DE202010011010U1 - Hydraulic preheater for hydraulic oil cooler in a large hydraulic excavator - Google Patents
Hydraulic preheater for hydraulic oil cooler in a large hydraulic excavator Download PDFInfo
- Publication number
- DE202010011010U1 DE202010011010U1 DE202010011010U DE202010011010U DE202010011010U1 DE 202010011010 U1 DE202010011010 U1 DE 202010011010U1 DE 202010011010 U DE202010011010 U DE 202010011010U DE 202010011010 U DE202010011010 U DE 202010011010U DE 202010011010 U1 DE202010011010 U1 DE 202010011010U1
- Authority
- DE
- Germany
- Prior art keywords
- hydraulic oil
- oil cooler
- hydraulic
- outlet box
- relief valve
- 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.)
- Expired - Lifetime
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
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/002—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/005—Controlling temperature of lubricant
- F01M5/007—Thermostatic control
-
- 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
- F15B21/0427—Heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/06—Derivation channels, e.g. bypass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/12—Safety or protection arrangements; Arrangements for preventing malfunction for preventing overpressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Einrichtung zum Vorwärmen von Hydrauliköl, das sich bei tiefen Temperaturen in mindestens einem luftgekühlten Hydraulikölkühler (7) befindet, wobei mindestens ein Hydraulikölkühler (7) außerhalb eines Motorraums, insbesondere eines Großhydraulikbaggers, angeordnet ist, dadurch gekennzeichnet, dass das aus einem Tank (2) kommende, insbesondere heiße Öl, dem Einlasskasten (6) des Hydraulikölkühlers (7) zugeführt und über Verbindungsleitungen (14, 15) sowie einem zwischengeschalteten Druckbegrenzungsventil (13) oder einem Rückschlagventil (18) zum Auslasskasten (8) mindestens eines Hydraulikölkühlers (7) weitergeführt wird, wobei der Auslasskasten (8) und das darin befindliche kalte Öl aufwärmbar und dem Tank (2) zuführbar ist.Device for preheating hydraulic oil, which is located at low temperatures in at least one air-cooled hydraulic oil cooler (7), wherein at least one hydraulic oil cooler (7) is arranged outside an engine compartment, in particular a large hydraulic excavator, characterized in that it consists of a tank (2) coming, in particular hot oil, the inlet box (6) of the hydraulic oil cooler (7) and via connecting lines (14, 15) and an intermediate pressure limiting valve (13) or a check valve (18) to the outlet box (8) at least one hydraulic oil cooler (7) continued is, with the outlet box (8) and the cold oil therein can be reheated and the tank (2) can be fed.
Description
Die Neuerung betrifft eine Einrichtung zum Vorwärmen von Hydrauliköl gemäß gattungsbildendem Teil des ersten Anspruchs.The Innovation relates to a device for preheating hydraulic oil according to the generic part of the first claim.
In einem Großhydraulikbagger sind die oben genannten Hydraulikölkühler normalerweise außerhalb des Motorraumes angeordnet. Aufgrund dieser Anordnung besteht beim Einsatz des Baggers in kalter Umgebungsluft das Problem, dass nach Stillstandszeiten, wie z. B. bei der Erstinbetriebnahme des Gerätes oder nach Reparatur- bzw. Wartungsarbeiten das eingesetzte Hydrauliköl bis zum Stockpunkt dickflüssig wird; was in der Folge bei außerhalb des Motorraumes angeordneten Hydraulikölkühlern zu Schäden führt und damit zu Ausfallzeiten des Großhydraulikbaggers.In a large hydraulic excavator are the above hydraulic oil cooler normally located outside the engine compartment. by virtue of This arrangement consists in the use of the excavator in cold ambient air the problem that after downtime, such. B. at the first commissioning of Device or after repair or maintenance work used hydraulic oil to the pour point thick becomes; which is arranged in the sequence outside the engine compartment Hydraulic oil cooler leads to damage and thus downtime of the large hydraulic excavator.
Ein luftgekühlter Hydraulikölkühler ist vielfach aufgebaut in vom Öl durchflossene Lamellen, von Luft durchströmten Lamellen und zwei Sammelkästen für das ein- und ausfließende Öl.One Air-cooled hydraulic oil cooler is many times built in lamellae through which the oil flows, through which air flows Slats and two collection boxes for the on and off effluent oil.
Wird nun ein Großhydraulikbagger aus dem Stillstand bei niedrigen Temperaturen in Betrieb genommen, werden nach dem Starten der Motoren die Hydraulikpumpen langsam warmgefahren. Gleichzeitig wird das Öl im Hydrauliktank, in den Leitungen innerhalb des Pumpenraumes und in den Hauptkomponenten erwärmt, wobei das Öl im Hydrauliktank schnell auf Betriebstemperatur erhitzt wird. Wenn das im Hydrauliktank befindliche Öl seine Betriebstemperatur erreicht hat, steuert der im Öltank montierte Temperaturfühler den Lüfterantrieb des Hydraulikölkühlers sowie die Kühlölpumpe an. Durch die engen Lamellen im Hydraulikölkühler und den Einbau des Kühlers außerhalb des Motorraums hat das im Ölkühler befindliche Hydrauliköl noch keine oder eine noch nicht ausreichende Temperaturerhöhung erfahren. Durch die nun eingetretene Situation, dass das Öl im Hydrauliktank eine Temperatur erreicht hat, die eine Kühlung des Öls erforderlich macht, das in den Lamellen des Ölkühlers befindliche Öl aber noch kalt ist und nicht schnell genug ausgespült werden kann, kann der im System vorherrschende Staudruck den Berstdruck des Kühlers überschreiten und damit zu Schäden am Hydraulikölkühler führen.Becomes now a large hydraulic excavator from standstill at low Temperatures are put into operation after starting the engines the hydraulic pumps slowly warm up. At the same time the oil becomes in the hydraulic tank, in the pipes inside the pump room and heated in the main components, taking the oil is quickly heated to operating temperature in the hydraulic tank. If that oil in the hydraulic tank is at its operating temperature has reached, controls the mounted in the oil tank temperature sensor the fan drive of the hydraulic oil cooler and the cooling oil pump. Through the narrow slats in the hydraulic oil cooler and the installation of the radiator outside the engine compartment has that in the oil cooler hydraulic oil is still not or not yet experience sufficient temperature increase. Through the now occurred situation that the oil in the hydraulic tank a Temperature has reached a cooling of the oil required in the fins of the oil cooler oil is still cold and not fast enough can be flushed out, the prevailing in the system Back pressure exceeds the bursting pressure of the radiator and thus damage to the hydraulic oil cooler to lead.
Die Ein- und Auslasskästen der weiter oben beschriebenen Hydraulikölkühler weisen erfahrungsgemäß jeweils einen Anschluss auf. Das zu kühlende Öl wird in den Einlasskasten geleitet, wo es von dort vertikal durch die Lamellen des Hydraulikölkühlers zum Auslasskasten strömt. Das in den Auslasskasten einfließende Öl wird über den Auslassanschluss dem Hydrauliktank zugeführt. Die Lamellen des Hydraulikölkühlers werden im Betrieb horizontal durch Luft umströmt.The Inlet and outlet boxes of the hydraulic oil cooler described above According to experience, each has a connection on. The oil to be cooled is in the inlet box directed where it from there vertically through the slats of the hydraulic oil cooler to Outlet box flows. The oil flowing into the outlet box is supplied to the hydraulic tank via the outlet port. The fins of the hydraulic oil cooler are in Operation horizontally surrounded by air.
Die
Der
Der Neuerung liegt die Aufgabe zugrunde, durch Umströmen das in den Lamellen des Hydraulikölkühlers, insbesondere eines Großhydraulikbaggers, befindliche starre Hydrauliköl schnell zu erwärmen, um den vorgenannten Schadensfall zu verhindern.Of the Innovation is the task, by flowing around the in the fins of the hydraulic oil cooler, in particular a large hydraulic excavator, located rigid hydraulic oil to heat up quickly, to the aforementioned case of damage prevent.
Diese Aufgabe wird dadurch gelöst, dass das aus einem Tank kommende, insbesondere heiße Öl, dem Einlasskasten des Hydraulikölkühlers zugeführt und über Verbindungsleitungen sowie einem zwischengeschalteten Druckbegrenzungsventil oder einem Rückschlagventil zum Auslasskasten mindestens eines Hydraulikölkühlers weitergeführt wird, wobei der Auslasskasten und das darin befindliche kalte Öl aufwärmbar und dem Tank zuführbar ist.These Task is solved by coming from a tank, especially hot oil, the inlet box of the hydraulic oil cooler fed and via connecting lines as well an intermediate pressure relief valve or a check valve to the outlet box of at least one hydraulic oil cooler is continued, the outlet box and the therein can be reheated cold oil and fed to the tank is.
Vorteilhafte Weiterbildungen des Anmeldungsgegenstands sind den Unteransprüchen zu entnehmen.advantageous Further developments of the subject of the application are the dependent claims refer to.
Das über den ersten Anschluss in den Einlasskasten mit dem Betriebsdruck beaufschlagte einfließende vorgewärmte Öl wird, wenn das in den Lamellen des Ölkühlers befindliche Öl noch kalt ist, durch den Einlasskasten an den Ölkühlerlamellen vorbei zum zweiten Anschluss des Einlasskastens und weiter in die Verbindungsleitung zum Auslasskasten geführt. In dieser Leitung ist ein Druckbegrenzungsventil vorgesehen. Der Druckanschluss dieses Ventils ist über die Leitung mit dem Einlasskasten verbunden, der Tankanschluss ist über eine weitere Leitung mit dem Auslasskasten des Hydraulikölkühlers verbunden.The inflowing preheated oil supplied to the operating pressure via the first port into the inlet box is, when the oil in the fins of the oil cooler is still cold, passed through the inlet box past the oil cooler fins to the second port of the inlet box and further into the connection line to the outlet box , In this line is a Druckbegren provided. The pressure connection of this valve is connected via the line with the inlet box, the tank connection is connected via a further line to the outlet box of the hydraulic oil cooler.
Fließt nun das unter Druck stehende vorgewärmte Öl über den ersten Anschluss in den Einlasskasten des Hydraulikölkühlers, baut sich bei kaltem Öl, das sich in den Lamellen des Hydraulikölkühlers befindet, ein Druck auf, da das kalte Öl nicht sofort aus den Lamellen herausgedrückt werden kann. Über den zweiten Anschluss des Einlasskastens wird nun das im Einlasskasten befindliche vorgewärmte Öl über den zweiten Anschluss dem Druckbegrenzungsventil zugeführt. Bei Überschreiten eines voreingestellten Drucks im Druckbegrenzungsventil, der unterhalb des maximalen Betriebsdrucks des Hydraulikölkühlers liegt, öffnet das Ventil und gibt den Durchfluss des vom Einlasskasten strömenden Öls zum Auslasskasten frei. Beim Durchströmen des Druckbegrenzungsventils wird das Öl weiter aufgewärmt und neuerungsgemäß dem ersten Anschluss des Auslasskastens zugeführt. Über den zweiten Anschluss wird das Öl aus dem Auslasskasten dem Tank zugeführt.flows now the pressurized preheated oil over the first connection in the inlet box of the hydraulic oil cooler, builds up with cold oil that is in the fins of the hydraulic oil cooler a pressure on, since the cold oil is not immediately from the slats can be pushed out. About the second connection of the inlet box is now over the preheated oil in the inlet box supplied to the second port of the pressure relief valve. When a preset pressure in the pressure relief valve is exceeded, below the maximum operating pressure of the hydraulic oil cooler is open, opens the valve and indicates the flow of the Inlet box of pouring oil to the outlet box free. When flowing through the pressure relief valve is the oil further warmed up and renewed the supplied first connection of the outlet box. about the second port is the oil from the outlet box fed to the tank.
Das warme Öl aus dem Hydrauliktank steht somit unter Druck am Anschluss des Einlasskastens des Hydraulikölkühlers an. Gleichzeitig wird durch die zuvor beschriebene Einrichtung Hydrauliköl weiter aufgeheizt und steht im Auslasskasten des Hydraulikkühlers an. Der Kühler wird dadurch soweit aufgewärmt, dass mit dem anstehenden Druck die noch verstopften Lamellen frei gespült werden können. In der Folge sinkt der Staudruck im System und das Druckbegrenzungsventil schließt. Der Hydraulikölkühler arbeitet nun im Normalzustand.The warm oil from the hydraulic tank is thus under pressure at the connection of the inlet box of the hydraulic oil cooler at. At the same time by the above-described device hydraulic oil further heated and is in the outlet box of the hydraulic cooler at. The radiator is thereby warmed up so far, that with the upcoming pressure the still clogged lamellae free can be rinsed. As a result, the sinks Back pressure in the system and the pressure relief valve closes. The hydraulic oil cooler now works in the normal state.
An Stelle des Druckbegrenzungsventils kann auch ein insbesondere federvorgespanntes Rückschlagventil eingesetzt werden.At Position of the pressure relief valve can also be a particular spring-biased Non-return valve can be used.
Der Neuerungsgegenstand ist anhand eines Ausführungsbeispiels in der Zeichnung dargestellt und wird wie folgt beschrieben. Es zeigen:Of the Innovation object is based on an embodiment shown in the drawing and is described as follows. It demonstrate:
- 11
- Temperaturfühlertemperature sensor
- 22
- Tanktank
- 33
- Regelelektronikcontrol electronics
- 44
- Förderpumpefeed pump
- 55
- Regelventilcontrol valve
- 66
- Einlasskasten des Hydraulikölkühlersintake box of the hydraulic oil cooler
- 77
- HydraulikölkühlerHydraulic Oil Cooler
- 7'7 '
- Lamellenslats
- 88th
- Auslasskasten des Hydraulikölkühlersexhaust box of the hydraulic oil cooler
- 99
- Leitungmanagement
- 1010
- Anschluss des Einlasskastensconnection of the intake box
- 1111
- Anschluss des Einlasskastensconnection of the intake box
- 1313
- DruckbegrenzungsventilPressure relief valve
- 1414
- Verbindungsleitungconnecting line
- 1515
- Verbindungsleitungconnecting line
- 1616
- Anschluss des Auslasskastensconnection of the outlet box
- 1717
- Anschluss des Auslasskastensconnection of the outlet box
- 1818
- federvorgespanntes Rückschlagventilspring-loaded check valve
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19750814 A1 [0006] DE 19750814 A1 [0006]
- - DE 69921618 T2 [0007] - DE 69921618 T2 [0007]
Claims (5)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202010011010U DE202010011010U1 (en) | 2010-08-04 | 2010-08-04 | Hydraulic preheater for hydraulic oil cooler in a large hydraulic excavator |
AU2011287925A AU2011287925A1 (en) | 2010-08-04 | 2011-07-29 | Hydraulic preheating apparatus for hydraulic oil coolers in a large hydraulic excavator |
CN201180047919.0A CN103140654B (en) | 2010-08-04 | 2011-07-29 | For the hydraulic pressure pwc thermal of the hydraulic oil cooler in large hydraulic excavator |
EP11752463.7A EP2601390A1 (en) | 2010-08-04 | 2011-07-29 | Hydraulic preheating apparatus for hydraulic oil coolers in a large hydraulic excavator |
PCT/EP2011/003823 WO2012016668A1 (en) | 2010-08-04 | 2011-07-29 | Hydraulic preheating apparatus for hydraulic oil coolers in a large hydraulic excavator |
US13/813,364 US20130213633A1 (en) | 2010-08-04 | 2011-07-29 | Hydraulic preheating apparatus for hydraulic oil coolers in a large hydraulic excavator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202010011010U DE202010011010U1 (en) | 2010-08-04 | 2010-08-04 | Hydraulic preheater for hydraulic oil cooler in a large hydraulic excavator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202010011010U1 true DE202010011010U1 (en) | 2010-11-04 |
Family
ID=43049765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202010011010U Expired - Lifetime DE202010011010U1 (en) | 2010-08-04 | 2010-08-04 | Hydraulic preheater for hydraulic oil cooler in a large hydraulic excavator |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130213633A1 (en) |
EP (1) | EP2601390A1 (en) |
CN (1) | CN103140654B (en) |
AU (1) | AU2011287925A1 (en) |
DE (1) | DE202010011010U1 (en) |
WO (1) | WO2012016668A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103398626B (en) * | 2013-07-26 | 2016-01-20 | 江苏高博智融科技有限公司 | A kind of heat exchanger with ring sound |
US10436529B1 (en) * | 2018-08-23 | 2019-10-08 | William T. Holley, Jr. | Hydraulic fluid coolers |
GB2585908B (en) * | 2019-07-23 | 2023-08-23 | Bamford Excavators Ltd | Working Machine |
US10859203B1 (en) * | 2020-03-12 | 2020-12-08 | American Jereh International Corporation | High-low pressure lubrication system for high-horsepower plunger pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19750814A1 (en) | 1997-11-17 | 1999-06-02 | Laengerer & Reich Gmbh & Co | Heat exchanger, in particular oil cooler with an enclosed control valve, and method for controlling a heat exchanger |
DE69921618T2 (en) | 1998-02-27 | 2005-11-03 | Volvo Wheel Loaders Ab | COOLING AND HEATING SYSTEMS FOR MACHINERY |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1690501A (en) * | 1926-10-08 | 1928-11-06 | Vickers Ltd | Heat exchanger |
US4308652A (en) * | 1978-02-10 | 1982-01-05 | Karmazin Products Corporation | Heat exchanger construction |
US4209062A (en) * | 1978-02-10 | 1980-06-24 | Karmazin Products Corporation | Heat exchanger construction |
DE2916691C2 (en) * | 1979-04-25 | 1983-11-24 | Bayerische Motoren Werke AG, 8000 München | Cooling device for internal combustion engines |
US4991643A (en) * | 1989-08-23 | 1991-02-12 | Hayden, Inc. | Heat exchanger with internal bypass valve |
DE4122904A1 (en) * | 1991-07-11 | 1993-01-14 | Laengerer & Reich Kuehler | OIL COOLER |
US5242011A (en) * | 1992-07-14 | 1993-09-07 | Thermal Transfer Products, Lt. | Heat exchanger with pressure responsive bypass |
JP3322016B2 (en) * | 1994-08-29 | 2002-09-09 | 株式会社デンソー | Hot water heating system for automobiles |
US6651441B2 (en) * | 2002-01-22 | 2003-11-25 | Hamilton Sundstrand | Fluid flow system for a gas turbine engine |
DE10230042A1 (en) * | 2002-07-04 | 2004-01-22 | Hydac S.A. | Device for heat exchange between flowable media |
AT414042B (en) * | 2004-06-09 | 2006-08-15 | Pustelnik Philipp Dipl Ing | PLATE COOLER |
US7832467B2 (en) * | 2004-08-27 | 2010-11-16 | Edc Automotive, Llc | Oil cooler |
US7540431B2 (en) * | 2004-11-24 | 2009-06-02 | Dana Canada Corporation | By-pass valve for heat exchanger |
CA2596324A1 (en) * | 2005-02-02 | 2006-08-10 | Carrier Corporation | Parallel flow heat exchanger for heat pump applications |
DE102005048294A1 (en) * | 2005-10-08 | 2007-04-12 | Modine Manufacturing Co., Racine | Soldered heat exchanger and manufacturing process |
DE102008020609A1 (en) * | 2008-04-24 | 2009-10-29 | Mann + Hummel Gmbh | Heat exchangers, in particular oil coolers |
JP4931955B2 (en) * | 2009-04-06 | 2012-05-16 | 日立建機株式会社 | Hydraulic circuit device of excavator |
-
2010
- 2010-08-04 DE DE202010011010U patent/DE202010011010U1/en not_active Expired - Lifetime
-
2011
- 2011-07-29 CN CN201180047919.0A patent/CN103140654B/en not_active Expired - Fee Related
- 2011-07-29 WO PCT/EP2011/003823 patent/WO2012016668A1/en active Application Filing
- 2011-07-29 EP EP11752463.7A patent/EP2601390A1/en not_active Withdrawn
- 2011-07-29 US US13/813,364 patent/US20130213633A1/en not_active Abandoned
- 2011-07-29 AU AU2011287925A patent/AU2011287925A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19750814A1 (en) | 1997-11-17 | 1999-06-02 | Laengerer & Reich Gmbh & Co | Heat exchanger, in particular oil cooler with an enclosed control valve, and method for controlling a heat exchanger |
DE69921618T2 (en) | 1998-02-27 | 2005-11-03 | Volvo Wheel Loaders Ab | COOLING AND HEATING SYSTEMS FOR MACHINERY |
Also Published As
Publication number | Publication date |
---|---|
CN103140654A (en) | 2013-06-05 |
CN103140654B (en) | 2016-03-02 |
US20130213633A1 (en) | 2013-08-22 |
EP2601390A1 (en) | 2013-06-12 |
WO2012016668A1 (en) | 2012-02-09 |
AU2011287925A1 (en) | 2013-02-28 |
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