JP6989548B2 - 建設機械 - Google Patents

建設機械 Download PDF

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Publication number
JP6989548B2
JP6989548B2 JP2019045223A JP2019045223A JP6989548B2 JP 6989548 B2 JP6989548 B2 JP 6989548B2 JP 2019045223 A JP2019045223 A JP 2019045223A JP 2019045223 A JP2019045223 A JP 2019045223A JP 6989548 B2 JP6989548 B2 JP 6989548B2
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Japan
Prior art keywords
pressure
switching valve
maximum load
load pressure
valve
Prior art date
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Active
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JP2019045223A
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English (en)
Japanese (ja)
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JP2020147963A (ja
JP2020147963A5 (enExample
Inventor
夏樹 中村
肇 吉田
圭文 竹林
大輔 岡
拓真 桑原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Tierra Co Ltd
Original Assignee
Hitachi Construction Machinery Tierra Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Hitachi Construction Machinery Tierra Co Ltd filed Critical Hitachi Construction Machinery Tierra Co Ltd
Priority to JP2019045223A priority Critical patent/JP6989548B2/ja
Publication of JP2020147963A publication Critical patent/JP2020147963A/ja
Publication of JP2020147963A5 publication Critical patent/JP2020147963A5/ja
Application granted granted Critical
Publication of JP6989548B2 publication Critical patent/JP6989548B2/ja
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  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
JP2019045223A 2019-03-12 2019-03-12 建設機械 Active JP6989548B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019045223A JP6989548B2 (ja) 2019-03-12 2019-03-12 建設機械

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019045223A JP6989548B2 (ja) 2019-03-12 2019-03-12 建設機械

Publications (3)

Publication Number Publication Date
JP2020147963A JP2020147963A (ja) 2020-09-17
JP2020147963A5 JP2020147963A5 (enExample) 2020-12-24
JP6989548B2 true JP6989548B2 (ja) 2022-01-05

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ID=72431835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019045223A Active JP6989548B2 (ja) 2019-03-12 2019-03-12 建設機械

Country Status (1)

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JP (1) JP6989548B2 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118257899B (zh) * 2024-05-29 2024-08-20 中国空气动力研究与发展中心超高速空气动力研究所 热阀电液控制系统及应用方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11256622A (ja) * 1998-03-13 1999-09-21 Komatsu Ltd 建設機械の油圧制御装置およびその油圧制御方法
JPH11269941A (ja) * 1998-03-25 1999-10-05 Komatsu Ltd 建設機械の油圧制御装置およびその油圧制御方法
JP2012162917A (ja) * 2011-02-07 2012-08-30 Hitachi Constr Mach Co Ltd 油圧ショベルの油圧回路
EP2787127B1 (en) * 2011-11-29 2017-01-11 Hitachi Construction Machinery Co., Ltd. Construction machine
KR101657249B1 (ko) * 2012-04-17 2016-09-13 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 유압시스템
JP2015206420A (ja) * 2014-04-21 2015-11-19 日立建機株式会社 建設機械の油圧駆動装置
JP6564753B2 (ja) * 2016-09-28 2019-08-21 株式会社日立建機ティエラ 建設機械の油圧駆動装置
JP6615137B2 (ja) * 2017-03-01 2019-12-04 株式会社日立建機ティエラ 建設機械の油圧駆動装置

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JP2020147963A (ja) 2020-09-17

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