EXCAVATOR
A shovel (100) includes a lower traveling structure (1), an upper swing structure (3), an engine (11), an electrically controlled left main pump (14L), an electrically controlled right main pump (14R), a left regulator (13L) that controls the geometric displacement of the left main pump (14L), a rig...
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| creator | SANO, Kiminori SHIRATANI, Ryuji |
| description | A shovel (100) includes a lower traveling structure (1), an upper swing structure (3), an engine (11), an electrically controlled left main pump (14L), an electrically controlled right main pump (14R), a left regulator (13L) that controls the geometric displacement of the left main pump (14L), a right regulator (13R) that controls the geometric displacement of the right main pump (14R), and a controller (30) that electrically controls the left regulator (13L) and the right regulator (13R). The controller (30) calculates the limit value of the respective geometric displacements of the left main pump (14L) and the right main pump (14R) based on discharge pressures with respect to the left main pump (14L) and the right main pump (14R), and controls the respective geometric displacements of the left main pump (14L) and the right main pump (14R) based on the calculated limit value. |
| format | Patent |
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The controller (30) calculates the limit value of the respective geometric displacements of the left main pump (14L) and the right main pump (14R) based on discharge pressures with respect to the left main pump (14L) and the right main pump (14R), and controls the respective geometric displacements of the left main pump (14L) and the right main pump (14R) based on the calculated limit value.</description><language>eng ; fre ; ger</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>2022</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=20220601&DB=EPODOC&CC=EP&NR=3951092A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220601&DB=EPODOC&CC=EP&NR=3951092A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SANO, Kiminori</creatorcontrib><creatorcontrib>SHIRATANI, Ryuji</creatorcontrib><title>EXCAVATOR</title><description>A shovel (100) includes a lower traveling structure (1), an upper swing structure (3), an engine (11), an electrically controlled left main pump (14L), an electrically controlled right main pump (14R), a left regulator (13L) that controls the geometric displacement of the left main pump (14L), a right regulator (13R) that controls the geometric displacement of the right main pump (14R), and a controller (30) that electrically controls the left regulator (13L) and the right regulator (13R). The controller (30) calculates the limit value of the respective geometric displacements of the left main pump (14L) and the right main pump (14R) based on discharge pressures with respect to the left main pump (14L) and the right main pump (14R), and controls the respective geometric displacements of the left main pump (14L) and the right main pump (14R) based on the calculated limit value.</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>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOB0jXB2DHMM8Q_iYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgHGlqaGBpZGjibGRCgBABDnG0U</recordid><startdate>20220601</startdate><enddate>20220601</enddate><creator>SANO, Kiminori</creator><creator>SHIRATANI, Ryuji</creator><scope>EVB</scope></search><sort><creationdate>20220601</creationdate><title>EXCAVATOR</title><author>SANO, Kiminori ; SHIRATANI, Ryuji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3951092A43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2022</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>SANO, Kiminori</creatorcontrib><creatorcontrib>SHIRATANI, Ryuji</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SANO, Kiminori</au><au>SHIRATANI, Ryuji</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>EXCAVATOR</title><date>2022-06-01</date><risdate>2022</risdate><abstract>A shovel (100) includes a lower traveling structure (1), an upper swing structure (3), an engine (11), an electrically controlled left main pump (14L), an electrically controlled right main pump (14R), a left regulator (13L) that controls the geometric displacement of the left main pump (14L), a right regulator (13R) that controls the geometric displacement of the right main pump (14R), and a controller (30) that electrically controls the left regulator (13L) and the right regulator (13R). The controller (30) calculates the limit value of the respective geometric displacements of the left main pump (14L) and the right main pump (14R) based on discharge pressures with respect to the left main pump (14L) and the right main pump (14R), and controls the respective geometric displacements of the left main pump (14L) and the right main pump (14R) based on the calculated limit value.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| source | esp@cenet |
| 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 | EXCAVATOR |
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