KR900701592A - 건설차량의 유압회로장치 - Google Patents
건설차량의 유압회로장치Info
- Publication number
- KR900701592A KR900701592A KR1019900700076A KR900700076A KR900701592A KR 900701592 A KR900701592 A KR 900701592A KR 1019900700076 A KR1019900700076 A KR 1019900700076A KR 900700076 A KR900700076 A KR 900700076A KR 900701592 A KR900701592 A KR 900701592A
- Authority
- KR
- South Korea
- Prior art keywords
- hydraulic circuit
- pilot
- pressure
- work machine
- construction vehicle
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
- E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance including an electronic controller
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP?63-63420 | 1988-05-16 | ||
JP1988063420U JP2511629Y2 (ja) | 1988-05-16 | 1988-05-16 | 油圧回路 |
PCT/JP1989/000496 WO1989011411A1 (en) | 1988-05-16 | 1989-05-16 | Hydraulic circuit device of construction vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
KR900701592A true KR900701592A (ko) | 1990-12-03 |
Family
ID=13228780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900700076A KR900701592A (ko) | 1988-05-16 | 1989-05-16 | 건설차량의 유압회로장치 |
Country Status (7)
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0776859A (ja) * | 1993-09-09 | 1995-03-20 | Hitachi Constr Mach Co Ltd | 建設機械の油圧駆動装置 |
US5577435A (en) * | 1996-03-11 | 1996-11-26 | New Holland North America, Inc. | High flow hydraulic circuit for tractors |
US6321535B2 (en) * | 1997-11-21 | 2001-11-27 | Komatsu Ltd. | Hydraulic circuit for working vehicle |
US6357231B1 (en) | 2000-05-09 | 2002-03-19 | Clark Equipment Company | Hydraulic pump circuit for mini excavators |
KR100471836B1 (ko) * | 2002-05-09 | 2005-03-08 | 현대자동차주식회사 | 듀얼 서킷형 비상 동력 조향 장치 |
ITMO20070097A1 (it) * | 2007-03-20 | 2008-09-21 | Safim S P A | "apparato idraulico" |
WO2009019974A1 (ja) * | 2007-08-09 | 2009-02-12 | Komatsu Ltd. | 作業車両及び作業車両の作動油量制御方法 |
US8051651B2 (en) * | 2007-08-30 | 2011-11-08 | Coneqtec Corp. | Hydraulic flow control system |
JP5351813B2 (ja) * | 2010-03-31 | 2013-11-27 | 株式会社クボタ | 作業車の油圧システム |
CN113606207B (zh) * | 2021-06-28 | 2022-07-05 | 徐工集团工程机械股份有限公司科技分公司 | 一种装载机液压系统及装载机 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1952034A1 (de) * | 1969-10-15 | 1971-04-22 | Linde Ag | Steuereinrichtung fuer eine hydraulische Anlage und Ventil hierzu |
US4030623A (en) * | 1971-12-13 | 1977-06-21 | Caterpillar Tractor Co. | Hydraulic circuitry for an excavator |
DE2208842C2 (de) * | 1972-02-25 | 1983-09-01 | Robert Bosch Gmbh, 7000 Stuttgart | Antrieb einer Lenkeinrichtung und mehrerer Zubehörgeräte für Fahrzeuge durch ein hydrostatisches Getriebe |
JPS5614118Y2 (US20100223739A1-20100909-C00025.png) * | 1973-09-11 | 1981-04-02 | ||
FR2250908B3 (US20100223739A1-20100909-C00025.png) * | 1973-11-14 | 1977-08-12 | Massey Ferguson Services Nv | |
US3868821A (en) * | 1974-03-20 | 1975-03-04 | Tyrone Hydraulics | Automatic pump control system |
US3975909A (en) * | 1975-02-26 | 1976-08-24 | Tyrone Hydraulics, Inc. | Engine sensor hydraulic control system |
US3987623A (en) * | 1976-01-23 | 1976-10-26 | Caterpillar Tractor Co. | Controlled priority fluid system of a crawler type vehicle |
DE2808196A1 (de) * | 1978-02-25 | 1979-09-06 | Bosch Gmbh Robert | Hydraulische steuereinrichtung |
JPS5614118U (US20100223739A1-20100909-C00025.png) * | 1979-07-13 | 1981-02-06 | ||
JPS5614118A (en) * | 1979-07-16 | 1981-02-10 | Raito Kogyo Kk | Measuring instrument for volume of fluid |
DE3044171A1 (de) * | 1980-11-24 | 1982-06-16 | Linde Ag, 6200 Wiesbaden | Antriebssystem mit mindestens zwei teilsystemen |
JPS57177403A (en) * | 1981-04-25 | 1982-11-01 | Daikin Ind Ltd | Combined flow type flow control circuit associated with pressure compensation |
JPS5817052A (ja) * | 1981-07-23 | 1983-02-01 | Mitsubishi Electric Corp | リ−ル駆動電動機の制御装置 |
JPS5932515B2 (ja) * | 1981-09-11 | 1984-08-09 | 信越化学工業株式会社 | ウレタン樹脂用離型剤 |
JPS5845297U (ja) * | 1981-09-21 | 1983-03-26 | 三菱重工業株式会社 | フォ−クリフトの油圧回路 |
DE3702002A1 (de) * | 1987-01-23 | 1988-08-04 | Hydromatik Gmbh | Steuervorrichtung fuer ein hydrostatisches getriebe fuer wenigstens zwei verbraucher |
-
1988
- 1988-05-16 JP JP1988063420U patent/JP2511629Y2/ja not_active Expired - Lifetime
-
1989
- 1989-05-16 WO PCT/JP1989/000496 patent/WO1989011411A1/ja active IP Right Grant
- 1989-05-16 KR KR1019900700076A patent/KR900701592A/ko not_active Application Discontinuation
- 1989-05-16 DE DE68926854T patent/DE68926854T2/de not_active Expired - Fee Related
- 1989-05-16 AU AU35655/89A patent/AU630353B2/en not_active Expired - Fee Related
- 1989-05-16 US US07/460,060 patent/US5127227A/en not_active Expired - Fee Related
- 1989-05-16 EP EP89905759A patent/EP0404946B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5127227A (en) | 1992-07-07 |
AU3565589A (en) | 1989-12-12 |
WO1989011411A1 (en) | 1989-11-30 |
DE68926854T2 (de) | 1997-01-02 |
DE68926854D1 (de) | 1996-08-22 |
JP2511629Y2 (ja) | 1996-09-25 |
EP0404946B1 (en) | 1996-07-17 |
EP0404946A1 (en) | 1991-01-02 |
EP0404946A4 (en) | 1991-07-03 |
JPH01165766U (US20100223739A1-20100909-C00025.png) | 1989-11-20 |
AU630353B2 (en) | 1992-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |