KR100813727B1 - 건설기계 - Google Patents
건설기계 Download PDFInfo
- Publication number
- KR100813727B1 KR100813727B1 KR1020030052590A KR20030052590A KR100813727B1 KR 100813727 B1 KR100813727 B1 KR 100813727B1 KR 1020030052590 A KR1020030052590 A KR 1020030052590A KR 20030052590 A KR20030052590 A KR 20030052590A KR 100813727 B1 KR100813727 B1 KR 100813727B1
- Authority
- KR
- South Korea
- Prior art keywords
- hydraulic pump
- motor
- generator
- regenerative motor
- engine
- Prior art date
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Classifications
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- 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
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- 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
- E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools
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- 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
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2062—Control of propulsion units
- E02F9/2075—Control of propulsion units of the hybrid type
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- 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
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
-
- 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
- E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
- E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/12—Parameters of driving or driven means
- F04B2201/1202—Torque on the axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/06—Motor parameters of internal combustion engines
- F04B2203/0603—Torque
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
Claims (5)
- 엔진(1)과 엔진(1)에 의해 구동되는 유압펌프(2)와, 유압펌프(2)로부터의 토출유에 의해 구동되는 액츄에이터(4)를 갖는 건설기계에 있어서,상기 액츄에이터(4)로부터의 반송유로 회전하는 회생모터(8)를 상기 유압펌프(2)의 회전축에 접속하고, 상기 유압펌프(2)에서 필요한 구동토크가 상기 회생모터(8)의 작동에 의해 발생하는 출력토크 보다도 큰 경우에는 상기 엔진(1)과 회생모터(8)에 의해 유압펌프(2)를 구동하는 한편, 상기 유압펌프(2)에서 필요한 구동토크가 상기 회생모터(8)의 작동에 의해 발생하는 출력토크 보다도 작은 경우에는 상기 회생모터(8)에 의해 유압펌프(2)를 구동함과 동시에, 상기 유압펌프(2)를 구동하는 것에 이용되지 않은 남은 에너지에 의해 상기 회생모터(8)의 회전축에 접속된 발전기(11)를 발전작동하고, 이 발전전력을 축전장치(12)에 축전하도록 구성한 것을 특징으로 하는 건설기계.
- 제 1 항에 있어서,상기 발전기(11)는 축전장치(12)에 축전된 전력을 사용하여 모터 작동하는 발전기로서의 기능을 구비하고 있고, 상기 발전기(11)를 모터 작동시키는 것에 의해서 상기 유압펌프(2)의 구동을 돕도록 구성한 것을 특징으로 하는 건설기계.
- 제 1 항 또는 제 2 항에 있어서,상기 발전기(11)의 회전축과 회생모터(8)의 회전축을 각각 유압펌프(2)의 회 전축과는 별도로 설치하고, 연동수단을 통하여 상기 발전기(11), 유압펌프(2), 회생모터(8)를 각각 연동가능하게 구성한 것을 특징으로 하는 건설기계.
- 제 1 항 또는 제 2 항에 있어서,상기 발전기(11)의 회전축과, 회생모터(8)의 회전축 중 적어도 어느 한쪽의 회전축에는 상기 유압펌프(2)의 회전축에 대해서 축토크의 전달, 절단을 실시하기 위한 클러치(17),(18)를 설치한 것을 특징으로 하는 건설기계.
- 제 1 항 또는 제 2 항에 있어서,상기 회생모터(8)의 회전속도에 대한 발전기(11)의 회전속도를 변화시키기 위한 무단변속기(24)를 양자간에 설치한 것을 특징으로 하는 건설기계.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002223077 | 2002-07-31 | ||
JPJP-P-2002-00223077 | 2002-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040012539A KR20040012539A (ko) | 2004-02-11 |
KR100813727B1 true KR100813727B1 (ko) | 2008-03-13 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020030052590A KR100813727B1 (ko) | 2002-07-31 | 2003-07-30 | 건설기계 |
Country Status (3)
Country | Link |
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US (1) | US7086226B2 (ko) |
JP (1) | JP4179465B2 (ko) |
KR (1) | KR100813727B1 (ko) |
Cited By (1)
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KR20040012539A (ko) | 2004-02-11 |
JP4179465B2 (ja) | 2008-11-12 |
US20050036894A1 (en) | 2005-02-17 |
US7086226B2 (en) | 2006-08-08 |
JP2004084470A (ja) | 2004-03-18 |
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