WO2006079178A1 - Hydraulic fluid cooling apparatus and method - Google Patents
Hydraulic fluid cooling apparatus and method Download PDFInfo
- Publication number
- WO2006079178A1 WO2006079178A1 PCT/AU2006/000105 AU2006000105W WO2006079178A1 WO 2006079178 A1 WO2006079178 A1 WO 2006079178A1 AU 2006000105 W AU2006000105 W AU 2006000105W WO 2006079178 A1 WO2006079178 A1 WO 2006079178A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydraulic
- hydraulic fluid
- pump
- fluid
- charge pump
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 142
- 238000001816 cooling Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 6
- 238000005086 pumping Methods 0.000 claims abstract description 12
- 230000002706 hydrostatic effect Effects 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
- F15B2211/20592—Combinations of pumps for supplying high and low pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/61—Secondary circuits
- F15B2211/613—Feeding circuits
Definitions
- a closed-loop hydrostatic drive apparatus is designed to transmit 100 kilowatts of power, and the external or induced load causes an intermittent power demand of 120 kilowatts which is met by increasing the pressure in the high pressure section of the apparatus' hydraulic circuit, the temperature of the hydraulic fluid in the apparatus rises above its normal operating or "plateau" temperature. This increased temperature of the hydraulic fluid diminishes the performance of the apparatus and can only be reduced by stopping the operation of the apparatus for a sufficient period of time or by operating the apparatus for a relatively prolonged period of time at a load demand which is well below the 100 kilowatts which the apparatus is designed to transmit.
- German patent document no. 3500310Al Mannesmann Rexroth GmbH
- the pressure of the hydraulic fluid between the charge pump and the main pump is relatively constant. This allows for more reliable performance of a suitably designed fluid cooler.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007552464A JP2008528889A (en) | 2005-01-28 | 2006-01-30 | Working fluid cooling device and working fluid cooling method |
US11/795,895 US7690197B2 (en) | 2005-01-28 | 2006-01-30 | Hydraulic fluid cooling apparatus and method |
AU2006208437A AU2006208437B2 (en) | 2005-01-28 | 2006-01-30 | Hydraulic fluid cooling apparatus and method |
EP06704790A EP1888924A4 (en) | 2005-01-28 | 2006-01-30 | Hydraulic fluid cooling apparatus and method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2005900356 | 2005-01-28 | ||
AU2005900356A AU2005900356A0 (en) | 2005-01-28 | Hydraulic Fluid Cooling Apparatus and Method | |
AU2005905874A AU2005905874A0 (en) | 2005-10-24 | Hydraulic Fluid Cooling Apparatus and Method | |
AU2005905874 | 2005-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006079178A1 true WO2006079178A1 (en) | 2006-08-03 |
Family
ID=36739980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2006/000105 WO2006079178A1 (en) | 2005-01-28 | 2006-01-30 | Hydraulic fluid cooling apparatus and method |
Country Status (5)
Country | Link |
---|---|
US (1) | US7690197B2 (en) |
EP (1) | EP1888924A4 (en) |
JP (1) | JP2008528889A (en) |
KR (1) | KR20070106740A (en) |
WO (1) | WO2006079178A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013122531A1 (en) * | 2012-02-17 | 2013-08-22 | Atlas Copco Construction Tools Ab | Separate hydraulic unit with cooling of oil |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107532462A (en) * | 2015-02-15 | 2018-01-02 | 越洋创新实验室有限公司 | BOP control system and correlation technique |
CN109798283A (en) * | 2019-01-21 | 2019-05-24 | 江苏大学 | One kind remotely controlling more relay protective scheme function central pumping stations |
WO2021040756A1 (en) | 2019-08-30 | 2021-03-04 | Ag Max, Llc | Airborne grapple saw system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3500310A1 (en) * | 1985-01-07 | 1986-07-10 | Mannesmann Rexroth GmbH, 8770 Lohr | Hydraulic system for variable-delivery pumps |
SU1609611A1 (en) * | 1987-12-15 | 1990-11-30 | Краснодарское Станкостроительное Производственное Объединение Им.Г.М.Седина | Hydraulic system |
US5317872A (en) * | 1989-11-08 | 1994-06-07 | Hakan Ingvast | Device for improvement of running condition in hydraulic system |
US5709085A (en) * | 1993-11-19 | 1998-01-20 | O & K Orenstein & Koppel Ag | Method of cooling the hydraulic fluid in the working circuit of a construction machine, in particular a hydraulic excavator |
JPH1061617A (en) * | 1996-08-13 | 1998-03-06 | Taihei Dengiyou Kk | Circuital structure for hydraulic system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3222865A (en) * | 1964-11-20 | 1965-12-14 | Case Co J I | Hydraulic apparatus and method |
US3543844A (en) * | 1968-05-17 | 1970-12-01 | Air Reduction | Multiple-pass heat exchanger for cryogenic systems |
CH566500A5 (en) * | 1973-05-17 | 1975-09-15 | Sulzer Ag | |
US6739127B2 (en) * | 2002-06-07 | 2004-05-25 | Caterpillar Inc | Hydraulic system pump charging and recirculation apparatus |
-
2006
- 2006-01-30 KR KR1020077019540A patent/KR20070106740A/en not_active Application Discontinuation
- 2006-01-30 US US11/795,895 patent/US7690197B2/en not_active Expired - Fee Related
- 2006-01-30 EP EP06704790A patent/EP1888924A4/en not_active Withdrawn
- 2006-01-30 JP JP2007552464A patent/JP2008528889A/en not_active Withdrawn
- 2006-01-30 WO PCT/AU2006/000105 patent/WO2006079178A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3500310A1 (en) * | 1985-01-07 | 1986-07-10 | Mannesmann Rexroth GmbH, 8770 Lohr | Hydraulic system for variable-delivery pumps |
SU1609611A1 (en) * | 1987-12-15 | 1990-11-30 | Краснодарское Станкостроительное Производственное Объединение Им.Г.М.Седина | Hydraulic system |
US5317872A (en) * | 1989-11-08 | 1994-06-07 | Hakan Ingvast | Device for improvement of running condition in hydraulic system |
US5709085A (en) * | 1993-11-19 | 1998-01-20 | O & K Orenstein & Koppel Ag | Method of cooling the hydraulic fluid in the working circuit of a construction machine, in particular a hydraulic excavator |
JPH1061617A (en) * | 1996-08-13 | 1998-03-06 | Taihei Dengiyou Kk | Circuital structure for hydraulic system |
Non-Patent Citations (3)
Title |
---|
DATABASE WPI Week 199131, Derwent World Patents Index; Class P56, AN 1991-229151, XP008114378 * |
PATENT ABSTRACTS OF JAPAN * |
See also references of EP1888924A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013122531A1 (en) * | 2012-02-17 | 2013-08-22 | Atlas Copco Construction Tools Ab | Separate hydraulic unit with cooling of oil |
CN104160161A (en) * | 2012-02-17 | 2014-11-19 | 建筑设备私人有限公司 | Separate hydraulic unit with cooling of oil |
AU2013220955B2 (en) * | 2012-02-17 | 2017-02-02 | Construction Tools Pc Ab | Separate hydraulic unit with cooling of oil |
US9670942B2 (en) | 2012-02-17 | 2017-06-06 | Construction Tools Pc Ab | Separate hydraulic unit with cooling of oil |
Also Published As
Publication number | Publication date |
---|---|
KR20070106740A (en) | 2007-11-05 |
JP2008528889A (en) | 2008-07-31 |
US20080163619A1 (en) | 2008-07-10 |
EP1888924A1 (en) | 2008-02-20 |
US7690197B2 (en) | 2010-04-06 |
EP1888924A4 (en) | 2012-05-09 |
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