VANE PUMP
A vane pump in which noise can be suppressed is provided. A vane pump (1) includes: a housing (2) having a peripheral wall portion (200), a bottom wall portion (201), and a pump chamber (A); a rotor (3) disposed in the pump chamber (A) to be rotatable; a vane (4) disposed to be slidable in the radia...
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| creator | MIYARA Naoyuki HARA Hiroki UTO Akihiro KIYOMIYA Shinsuke SUZUKI Yuji FUJII Akira |
| description | A vane pump in which noise can be suppressed is provided. A vane pump (1) includes: a housing (2) having a peripheral wall portion (200), a bottom wall portion (201), and a pump chamber (A); a rotor (3) disposed in the pump chamber (A) to be rotatable; a vane (4) disposed to be slidable in the radial direction with respect to the rotor (3) and partitioning the pump chamber (A) into working chambers (A1, A2); and a reed valve (5) that opens and closes a discharge hole (201a) of the bottom wall portion (201). A position at which the sliding direction of the vane (4) with respect to the rotor (3) is inverted from outward in the radial direction to inward is defined as a reference position (θ1), and a section of the pump chamber (A) on the discharge hole (201a) side with respect to the reference position (θ1) is defined as a discharge section (AD). A pressure relief groove (201b) is disposed in a portion of the bottom wall portion (201) corresponding to the discharge section (AD) with a clearance (E) secured between the peripheral wall portion (200) and the pressure relief groove (201b). When the vane (4) overlaps the pressure relief groove (201b), a pair of the working chambers (A1, A2) on both sides of the vane (4) in the rotational direction communicate with each other via the pressure relief groove (201b). |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP3536959A4</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP3536959A4</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP3536959A43</originalsourceid><addsrcrecordid>eNrjZOAMc_RzVQgI9Q3gYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgHGpsZmlqaWjibGRCgBAAcdGzo</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>VANE PUMP</title><source>esp@cenet</source><creator>MIYARA Naoyuki ; HARA Hiroki ; UTO Akihiro ; KIYOMIYA Shinsuke ; SUZUKI Yuji ; FUJII Akira</creator><creatorcontrib>MIYARA Naoyuki ; HARA Hiroki ; UTO Akihiro ; KIYOMIYA Shinsuke ; SUZUKI Yuji ; FUJII Akira</creatorcontrib><description>A vane pump in which noise can be suppressed is provided. A vane pump (1) includes: a housing (2) having a peripheral wall portion (200), a bottom wall portion (201), and a pump chamber (A); a rotor (3) disposed in the pump chamber (A) to be rotatable; a vane (4) disposed to be slidable in the radial direction with respect to the rotor (3) and partitioning the pump chamber (A) into working chambers (A1, A2); and a reed valve (5) that opens and closes a discharge hole (201a) of the bottom wall portion (201). A position at which the sliding direction of the vane (4) with respect to the rotor (3) is inverted from outward in the radial direction to inward is defined as a reference position (θ1), and a section of the pump chamber (A) on the discharge hole (201a) side with respect to the reference position (θ1) is defined as a discharge section (AD). A pressure relief groove (201b) is disposed in a portion of the bottom wall portion (201) corresponding to the discharge section (AD) with a clearance (E) secured between the peripheral wall portion (200) and the pressure relief groove (201b). When the vane (4) overlaps the pressure relief groove (201b), a pair of the working chambers (A1, A2) on both sides of the vane (4) in the rotational direction communicate with each other via the pressure relief groove (201b).</description><language>eng ; fre ; ger</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>2019</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=20190918&DB=EPODOC&CC=EP&NR=3536959A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190918&DB=EPODOC&CC=EP&NR=3536959A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MIYARA Naoyuki</creatorcontrib><creatorcontrib>HARA Hiroki</creatorcontrib><creatorcontrib>UTO Akihiro</creatorcontrib><creatorcontrib>KIYOMIYA Shinsuke</creatorcontrib><creatorcontrib>SUZUKI Yuji</creatorcontrib><creatorcontrib>FUJII Akira</creatorcontrib><title>VANE PUMP</title><description>A vane pump in which noise can be suppressed is provided. A vane pump (1) includes: a housing (2) having a peripheral wall portion (200), a bottom wall portion (201), and a pump chamber (A); a rotor (3) disposed in the pump chamber (A) to be rotatable; a vane (4) disposed to be slidable in the radial direction with respect to the rotor (3) and partitioning the pump chamber (A) into working chambers (A1, A2); and a reed valve (5) that opens and closes a discharge hole (201a) of the bottom wall portion (201). A position at which the sliding direction of the vane (4) with respect to the rotor (3) is inverted from outward in the radial direction to inward is defined as a reference position (θ1), and a section of the pump chamber (A) on the discharge hole (201a) side with respect to the reference position (θ1) is defined as a discharge section (AD). A pressure relief groove (201b) is disposed in a portion of the bottom wall portion (201) corresponding to the discharge section (AD) with a clearance (E) secured between the peripheral wall portion (200) and the pressure relief groove (201b). When the vane (4) overlaps the pressure relief groove (201b), a pair of the working chambers (A1, A2) on both sides of the vane (4) in the rotational direction communicate with each other via the pressure relief groove (201b).</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>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOAMc_RzVQgI9Q3gYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgHGpsZmlqaWjibGRCgBAAcdGzo</recordid><startdate>20190918</startdate><enddate>20190918</enddate><creator>MIYARA Naoyuki</creator><creator>HARA Hiroki</creator><creator>UTO Akihiro</creator><creator>KIYOMIYA Shinsuke</creator><creator>SUZUKI Yuji</creator><creator>FUJII Akira</creator><scope>EVB</scope></search><sort><creationdate>20190918</creationdate><title>VANE PUMP</title><author>MIYARA Naoyuki ; HARA Hiroki ; UTO Akihiro ; KIYOMIYA Shinsuke ; SUZUKI Yuji ; FUJII Akira</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3536959A43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2019</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>MIYARA Naoyuki</creatorcontrib><creatorcontrib>HARA Hiroki</creatorcontrib><creatorcontrib>UTO Akihiro</creatorcontrib><creatorcontrib>KIYOMIYA Shinsuke</creatorcontrib><creatorcontrib>SUZUKI Yuji</creatorcontrib><creatorcontrib>FUJII Akira</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MIYARA Naoyuki</au><au>HARA Hiroki</au><au>UTO Akihiro</au><au>KIYOMIYA Shinsuke</au><au>SUZUKI Yuji</au><au>FUJII Akira</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VANE PUMP</title><date>2019-09-18</date><risdate>2019</risdate><abstract>A vane pump in which noise can be suppressed is provided. A vane pump (1) includes: a housing (2) having a peripheral wall portion (200), a bottom wall portion (201), and a pump chamber (A); a rotor (3) disposed in the pump chamber (A) to be rotatable; a vane (4) disposed to be slidable in the radial direction with respect to the rotor (3) and partitioning the pump chamber (A) into working chambers (A1, A2); and a reed valve (5) that opens and closes a discharge hole (201a) of the bottom wall portion (201). A position at which the sliding direction of the vane (4) with respect to the rotor (3) is inverted from outward in the radial direction to inward is defined as a reference position (θ1), and a section of the pump chamber (A) on the discharge hole (201a) side with respect to the reference position (θ1) is defined as a discharge section (AD). A pressure relief groove (201b) is disposed in a portion of the bottom wall portion (201) corresponding to the discharge section (AD) with a clearance (E) secured between the peripheral wall portion (200) and the pressure relief groove (201b). When the vane (4) overlaps the pressure relief groove (201b), a pair of the working chambers (A1, A2) on both sides of the vane (4) in the rotational direction communicate with each other via the pressure relief groove (201b).</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
| recordid | cdi_epo_espacenet_EP3536959A4 |
| source | esp@cenet |
| 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 | VANE PUMP |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-09T20%3A26%3A17IST&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=MIYARA%20Naoyuki&rft.date=2019-09-18&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EEP3536959A4%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 |