EP0916816A1 - Wärmetauscher, insbesondere Ölkühler mit einem eingeschlossenen Regelventil, sowie Verfahren zur Regelung des Wärmetausches - Google Patents
Wärmetauscher, insbesondere Ölkühler mit einem eingeschlossenen Regelventil, sowie Verfahren zur Regelung des Wärmetausches Download PDFInfo
- Publication number
- EP0916816A1 EP0916816A1 EP98120967A EP98120967A EP0916816A1 EP 0916816 A1 EP0916816 A1 EP 0916816A1 EP 98120967 A EP98120967 A EP 98120967A EP 98120967 A EP98120967 A EP 98120967A EP 0916816 A1 EP0916816 A1 EP 0916816A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- control valve
- coolant
- temperature
- channels
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 239000002826 coolant Substances 0.000 claims abstract description 52
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 206010010774 Constipation Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- 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
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0089—Oil coolers
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/916—Oil cooler
Definitions
- the invention relates to a heat exchanger, in particular an oil cooler of the type with at least two separate flow channels for different media, the channels for the inlet and Drain are broken and with appropriate connections on these channels, as well as with a sealed to the heat exchanger lid, which forms a flow channel and the includes at least one control valve with which the temperature-dependent flow can be regulated is.
- the invention further relates to a control method according to the preamble of the claim 13.
- the heat exchanger thus known from US Pat. No. 4,669,532 has an on the Oil temperature reacting control valve as a bimetallic element, which is above a predetermined Oil temperature responds and the flow opening for the oil through the oil cooler releases to cool the oil. Below the predetermined oil temperature, the oil flows without to be cooled by a bypass.
- This is a long-known one Method that helps the oil reach the optimal temperature very quickly and that consequently also the start phase of a with a liquid-cooled internal combustion engine driven vehicle is quickly overcome. Furthermore, the constipation of the Oil cooler prevented by cold, viscous oil that tends to clump.
- Oil cooler has a soldered adapter plate and a mounting plate in which for the previously described purpose a valve responsive to the oil pressure was arranged.
- thermostats regulate the flow of coolant through the oil cooler and thus the Adjust the performance of the oil cooler as required.
- the intended control thermostats are usually in the lines to or from the oil cooler and are designed to that they block the coolant flow rate below a predetermined temperature or reduce to a low constant bypass flow and above the predetermined Temperature value can regulate the coolant throughput from minimum to maximum.
- One for that provided thermostatic valve unit is the subject of the unpublished patent application DE 196 37 818.
- control thermostats can be used to further optimize the control according to the latter Patent application and also according to EP 0 787 929, so designed that the through the heat exchanger Conductive coolant flow from recooled and non-recooled coolant miscible is.
- control thermostats in the inflow or outflow lines mostly in separate housings with connections to the lines - correspondingly high effort for the control technology result and also for installation, for example in a motor vehicle.
- Some control thermostats - including the one from the EP mentioned - are equipped with electrical heating equipped, which is suitable for previously recognizable operating states, for example to meet expected high performance requirements for the oil cooler in such a way that The coolant throughput is increased even before such operating states are reached by the electrical heating on the control thermostat is above the actual oil or coolant temperature lying temperature is set, which leads to a larger opening of the flow cross section leads for the coolant. This reduces harmful temperature peaks, their It also arises from the relative inertia in the control behavior of thermostats is favored.
- the electric heating contributes to the fact that the regulation is constantly within optimal Temperature limits occur.
- the object of the invention is to provide a generic heat exchanger, in particular To provide oil coolers and a method of controlling the cooling capacity with which the Flow through the heat exchanger can be regulated as required.
- a channel opposite a media connection is provided with a receptacle in which the control valve is arranged and that comprising the control valve and at least one further channel Lid is equipped with at least one media connection.
- the control method according to the invention provides that the directly in the heat exchanger Temperature of a medium is recorded and that the flowing through the heat exchanger The quantity of coolant is changed directly by a control valve belonging to the heat exchanger becomes.
- the control valve performs opening movements within its control range when the temperature rises and closing movements when the temperature drops.
- This method has improved the accuracy of the control because of the temperature right there - directly in the heat exchanger - and immediately the amount of coolant is set where no or only minor environmental influences distort the temperature can. It is particularly advantageous if, in addition to that controlled by the oil temperature Control valve uses an additional bypass valve controlled by the temperature of the coolant becomes. If the heat exchanger is used as an oil cooler in a vehicle, one can Cold start of the vehicle with the bypass valve influences the shortening of the preheating phase by passing preheated coolant through the bypass. Then can the bypass valve be closed.
- the control valve and the valve-receiving cover are part of the heat exchanger according to the invention become, so that the heat exchanger itself the needs-appropriate flow regulates.
- the new heat exchanger only has to be connected to the inflow and outflow lines become.
- the built-in control valve has a control range such as that for the respective application is required so that no additional connections or settings regarding the cooling capacity regulation must be made.
- the invention reduces Heat exchanger also the cost of installation, e.g. in a vehicle.
- the flow of coolant is preferably regulated.
- the control is also only preferably based on the temperature of the medium to be cooled.
- the regulation of the oil temperature to which, as already stated, the invention does not should be limited, has the advantage that the coolant flow only when there is a direct cooling request is passed through the heat exchanger.
- the media connection on the cover for the Coolant is provided and the control valve is based on the temperature of the medium to be cooled, or regulated via the oil temperature, such that the temperature-sensing element of the control valve is in the oil channel extends and the flow cross section of the flow channel in the cover for
- the coolant-changing organ of the control valve protruded into this cover protruding valve has the advantage that the temperature uptake in the channel control more precisely makes as a temperature recording, which is recorded at a more distant place where the temperature could have changed again.
- the lid is designed like a cap open at the bottom and is, for example, from above placed on the cover plate of a housing-free plate heat exchanger and seals at least around an inlet or outlet of the coolant and around the control valve to the outside from.
- the invention is not only in case-less plate heat exchangers (claim 6) but equally beneficial to use in heat exchangers that are surrounded by a housing. (Claim 7)
- the cover has at least two neck-like openings that are open at the bottom Receptacles with suitable seals on the inside and connected by a flow channel are.
- a receptacle is provided for the control valve and the other for the Entry or exit of the medium. Both neck-like shots are themselves too Flow channel.
- the cover is provided with a media connection.
- Another embodiment of the cover has two media connections, an inlet and one Outlet and an intermediate partition in the lid to the inlet flow channel from To isolate the outlet flow channel.
- a total of at least three nozzle-like Recordings arranged on the lid side open at the bottom.
- the lid is preferably made of metal or plastic.
- the oil channel is used to attach the control valve, for example in the oil channel of the heat exchanger opposite the media connection, for example a connecting piece, with a receptacle equipped, which is also designed like a nozzle.
- a soldered heat exchanger can this connector is also soldered.
- the control valve is in this socket sealed so that no oil from the oil duct in the coolant flows through Cover can reach.
- the control valve has two circumferentially extending Seals. The seals are spaced one above the other - one of them for Coolant side and the other to the media side to be cooled (oil side). Within this A clearance hole is made in the receptacle, which connects to is outside the heat exchanger.
- This type of sealing which is known per se, is used for Protection against leaks and against mixing of the two media. If one of the Should both of the seals mentioned leak, one of the media occurs, for example either oil or water outside so that the leak can be detected before the mixing happens. If an electrically heated control valve, a control thermostat, is used should be, the above-mentioned through hole can be very simple and inexpensive Guidance of the heating cable can be used.
- control valve has a section that has an external thread, with which the control valve is screwed into the receptacle with an internal thread.
- the control valve has a cage-like part, (housing cage), for example in the form of a Truncated cone, which can be closed by the valve disc on the larger, open side.
- a cage-like part (housing cage), for example in the form of a Truncated cone, which can be closed by the valve disc on the larger, open side.
- the Valve plate is connected to the temperature-absorbing part, for example to the piston rod of a wax thermostat and is therefore in accordance with the temperature steplessly movable between the open and the closed position.
- a compression spring Inside the cage-like Part is a compression spring, the top of the cage-like part and the bottom of the base Piston rod is supported. The opening movement takes place against the force of the compression spring and the Closing movement is brought about or supported by the compression spring.
- a second valve can be used to control the bypass flow be integrated into the lid.
- This valve can by means of bimetal or memory spring or by means of a Thermostats are controlled and is set so that from a predetermined temperature of a medium the bypass channel is completely closed.
- the control valve is over the Temperature of the medium to be cooled regulated and the bypass valve on the temperature of the Coolant.
- the so-called heat exchanger 1 without housing consists of the prior art known manner from several stacked heat exchanger plates.
- the plate pack is bounded above by a cover plate 18 and below by a base plate 18.
- Channels 2 for the Oil outlet and 3 for the oil inlet and channels 9 and 13, not shown, for the cooling water break through the stack of plates.
- the oil channels 2 and 3 are with the horizontal flow channels 11 and the cooling water channels 9 and 13 with the flow channels 10 in connection.
- the Flow channels 10 and 11 arranged one above the other alternate.
- Located at the oil outlet a connection 7, which is designed as an outlet 19.
- the corresponding one is at the oil inlet Inlet port has been designated 20.
- a receptacle 8 is provided in the cover plate 18, which is designed as a receptacle 14.
- the heat exchanger 1 described so far is in this embodiment as a completely soldered heat exchanger.
- the control valve 6, a thermostatically controlled valve, is located in the receiving connector 14. the details of which are described in detail below.
- the thermostat 31 is made of two seals Bypass 15 and 16.
- the seal 15 seals upwards, towards the cooling water and the seal 16 down to the oil side.
- the receptacle 14 has in its wall, approximately in the middle between the two seals 15 and 16, a through hole 17.
- the through hole 17 is connected to the outside of the heat exchanger 1, specifically here in FIG. 1 small distance between the vertical boundary wall of the cover 4 and the cover plate 18th of the heat exchanger 1 observed.
- the control valve 6 is of course not in attached in more detail shown in the receptacle 14 that the pressure on the oil side can withstand.
- the cover 4 in FIG. 1 has two neck-like receiving openings towards the cover plate 18 namely the left socket-like receptacle 23 which connects the control valve 6 with the receptacle 14 comprises and the right neck-like receptacle 22, which the cooling water channel 9 with the connecting piece 21 includes. Sealing rings 24 and 25 arranged between them ensure appropriate sealing outward. Both nozzle-like receptacles 22 and 23 serve as flow channels and are connected to the flow channel 5 within the cover 4. It also points the cover 4 on the left side has a media connection 12, which is designed here as a connecting piece is. Immediately adjacent to this connector is the one above partially described control valve 6. In the thermostat 31 there is a piston rod 26, due to the expansion of the material inside the thermostat caused by heating 31 is pushed out.
- the piston rod 26 is connected to the change in Flow cross section directly bringing about, namely via a in the center of the rotationally symmetrical Valve plates 27 arranged rod 32, which acts as an extension of the piston rod 26 can be viewed.
- Rod 32, compression spring 29 and the abutment mentioned are of a truncated cone Housing cage 28 included.
- Such a design is also a housing cage 28 understand, which has only two struts, by means of which the upper and lower opening connected are.
- the housing cage 28 is at its lower, smaller opening with the thermostat 31 connected, while the upper, larger opening is covered by the valve plate 27. Also owns the larger opening an inward edge or the like, suitable for the to form the upper abutment of the compression spring 29.
- the mode of operation of the oil cooler with the built-in control valve 6 is as follows: With cold oil the control valve 6 the position shown in Fig. 1, i.e. the valve plate 27 holds the upper opening of the housing cage 28 closed. The oil is not cooled in this position and can therefore warm up to operating temperature very quickly.
- the heating can still be accelerated according to the exemplary embodiments which follow later. if preheated coolant is bypassed through the oil cooler.
- the thermostat 31 responds and extends the piston 26, which results in that the valve plate 27 is moved upwards against the force of the compression spring 29 and the upper one Opening of the housing cage 28 releases more and more, causing the amount of cooling water flowing through is increased.
- FIG.2 An exemplary embodiment with a bypass 33 was shown in Fig.2. For clarity to serve, only the reference numerals of the components were given here, the difference to figure 1. Openings 37 are provided in the housing cage 28.
- the one with 33 designated bypass is as a through hole at the upper end of the nozzle-like receptacle 23 arranged. In the illustrated state, 6 can be preheated when the control valve is closed Cooling water flow through the openings 37 through the bypass 33 into the oil cooler.
- At 34 is generally a bimetallic element has been designated, the closing part above the bypass 33 is arranged.
- the bimetal element 34 is here in a separate opening 35 in the cover 4 stored and sealed with a suitable seal 36 to the outside. Should now for In a special application the constant bypass flow may not be desirable or not in the overall concept a vehicle cooling fit, the bimetallic element 34 may be set so that the bypass 33 is closed when the control valve 6 approaches the maximum degree of opening.
- control valve 6 controlled by oil temperature and by means of water temperature controlled bimetallic element 34 can be adapted to the needs.
- the bimetallic element 34 could be set so that the bypass is already at relatively low temperatures is closed.
- a second thermostat 39 is used, which here in the sealed down space 38 between the two socket-like receptacles 22 and 23rd was ordered.
- the space 38 has an inflow opening 40 and an outflow opening 41 the inflow opening 40 can flow in the coolant and activate the thermostat 39.
- Thermostat 39 blocks the outflow opening 41 in accordance with the set coolant temperature from.
- FIG 3 shows a variant in which the control valve 6 is located in the coolant channel 9, a variant controlled according to the temperature of the coolant. It is an advantage here if a continuously open bypass 33 is provided, in addition to the one already described Purpose serves that the thermostat 31 constantly flows around a stream of cooling water becomes. The cooling water flows through the media connection 12, passes through the bypass 33 and via the flow channel 5 to the connecting piece 21, further into the channel 13 and over the Channel 9 to the water outlet. On the oil side, only the connecting piece 7 and part of the Channel 2 (broken out) shown. It should also be noted that regarding the sealing of the control valve 6 in the receptacle 8 a cheaper variant could be used, because cooling water flows on both sides of the seal.
- Fig. 5 shows a heat exchanger 1 of known type with a housing 42 on which the invention is realized.
- the heat exchanger 1 has an oil inlet (media connection 20) and an oil outlet (Media connection 7) on one side.
- the oil inlet is connected to channel 3 and the oil outlet on channel 2.
- Both channels 2; 3 break through the horizontal flow channels 11 for the oil and are connected to them.
- the flow channels 10, which are arranged in between (not ) are intended for the coolant communicating with channels 9 and 13 which are formed by the housing 42.
- This housing 42 comprises the entire heat exchanger 1 and has an inlet connection and an outlet connection for the coolant, both of which have the reference symbol Have 21.
- the control valve 6 is located in channel 2 and is described in FIG Kind attached.
- the cover 4 has a coolant connection 12 and closes the flow channel 5 and has the nozzle-like receptacle 22, which receives the inlet nozzle 21 for the coolant and the nozzle-like receptacle 23, which receives the control valve 6.
- FIG. 6 and 7 show the principle of different variants with regard to the arrangement of the inputs and Outlets and their connection through the cover 4 in plan view.
- the lid is 4th arranged approximately diagonally above the heat exchanger 1 and closes the oil channel 2 and Coolant channel 13 a.
- the control valve 6 was arranged in the oil channel 2. As before specified, the control valve 6 could also be located in the oil channel 3.
- the arrangement in the oil channel 2, which is the outlet channel, has the advantage that the temperature there is in many cases the represents the most important parameters.
- a memory spring 34 and a bypass bore 33 are indicated.
- a memory spring has the advantage over the bimetallic element that it can be used within narrow temperature limits to and 6 differs from FIG. 7 only in that the oil channel 2 and the coolant channel 13 are not diagonally opposite but are arranged in adjacent corner areas. As a result, coolant and oil flow in cocurrent in FIG 6 in countercurrent.
- connection variants are possible and depend on the local installation constraints from.
- the cover 4 has another media connection in addition to the media connection 12 for the inlet 12 for the outlet of the coolant.
- the cover 4 would be like this trained that it also includes the coolant channel 13 and would have a bulkhead, to separate both sides.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
Description
- Fig. 1
- Plattenwärmetauscher mit Regelventil im Ölkanal
- Fig. 2
- Plattenwärmetauscher mit Regelventil und zusätzlichem Bypaßventil
- Fig. 3
- Plattenwärmetauscher mit Regelventil im Kühlmittelkanal und mit Bypaßkanal
- Fig. 4
- Variante zu Fig.2 mit zwei Thermostaten
- Fig.5
- Wärmetauscher mit Gehäuse und Regelventil
- Fig. 6
- Draufsicht auf Wärmetauscher, bei dem die Medien im Gegenstrom fließen
- Fig. 7
- Variante zu Fig. 6 mit Medienfluß im Gleichstrom
- 1
- Wärmetauscher
- 2
- Ölkanal (Austritt)
- 3
- Ölkanal (Eintritt)
- 4
- Deckel
- 5
- Strömungskanal
- 6
- Regelventil
- 7
- Medienanschluß (Öl)
- 8
- Aufnahme
- 9
- Kühlmittelkanal (Eintritt)
- 10
- horizontaler Strömungskanal (Kühlmittel)
- 11
- horizontaler Strömungskanal (Öl)
- 12
- Medienanschluß am Deckel (4)
- 13
- Kühlmittelkanal (Austritt)
- 14
- Aufnahmestutzen
- 15
- Dichtung, oben
- 16
- Dichtung, unten
- 17
- Durchgangsbohrung
- 18
- Deck-und Grundplatte
- 19
- Anschlußstutzen, Ölauslaß
- 20
- Anschlußstutzen, Öleinlaß
- 21
- Anschlußstutzen, Kühlmitteleinlaß
- 22
- eine stutzenartige Aufnahme im Deckel (4)
- 23
- zweite stutzenartige Aufname im Deckel (4)
- 24
- eine Dichtung
- 25
- andere Dichtung
- 26
- Kolbenstange
- 27
- Ventilteller
- 28
- Gehäusekäfig
- 29
- Druckfeder
- 30
- weitere Dichtung
- 31
- Thermostat, temperaturaufnehmender Teil
- 32
- Stange
- 33
- Bypaß
- 34
- Bimetall-Element oder Memory-Feder
- 35
- Öffnung
- 36
- Dichtung
- 37
- Durchbrüche im Gehäusekäfig
- 38
- Raum
- 39
- Thermostat
- 40
- Einströmöffnung
- 41
- Ausströmöffnung
- 42
- Gehäuse
Claims (16)
- Wärmetauscher, insbesondere Ölkühler (1) des Typs mit mindestens zwei voneinander getrennten Strömungskanälen (10;11) für verschiedene Medien, die von Kanälen (2; 3) für den Zu- und Abfluß eines Mediums durchbrochen sind und mit entsprechenden Anschlüssen an diesen Kanälen und mit Kanälen (9;13) für das andere Medium sowie mit einem zum Wärmetauscher hin abgedichteten Deckel (4), der einen Strömungskanal (5) ausbildet und der mindestens ein Regelventil (6) einschließt, mit dem die temperaturabhängige Durchströmung regelbar ist,
dadurch gekennzeichnet,
daß mindestens einer der Öl-oder Kühlmittelkanäle (2;3; 9;13) gegenüber einem Medienanschluß (7;20; 21) mit einer Aufnahme (8) versehen ist, in der das Regelventil (6) angeordnet ist und daß der das Regelventil (6) und mindestens einen weiteren der Öl-oder Kühlmittelkanäle (2;3;9;13) umfassende Deckel (4) mindestens einen Medienanschluß (12) aufweist. - Wärmetauscher, insbesondere Ölkühler, nach Anspruch 1, dadurch gekennzeichnet, daß das Regelventil (6) mit dem temperaturfühlenden Teil (31) in den Ölkanal (2 oder 3) oder in den Kühlmittelkanal (9) ragt, daß der die Größe des Strömungsquerschnittes des Strömunskanales (5) für das Kühlmittel regelnde bzw. sich bewegende Teil innerhalb des Deckels (4) angeordnet ist und daß der Deckel (4) mindestens einen Anschluß (12) für das Kühlmittel aufweist und mindestens einen weiteren Kühlmittelkanal (13) umfaßt.
- Wärmetauscher, insbesondere Ölkühler nach einem der vorstehenden Ansprüche, dadurch geklennzeichnet, daß der Deckel (4) zum Wärmetauscher (1) hin mit stutzenartigen Aufnahmen (22;23) ausgebildet ist.
- Wärmetauscher, insbesondere Ölkühler, nach einem der vorstehenden Anspruche, dadurch gekennzeichnet, daß der Deckel (4) einen Medienanschluß (12) und einen weiteren Medienanschluß sowie eine dazwischen angeordnete Schottwand aufweist und zum Wärmetauscher (1) hin neben den stutzenartigen Aufnahme (22;23) für das Regelventil (6) und den Kanal (9) noch eine weitere stutzenartige Aufnahme für den Kanal (13) umfaßt.
- Wärmetauscher, insbesondere Ölkühler, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Aufnahme (8) als Aufnahmestutzen (14) am Wärmetauscher (1) angelötet ist.
- Wärmetauscher, insbesondere Ölkühler, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Wärmetauscher (1) als gehäuseloser Plattenwärmetauscher mit ineinandergestapelten und getrennte horizontale Strömungskanäle (10;11) bildende Wämetauscherplatten aufgebaut ist, der unten und oben von einer Grund-bzw. Deckplatte (18) abgeschlossen ist und mit den Plattenstapel durchsetzenden, mit den Strömungskanälen (10 oder 11) in Verbindung stehenden Kanälen (2;3;9;13) die Medienanschlüsse(19;20;21) aufweisen.
- Wärmetauscher, insbesondere Ölkühler, nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Wärmetauscher (1) von einem Gehäuse (42) umgeben ist, das die Kanäle (9;13) ausbildet, an denen der Zulauf und der Ablauf für das eine Medium angeordnet ist, welches durch die Strömungskanäle (11) strömt, die zwischen den Strömungskanälen (10) für das andere Medium angeordnet sind, die von den Kanälen (2;3) durchbrochen werden und in Strömungsverbindung stehen.
- Wärmetauscher, insbesondere Ölkühler, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die das Regelventil (6) aufnehmende Aufnahme (8) innerhalb einer der Öl- oder Kühlmittelkanäle (2;3; 9;13) ausgebildet ist.
- Wärmetauscher, insbesondere Ölkühler, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Regelventil (6) die Leistung des Wärmetauschers (1) regelt.
- Wärmetauscher, insbesondere Ölkühler, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Regelventil (6) in dem Aufnahmestutzen (14) mit zwei übereinander angeordneten Dichtungen (15;16) versehen ist und daß im Aufnahmestutzen (14) eine zwischen den Dichtungen (15;16) angeordnete Duchgangsbohrung (17) vorgesehen ist, die den Raum zwischen den Dichtungen mit der Außenseite des Wärmetauschers (1) verbindet.
- Wärmetauscher, insbesondere Ölkühler, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Regelventil (6) einen mit einen Außengewinde versehenen Abschnitt aufweist und in die mit einem Innengewinde versehene Aufnahme (8) eingeschraubt ist.
- Wärmetauscher, insbesondere Ölkühler, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Regelventil (6) aus einem Thermostaten (31) besteht, der mit einem kegelstumpfförmigen Gehäusekäfig (28) verbunden ist, in den die Kolbenstange (26) hineinragt, die über eine Stange (32) mit dem Ventilteller (27) gekoppelt ist und daß eine Druckfeder (29) innerhalb des Gehäusekäfiges (28) angeordnet ist, die oben im Gehäusekäfig (28) und unten, am Ende der Stange (32), abgestützt ist.
- Wärmetauscher, insbesonder Ölkühler, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß innerhalb des Deckels (4) ein Bypaß (33) mit einem Bypaßventil (34) angeordnet ist, welches von der Temperatur des Kühlmittels gesteuert ist und daß das Regelventil (6) von der Öltemperatur gesteuert ist.
- Verfahren zur Regelung der Kühlleistung eines Wärmetauschers, insbesondere eines Ölkühlers, bei dem die den Wärmetauscher durchströmende Kühlmittelmenge in Abhängigkeit von der Temperatur eines Mediums verändert wird,
dadurch gekennzeichnet, daß
eine Leistungsregulierung des Wärmetauschers (1) derart erfolgt, daß unmittelbar im Wärmetauscher (1) die Temperatur eines Mediums aufgenommen wird und daß ein zum Wärmetauscher (1) gehörendes Regelventil (6) bei steigender Temperatur Öffnungsbewegungen und bei sinkender Temperatur Schließbewegungen innerhalb des Regelbereiches des Regelventiles (1) ausführt. - Verfahren zur Regelung der Kühlleistung, nach Anspruch 14, dadurch gekennzeichnet, daß das Regelventil (6) über die Temperatur des Öles und ein weiteres Bypaßventil (34) über die Temperatur des Kühlmittels gesteuert wird.
- Verfahren zur Regelung der Kühlleistung, nach einem der Ansprüche 14 und 15, dadurch gekennzeichnet, daß das Kühlmittel gesteuerte Bypaßventil (34) geschlossen wird, wenn die Vorwärmphase des Öles abgeschlossen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19750814A DE19750814C5 (de) | 1997-11-17 | 1997-11-17 | Wärmetauscher, insbesondere Ölkühler |
DE19750814 | 1997-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0916816A1 true EP0916816A1 (de) | 1999-05-19 |
EP0916816B1 EP0916816B1 (de) | 2001-09-19 |
Family
ID=7848931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98120967A Expired - Lifetime EP0916816B1 (de) | 1997-11-17 | 1998-11-05 | Wärmetauscher, insbesondere Ölkühler mit einem eingeschlossenen Regelventil, sowie Verfahren zur Regelung des Wärmetausches |
Country Status (3)
Country | Link |
---|---|
US (1) | US6182749B1 (de) |
EP (1) | EP0916816B1 (de) |
DE (2) | DE19750814C5 (de) |
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EP1560097A3 (de) * | 2004-01-28 | 2009-01-21 | Modine Manufacturing Company | Thermostat-Regelventil mit Gehäuse an einem Wärmeüberträger |
DE102007052263A1 (de) * | 2007-11-02 | 2009-05-07 | Bayerische Motoren Werke Aktiengesellschaft | Thermostatventilanordnung |
EP2177722A2 (de) * | 2008-10-14 | 2010-04-21 | Valeo Systemes Thermiques | An ein Fahrzeugkühlmodul anfügbares Ventilgehäuse, Fahrzeugkühlmodul und Kombination dafür |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10019029B4 (de) | 2000-04-18 | 2012-10-04 | Behr Thermot-Tronik Gmbh | Vorrichtung zum Kühlen und/oder Temperieren von Öl |
DE10019029A1 (de) * | 2000-04-18 | 2001-10-31 | Behr Thermot Tronik Gmbh & Co | Vorrichtung zum Kühlen und/oder Temperieren von Öl |
US6401670B2 (en) | 2000-04-18 | 2002-06-11 | Behr Thermot-Tronik Gmbh & Co, | Device for regulating the temperature of oil |
ES2199017A1 (es) * | 2000-04-18 | 2004-02-01 | Behr Thermot Tronik Gmbh & Co | Dispositivo para enfriar y/o temperar aceite |
FR2807818A1 (fr) | 2000-04-18 | 2001-10-19 | Behr Thermot Tronik Gmbh Co | Dispositif pour refroidir et/ou faire tiedir de l'huile |
DE10019029C5 (de) * | 2000-04-18 | 2017-11-23 | Mahle International Gmbh | Vorrichtung zum Kühlen und/oder Temperieren von Öl |
EP1560097A3 (de) * | 2004-01-28 | 2009-01-21 | Modine Manufacturing Company | Thermostat-Regelventil mit Gehäuse an einem Wärmeüberträger |
EP1789747B1 (de) * | 2004-09-17 | 2015-08-26 | Danfoss A/S | Wärmetauscher |
WO2006032083A1 (en) * | 2004-09-23 | 2006-03-30 | Rheem Australia Pty Limited | Overtemperature protection system |
AU2005287863B2 (en) * | 2004-09-23 | 2011-04-28 | Rheem Australia Pty Limited | Overtemperature protection system |
EP1892389A1 (de) * | 2006-08-09 | 2008-02-27 | Peugeot Citroen Automobiles SA | Vorrichtung zum steuern eines Kühlflüssigkeitskreislaufs sowie des Schmierölkreislaufs einer Fahrzeugwärmekraftmaschine |
FR2904857A1 (fr) * | 2006-08-09 | 2008-02-15 | Peugeot Citroen Automobiles Sa | Dispositif permettant de commander un circuit de circulation d'un liquide de refroidissement ainsi qu'un circuit de circulation d'huile de lubrification d'un moteur thermique de vehicule |
DE102007052263A1 (de) * | 2007-11-02 | 2009-05-07 | Bayerische Motoren Werke Aktiengesellschaft | Thermostatventilanordnung |
DE102007052263B4 (de) | 2007-11-02 | 2021-11-04 | Bayerische Motoren Werke Aktiengesellschaft | Thermostatventilanordnung |
EP2177722A2 (de) * | 2008-10-14 | 2010-04-21 | Valeo Systemes Thermiques | An ein Fahrzeugkühlmodul anfügbares Ventilgehäuse, Fahrzeugkühlmodul und Kombination dafür |
EP2177722A3 (de) * | 2008-10-14 | 2010-06-02 | Valeo Systemes Thermiques | An ein Fahrzeugkühlmodul anfügbares Ventilgehäuse, Fahrzeugkühlmodul und Kombination dafür |
US9383144B2 (en) | 2009-05-27 | 2016-07-05 | Modine Manufacturing Company | Heat transfer unit |
Also Published As
Publication number | Publication date |
---|---|
DE19750814C2 (de) | 2000-11-23 |
DE19750814C5 (de) | 2005-08-18 |
EP0916816B1 (de) | 2001-09-19 |
DE59801507D1 (de) | 2001-10-25 |
DE19750814A1 (de) | 1999-06-02 |
US6182749B1 (en) | 2001-02-06 |
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