SOLENOID VALVE

PROBLEM TO BE SOLVED: To maintain the motion performance of a valve element over a long term. SOLUTION: In this solenoid valve, a core side stopper 21 is provided in the core 7 attracting a plunger 15 and its tip position is retreated from the attraction surface 7b facing to the plunger 15. A plunge...

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1. Verfasser:	WATANABE YASUTOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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creator	WATANABE YASUTOSHI
description	PROBLEM TO BE SOLVED: To maintain the motion performance of a valve element over a long term. SOLUTION: In this solenoid valve, a core side stopper 21 is provided in the core 7 attracting a plunger 15 and its tip position is retreated from the attraction surface 7b facing to the plunger 15. A plunger side stopper 22 projecting from the end 15a facing to the attraction surface 7b into the core 7 is provided on the plunger 15. When the plunger 15 is attracted to the core 7, the plunger side stopper 22 is contacted with the core side stopper 21 inside the core 7 and a magnetic gap with a prescribed size L1 is ensured between the core 7 and plunger 15. A high shock resistance can be ensured on the plunger side stopper 22 and the damage during its use term is prevented. By applying a nitriding process to the plunger side stopper 22 and core side stopper 21, the change of the magnetic gap by wearing is prevented.
format	Patent
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SOLUTION: In this solenoid valve, a core side stopper 21 is provided in the core 7 attracting a plunger 15 and its tip position is retreated from the attraction surface 7b facing to the plunger 15. A plunger side stopper 22 projecting from the end 15a facing to the attraction surface 7b into the core 7 is provided on the plunger 15. When the plunger 15 is attracted to the core 7, the plunger side stopper 22 is contacted with the core side stopper 21 inside the core 7 and a magnetic gap with a prescribed size L1 is ensured between the core 7 and plunger 15. A high shock resistance can be ensured on the plunger side stopper 22 and the damage during its use term is prevented. By applying a nitriding process to the plunger side stopper 22 and core side stopper 21, the change of the magnetic gap by wearing is prevented.</description><edition>7</edition><language>eng</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; DEVICES FOR VENTING OR AERATING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>2000</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=20000919&DB=EPODOC&CC=JP&NR=2000257741A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000919&DB=EPODOC&CC=JP&NR=2000257741A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WATANABE YASUTOSHI</creatorcontrib><title>SOLENOID VALVE</title><description>PROBLEM TO BE SOLVED: To maintain the motion performance of a valve element over a long term. SOLUTION: In this solenoid valve, a core side stopper 21 is provided in the core 7 attracting a plunger 15 and its tip position is retreated from the attraction surface 7b facing to the plunger 15. A plunger side stopper 22 projecting from the end 15a facing to the attraction surface 7b into the core 7 is provided on the plunger 15. When the plunger 15 is attracted to the core 7, the plunger side stopper 22 is contacted with the core side stopper 21 inside the core 7 and a magnetic gap with a prescribed size L1 is ensured between the core 7 and plunger 15. A high shock resistance can be ensured on the plunger side stopper 22 and the damage during its use term is prevented. By applying a nitriding process to the plunger side stopper 22 and core side stopper 21, the change of the magnetic gap by wearing is prevented.</description><subject>ACTUATING-FLOATS</subject><subject>BLASTING</subject><subject>COCKS</subject><subject>DEVICES FOR VENTING OR AERATING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>TAPS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>VALVES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOAL9vdx9fP3dFEIc_QJc-VhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGBgZGpubmJoaOxkQpAgABzh1c</recordid><startdate>20000919</startdate><enddate>20000919</enddate><creator>WATANABE YASUTOSHI</creator><scope>EVB</scope></search><sort><creationdate>20000919</creationdate><title>SOLENOID VALVE</title><author>WATANABE YASUTOSHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2000257741A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2000</creationdate><topic>ACTUATING-FLOATS</topic><topic>BLASTING</topic><topic>COCKS</topic><topic>DEVICES FOR VENTING OR AERATING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>TAPS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>VALVES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>WATANABE YASUTOSHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WATANABE YASUTOSHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SOLENOID VALVE</title><date>2000-09-19</date><risdate>2000</risdate><abstract>PROBLEM TO BE SOLVED: To maintain the motion performance of a valve element over a long term. SOLUTION: In this solenoid valve, a core side stopper 21 is provided in the core 7 attracting a plunger 15 and its tip position is retreated from the attraction surface 7b facing to the plunger 15. A plunger side stopper 22 projecting from the end 15a facing to the attraction surface 7b into the core 7 is provided on the plunger 15. When the plunger 15 is attracted to the core 7, the plunger side stopper 22 is contacted with the core side stopper 21 inside the core 7 and a magnetic gap with a prescribed size L1 is ensured between the core 7 and plunger 15. A high shock resistance can be ensured on the plunger side stopper 22 and the damage during its use term is prevented. By applying a nitriding process to the plunger side stopper 22 and core side stopper 21, the change of the magnetic gap by wearing is prevented.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
title	SOLENOID VALVE
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