SHOVEL

A shovel includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, an engine mounted on the upper swing structure, a first hydraulic pump and a second hydraulic pump each configured to be driven by the engine, a first regulator configured to c...

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Hauptverfasser:	SANO, Kiminori, SHIRATANI, Ryuji
Format:	Patent
Sprache:	eng
Schlagworte:	DREDGING FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING
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creator	SANO, Kiminori SHIRATANI, Ryuji
description	A shovel includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, an engine mounted on the upper swing structure, a first hydraulic pump and a second hydraulic pump each configured to be driven by the engine, a first regulator configured to control the first geometric displacement of the first hydraulic pump, a second regulator configured to control the second geometric displacement of the second hydraulic pump, and processing circuitry configured to electrically control the first and second regulators. Each of the first and second hydraulic pumps is an electrically controlled variable displacement hydraulic pump. The processing circuitry is configured to calculate the limit value of the first and second geometric displacements based on the respective discharge pressures of the first and second hydraulic pumps, and to control each of the first and second geometric displacements based on the calculated limit value.
format	Patent
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Each of the first and second hydraulic pumps is an electrically controlled variable displacement hydraulic pump. The processing circuitry is configured to calculate the limit value of the first and second geometric displacements based on the respective discharge pressures of the first and second hydraulic pumps, and to control each of the first and second geometric displacements based on the calculated limit value.</description><language>eng</language><subject>DREDGING ; FIXED CONSTRUCTIONS ; FOUNDATIONS ; HYDRAULIC ENGINEERING ; SOIL SHIFTING</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=20220113&DB=EPODOC&CC=US&NR=2022010529A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220113&DB=EPODOC&CC=US&NR=2022010529A1$$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>SHOVEL</title><description>A shovel includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, an engine mounted on the upper swing structure, a first hydraulic pump and a second hydraulic pump each configured to be driven by the engine, a first regulator configured to control the first geometric displacement of the first hydraulic pump, a second regulator configured to control the second geometric displacement of the second hydraulic pump, and processing circuitry configured to electrically control the first and second regulators. Each of the first and second hydraulic pumps is an electrically controlled variable displacement hydraulic pump. The processing circuitry is configured to calculate the limit value of the first and second geometric displacements based on the respective discharge pressures of the first and second hydraulic pumps, and to control each of the first and second geometric displacements based on the calculated limit value.</description><subject>DREDGING</subject><subject>FIXED CONSTRUCTIONS</subject><subject>FOUNDATIONS</subject><subject>HYDRAULIC ENGINEERING</subject><subject>SOIL SHIFTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZGAL9vAPc_XhYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXxocFGBkZGBoYGpkaWjobGxKkCAFnDG6A</recordid><startdate>20220113</startdate><enddate>20220113</enddate><creator>SANO, Kiminori</creator><creator>SHIRATANI, Ryuji</creator><scope>EVB</scope></search><sort><creationdate>20220113</creationdate><title>SHOVEL</title><author>SANO, Kiminori ; SHIRATANI, Ryuji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2022010529A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2022</creationdate><topic>DREDGING</topic><topic>FIXED CONSTRUCTIONS</topic><topic>FOUNDATIONS</topic><topic>HYDRAULIC ENGINEERING</topic><topic>SOIL SHIFTING</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>SHOVEL</title><date>2022-01-13</date><risdate>2022</risdate><abstract>A shovel includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, an engine mounted on the upper swing structure, a first hydraulic pump and a second hydraulic pump each configured to be driven by the engine, a first regulator configured to control the first geometric displacement of the first hydraulic pump, a second regulator configured to control the second geometric displacement of the second hydraulic pump, and processing circuitry configured to electrically control the first and second regulators. Each of the first and second hydraulic pumps is an electrically controlled variable displacement hydraulic pump. The processing circuitry is configured to calculate the limit value of the first and second geometric displacements based on the respective discharge pressures of the first and second hydraulic pumps, and to control each of the first and second geometric displacements based on the calculated limit value.</abstract><oa>free_for_read</oa></addata></record>
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subjects	DREDGING FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING
title	SHOVEL
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