EP1730464A1 - Cooling device - Google Patents
Cooling deviceInfo
- Publication number
- EP1730464A1 EP1730464A1 EP05715721A EP05715721A EP1730464A1 EP 1730464 A1 EP1730464 A1 EP 1730464A1 EP 05715721 A EP05715721 A EP 05715721A EP 05715721 A EP05715721 A EP 05715721A EP 1730464 A1 EP1730464 A1 EP 1730464A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- cooling
- unit
- cooling device
- cooling unit
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
- F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
Definitions
- the invention relates to a cooling device with a cooling unit through which a fluid to be cooled, in particular hydraulic oil, has a device housing and with at least one filter unit for the filtration of the fluid.
- Such cooling devices can be used for a large number of applications and are available in a wide variety of designs.
- the cooling device systems that have been freely available on the market so far all consist either of a filter unit flanged to the cooling unit or of tank units connected to cooling units, the respective tank unit then holding the filter element.
- the known cooling devices are therefore usually composed of several components, the independent cooling unit being connected to the independent filter unit by means of corresponding piping to produce the cooling device. It cannot be ruled out here that the piping mentioned leads to incorrect connections and thus to sources of error when installing the known cooling devices.
- the known cooling device solutions build on their variety of parts is structurally large, and are correspondingly heavy, which is particularly disadvantageous for mobile use.
- a disadvantage of this known solution is that when the used filter element is exchanged for a new one, the device housing of the cooling unit has to be opened, which takes up a corresponding amount of time, and when the used filter element is removed from the device housing of the cooling unit, fluid components get to the outside, which can lead to contamination with appropriate post-cleaning processes.
- CH 533 246 discloses a device for storing, filtering and cooling liquid medium, in particular for a hydraulic system, with a liquid container, a deflection housing being arranged in a vertical passage opening enclosed by the jacket-shaped container above a blower, which receives a filter through which flow flows from top to bottom, which forms an annular cooling channel with the container and through which the filtered liquid flow flows from bottom to top. Furthermore, from its upper end outgoing connecting lines to the Container connected so that the now downward liquid flow remains in the effective area of the cooling channel.
- the relevant connecting lines together with a connection for the oil return from the hydraulic system, form arms with which the deflection housing can be supported and fastened on the top of the tank.
- the object of the invention is to further improve the known cooling devices while maintaining their advantages in that they are compact and light in construction, that there is no need for complex piping between the cooling and filter unit, and that contamination occurs an exchange of the respective filter element can be avoided.
- a cooling device with the features of claim 1 in its entirety solves this problem.
- the device housing of the cooling unit has at least one projecting support arm via which the respective filter unit is fluidly connected to the cooling unit, the filter unit with the filter element is arranged outside the actual device housing of the cooling unit, and yet integrative connected to the same via the support arm.
- the support arm can be an integral part of the cooling unit with its device housing, there is no need for complex piping in addition to the associated sealing systems and, in particular, the fluid paths can be kept short, which is favorable in terms of energy balance for the overall cooling device.
- the filter housing itself is no longer directly an integral part of the device housing of the cooling unit, but is arranged externally via the support arm, the overall construction weight is nevertheless reduced and, in addition to a compact design, the cooling device according to the invention is also inexpensive to manufacture and, as already shown, inexpensive to maintain , since complex post-cleaning work due to escaping hydraulic medium on the cooling device is not necessary in any case.
- the filter unit is arranged behind the cooling unit in the flow direction of the fluid, so that the filter element is thermally protected.
- the cooling unit is preferably designed as a plate-shaped lamella cooler, so that the plate design in question proves to be advantageous in particular in the case of installation spaces which are kept flat.
- the device housing is preferably composed of sheet metal parts and, because of the modular structure, the manufacturing costs can be reduced. But there is also the possibility of designing the lamella cooler as a cast part, in particular as an aluminum die-cast part.
- the cooling device can be adapted to a wide variety of volume flows, with the result that the cooling device can be used in a wide range of applications with different orders of magnitude of fluid volume flows, without design changes being necessary. It has also proven to be particularly environmentally friendly to construct the respective filter element from materials that can be completely incinerated, so that residue-free disposal is largely achieved.
- a motor-fan unit is connected to the cooling unit, in particular to an end face thereof, which increases the necessary air throughput in the lamella cooler and thus leads to improved cooling results.
- a clogging indicator is attached to the support arm in the area of the connection cover, this allows a statement to be made about the degree of contamination of the filter element, that in the clogged or nearly clogged state and therefore contaminated, it must be exchanged for a new one.
- the exchange in question is quick and easy to assemble by loosening a screw connection between the filter housing and the cover part fixedly arranged on the support arm. In this way, a stationary mounting of the cooling device on a hydraulic device can also be achieved in the mobile area, with the respective filter element being able to be replaced at another suitable location, where emerging fluid contaminations play no role.
- FIG. 2 is a perspective view of a rear of the cooling device
- Fig. 8 in the manner of a hydraulic circuit diagram, the basic design of the overall cooling device.
- the cooling device has a cooling unit 10 through which a fluid to be cooled, in particular hydraulic oil, and a filter unit 12 for the filtration of the fluid concerned. 1 to 4 in particular, the cooling unit 10 and the filter unit 12 are connected to one another in one piece via a support arm 14 with an internal fluid guide 16, the support arm 14 preferably being an integral part of the device housing 18 of the cooling unit 10.
- the filter unit 12 is arranged behind the cooling unit 10 in the direction of flow of the fluid (hydraulic medium).
- the cooling unit 10 is designed as a plate-shaped lamella cooler.
- the plate cooler has fins 20 which are folded out in a zigzag shape and between them delimit fluid guide channels 22 which serve to transport the fluid to be cooled.
- the direction of air flow through the cooling unit 10 runs perpendicular to the image plane of FIGS. 1 and 2 and the actual fluid transport direction transversely thereto, that is to say in the image plane.
- the stacked fluid guide channels 22 open out on both sides in fluid collection spaces 24, 26.
- the relevant collection spaces 24, 26 form fluid-conducting longitudinal spaces which extend along the two long sides of the cooling unit 10.
- the device housing 18 itself is composed of individual sheet metal parts; but there is also the possibility of producing this as an aluminum casting. If the device housing 18 is composed of sheet metal parts, this is held together by means of corresponding weld connections (not shown).
- the filter unit 12 is essentially cylindrical on the outer circumference side, and the fluid inlet 28 takes place in the upper edge region of the filter element 30, which is accommodated in a pot-like filter housing 32 of the filter unit 12.
- the flow direction of the filter element 30 with contaminated fluid takes place from the outside inwards, so that the fluid discharge or discharge 34 takes place via the interior of the filter element 30.
- the actual filter element 30, which can consist of conventional filtration materials and, for example, surrounds a central support tube as a pleated hollow cylindrical filter mat, is in the pot-like filter housing 32 from above and the filtering of contaminants from the fluid (hydraulic medium) via the filter element 30 ensures that the cleaned fluid cannot form deposits in the connected hydraulic devices in such a way that the operation of the entire hydraulic system is endangered.
- cooled fluid medium flows into the spar-like fluid collection chamber 24, and from there, via the internal fluid guide 16 of the support arm 14 to the filter unit 12, as seen from the left to the right as viewed in FIGS. 3 and 4.
- the relevant inflow conditions are shown in FIG. 3.
- Fluid cleaned by the filter element 30 is passed on via the discharge line 34 and again via the internal fluid guide 16 of the support arm 14 into a collecting pipe 36 within the collecting space 24, and in this respect a separate fluid supply of the supply 28 and the discharge line 34 is achieved.
- the pot-like filter housing 32 has an external thread 38 at its upper end, which can be fixed to the cover part 42 via an internal thread section 40.
- the cover part 42 in question which overlaps the upper area of the filter housing 32 from the outside, is in turn an integral part of the support arm 14.
- the cover part 42 is penetrated by a contamination indicator 44, which allows a statement to be made about the contamination state of the filter element 30.
- Corresponding clogging indicators 44 are common in the field of hydraulics, so that no further details will be given here.
- the cooling unit 10 is provided on its one end face with a motor fan unit 46 which improves the air throughput between the free spaces between the fins 20 of the cooling unit 10. As FIG.
- a combined suction and non-return valve 48 is arranged on the underside of the collecting tube 36, which, as a non-return valve, allows the fluid to be directed to the tank in one direction and thus forms a safeguard against excess pressure, and in the In the other direction, the type of a suction valve allows the fluid coming from the tank to flow into the collecting pipe 36.
- a head part 50 lifts off a contact plate 52 which has a fluid guide in the middle and is otherwise held in its closed position shown in FIG. 5 via the compression spring 54.
- a further spring-loaded non-return valve 56 is provided, which, arranged in the fluid feed 28 in the fluid direction in front of the filter element 30, protects the fluid cooling circuit towards the tank T.
- a thermal bypass valve 58 which is internally provided with an expansion element 60, is now also arranged at the lower end of the fluid collection chamber 26.
- Such thermoby-pass valves 58 are customary in the trade, so that nothing is detailed here about their structure. At low fluid temperatures, the thermal bypass valve 58 is used to directly enable the fluid supply bypassing the cooling unit 10 to the filter unit 12, specifically via the bypass channels 62, which run parallel to the fins 20 and are arranged below them.
- the expansion element 60 expands and closes the bypass channels 62 with increasing heating, so that with increasing heating of the fluid, the predominant part via the fluid guide channels 22 of the cooling unit 10 chilled and is then supplied to the filter unit 12 in which the medium cooled in this way flows into the longitudinal spar-like fluid collecting space 24.
- the cooling unit 10 also has corresponding fluid connection points in the fluid collection spaces 24 and 26, connection points for the connection of measuring devices, for example for temperature detection of the hydraulic medium, may also be provided.
- the spar-like collecting space 26 has at least one connection point for the contaminated fluid to be cooled at the top left. Underneath (see Fig. 2) there is a connection point 66 for connecting a temperature detection device, not shown.
- the longitudinal spar 24 has two return lines 68, which are used for the removal of cooled fluid, specifically before passing through the filter unit 12.
- the fluid quantities in question can be used for special, unspecified tasks in a hydraulic device.
- connection points 70 located underneath are used to connect a hydraulic suction pump (not shown in more detail), which in this way also ensures the hydraulic circulation for the cooling unit 10 and the filter unit 12.
- the relevant connection points 70 as a supply for a suction pump, not shown, are arranged in the fluid direction behind the filter element 12 in the collecting space 24.
- the hydraulic circuit diagram shown in FIG. 8 clearly reflects the above-mentioned fluid routing and interconnections, as well as the essential components of the cooling device.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Sampling And Sample Adjustment (AREA)
- Surgical Instruments (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004015505A DE102004015505B4 (en) | 2004-03-28 | 2004-03-28 | cooler |
PCT/EP2005/002280 WO2005093357A1 (en) | 2004-03-28 | 2005-03-04 | Cooling device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1730464A1 true EP1730464A1 (en) | 2006-12-13 |
EP1730464B1 EP1730464B1 (en) | 2012-04-25 |
Family
ID=34961679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05715721A Not-in-force EP1730464B1 (en) | 2004-03-28 | 2005-03-04 | Cooling device |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080017357A1 (en) |
EP (1) | EP1730464B1 (en) |
AT (1) | ATE555358T1 (en) |
DE (1) | DE102004015505B4 (en) |
DK (1) | DK1730464T3 (en) |
ES (1) | ES2382380T3 (en) |
WO (1) | WO2005093357A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008027424A1 (en) * | 2008-06-10 | 2009-12-17 | Hydac S.A. | Fluid Cooler |
DE102008030969A1 (en) * | 2008-06-30 | 2009-12-31 | Agco Gmbh | Flow Control |
AT13845U1 (en) * | 2013-04-17 | 2014-10-15 | Pustelnik Philipp Dipl Ing | Attachment for a hydraulic oil-air cooler |
DE102014218378A1 (en) * | 2014-09-12 | 2016-03-17 | Mahle International Gmbh | Heat exchanger |
AT525658B1 (en) | 2022-07-22 | 2023-06-15 | Thomas Euler Rolle | cooler |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH533246A (en) * | 1971-11-29 | 1973-01-31 | Inkomag Ag | Device for storing, filtering and cooling liquid medium |
JP3081941B2 (en) * | 1990-08-23 | 2000-08-28 | 株式会社ゼクセル | Receiver tank integrated condenser |
ES2138962T3 (en) * | 1991-12-17 | 2000-02-01 | Mann & Hummel Filter | FILTER FOR FUELS AND / OR LUBRICANTS OF A COMBUSTION ENGINE. |
US5351664A (en) * | 1993-04-16 | 1994-10-04 | Kohler Co. | Oil cooling device |
US5513732A (en) * | 1994-08-05 | 1996-05-07 | Ford Motor Company | Regulation of hydraulic pressure in a system having multiple pressure sources |
IT1292249B1 (en) * | 1997-04-08 | 1999-01-29 | Magneti Marelli Climat Srl | STRUCTURE FOR SUPPORTING AND FIXING A RADIATOR TO THE BODY OF A VEHICLE. |
ITTO980017A1 (en) * | 1998-01-12 | 1999-07-12 | Magneti Marelli Climat Srl | HEAT EXCHANGE UNIT FOR A VEHICLE INCLUDING A RADIATOR CARRIING OUT A DETRACTOR FILTER. |
JPH11316065A (en) | 1998-05-01 | 1999-11-16 | Showa Alum Corp | Condenser with receiver tank |
US6105660A (en) * | 1998-11-02 | 2000-08-22 | Textron Inc. | Oil cooler movably supported on a vehicle and method for same |
DE10009864A1 (en) * | 2000-03-01 | 2001-09-13 | Fluidtech Gmbh | Cooling device esp. for hydraulic oil has cooling unit and filter unit forming integral part, and fitted into single housing |
US6694773B1 (en) * | 2003-01-29 | 2004-02-24 | Calsonickansei North America, Inc. | Condenser system with nondetachably coupled receiver |
-
2004
- 2004-03-28 DE DE102004015505A patent/DE102004015505B4/en not_active Expired - Fee Related
-
2005
- 2005-03-04 US US10/594,558 patent/US20080017357A1/en not_active Abandoned
- 2005-03-04 DK DK05715721.6T patent/DK1730464T3/en active
- 2005-03-04 AT AT05715721T patent/ATE555358T1/en active
- 2005-03-04 ES ES05715721T patent/ES2382380T3/en active Active
- 2005-03-04 EP EP05715721A patent/EP1730464B1/en not_active Not-in-force
- 2005-03-04 WO PCT/EP2005/002280 patent/WO2005093357A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2005093357A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2005093357A1 (en) | 2005-10-06 |
EP1730464B1 (en) | 2012-04-25 |
US20080017357A1 (en) | 2008-01-24 |
ATE555358T1 (en) | 2012-05-15 |
ES2382380T3 (en) | 2012-06-07 |
DK1730464T3 (en) | 2012-05-29 |
DE102004015505B4 (en) | 2006-02-16 |
DE102004015505A1 (en) | 2005-10-13 |
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