provide an oil pump which is improved in durability.SOLUTION: A rotor 4 which rotates by a rotation force of a crankshaft 3 has a fitting hole 4b into which two-face widths 301a, 301b of the crankshaft 3 are inserted. The fitting hole 4b has inside circular arc parts 402a, 402b formed at positions opposing the two-face widths 301a, 301b of the crankshaft 3, and recesses 404a to 404d which are formed at both sides of the inside circular arc parts 402a, 402b in a longitudinal direction. The recesses 404a to 404d have outside circular arc parts 405a to 405d protruding to the outside of a radial direction with respect to a rotation axial line. One-side ends of the outside circular arc parts 405a to 405d and the inside circular arc parts 402a, 402b are connected to each other by curved lines 406a to 406d. Angular parts 303a to 303d which are formed at end parts of the two-face widths 301a, 301b of the crankshaft 3 are arranged at the recesses 404a to 404d.SELECTED DRAWING: Figure 13A
【課題】耐久性を向上させたオイルポンプを提供する。【解決手段】クランクシャフト３の回転力によって回転するロータ４はクランクシャフト３の二面幅３０１ａ，３０１ｂが挿入される嵌合孔４ｂを有する。嵌合孔４ｂはクランクシャフト３の二面幅３０１ａ，３０１ｂと対向するそれぞれの位置に形成された内側円弧部４０２ａ，４０２ｂと、内側円弧部４０２ａ，４０２ｂの長手方向両側のそれぞれに形成された凹部４０４ａ〜４０４ｄとを有する。凹部４０４ａ〜４０４ｄは前記回転軸線に対する径方向外側に突出する外側円弧部４０５ａ〜４０５ｄを有する。外側円弧部４０５ａ〜４０５ｄの一端と内側円弧部４０２ａ，４０２ｂは曲線４０６ａ〜４０６ｄで接続される。凹部４０４ａ〜４０４ｄにはクランクシャフト３の二面幅３０１ａ，３０１ｂの端部に形成された角部３０３ａ〜３０３ｄが配置されるようにした。【選択図】 図１３Ａ</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS |
| title | OIL PUMP |
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