PUMP

PURPOSE: To depressurize a shaft seal part so as to improve sealing effect, and discharge foreign matter and air simultaneously with water extraction so as to be prevented from being mixed into the shaft seal part by extracting water from a decompression chamber provided rather on the pump interior...

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Hauptverfasser:	KIMURA JINJI, FUJII TAKUYA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS 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
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creator	KIMURA JINJI FUJII TAKUYA
description	PURPOSE: To depressurize a shaft seal part so as to improve sealing effect, and discharge foreign matter and air simultaneously with water extraction so as to be prevented from being mixed into the shaft seal part by extracting water from a decompression chamber provided rather on the pump interior side than a shaft sealing device. CONSTITUTION: A decompression chamber 1 is provided rather on the pump interior side than a shaft seal part 3 in a no-water injection type shaft sealing device, and water is extracted from the decompression chamber 1 by a water extraction pipe 2, so that the interior of the decompression chamber 1 is decompressed to facilitate shaft seal. At this time, water extracting effect can be improved by forming the decompression chamber 1 in volute structure. In addition, a rotary ring 7 is provided on the rotor side, and centrifugal force by the rotor is used to facilitate water extraction and the discharge of foreign matter and air. Further effect can be obtained by forming the rotary ring 7 into a screw type, and the worsening of water permeability of packing caused by the intermixture of air can be prevented.
format	Patent
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CONSTITUTION: A decompression chamber 1 is provided rather on the pump interior side than a shaft seal part 3 in a no-water injection type shaft sealing device, and water is extracted from the decompression chamber 1 by a water extraction pipe 2, so that the interior of the decompression chamber 1 is decompressed to facilitate shaft seal. At this time, water extracting effect can be improved by forming the decompression chamber 1 in volute structure. In addition, a rotary ring 7 is provided on the rotor side, and centrifugal force by the rotor is used to facilitate water extraction and the discharge of foreign matter and air. Further effect can be obtained by forming the rotary ring 7 into a screw type, and the worsening of water permeability of packing caused by the intermixture of air can be prevented.</description><edition>6</edition><language>eng</language><subject>BLASTING ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; NON-POSITIVE DISPLACEMENT PUMPS ; 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>1996</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=19961112&DB=EPODOC&CC=JP&NR=H08296587A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19961112&DB=EPODOC&CC=JP&NR=H08296587A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KIMURA JINJI</creatorcontrib><creatorcontrib>FUJII TAKUYA</creatorcontrib><title>PUMP</title><description>PURPOSE: To depressurize a shaft seal part so as to improve sealing effect, and discharge foreign matter and air simultaneously with water extraction so as to be prevented from being mixed into the shaft seal part by extracting water from a decompression chamber provided rather on the pump interior side than a shaft sealing device. CONSTITUTION: A decompression chamber 1 is provided rather on the pump interior side than a shaft seal part 3 in a no-water injection type shaft sealing device, and water is extracted from the decompression chamber 1 by a water extraction pipe 2, so that the interior of the decompression chamber 1 is decompressed to facilitate shaft seal. At this time, water extracting effect can be improved by forming the decompression chamber 1 in volute structure. In addition, a rotary ring 7 is provided on the rotor side, and centrifugal force by the rotor is used to facilitate water extraction and the discharge of foreign matter and air. Further effect can be obtained by forming the rotary ring 7 into a screw type, and the worsening of water permeability of packing caused by the intermixture of air can be prevented.</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>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>1996</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZGAJCPUN4GFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHgYWRpZmphbmjsbEqAEAw_UaiQ</recordid><startdate>19961112</startdate><enddate>19961112</enddate><creator>KIMURA JINJI</creator><creator>FUJII TAKUYA</creator><scope>EVB</scope></search><sort><creationdate>19961112</creationdate><title>PUMP</title><author>KIMURA JINJI ; FUJII TAKUYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH08296587A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1996</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>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>KIMURA JINJI</creatorcontrib><creatorcontrib>FUJII TAKUYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KIMURA JINJI</au><au>FUJII TAKUYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PUMP</title><date>1996-11-12</date><risdate>1996</risdate><abstract>PURPOSE: To depressurize a shaft seal part so as to improve sealing effect, and discharge foreign matter and air simultaneously with water extraction so as to be prevented from being mixed into the shaft seal part by extracting water from a decompression chamber provided rather on the pump interior side than a shaft sealing device. CONSTITUTION: A decompression chamber 1 is provided rather on the pump interior side than a shaft seal part 3 in a no-water injection type shaft sealing device, and water is extracted from the decompression chamber 1 by a water extraction pipe 2, so that the interior of the decompression chamber 1 is decompressed to facilitate shaft seal. At this time, water extracting effect can be improved by forming the decompression chamber 1 in volute structure. In addition, a rotary ring 7 is provided on the rotor side, and centrifugal force by the rotor is used to facilitate water extraction and the discharge of foreign matter and air. Further effect can be obtained by forming the rotary ring 7 into a screw type, and the worsening of water permeability of packing caused by the intermixture of air can be prevented.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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language	eng
recordid	cdi_epo_espacenet_JPH08296587A
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subjects	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS 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	PUMP
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