FUEL PUMP
PROBLEM TO BE SOLVED: To provide a fuel pump preventing wear of an impeller by eliminating pressure difference of fuel applied on a surface of the impeller and improving pump efficiency. SOLUTION: This fuel pump has a small groove communicating to a pressure raising groove provided on a front face o...
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| creator | II SEIJI |
| description | PROBLEM TO BE SOLVED: To provide a fuel pump preventing wear of an impeller by eliminating pressure difference of fuel applied on a surface of the impeller and improving pump efficiency. SOLUTION: This fuel pump has a small groove communicating to a pressure raising groove provided on a front face of the impeller and has a large groove communicating to the pressure raising groove formed on a back face or a recess part composed of a through hole and an intermediate part having roughly blade like cross section shape formed inside of the pressure raising groove of the impeller. Fuel passes through the groove communicating to a blade or the recess part and presses the impeller when the impeller rotates, to eliminate pressure difference of fuel applied on the front face and the back face of the impeller. Consequently, since pressure difference is eliminated, the impeller and a casing do not contact and impeller is not worn. Since position of the impeller is not shifted, clearance between the impeller and the casing can be made small. COPYRIGHT: (C)2005,JPO&NCIPI |
| format | Patent |
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SOLUTION: This fuel pump has a small groove communicating to a pressure raising groove provided on a front face of the impeller and has a large groove communicating to the pressure raising groove formed on a back face or a recess part composed of a through hole and an intermediate part having roughly blade like cross section shape formed inside of the pressure raising groove of the impeller. Fuel passes through the groove communicating to a blade or the recess part and presses the impeller when the impeller rotates, to eliminate pressure difference of fuel applied on the front face and the back face of the impeller. Consequently, since pressure difference is eliminated, the impeller and a casing do not contact and impeller is not worn. Since position of the impeller is not shifted, clearance between the impeller and the casing can be made small. COPYRIGHT: (C)2005,JPO&NCIPI</description><edition>7</edition><language>eng</language><subject>BLASTING ; COMBUSTION ENGINES ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MECHANICAL ENGINEERING ; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF ; WEAPONS</subject><creationdate>2005</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=20050609&DB=EPODOC&CC=JP&NR=2005147033A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050609&DB=EPODOC&CC=JP&NR=2005147033A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>II SEIJI</creatorcontrib><title>FUEL PUMP</title><description>PROBLEM TO BE SOLVED: To provide a fuel pump preventing wear of an impeller by eliminating pressure difference of fuel applied on a surface of the impeller and improving pump efficiency. SOLUTION: This fuel pump has a small groove communicating to a pressure raising groove provided on a front face of the impeller and has a large groove communicating to the pressure raising groove formed on a back face or a recess part composed of a through hole and an intermediate part having roughly blade like cross section shape formed inside of the pressure raising groove of the impeller. Fuel passes through the groove communicating to a blade or the recess part and presses the impeller when the impeller rotates, to eliminate pressure difference of fuel applied on the front face and the back face of the impeller. Consequently, since pressure difference is eliminated, the impeller and a casing do not contact and impeller is not worn. Since position of the impeller is not shifted, clearance between the impeller and the casing can be made small. COPYRIGHT: (C)2005,JPO&NCIPI</description><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOB0C3X1UQgI9Q3gYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBgamhibmBsbGjsZEKQIAbMwb5A</recordid><startdate>20050609</startdate><enddate>20050609</enddate><creator>II SEIJI</creator><scope>EVB</scope></search><sort><creationdate>20050609</creationdate><title>FUEL PUMP</title><author>II SEIJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2005147033A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2005</creationdate><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>II SEIJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>II SEIJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>FUEL PUMP</title><date>2005-06-09</date><risdate>2005</risdate><abstract>PROBLEM TO BE SOLVED: To provide a fuel pump preventing wear of an impeller by eliminating pressure difference of fuel applied on a surface of the impeller and improving pump efficiency. SOLUTION: This fuel pump has a small groove communicating to a pressure raising groove provided on a front face of the impeller and has a large groove communicating to the pressure raising groove formed on a back face or a recess part composed of a through hole and an intermediate part having roughly blade like cross section shape formed inside of the pressure raising groove of the impeller. Fuel passes through the groove communicating to a blade or the recess part and presses the impeller when the impeller rotates, to eliminate pressure difference of fuel applied on the front face and the back face of the impeller. Consequently, since pressure difference is eliminated, the impeller and a casing do not contact and impeller is not worn. Since position of the impeller is not shifted, clearance between the impeller and the casing can be made small. COPYRIGHT: (C)2005,JPO&NCIPI</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS |
| title | FUEL PUMP |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-29T20%3A21%3A29IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=II%20SEIJI&rft.date=2005-06-09&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2005147033A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |