CONTROL DEVICE FOR PLURALITY OF ACTUATORS
PURPOSE: To provide a control device having a plurality of actuators which prevents reduction of a discharge rate of a specified actuator when a high pressure small flow rate is required through abrupt increase of a discharge pressure of a variable pump, and never restricts a flow rate to be supplie...
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| creator | NAITO HISATO YAMAMURA MAKOTO |
| description | PURPOSE: To provide a control device having a plurality of actuators which prevents reduction of a discharge rate of a specified actuator when a high pressure small flow rate is required through abrupt increase of a discharge pressure of a variable pump, and never restricts a flow rate to be supplied to the other actuator when a low pressure large flow rate is required. CONSTITUTION: A downstream side of a pressure compensation valve connected to a changeover valve for controlling a specified actuator is communicated with one actuator of a changeover valve for controlling the other actuator through a joining passage 63, while a communication valve 30 is provided on the passage 63. Pilot pressure for changing over the changeover valve for controlling the other actuator is introduced to a pilot chamber 56b of the communication valve 30. When a spool 52 is moved by the pilot pressure, an inflow port 60 is communicated with a through-hole 65. When pressure fluid introduced from the inflow port 60 to the through-hole 65 reaches a specified value, a check valve is opened for introducing the fluid from the through-hole 65 to an outflow port 61. |
| format | Patent |
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CONSTITUTION: A downstream side of a pressure compensation valve connected to a changeover valve for controlling a specified actuator is communicated with one actuator of a changeover valve for controlling the other actuator through a joining passage 63, while a communication valve 30 is provided on the passage 63. Pilot pressure for changing over the changeover valve for controlling the other actuator is introduced to a pilot chamber 56b of the communication valve 30. When a spool 52 is moved by the pilot pressure, an inflow port 60 is communicated with a through-hole 65. When pressure fluid introduced from the inflow port 60 to the through-hole 65 reaches a specified value, a check valve is opened for introducing the fluid from the through-hole 65 to an outflow port 61.</description><edition>6</edition><language>eng</language><subject>BLASTING ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; DREDGING ; FIXED CONSTRUCTIONS ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; FOUNDATIONS ; HEATING ; HYDRAULIC ENGINEERING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MECHANICAL ENGINEERING ; SOIL SHIFTING ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; 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=19961001&DB=EPODOC&CC=JP&NR=H08254201A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19961001&DB=EPODOC&CC=JP&NR=H08254201A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAITO HISATO</creatorcontrib><creatorcontrib>YAMAMURA MAKOTO</creatorcontrib><title>CONTROL DEVICE FOR PLURALITY OF ACTUATORS</title><description>PURPOSE: To provide a control device having a plurality of actuators which prevents reduction of a discharge rate of a specified actuator when a high pressure small flow rate is required through abrupt increase of a discharge pressure of a variable pump, and never restricts a flow rate to be supplied to the other actuator when a low pressure large flow rate is required. CONSTITUTION: A downstream side of a pressure compensation valve connected to a changeover valve for controlling a specified actuator is communicated with one actuator of a changeover valve for controlling the other actuator through a joining passage 63, while a communication valve 30 is provided on the passage 63. Pilot pressure for changing over the changeover valve for controlling the other actuator is introduced to a pilot chamber 56b of the communication valve 30. When a spool 52 is moved by the pilot pressure, an inflow port 60 is communicated with a through-hole 65. When pressure fluid introduced from the inflow port 60 to the through-hole 65 reaches a specified value, a check valve is opened for introducing the fluid from the through-hole 65 to an outflow port 61.</description><subject>BLASTING</subject><subject>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</subject><subject>DREDGING</subject><subject>FIXED CONSTRUCTIONS</subject><subject>FLUID-PRESSURE ACTUATORS</subject><subject>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</subject><subject>FOUNDATIONS</subject><subject>HEATING</subject><subject>HYDRAULIC ENGINEERING</subject><subject>HYDRAULICS OR PNEUMATICS IN GENERAL</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>SOIL SHIFTING</subject><subject>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1996</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNB09vcLCfL3UXBxDfN0dlVw8w9SCPAJDXL08QyJVPB3U3B0Dgl1DPEPCuZhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfFeAR4GFkamJkYGho7GxKgBAD0SJKc</recordid><startdate>19961001</startdate><enddate>19961001</enddate><creator>NAITO HISATO</creator><creator>YAMAMURA MAKOTO</creator><scope>EVB</scope></search><sort><creationdate>19961001</creationdate><title>CONTROL DEVICE FOR PLURALITY OF ACTUATORS</title><author>NAITO HISATO ; YAMAMURA MAKOTO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH08254201A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1996</creationdate><topic>BLASTING</topic><topic>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</topic><topic>DREDGING</topic><topic>FIXED CONSTRUCTIONS</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</topic><topic>FOUNDATIONS</topic><topic>HEATING</topic><topic>HYDRAULIC ENGINEERING</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>SOIL SHIFTING</topic><topic>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>NAITO HISATO</creatorcontrib><creatorcontrib>YAMAMURA MAKOTO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAITO HISATO</au><au>YAMAMURA MAKOTO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CONTROL DEVICE FOR PLURALITY OF ACTUATORS</title><date>1996-10-01</date><risdate>1996</risdate><abstract>PURPOSE: To provide a control device having a plurality of actuators which prevents reduction of a discharge rate of a specified actuator when a high pressure small flow rate is required through abrupt increase of a discharge pressure of a variable pump, and never restricts a flow rate to be supplied to the other actuator when a low pressure large flow rate is required. CONSTITUTION: A downstream side of a pressure compensation valve connected to a changeover valve for controlling a specified actuator is communicated with one actuator of a changeover valve for controlling the other actuator through a joining passage 63, while a communication valve 30 is provided on the passage 63. Pilot pressure for changing over the changeover valve for controlling the other actuator is introduced to a pilot chamber 56b of the communication valve 30. When a spool 52 is moved by the pilot pressure, an inflow port 60 is communicated with a through-hole 65. When pressure fluid introduced from the inflow port 60 to the through-hole 65 reaches a specified value, a check valve is opened for introducing the fluid from the through-hole 65 to an outflow port 61.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS |
| title | CONTROL DEVICE FOR PLURALITY OF ACTUATORS |
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