SERVOVALVE
A servovalve comprising: a fluid transfer valve assembly comprising a supply port and a control port; a moveable valve spool (2) arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a drive assembly configured to axially move the valve spoo...
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| creator | JASKIEWICZ, ZBIGNIEW |
| description | A servovalve comprising: a fluid transfer valve assembly comprising a supply port and a control port; a moveable valve spool (2) arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a drive assembly configured to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow; wherein the drive assembly comprises a first fluid channel (11') providing a flow path for fluid from the supply port to a first end of the spool (2) and provided with a first flow control orifice (20), a second fluid channel (12') providing a flow path for fluid from the supply port to a second end of the spool (2) and provided with a second flow control orifice (21) and a rotating element (8) provided with a cam profile, located between the first flow control orifice and the second flow control orifice, and drive means (17) arranged to rotate the rotating element (8) to vary the rotational position of the cam profile with respect to the first and second flow control orifice, in response to the control signal, to control flow from the first and second flow control orifice and this to control movement of the valve spool (2). |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CA3048349A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CA3048349A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CA3048349A13</originalsourceid><addsrcrecordid>eNrjZOAKdg0K8w9z9Alz5WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8c6OxgYmFsYmlo6GxkQoAQAxSRuC</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>SERVOVALVE</title><source>esp@cenet</source><creator>JASKIEWICZ, ZBIGNIEW</creator><creatorcontrib>JASKIEWICZ, ZBIGNIEW</creatorcontrib><description>A servovalve comprising: a fluid transfer valve assembly comprising a supply port and a control port; a moveable valve spool (2) arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a drive assembly configured to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow; wherein the drive assembly comprises a first fluid channel (11') providing a flow path for fluid from the supply port to a first end of the spool (2) and provided with a first flow control orifice (20), a second fluid channel (12') providing a flow path for fluid from the supply port to a second end of the spool (2) and provided with a second flow control orifice (21) and a rotating element (8) provided with a cam profile, located between the first flow control orifice and the second flow control orifice, and drive means (17) arranged to rotate the rotating element (8) to vary the rotational position of the cam profile with respect to the first and second flow control orifice, in response to the control signal, to control flow from the first and second flow control orifice and this to control movement of the valve spool (2).</description><language>eng ; fre</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; DEVICES FOR VENTING OR AERATING ; ENGINEERING ELEMENTS AND UNITS ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MECHANICAL ENGINEERING ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>2020</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=20200321&DB=EPODOC&CC=CA&NR=3048349A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200321&DB=EPODOC&CC=CA&NR=3048349A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JASKIEWICZ, ZBIGNIEW</creatorcontrib><title>SERVOVALVE</title><description>A servovalve comprising: a fluid transfer valve assembly comprising a supply port and a control port; a moveable valve spool (2) arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a drive assembly configured to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow; wherein the drive assembly comprises a first fluid channel (11') providing a flow path for fluid from the supply port to a first end of the spool (2) and provided with a first flow control orifice (20), a second fluid channel (12') providing a flow path for fluid from the supply port to a second end of the spool (2) and provided with a second flow control orifice (21) and a rotating element (8) provided with a cam profile, located between the first flow control orifice and the second flow control orifice, and drive means (17) arranged to rotate the rotating element (8) to vary the rotational position of the cam profile with respect to the first and second flow control orifice, in response to the control signal, to control flow from the first and second flow control orifice and this to control movement of the valve spool (2).</description><subject>ACTUATING-FLOATS</subject><subject>BLASTING</subject><subject>COCKS</subject><subject>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</subject><subject>DEVICES FOR VENTING OR AERATING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FLUID-PRESSURE ACTUATORS</subject><subject>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>HYDRAULICS OR PNEUMATICS IN GENERAL</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</subject><subject>TAPS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>VALVES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOAKdg0K8w9z9Alz5WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8c6OxgYmFsYmlo6GxkQoAQAxSRuC</recordid><startdate>20200321</startdate><enddate>20200321</enddate><creator>JASKIEWICZ, ZBIGNIEW</creator><scope>EVB</scope></search><sort><creationdate>20200321</creationdate><title>SERVOVALVE</title><author>JASKIEWICZ, ZBIGNIEW</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA3048349A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2020</creationdate><topic>ACTUATING-FLOATS</topic><topic>BLASTING</topic><topic>COCKS</topic><topic>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</topic><topic>DEVICES FOR VENTING OR AERATING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</topic><topic>TAPS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>VALVES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>JASKIEWICZ, ZBIGNIEW</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JASKIEWICZ, ZBIGNIEW</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SERVOVALVE</title><date>2020-03-21</date><risdate>2020</risdate><abstract>A servovalve comprising: a fluid transfer valve assembly comprising a supply port and a control port; a moveable valve spool (2) arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a drive assembly configured to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow; wherein the drive assembly comprises a first fluid channel (11') providing a flow path for fluid from the supply port to a first end of the spool (2) and provided with a first flow control orifice (20), a second fluid channel (12') providing a flow path for fluid from the supply port to a second end of the spool (2) and provided with a second flow control orifice (21) and a rotating element (8) provided with a cam profile, located between the first flow control orifice and the second flow control orifice, and drive means (17) arranged to rotate the rotating element (8) to vary the rotational position of the cam profile with respect to the first and second flow control orifice, in response to the control signal, to control flow from the first and second flow control orifice and this to control movement of the valve spool (2).</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre |
| recordid | cdi_epo_espacenet_CA3048349A1 |
| source | esp@cenet |
| subjects | ACTUATING-FLOATS BLASTING COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | SERVOVALVE |
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