Injection valve
Die Erfindung betrifft ein Dosierventil bestehend aus einem Gehäuse 2 mit einer Ventilnadel 7 in einem Ventilraum 18 einem Piezoaktor 4 in einem Aktorraum 17 sowie einer Hydraulikkammer 3 und einem Ausgleichsraum 13, jeweils gefüllt mit einem Hydraulikfluid. Ein derartiges Dosierventil enthält im Be...
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| creator | GOTTLIEB, BERNHARD KENDLBACHER, CHRISTOPH KAPPEL, ANDREAS |
| description | Die Erfindung betrifft ein Dosierventil bestehend aus einem Gehäuse 2 mit einer Ventilnadel 7 in einem Ventilraum 18 einem Piezoaktor 4 in einem Aktorraum 17 sowie einer Hydraulikkammer 3 und einem Ausgleichsraum 13, jeweils gefüllt mit einem Hydraulikfluid. Ein derartiges Dosierventil enthält im Bereich des Hydraulikfluides ein hydraulisches Längenausgleichselement. Erfindungsgemäß steht das Hydraulikfluid unter einem Vordruck zur Vermeidung von Kavitation.
A metering or proportioning valve for a fluid (a liquid or a gas) has a housing (2) with a valve cavity (18) for receiving a valve needle (7) which forms a valve with the housing wall. An actuator cavity (17) is provided for accommodating the piezo- actuator (4) in which a hydraulic piston (1) supports the piezo- actuator (4) on the side facing away from the valve needle (7). An equalisation cavity (13) is joined to the hydraulic chamber (3), both being filled with a pressurised hydraulic fluid, the join being formed by a throttle or restriction diaphragm (12) or by the combination of a packed sealing gap (21) with an equalising/balancing boring (20), such that the system, hydraulic chamber- equalising cavity- hydraulic fluid, forms a dynamically rigid bearing for the piezo-actuator and a length equalising element for more protracted processes. |
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A metering or proportioning valve for a fluid (a liquid or a gas) has a housing (2) with a valve cavity (18) for receiving a valve needle (7) which forms a valve with the housing wall. An actuator cavity (17) is provided for accommodating the piezo- actuator (4) in which a hydraulic piston (1) supports the piezo- actuator (4) on the side facing away from the valve needle (7). An equalisation cavity (13) is joined to the hydraulic chamber (3), both being filled with a pressurised hydraulic fluid, the join being formed by a throttle or restriction diaphragm (12) or by the combination of a packed sealing gap (21) with an equalising/balancing boring (20), such that the system, hydraulic chamber- equalising cavity- hydraulic fluid, forms a dynamically rigid bearing for the piezo-actuator and a length equalising element for more protracted processes.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; COMBUSTION ENGINES ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DEVICES FOR VENTING OR AERATING ; ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; GENERATION ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MECHANICAL ENGINEERING ; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>2001</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=20010228&DB=EPODOC&CC=EP&NR=1079099A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20010228&DB=EPODOC&CC=EP&NR=1079099A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GOTTLIEB, BERNHARD</creatorcontrib><creatorcontrib>KENDLBACHER, CHRISTOPH</creatorcontrib><creatorcontrib>KAPPEL, ANDREAS</creatorcontrib><title>Injection valve</title><description>Die Erfindung betrifft ein Dosierventil bestehend aus einem Gehäuse 2 mit einer Ventilnadel 7 in einem Ventilraum 18 einem Piezoaktor 4 in einem Aktorraum 17 sowie einer Hydraulikkammer 3 und einem Ausgleichsraum 13, jeweils gefüllt mit einem Hydraulikfluid. Ein derartiges Dosierventil enthält im Bereich des Hydraulikfluides ein hydraulisches Längenausgleichselement. Erfindungsgemäß steht das Hydraulikfluid unter einem Vordruck zur Vermeidung von Kavitation.
A metering or proportioning valve for a fluid (a liquid or a gas) has a housing (2) with a valve cavity (18) for receiving a valve needle (7) which forms a valve with the housing wall. An actuator cavity (17) is provided for accommodating the piezo- actuator (4) in which a hydraulic piston (1) supports the piezo- actuator (4) on the side facing away from the valve needle (7). An equalisation cavity (13) is joined to the hydraulic chamber (3), both being filled with a pressurised hydraulic fluid, the join being formed by a throttle or restriction diaphragm (12) or by the combination of a packed sealing gap (21) with an equalising/balancing boring (20), such that the system, hydraulic chamber- equalising cavity- hydraulic fluid, forms a dynamically rigid bearing for the piezo-actuator and a length equalising element for more protracted processes.</description><subject>ACTUATING-FLOATS</subject><subject>BLASTING</subject><subject>COCKS</subject><subject>COMBUSTION ENGINES</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>DEVICES FOR VENTING OR AERATING</subject><subject>ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>GENERATION</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>TAPS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>VALVES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2001</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOD3zMtKTS7JzM9TKEvMKUvlYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgGGBuaWBpaWjkbGRCgBAEkkHoc</recordid><startdate>20010228</startdate><enddate>20010228</enddate><creator>GOTTLIEB, BERNHARD</creator><creator>KENDLBACHER, CHRISTOPH</creator><creator>KAPPEL, ANDREAS</creator><scope>EVB</scope></search><sort><creationdate>20010228</creationdate><title>Injection valve</title><author>GOTTLIEB, BERNHARD ; KENDLBACHER, CHRISTOPH ; KAPPEL, ANDREAS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1079099A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2001</creationdate><topic>ACTUATING-FLOATS</topic><topic>BLASTING</topic><topic>COCKS</topic><topic>COMBUSTION ENGINES</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>DEVICES FOR VENTING OR AERATING</topic><topic>ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>GENERATION</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>TAPS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>VALVES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>GOTTLIEB, BERNHARD</creatorcontrib><creatorcontrib>KENDLBACHER, CHRISTOPH</creatorcontrib><creatorcontrib>KAPPEL, ANDREAS</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GOTTLIEB, BERNHARD</au><au>KENDLBACHER, CHRISTOPH</au><au>KAPPEL, ANDREAS</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Injection valve</title><date>2001-02-28</date><risdate>2001</risdate><abstract>Die Erfindung betrifft ein Dosierventil bestehend aus einem Gehäuse 2 mit einer Ventilnadel 7 in einem Ventilraum 18 einem Piezoaktor 4 in einem Aktorraum 17 sowie einer Hydraulikkammer 3 und einem Ausgleichsraum 13, jeweils gefüllt mit einem Hydraulikfluid. Ein derartiges Dosierventil enthält im Bereich des Hydraulikfluides ein hydraulisches Längenausgleichselement. Erfindungsgemäß steht das Hydraulikfluid unter einem Vordruck zur Vermeidung von Kavitation.
A metering or proportioning valve for a fluid (a liquid or a gas) has a housing (2) with a valve cavity (18) for receiving a valve needle (7) which forms a valve with the housing wall. An actuator cavity (17) is provided for accommodating the piezo- actuator (4) in which a hydraulic piston (1) supports the piezo- actuator (4) on the side facing away from the valve needle (7). An equalisation cavity (13) is joined to the hydraulic chamber (3), both being filled with a pressurised hydraulic fluid, the join being formed by a throttle or restriction diaphragm (12) or by the combination of a packed sealing gap (21) with an equalising/balancing boring (20), such that the system, hydraulic chamber- equalising cavity- hydraulic fluid, forms a dynamically rigid bearing for the piezo-actuator and a length equalising element for more protracted processes.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACTUATING-FLOATS BLASTING COCKS COMBUSTION ENGINES CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DEVICES FOR VENTING OR AERATING ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | Injection valve |
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