JP2004205019A5 - - Google Patents

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Publication number
JP2004205019A5
JP2004205019A5 JP2002378158A JP2002378158A JP2004205019A5 JP 2004205019 A5 JP2004205019 A5 JP 2004205019A5 JP 2002378158 A JP2002378158 A JP 2002378158A JP 2002378158 A JP2002378158 A JP 2002378158A JP 2004205019 A5 JP2004205019 A5 JP 2004205019A5
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JP
Japan
Prior art keywords
pump
supplied
section
oil
parallel
Prior art date
Legal status (The legal status 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 status listed.)
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Application number
JP2002378158A
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English (en)
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JP3992612B2 (ja
JP2004205019A (ja
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Publication date
Application filed filed Critical
Priority to JP2002378158A priority Critical patent/JP3992612B2/ja
Priority claimed from JP2002378158A external-priority patent/JP3992612B2/ja
Priority to US10/649,601 priority patent/US7069674B2/en
Priority to DE10339428A priority patent/DE10339428B4/de
Priority to FR0315452A priority patent/FR2849457B1/fr
Publication of JP2004205019A publication Critical patent/JP2004205019A/ja
Publication of JP2004205019A5 publication Critical patent/JP2004205019A5/ja
Application granted granted Critical
Publication of JP3992612B2 publication Critical patent/JP3992612B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Claims (1)

  1. 第１ポンプおよび第２ポンプからの圧油を左右走行用のセクションに独立供給するとともに、左右走行用のセクションの油を合流して、フロント作業装置用のセクションに供給するよう構成し、
    第３ポンプからの圧油を、旋回用のセクションにおけるセンター油路、および、旋回用のセクションと並列に配置されるとともに絞りを介在したパラレル油路を経てフロント作業装置用のセクションに供給するよう構成し、
    かつ、フロント作業系の検出負荷に応じて前記第１ポンプおよび第２ポンプを流量制御するロードセンシングシステムを備えてあることを特徴とするバックホウの油圧回路構造。
JP2002378158A 2002-12-26 2002-12-26 バックホウの油圧回路構造 Expired - Fee Related JP3992612B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002378158A JP3992612B2 (ja) 2002-12-26 2002-12-26 バックホウの油圧回路構造
US10/649,601 US7069674B2 (en) 2002-12-26 2003-08-26 Hydraulic circuit for backhoe
DE10339428A DE10339428B4 (de) 2002-12-26 2003-08-27 Hydraulikkreis für Löffelbagger
FR0315452A FR2849457B1 (fr) 2002-12-26 2003-12-26 Circuit hydraulique pour pelle mecanique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002378158A JP3992612B2 (ja) 2002-12-26 2002-12-26 バックホウの油圧回路構造

Publications (3)

Publication Number Publication Date
JP2004205019A JP2004205019A (ja) 2004-07-22
JP2004205019A5 true JP2004205019A5 (ja) 2005-08-25
JP3992612B2 JP3992612B2 (ja) 2007-10-17

Family

ID=32501135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002378158A Expired - Fee Related JP3992612B2 (ja) 2002-12-26 2002-12-26 バックホウの油圧回路構造

Country Status (4)

Country Link
US (1) US7069674B2 (ja)
JP (1) JP3992612B2 (ja)
DE (1) DE10339428B4 (ja)
FR (1) FR2849457B1 (ja)

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