OIL-PRESSURE CIRCUIT

PURPOSE:To prevent the stoppage of turning during the composite operation with a turning motor for increasing the speed of an arm cylinder during the single operation of the arm cylinder by providing a parallel circuit with a check valve and a sequence valve and a bypass circuit from other pump to t...

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1. Verfasser:	FUJIKAWA HIROAKI
Format:	Patent
Sprache:	eng
Schlagworte:	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
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creator	FUJIKAWA HIROAKI
description	PURPOSE:To prevent the stoppage of turning during the composite operation with a turning motor for increasing the speed of an arm cylinder during the single operation of the arm cylinder by providing a parallel circuit with a check valve and a sequence valve and a bypass circuit from other pump to the arm cylinder of an oil-pressure shovel. CONSTITUTION:During the synchronous operation of an arm cylinder 6 and turning motors 7 and 8, the motors 7 and 8 are driven by a pressure properly set for a sequence valve 3. Since, in this case, an excess oil coming into the motors 7 and 8 passes through the sequence valve 3 to operate the cylinder 6, the stoppage of the motors 7 and 8 due to the flow of all oil in the cylinder 6 of small load does not occur. During the single operation of the motors 7 and 8, since the check valve 5 is provided even when the sequence valve 3 is opened, direct application of pressures to the motors 7 and 8 directly through a tank 19 does not take place. Also, during the operation of the cylinder 6, oil is supplied to a switch valve 12 through a neutral pass 22, a tandem pass 18, and the check valve 5, whereby the oil of other pump is directed from the pass 16 into the passes 17 and 18 and the speed of the cylinder is increased.
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CONSTITUTION:During the synchronous operation of an arm cylinder 6 and turning motors 7 and 8, the motors 7 and 8 are driven by a pressure properly set for a sequence valve 3. Since, in this case, an excess oil coming into the motors 7 and 8 passes through the sequence valve 3 to operate the cylinder 6, the stoppage of the motors 7 and 8 due to the flow of all oil in the cylinder 6 of small load does not occur. During the single operation of the motors 7 and 8, since the check valve 5 is provided even when the sequence valve 3 is opened, direct application of pressures to the motors 7 and 8 directly through a tank 19 does not take place. Also, during the operation of the cylinder 6, oil is supplied to a switch valve 12 through a neutral pass 22, a tandem pass 18, and the check valve 5, whereby the oil of other pump is directed from the pass 16 into the passes 17 and 18 and the speed of the cylinder is increased.</description><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>1983</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=19830502&DB=EPODOC&CC=JP&NR=S5873628A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19830502&DB=EPODOC&CC=JP&NR=S5873628A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FUJIKAWA HIROAKI</creatorcontrib><title>OIL-PRESSURE CIRCUIT</title><description>PURPOSE:To prevent the stoppage of turning during the composite operation with a turning motor for increasing the speed of an arm cylinder during the single operation of the arm cylinder by providing a parallel circuit with a check valve and a sequence valve and a bypass circuit from other pump to the arm cylinder of an oil-pressure shovel. CONSTITUTION:During the synchronous operation of an arm cylinder 6 and turning motors 7 and 8, the motors 7 and 8 are driven by a pressure properly set for a sequence valve 3. Since, in this case, an excess oil coming into the motors 7 and 8 passes through the sequence valve 3 to operate the cylinder 6, the stoppage of the motors 7 and 8 due to the flow of all oil in the cylinder 6 of small load does not occur. During the single operation of the motors 7 and 8, since the check valve 5 is provided even when the sequence valve 3 is opened, direct application of pressures to the motors 7 and 8 directly through a tank 19 does not take place. Also, during the operation of the cylinder 6, oil is supplied to a switch valve 12 through a neutral pass 22, a tandem pass 18, and the check valve 5, whereby the oil of other pump is directed from the pass 16 into the passes 17 and 18 and the speed of the cylinder is increased.</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>1983</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBDx9_TRDQhyDQ4ODXJVcPYMcg71DOFhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfFeAcGmFubGZkYWjsZEKAEAVhUevA</recordid><startdate>19830502</startdate><enddate>19830502</enddate><creator>FUJIKAWA HIROAKI</creator><scope>EVB</scope></search><sort><creationdate>19830502</creationdate><title>OIL-PRESSURE CIRCUIT</title><author>FUJIKAWA HIROAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS5873628A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1983</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>FUJIKAWA HIROAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FUJIKAWA HIROAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OIL-PRESSURE CIRCUIT</title><date>1983-05-02</date><risdate>1983</risdate><abstract>PURPOSE:To prevent the stoppage of turning during the composite operation with a turning motor for increasing the speed of an arm cylinder during the single operation of the arm cylinder by providing a parallel circuit with a check valve and a sequence valve and a bypass circuit from other pump to the arm cylinder of an oil-pressure shovel. CONSTITUTION:During the synchronous operation of an arm cylinder 6 and turning motors 7 and 8, the motors 7 and 8 are driven by a pressure properly set for a sequence valve 3. Since, in this case, an excess oil coming into the motors 7 and 8 passes through the sequence valve 3 to operate the cylinder 6, the stoppage of the motors 7 and 8 due to the flow of all oil in the cylinder 6 of small load does not occur. During the single operation of the motors 7 and 8, since the check valve 5 is provided even when the sequence valve 3 is opened, direct application of pressures to the motors 7 and 8 directly through a tank 19 does not take place. Also, during the operation of the cylinder 6, oil is supplied to a switch valve 12 through a neutral pass 22, a tandem pass 18, and the check valve 5, whereby the oil of other pump is directed from the pass 16 into the passes 17 and 18 and the speed of the cylinder is increased.</abstract><oa>free_for_read</oa></addata></record>
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language	eng
recordid	cdi_epo_espacenet_JPS5873628A
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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	OIL-PRESSURE CIRCUIT
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