Hydraulic priority flow control valve assemblies
The valve assembly 1 has an inlet port 3 from a pump 4, a first outlet port 6 to a power steering unit 8, a second outlet port 9 to an accumulator 10 of a braking system, and an excess flow port 13 to other services or a tank. A flow control valve 14 controls the fluid flow from the inlet port 3 to...
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| creator | MICHAEL STANLEY BARNES GRAHAM JOHN TOOGOOD |
| description | The valve assembly 1 has an inlet port 3 from a pump 4, a first outlet port 6 to a power steering unit 8, a second outlet port 9 to an accumulator 10 of a braking system, and an excess flow port 13 to other services or a tank. A flow control valve 14 controls the fluid flow from the inlet port 3 to the ports 6, 9 and 13, and a load sensing port 42 communicates a load-dependent pressure signal from the power steering unit 8 to the valve 14 so as to provide priority fluid flow to the power steering unit 8. A pilot valve 32 is provided for cutting off the load-dependent pressure signal when the pressure within the accumulator 10 falls below a predetermined value so as to provide for fluid flow from the valve 14 to the accumulator 10, and in addition a pressure difference sensing arrangement 29, 60 communicates the pressure difference across a restrictor 56 to the valve 14 so as to provide fluid flow to the accumulator 10. This assembly permits priority flow from the pump 4 to the power steering unit 8, as well as providing for fluid flow to the accumulator 10, as necessary, and providing excess flow as available to a third device. |
| format | Patent |
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A flow control valve 14 controls the fluid flow from the inlet port 3 to the ports 6, 9 and 13, and a load sensing port 42 communicates a load-dependent pressure signal from the power steering unit 8 to the valve 14 so as to provide priority fluid flow to the power steering unit 8. A pilot valve 32 is provided for cutting off the load-dependent pressure signal when the pressure within the accumulator 10 falls below a predetermined value so as to provide for fluid flow from the valve 14 to the accumulator 10, and in addition a pressure difference sensing arrangement 29, 60 communicates the pressure difference across a restrictor 56 to the valve 14 so as to provide fluid flow to the accumulator 10. This assembly permits priority flow from the pump 4 to the power steering unit 8, as well as providing for fluid flow to the accumulator 10, as necessary, and providing excess flow as available to a third device.</description><edition>5</edition><language>eng</language><subject>BLASTING ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; HEATING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS ; LIGHTING ; MECHANICAL ENGINEERING ; MOTOR VEHICLES ; PERFORMING OPERATIONS ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; TRAILERS ; TRANSPORTING ; WEAPONS</subject><creationdate>1994</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=19941019&DB=EPODOC&CC=GB&NR=2277066A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19941019&DB=EPODOC&CC=GB&NR=2277066A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MICHAEL STANLEY BARNES</creatorcontrib><creatorcontrib>GRAHAM JOHN TOOGOOD</creatorcontrib><title>Hydraulic priority flow control valve assemblies</title><description>The valve assembly 1 has an inlet port 3 from a pump 4, a first outlet port 6 to a power steering unit 8, a second outlet port 9 to an accumulator 10 of a braking system, and an excess flow port 13 to other services or a tank. A flow control valve 14 controls the fluid flow from the inlet port 3 to the ports 6, 9 and 13, and a load sensing port 42 communicates a load-dependent pressure signal from the power steering unit 8 to the valve 14 so as to provide priority fluid flow to the power steering unit 8. A pilot valve 32 is provided for cutting off the load-dependent pressure signal when the pressure within the accumulator 10 falls below a predetermined value so as to provide for fluid flow from the valve 14 to the accumulator 10, and in addition a pressure difference sensing arrangement 29, 60 communicates the pressure difference across a restrictor 56 to the valve 14 so as to provide fluid flow to the accumulator 10. This assembly permits priority flow from the pump 4 to the power steering unit 8, as well as providing for fluid flow to the accumulator 10, as necessary, and providing excess flow as available to a third device.</description><subject>BLASTING</subject><subject>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</subject><subject>FLUID-PRESSURE ACTUATORS</subject><subject>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</subject><subject>HEATING</subject><subject>HYDRAULICS OR PNEUMATICS IN GENERAL</subject><subject>LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>MOTOR VEHICLES</subject><subject>PERFORMING OPERATIONS</subject><subject>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</subject><subject>TRAILERS</subject><subject>TRANSPORTING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDwqEwpSizNyUxWKCjKzC_KLKlUSMvJL1dIzs8rKcrPUShLzClLVUgsLk7NTcrJTC3mYWBNS8wpTuWF0twM8m6uIc4euqkF-fGpxQWJyal5qSXx7k5GRubmBmZmjsaEVQAA-BMrBQ</recordid><startdate>19941019</startdate><enddate>19941019</enddate><creator>MICHAEL STANLEY BARNES</creator><creator>GRAHAM JOHN TOOGOOD</creator><scope>EVB</scope></search><sort><creationdate>19941019</creationdate><title>Hydraulic priority flow control valve assemblies</title><author>MICHAEL STANLEY BARNES ; GRAHAM JOHN TOOGOOD</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_GB2277066A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1994</creationdate><topic>BLASTING</topic><topic>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</topic><topic>HEATING</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>MOTOR VEHICLES</topic><topic>PERFORMING OPERATIONS</topic><topic>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</topic><topic>TRAILERS</topic><topic>TRANSPORTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MICHAEL STANLEY BARNES</creatorcontrib><creatorcontrib>GRAHAM JOHN TOOGOOD</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MICHAEL STANLEY BARNES</au><au>GRAHAM JOHN TOOGOOD</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Hydraulic priority flow control valve assemblies</title><date>1994-10-19</date><risdate>1994</risdate><abstract>The valve assembly 1 has an inlet port 3 from a pump 4, a first outlet port 6 to a power steering unit 8, a second outlet port 9 to an accumulator 10 of a braking system, and an excess flow port 13 to other services or a tank. A flow control valve 14 controls the fluid flow from the inlet port 3 to the ports 6, 9 and 13, and a load sensing port 42 communicates a load-dependent pressure signal from the power steering unit 8 to the valve 14 so as to provide priority fluid flow to the power steering unit 8. A pilot valve 32 is provided for cutting off the load-dependent pressure signal when the pressure within the accumulator 10 falls below a predetermined value so as to provide for fluid flow from the valve 14 to the accumulator 10, and in addition a pressure difference sensing arrangement 29, 60 communicates the pressure difference across a restrictor 56 to the valve 14 so as to provide fluid flow to the accumulator 10. This assembly permits priority flow from the pump 4 to the power steering unit 8, as well as providing for fluid flow to the accumulator 10, as necessary, and providing excess flow as available to a third device.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_epo_espacenet_GB2277066A |
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| subjects | BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING MOTOR VEHICLES PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRAILERS TRANSPORTING WEAPONS |
| title | Hydraulic priority flow control valve assemblies |
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