US20110259548A1 - Heat exchanger and related method of manufacture - Google Patents
Heat exchanger and related method of manufacture Download PDFInfo
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- US20110259548A1 US20110259548A1 US13/126,322 US200913126322A US2011259548A1 US 20110259548 A1 US20110259548 A1 US 20110259548A1 US 200913126322 A US200913126322 A US 200913126322A US 2011259548 A1 US2011259548 A1 US 2011259548A1
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- Prior art keywords
- radiator
- oil
- tank
- coolant
- tubes
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Classifications
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- 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
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
- F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
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- 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
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/08—Arrangements of lubricant 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
- 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
- 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
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
-
- 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
- F28F9/0234—Header boxes; End plates having a second heat exchanger disposed there within, e.g. oil cooler
-
- 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
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- 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
- F28D2021/0091—Radiators
- F28D2021/0094—Radiators for recooling the engine coolant
Definitions
- the present teachings generally relate to a heat exchanger for an internal combustion engine of a motor.
- FIGS. 1 and 2 An exemplary cooling radiator for a motor vehicle is illustrated in FIGS. 1 and 2 and generally identified at reference character 1 .
- the radiator 1 is illustrated to generally include a pair of headers 2 and a plurality of tubes 3 extending between the headers 2 .
- the tubes 3 are inserted into the headers 2 and brazed to the headers 2 to prevents leakage. Coolant circulates through the plurality of tubes 3 .
- Plastic tanks 4 are mounted to the headers 2 . As illustrated, an edge 5 of the headers 2 may be rolled over a flange 6 of the tanks 4 for securing the tanks 4 to the headers 2 .
- a gasket 8 may be placed between the headers 2 and the associated tank 4 to prevent leakage.
- Coolant may be circulated through the tubes 3 . As the tubes 3 are exposed to the atmosphere, heat may be released from the coolant in this manner. Cooling fins (not shown) may be located between the radiator tubes 3 . The fins may increase the total heat exchange area between the radiator 1 and the atmosphere.
- the present teachings provide a heat exchanger for an internal combustion engine of a motor.
- the heat exchanger includes first and second radiator tanks and a plurality of radiator tubes extending between the first and second radiator tanks.
- the first radiator tank includes a plurality of walls. Brazed joints are between the plurality of walls to make the first radiator tank liquid tight. Brazed joints are also between the plurality of radiator tubes and the first and second radiator tanks.
- An oil-cooling structure is disposed in the first radiator tank. The brazed joints between the plurality of walls and between the plurality of radiator tubes and the first and second radiator tanks are simultaneously formed.
- the present teachings provide a method of manufacturing a heat exchanger for an internal combustion engine of a motor.
- the method includes providing a first radiator tank including a plurality of aluminum panels and providing a second radiator tank constructed of aluminum.
- the method additionally includes providing a plurality of aluminum radiator tubes.
- the method further includes brazing the heat exchanger to simultaneously joint the plurality of aluminum panels of the first radiator tank in a fluid-tight manner and join the plurality of radiator tubes to both the first and second radiator tanks.
- the present teachings provide a heat exchanger for an internal combustion engine of a motor including a first radiator tank, an oil-cooling structure and a plurality of aluminum radiator tubes.
- the first radiator tank includes a plurality of aluminum walls brazed together to define a liquid-tight structure.
- the first radiator tank defines an oil inlet chamber, an oil outlet chamber and a coolant chamber therebetween.
- a first wall of the plurality of aluminum walls is disposed between the oil inlet chamber and the coolant chamber and a second wall of the plurality of aluminum walls is disposed between the oil outlet chamber and the coolant chamber.
- An oil-cooling structure is disposed in the first radiator tank.
- the oil-cooling structure includes a plurality of convoluted tubes disposed in the coolant chamber and extending between the oil inlet chamber and the oil outlet chamber. Brazed joints secure the plurality of convoluted tubes to the first and second walls of the plurality of aluminum walls.
- the plurality of aluminum radiator tubes are brazed to the first and second radiator tanks and provide fluid communication between the coolant chamber and the second radiator tank.
- FIG. 1 is a sectional view of a prior art cooling radiator
- FIG. 2 is another sectional view of the prior art cooling radiator of FIG. 1 ;
- FIG. 3 is a side view shown in partial cross section of a heat exchanger constructed in accordance with the present teachings
- FIG. 4 is another view of the heat exchanger of FIG. 3 shown in partial cross section;
- FIG. 5 is a schematic view of another heat exchanger in accordance with the present teachings, the heat exchanger illustrated to include a bi-metal oil valve and a bi-metal coolant valve, the bi-metal oil valve illustrated in an open position, the bi-metal coolant valve shown in a closed position or condition;
- FIG. 6 is a cross-sectional view of a portion of FIG. 5 , the bi-metal coolant valve shown in the closed position;
- FIG. 7 is an enlarged view of a portion of the schematic view of FIG. 5 , the oil valve shown in a closed position or condition;
- FIG. 9 is a schematic view of another heat exchanger in accordance with the present teachings with an electronically-controlled oil valve and an electronically-controlled coolant valve, the oil valve shown in a cold oil or open condition and the coolant valve shown in a cold coolant or closed condition;
- FIG. 10 is an enlarged view of a portion of FIG. 9 ;
- FIG. 11 is a view similar to FIG. 10 , the coolant valve shown in an open condition
- FIG. 12 is an enlarged view of a portion of FIG. 9 , the oil valve shown in a hot oil or closed condition;
- FIG. 13 is a schematic view of another heat exchanger in accordance with the present teachings, the heat exchanger including a wax element coolant valve and a wax element oil valve, the oil valve shown in an open or cold condition, the coolant valve shown in a closed or cold condition;
- FIG. 14 is an enlarged view of a portion of FIG. 13 , the coolant valve shown in a hot coolant or open condition;
- FIG. 15 is another enlarged view of a portion of FIG. 13 , the oil valve shown in a hot oil or closed condition.
- the radiator 20 is illustrated to generally include a first or upper tank 22 and a second or lower tank 24 .
- a plurality of tubes 26 extends between the upper tank 22 and the lower tank 24 .
- Cooling fins may be located between the radiator tubes 26 . The fins may increase the total heat exchange area between the radiator and the atmosphere.
- the upper tank 22 may have a closed shape.
- the closed shape may be rectangular, circular or any other suitable shape.
- the upper tank 22 may include a plurality of metal panels.
- the metal panels may be constructed of aluminum.
- the term aluminum will be understood to include aluminum alloy. Those skilled in the art will appreciated that various of the present teachings are not limited to any particular material.
- the upper tank 22 may include a main panel 28 . As shown in the side view of FIG. 4 , the main panel 28 may be generally U-shaped.
- the upper tank may additionally include a lower panel 30 and a pair of end caps 32 A and 32 B.
- the upper tank 22 may further include a pair of internal panels 34 A and 34 B.
- the lower panel 30 may serve as an integral header thereby eliminating the need for a discrete header.
- the lower panel 30 may be formed to include a plurality of openings or slots punched therein for receiving the plurality of tubes 26 .
- an oil inlet chamber 36 having an oil inlet 36 A is defined between the end cap 32 A and the internal panel 34 A.
- a coolant chamber 40 is defined between the internal panels 34 A and 34 B.
- a plurality of oil-cooling tubes 38 may extend between the internal panels 34 A and 34 B.
- the internal panels 34 A and 34 B may include a plurality of openings or slots punched therein for receiving the plurality of oil-cooling tubes 38 .
- the oil-cooling tubes 38 may be straight, convoluted, dimpled, internally equipped with turbulators or shaped in any other form that stirs the oil and forces it to frequently change direction, in order to increase heat exchange.
- the lower tank 24 may be formed similar to the upper tank 22 to include a main panel that may be generally U-shaped and a pair of end caps 42 A and 42 B.
- the lower tank 24 may further include an upper panel 44 .
- the upper panel 44 may serve as an integral header thereby eliminating the need for a discrete header.
- the upper panel 44 may be formed to include a plurality of openings or slots punched therein for receiving the plurality of tubes 26 .
- the radiator 20 may be brazed to define a liquid-tight relationship between the plurality of tubes 26 and the upper and lower tanks 22 and 24 .
- the brazing may additionally define a liquidtight relationship between the plurality of oil-cooling tubes 38 and the internal panels 34 A and 34 B.
- the brazing may define a liquid-tight relationship between the various metal panels of the respective tanks 22 and 24 .
- the water chamber 40 may be filled with coolant in the form of water or other suitable fluid.
- the plurality of oil-cooling tubes 38 may be immersed in water. When hot oil is circulated in the oil-cooling tubes 38 , heat may be extracted from the tubes 38 .
- the present teachings dramatically simplify the manufacturing process for radiators as the radiator 20 may now be assembled in one piece and brazed a single time.
- a separate oil cooler found with conventional radiators may be eliminated since the oil-cooling tubes located inside the tank provide a corresponding function.
- conventional plastic tanks may be eliminated along with the gaskets conventionally located between headers and radiator tanks.
- Discrete radiator headers are also eliminated.
- the gaskets between the oil fittings and the radiator tank walls are eliminated, because the fittings are now integral with and securely brazed to the radiator.
- the present teachings may generates significant cost savings as a result of the more simple manufacturing process and may provide a significant increase in reliability through elimination of leak paths. In this regard, the traditional leak path between the radiator tank and the radiator header is eliminated.
- FIGS. 5 through 8 a heat exchanger constructed in accordance with the present teachings is illustrated and generally identified at reference character 100 .
- the heat exchanger 100 incorporates a coolant flow control and an oil flow control. It will be understand that elements similar to the embodiment of FIGS. 3 and 4 may be similarly constructed and manufactured. Given the various similarities between the two embodiments, like reference characters will be used to identify similar elements.
- Cooling fins (not illustrated) may be located between the radiator tubes 26 . The fins may increase the total heat exchange area between the radiator and the atmosphere.
- the first tank 102 may have a closed shape.
- the closed shape may be rectangular, circular or any other suitable shape.
- the first tank 102 may include a plurality of metal panels.
- the metal panels may be constructed of aluminum. Again, those skilled in the art will appreciated that various of the present teachings are not limited to any particular material.
- the first tank 102 may include a main panel 106 .
- the main panel 106 may be generally U-shaped.
- the first tank 102 may additionally include a panel 108 with slots punched therein for receiving the plurality of tubes 26 .
- the main panel 106 may define a coolant outlet 106 A.
- the first tank 102 may include internal panels and end caps similar to the previously described embodiment. As alternatively illustrated, the first tank 102 may include may include an oil inlet tank 110 defining an oil inlet 110 A and an oil outlet tank 112 defining an oil outlet 112 A.
- the upper tank 22 may further include a pair of end caps 32 A and 32 B, and a pair of internal panels 34 A and 34 B.
- the lower panel 30 may serve as an integral header thereby eliminating the need for a discrete header.
- the lower panel 30 may be formed to include a plurality of openings or slots punched therein for receiving the plurality of tubes 26 .
- a plurality of oil-cooling tubes 38 may extend between the oil inlet tank 110 and the oil outlet tank 112 .
- the oil inlet tank 110 and the oil outlet tank 112 may include a plurality of openings or slots punched therein for receiving the plurality of oil-cooling tubes 38 .
- the oil-cooling tubes 38 may be straight, convoluted, dimpled, internally equipped with turbulators or shaped in any other form that stirs the oil and forces it to frequently change direction, in order to increase heat exchange.
- the oil-cooling tubes 38 may be brazed to the panels 34 A and 34 B.
- the heat exchanger may further include a bypass arrangement for selectively providing additional fluid communication between the oil inlet tank 110 and the oil outlet tank 112 .
- This fluid communication may be in addition to the fluid communication constantly provided by the plurality of oil-cooling tubes 38 .
- the bypass arrangement provides for the additional fluid communication between the oil inlet and outlet tanks 110 and 112 under a first operating condition and precludes or blocks the additional fluid communication between the oil inlet and outlet tanks 110 and 112 under a second operating condition.
- the first and second operating conditions may be dependent on the temperature of the oil in the oil inlet tank 110 .
- the bypass arrangement may include a bypass tube 120 in fluid communication with the oil inlet and outlet tanks 110 and 112 and means for selectively blocking the bypass tube 120 .
- the heat exchanger 100 10 includes a single bypass tube 120 .
- the heat exchanger 100 may include 2 or more bypass tubes 120 within the scope of the present invention.
- the bypass tube 120 may be brazed or otherwise suitably attached to the oil inlet and outlet tanks 110 and 112 .
- the cross section of the bypass tube 120 may be elliptical in shape. Alternatively, the cross section of the bypass tube 120 may be oval, rectangular, round or any other desired shape.
- the means for selectively blocking the bypass tube 120 may be automatically responsive for blocking the bypass tube in response to a predetermined condition.
- This predetermined condition may be reached upon a predetermined temperature of the oil in the oil inlet tank 110 .
- the means for automatically blocking the bypass tube may be responsive to block the bypass tube 120 upon a predetermined oil temperature within the oil inlet tank 110 .
- This predetermined temperature may be approximately 160 degrees Fahrenheit or any other identified temperature.
- the means for selectively blocking the bypass tube 120 may include a temperature-responsive valve 124 .
- the temperature-responsive valve 124 may include an element 126 movable between a first position and a second position in response to a change in temperature.
- the temperature-responsive element 126 may be generally U-shaped, having a first or fixed end secured to the tank 110 and a second or free end movable relative to the tube 120 .
- the first position of the element 126 is shown in FIG. 5 . In this first position, the element 126 is spaced from the bypass tube 120 and allows for the flow of oil between the oil inlet tank 110 and the oil outlet tank 112 .
- the second position is shown in FIG. 7 and operates to prevent oil from passing through the bypass tube 120 .
- One suitable U-shaped bi-metal element is shown and described in common assigned U.S. Publication No. 2009/0114,183, which is incorporated by reference as if fully set forth herein.
- the element 126 of the temperature-responsive valve 124 may be a bi-metal element 126 .
- the bi-metal element 126 may be a U-shaped strip.
- the bi-metal element 126 may be disposed in the oil inlet tank 110 and secured to the oil inlet tank 110 with a bracket (not shown). Attachment of the element 126 to the bracket may be accomplished with rivets or other suitable means, including but not limited to brazing.
- the bi-metal element 126 is in the first position. Because the bypass arrangement 120 controls the maximum oil pressure of the heat exchanger 100 , conventional hoses and fittings do not need to be as heavy. When most of the oil flow is through the bypass tube 120 rather than the heat exchange tubes 38 , the oil temperature rises to an optimum operating temperature more quickly. In this manner, the disadvantages of cold starts are overcome.
- the bi-metal element 126 moves to the second position (as shown in FIG. 7 , for example). In this second position, an end of the bi-metal element 126 covers an end of the bypass tube 120 thereby blocking the flow of oil through the bypass tube 120 .
- the oil is resultantly routed through the heat exchange tubes 38 for cooling. It will be appreciated by those skilled in the art that the properties of the bi-metal element 126 may be selected in a conventional manner to attain closure of the bypass tube 120 at a particular temperature.
- the heat exchanger 100 may further include a coolant valve 130 for selectively controlling the flow of coolant through the plurality of tubes 26 .
- the coolant valve 130 may be automatically responsive to a predetermined condition for blocking the flow of coolant through the tubes 26 .
- the coolant valve may be operative in a closed condition and an open condition.
- the closed condition or position is shown in FIG. 6 , for example.
- the open condition or position is shown in FIG. 8 , for example. In the open position, the coolant valve 130 allows coolant to flow through the tubes 26 for cooling. In the closed condition, the coolant valve 130 routes coolant directly back to the engine.
- the predetermined condition which control opening and closing of the coolant valve 130 may be a predetermined temperature of the coolant at the coolant valve 130 .
- the means for automatically controlling the coolant valve 130 may be responsive to block an inlet to the tank 104 .
- This predetermined temperature may be approximately 160 degrees Fahrenheit or any other identified temperature.
- the means for controlling the coolant valve 130 may include a temperature-responsive valve 130 .
- the temperature-responsive valve 130 may include an element 132 movable between a first position and a second position in response to a change in temperature.
- the first position of the element 132 is shown in FIG. 6 . In this first position, the coolant valve 130 is closed and the element 132 precludes coolant from entering the tank 104 . As a result, the coolant is returned to the engine.
- the second position is shown in FIG. 8 . In this second position, the coolant valve is open and coolant is allowed to enter the tank 140 and thereafter pass through the tubes 26 for cooling.
- the element 132 of the coolant valve 130 may be a bi-metal element 132 .
- the bi-metal element 132 may be a wound strip.
- the bi-metal element 132 is operatively coupled to a rotary valve 134 .
- a free end of the bi-metal element 132 may be moveable relative to an opening so as to provide selective flow of coolant therethrough.
- One suitable valve arrangement including a bi-metal element having a wound strip is shown in commonly owned U.S. Publication No. 2007/0267510, which is hereby incorporated by reference as if fully set forth herein. It will be understood by those skilled in the art that various other bi-metal elements may be incorporated within the scope of the present teachings, including but not limited to the other forms shown and described in U.S. Publication No. 2007/0267510.
- the bi-metal element 132 moves to the second position (as shown in FIG. 8 , for example). In this second position, the bi-metal element 132 allows flow to the tank 140 , thereby preventing an excessive pressure buildup.
- the bi-metal element 132 moves to the first position (as shown in FIG. 6 , for example). The coolant is resultantly routed back to the engine without cooling. It will be appreciated by those skilled in the art that the properties of the bi-metal element 132 may be selected in a conventional manner to attain opening and closing of the coolant valve at a particular temperature.
- FIGS. 9 through 12 another heat exchanger in accordance with the present teachings is illustrated and generally identified at reference character 200 .
- the heat exchanger 200 is similar to the heat exchanger 100 described above.
- the heat exchanger 200 primarily differs from the heat exchanger 100 in that it incorporates electronically-controlled valves for controlling the flow of coolant and the flow of oil. Otherwise, it will be understood that the construction and operation of the heat exchangers 100 and 200 are substantially identical. Given the similarities between the two embodiments, like reference characters will be used to identify similar elements.
- the oil inlet tank 110 may incorporate an electronically-controlled valve 150 for controlling the flow of oil through the bypass tube 120 .
- the electronically-controlled oil valve 150 may have an electric actuator 152 that is conventionally controlled by the vehicle's electronic control unit (ECU).
- the electronically-controlled oil valve 150 may further include a plunger 154 or other mechanism for selectively blocking flow of oil through the bypass valve 120 .
- the valve 150 may be operative in a first mode or open mode and a second mode or closed mode.
- the plunger In the first mode, shown for example in FIG. 9 , the plunger may be spaced from an end of the bypass tube 120 and oil may be allowed to pass through the bypass tube 120 .
- the plunger In the second mode, shown for example in FIG. 12 , the plunger may abut the end of the bypass tube 120 and thereby prevent oil from passing through the bypass tube 120 .
- the valve 150 is controlled by the ECU to operative in the open position in cold oil conditions. As such incoming cold oil coming from the transmission is permitted to enter the radiator for circulation purposes through the bypass tube 120 , preventing an excessive pressure buildup.
- the tank 104 may incorporate an electronically-controlled coolant valve 160 for controlling the flow of coolant through the tubes 26 .
- the electronically-controlled coolant valve 160 may have an electric actuator 162 that is conventionally controlled by the vehicle's ECU.
- the electronically-controlled coolant valve 160 may further include a plunger 164 or other conventional mechanism for selectively blocking flow of coolant to the tank 104 .
- the valve 160 may be operative in a first mode or open mode and a second mode or closed mode.
- the coolant valve may be operative in a closed condition and an open condition.
- the closed condition or position is shown in FIG. 10 , for example.
- the open condition or position is shown in FIG. 11 , for example. In the open position, the coolant valve 160 allows coolant to flow through the tubes 26 for cooling. In the closed condition, the coolant valve 160 routes coolant directly back to the engine.
- FIGS. 13 through 17 another heat exchanger in accordance with the present teachings is illustrated and generally identified at reference character 300 .
- the heat exchanger 300 is similar to the heat exchanger 200 described above.
- the heat exchanger 300 primarily differs from the heat exchanger 200 in that it incorporates wax controlled valves for controlling the flow of coolant and the flow of oil. Otherwise, it will be understood that the construction and operation of the heat exchangers 200 and 300 are substantially identical. Given the similarities between the two embodiments, like reference characters will be used to identify similar elements.
- the oil inlet tank 110 may incorporate a wax controlled valve 302 for controlling the flow of oil through the bypass tube 120 .
- the wax controlled oil valve 302 may operate in a conventional manner to extend a plunger 154 in response to a predetermined temperature.
- the predetermined temperature may heat the wax of the wax controlled valve 302 to extend the plunger 154 or other mechanism for selectively blocking flow of oil through the bypass valve 120 .
- the valve 302 may be operative in a first mode or open mode and a second mode or closed mode.
- the plunger 154 may be spaced from an end of the bypass tube 120 and oil may be allowed to pass through the bypass tube 120 .
- the plunger may abut the end of the bypass tube 120 and thereby prevent oil from passing through the bypass tube 120 .
- the valve 302 is responsive to a predetermined temperature such that the valve is open below the predetermined temperature and the valve closes at or above the predetermined temperature. As such incoming cold oil coming from the transmission is permitted to enter the radiator for circulation purposes through the bypass tube 120 , preventing an excessive pressure buildup.
- the tank 104 may incorporate a wax controlled coolant valve 310 for controlling the flow of coolant through the tubes 26 .
- the wax controlled coolant valve 310 may be automatically responsive to a predetermined temperature.
- the valve 310 may be operative in a first mode or open mode and a second mode or closed mode.
- the coolant valve may be operative in a closed condition and an open condition.
- the closed condition or position is shown in FIG. 10 , for example.
- the open condition or position is shown in FIG. 11 , for example.
- the coolant valve 310 allows coolant to flow through the tubes 26 for cooling.
- the coolant valve 310 routes coolant directly back to the engine.
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Abstract
Description
- The present application claims priority to U.S. provisional application Ser. No. 61/197,268, filed on 27 Oct. 2008, which is incorporated by reference as if fully set forth herein.
- The present teachings generally relate to a heat exchanger for an internal combustion engine of a motor.
- This section provides background information related to the present disclosure which is not necessarily prior art.
- Radiators are conventionally used in motor vehicles for cooling of internal combustion engines. An exemplary cooling radiator for a motor vehicle is illustrated in
FIGS. 1 and 2 and generally identified at reference character 1. The radiator 1 is illustrated to generally include a pair ofheaders 2 and a plurality oftubes 3 extending between theheaders 2. Thetubes 3 are inserted into theheaders 2 and brazed to theheaders 2 to prevents leakage. Coolant circulates through the plurality oftubes 3.Plastic tanks 4 are mounted to theheaders 2. As illustrated, anedge 5 of theheaders 2 may be rolled over aflange 6 of thetanks 4 for securing thetanks 4 to theheaders 2. Agasket 8 may be placed between theheaders 2 and the associatedtank 4 to prevent leakage. - Coolant may be circulated through the
tubes 3. As thetubes 3 are exposed to the atmosphere, heat may be released from the coolant in this manner. Cooling fins (not shown) may be located between theradiator tubes 3. The fins may increase the total heat exchange area between the radiator 1 and the atmosphere. - As further illustrated, a transmission oil cooler 9 may be conventionally placed inside one of the
radiator tanks 4. The transmission oil cooler 9 may include a plurality oftubes 10 for circulating circulate hot transmission fluid between anoil inlet tank 11 having anoil inlet 11A and anoil outlet tank 12 having an oil outlet 12A. The transmission oil cooler 9 is immersed into the coolant that fills theradiator tank 4. The oil is cooled because even though the coolant is also hot, its temperature is significantly lower than the oil temperature. The temperature differential is used to transfer heat from the oil to the coolant, and ultimately to the atmosphere. - This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.
- In accordance with one particular form, the present teachings provide a heat exchanger for an internal combustion engine of a motor. The heat exchanger includes first and second radiator tanks and a plurality of radiator tubes extending between the first and second radiator tanks. The first radiator tank includes a plurality of walls. Brazed joints are between the plurality of walls to make the first radiator tank liquid tight. Brazed joints are also between the plurality of radiator tubes and the first and second radiator tanks. An oil-cooling structure is disposed in the first radiator tank. The brazed joints between the plurality of walls and between the plurality of radiator tubes and the first and second radiator tanks are simultaneously formed.
- In accordance with another particular form, the present teachings provide a heat exchanger for an internal combustion engine of a motor. The heat exchanger includes a first radiator tank, a second radiator tank and a plurality of aluminum radiator tubes. The first radiator tank includes a plurality of aluminum walls brazed together to define a liquid-tight structure. The first radiator tank defines an oil inlet chamber, an oil outlet chamber and a coolant chamber therebetween. The second radiator tank constructed of aluminum. An oil-cooling structure is disposed in the first radiator tank. The plurality of aluminum radiator tubes are brazed to the first and second radiator tanks provide fluid communication between the coolant chamber and the second radiator tank.
- In accordance with yet another particular form, the present teachings provide a method of manufacturing a heat exchanger for an internal combustion engine of a motor. The method includes providing a first radiator tank including a plurality of aluminum panels and providing a second radiator tank constructed of aluminum. The method additionally includes providing a plurality of aluminum radiator tubes. The method further includes brazing the heat exchanger to simultaneously joint the plurality of aluminum panels of the first radiator tank in a fluid-tight manner and join the plurality of radiator tubes to both the first and second radiator tanks.
- In accordance with still yet another form, the present teachings provide a heat exchanger for an internal combustion engine of a motor including a first radiator tank, an oil-cooling structure and a plurality of aluminum radiator tubes. The first radiator tank includes a plurality of aluminum walls brazed together to define a liquid-tight structure. The first radiator tank defines an oil inlet chamber, an oil outlet chamber and a coolant chamber therebetween. A first wall of the plurality of aluminum walls is disposed between the oil inlet chamber and the coolant chamber and a second wall of the plurality of aluminum walls is disposed between the oil outlet chamber and the coolant chamber. An oil-cooling structure is disposed in the first radiator tank. The oil-cooling structure includes a plurality of convoluted tubes disposed in the coolant chamber and extending between the oil inlet chamber and the oil outlet chamber. Brazed joints secure the plurality of convoluted tubes to the first and second walls of the plurality of aluminum walls. The plurality of aluminum radiator tubes are brazed to the first and second radiator tanks and provide fluid communication between the coolant chamber and the second radiator tank.
- Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
- The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure:
-
FIG. 1 is a sectional view of a prior art cooling radiator; -
FIG. 2 is another sectional view of the prior art cooling radiator ofFIG. 1 ; -
FIG. 3 is a side view shown in partial cross section of a heat exchanger constructed in accordance with the present teachings; -
FIG. 4 is another view of the heat exchanger ofFIG. 3 shown in partial cross section; -
FIG. 5 is a schematic view of another heat exchanger in accordance with the present teachings, the heat exchanger illustrated to include a bi-metal oil valve and a bi-metal coolant valve, the bi-metal oil valve illustrated in an open position, the bi-metal coolant valve shown in a closed position or condition; -
FIG. 6 is a cross-sectional view of a portion ofFIG. 5 , the bi-metal coolant valve shown in the closed position; -
FIG. 7 is an enlarged view of a portion of the schematic view ofFIG. 5 , the oil valve shown in a closed position or condition; -
FIG. 8 is a view similar toFIG. 6 , illustrating the coolant valve in an open position or condition; -
FIG. 9 is a schematic view of another heat exchanger in accordance with the present teachings with an electronically-controlled oil valve and an electronically-controlled coolant valve, the oil valve shown in a cold oil or open condition and the coolant valve shown in a cold coolant or closed condition; -
FIG. 10 is an enlarged view of a portion ofFIG. 9 ; -
FIG. 11 is a view similar toFIG. 10 , the coolant valve shown in an open condition; -
FIG. 12 is an enlarged view of a portion ofFIG. 9 , the oil valve shown in a hot oil or closed condition; -
FIG. 13 is a schematic view of another heat exchanger in accordance with the present teachings, the heat exchanger including a wax element coolant valve and a wax element oil valve, the oil valve shown in an open or cold condition, the coolant valve shown in a closed or cold condition; -
FIG. 14 is an enlarged view of a portion ofFIG. 13 , the coolant valve shown in a hot coolant or open condition; and -
FIG. 15 is another enlarged view of a portion ofFIG. 13 , the oil valve shown in a hot oil or closed condition. - Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings. To the extent not otherwise described, it will be understood that the elements throughout the various views are drawn to scale.
- Exemplary embodiments consistent with the present teachings will now be described more fully with reference to the accompanying drawings.
- With initial reference to
FIGS. 3 and 4 , a radiator in accordance with the present teachings is illustrated and identified atreferences character 20. Theradiator 20 is illustrated to generally include a first orupper tank 22 and a second orlower tank 24. A plurality oftubes 26 extends between theupper tank 22 and thelower tank 24. Cooling fins (not illustrated) may be located between theradiator tubes 26. The fins may increase the total heat exchange area between the radiator and the atmosphere. - The
upper tank 22 may have a closed shape. The closed shape may be rectangular, circular or any other suitable shape. Theupper tank 22 may include a plurality of metal panels. In one particular application, the metal panels may be constructed of aluminum. As used herein, the term aluminum will be understood to include aluminum alloy. Those skilled in the art will appreciated that various of the present teachings are not limited to any particular material. - The
upper tank 22 may include a main panel 28. As shown in the side view ofFIG. 4 , the main panel 28 may be generally U-shaped. The upper tank may additionally include alower panel 30 and a pair ofend caps upper tank 22 may further include a pair ofinternal panels lower panel 30 may serve as an integral header thereby eliminating the need for a discrete header. Thelower panel 30 may be formed to include a plurality of openings or slots punched therein for receiving the plurality oftubes 26. - The various panels of the
upper tank 22 may cooperate to define distinct chambers. In this regard, anoil inlet chamber 36 having anoil inlet 36A is defined between theend cap 32A and theinternal panel 34A. Anoil outlet chamber 37 having an oil outlet 37A defined between theend cap 32B and theinternal panel 34B. Acoolant chamber 40 is defined between theinternal panels - A plurality of oil-cooling
tubes 38 may extend between theinternal panels internal panels tubes 38. The oil-coolingtubes 38 may be straight, convoluted, dimpled, internally equipped with turbulators or shaped in any other form that stirs the oil and forces it to frequently change direction, in order to increase heat exchange. - The
lower tank 24 may be formed similar to theupper tank 22 to include a main panel that may be generally U-shaped and a pair ofend caps lower tank 24 may further include anupper panel 44. Theupper panel 44 may serve as an integral header thereby eliminating the need for a discrete header. Theupper panel 44 may be formed to include a plurality of openings or slots punched therein for receiving the plurality oftubes 26. - The
radiator 20 may be brazed to define a liquid-tight relationship between the plurality oftubes 26 and the upper andlower tanks tubes 38 and theinternal panels respective tanks - The
water chamber 40 may be filled with coolant in the form of water or other suitable fluid. As such, the plurality of oil-coolingtubes 38 may be immersed in water. When hot oil is circulated in the oil-coolingtubes 38, heat may be extracted from thetubes 38. - The present teachings dramatically simplify the manufacturing process for radiators as the
radiator 20 may now be assembled in one piece and brazed a single time. A separate oil cooler found with conventional radiators may be eliminated since the oil-cooling tubes located inside the tank provide a corresponding function. Furthermore, conventional plastic tanks may be eliminated along with the gaskets conventionally located between headers and radiator tanks. Discrete radiator headers are also eliminated. The gaskets between the oil fittings and the radiator tank walls are eliminated, because the fittings are now integral with and securely brazed to the radiator. The present teachings may generates significant cost savings as a result of the more simple manufacturing process and may provide a significant increase in reliability through elimination of leak paths. In this regard, the traditional leak path between the radiator tank and the radiator header is eliminated. - Turning to
FIGS. 5 through 8 , a heat exchanger constructed in accordance with the present teachings is illustrated and generally identified atreference character 100. As will be described further below, theheat exchanger 100 incorporates a coolant flow control and an oil flow control. It will be understand that elements similar to the embodiment ofFIGS. 3 and 4 may be similarly constructed and manufactured. Given the various similarities between the two embodiments, like reference characters will be used to identify similar elements. Cooling fins (not illustrated) may be located between theradiator tubes 26. The fins may increase the total heat exchange area between the radiator and the atmosphere. - The
first tank 102 may have a closed shape. The closed shape may be rectangular, circular or any other suitable shape. Thefirst tank 102 may include a plurality of metal panels. In one particular application, the metal panels may be constructed of aluminum. Again, those skilled in the art will appreciated that various of the present teachings are not limited to any particular material. - The
first tank 102 may include a main panel 106. As with the earlier described embodiment, the main panel 106 may be generally U-shaped. Thefirst tank 102 may additionally include apanel 108 with slots punched therein for receiving the plurality oftubes 26. The main panel 106 may define acoolant outlet 106A. - The
first tank 102 may include internal panels and end caps similar to the previously described embodiment. As alternatively illustrated, thefirst tank 102 may include may include anoil inlet tank 110 defining anoil inlet 110A and anoil outlet tank 112 defining anoil outlet 112A. Theupper tank 22 may further include a pair ofend caps internal panels lower panel 30 may serve as an integral header thereby eliminating the need for a discrete header. Thelower panel 30 may be formed to include a plurality of openings or slots punched therein for receiving the plurality oftubes 26. - A plurality of oil-cooling
tubes 38 may extend between theoil inlet tank 110 and theoil outlet tank 112. Theoil inlet tank 110 and theoil outlet tank 112 may include a plurality of openings or slots punched therein for receiving the plurality of oil-coolingtubes 38. The oil-coolingtubes 38 may be straight, convoluted, dimpled, internally equipped with turbulators or shaped in any other form that stirs the oil and forces it to frequently change direction, in order to increase heat exchange. The oil-coolingtubes 38 may be brazed to thepanels - The
second tank 104 may be formed similar to thelower tank 24 to include amain panel 40 that may be generally U-shaped and a pair ofend caps second tank 104 may further include apanel 44. Theupper panel 44 may serve as an integral header thereby eliminating the need for a discrete header. Theupper panel 44 may be formed to include a plurality of openings or slots punched therein for receiving the plurality oftubes 26. - The
heat exchanger 100 may be brazed to define a liquid-tight relationship between the plurality oftubes 26 and the first andsecond tanks tubes 38 and the oil inlet andoutlet tanks respective tanks - A
coolant chamber 40 defined between the oil inlet andoutlet tanks tubes 38 may be immersed in coolant. When hot oil is circulated in the oil-coolingtubes 38, heat may be extracted from thetubes 38. - The heat exchanger may further include a bypass arrangement for selectively providing additional fluid communication between the
oil inlet tank 110 and theoil outlet tank 112. This fluid communication may be in addition to the fluid communication constantly provided by the plurality of oil-coolingtubes 38. The bypass arrangement provides for the additional fluid communication between the oil inlet andoutlet tanks outlet tanks oil inlet tank 110. - The bypass arrangement may include a
bypass tube 120 in fluid communication with the oil inlet andoutlet tanks bypass tube 120. As illustrated, theheat exchanger 100 10 includes asingle bypass tube 120. In other applications, theheat exchanger 100 may include 2 ormore bypass tubes 120 within the scope of the present invention. Thebypass tube 120 may be brazed or otherwise suitably attached to the oil inlet andoutlet tanks bypass tube 120 may be elliptical in shape. Alternatively, the cross section of thebypass tube 120 may be oval, rectangular, round or any other desired shape. - The means for selectively blocking the
bypass tube 120 may be automatically responsive for blocking the bypass tube in response to a predetermined condition. This predetermined condition may be reached upon a predetermined temperature of the oil in theoil inlet tank 110. For example, the means for automatically blocking the bypass tube may be responsive to block thebypass tube 120 upon a predetermined oil temperature within theoil inlet tank 110. This predetermined temperature may be approximately 160 degrees Fahrenheit or any other identified temperature. - The means for selectively blocking the
bypass tube 120 may include a temperature-responsive valve 124. The temperature-responsive valve 124 may include anelement 126 movable between a first position and a second position in response to a change in temperature. The temperature-responsive element 126 may be generally U-shaped, having a first or fixed end secured to thetank 110 and a second or free end movable relative to thetube 120. The first position of theelement 126 is shown inFIG. 5 . In this first position, theelement 126 is spaced from thebypass tube 120 and allows for the flow of oil between theoil inlet tank 110 and theoil outlet tank 112. The second position is shown inFIG. 7 and operates to prevent oil from passing through thebypass tube 120. One suitable U-shaped bi-metal element is shown and described in common assigned U.S. Publication No. 2009/0114,183, which is incorporated by reference as if fully set forth herein. - The
element 126 of the temperature-responsive valve 124 may be abi-metal element 126. Thebi-metal element 126 may be a U-shaped strip. Thebi-metal element 126 may be disposed in theoil inlet tank 110 and secured to theoil inlet tank 110 with a bracket (not shown). Attachment of theelement 126 to the bracket may be accomplished with rivets or other suitable means, including but not limited to brazing. When the inlet oil temperature is below the predetermined temperature, thebi-metal element 126 is in the first position. Because thebypass arrangement 120 controls the maximum oil pressure of theheat exchanger 100, conventional hoses and fittings do not need to be as heavy. When most of the oil flow is through thebypass tube 120 rather than theheat exchange tubes 38, the oil temperature rises to an optimum operating temperature more quickly. In this manner, the disadvantages of cold starts are overcome. - When the oil temperature in the
oil inlet tank 110 reaches the predetermined temperature, thebi-metal element 126 moves to the second position (as shown inFIG. 7 , for example). In this second position, an end of thebi-metal element 126 covers an end of thebypass tube 120 thereby blocking the flow of oil through thebypass tube 120. The oil is resultantly routed through theheat exchange tubes 38 for cooling. It will be appreciated by those skilled in the art that the properties of thebi-metal element 126 may be selected in a conventional manner to attain closure of thebypass tube 120 at a particular temperature. - The
heat exchanger 100 may further include acoolant valve 130 for selectively controlling the flow of coolant through the plurality oftubes 26. Thecoolant valve 130 may be automatically responsive to a predetermined condition for blocking the flow of coolant through thetubes 26. The coolant valve may be operative in a closed condition and an open condition. The closed condition or position is shown inFIG. 6 , for example. The open condition or position is shown inFIG. 8 , for example. In the open position, thecoolant valve 130 allows coolant to flow through thetubes 26 for cooling. In the closed condition, thecoolant valve 130 routes coolant directly back to the engine. - The predetermined condition which control opening and closing of the
coolant valve 130 may be a predetermined temperature of the coolant at thecoolant valve 130. For example, the means for automatically controlling thecoolant valve 130 may be responsive to block an inlet to thetank 104. This predetermined temperature may be approximately 160 degrees Fahrenheit or any other identified temperature. - The means for controlling the
coolant valve 130 may include a temperature-responsive valve 130. The temperature-responsive valve 130 may include anelement 132 movable between a first position and a second position in response to a change in temperature. The first position of theelement 132 is shown inFIG. 6 . In this first position, thecoolant valve 130 is closed and theelement 132 precludes coolant from entering thetank 104. As a result, the coolant is returned to the engine. The second position is shown inFIG. 8 . In this second position, the coolant valve is open and coolant is allowed to enter the tank 140 and thereafter pass through thetubes 26 for cooling. - The
element 132 of thecoolant valve 130 may be abi-metal element 132. Thebi-metal element 132 may be a wound strip. Thebi-metal element 132 is operatively coupled to arotary valve 134. A free end of thebi-metal element 132 may be moveable relative to an opening so as to provide selective flow of coolant therethrough. One suitable valve arrangement including a bi-metal element having a wound strip is shown in commonly owned U.S. Publication No. 2007/0267510, which is hereby incorporated by reference as if fully set forth herein. It will be understood by those skilled in the art that various other bi-metal elements may be incorporated within the scope of the present teachings, including but not limited to the other forms shown and described in U.S. Publication No. 2007/0267510. - When the coolant temperature at the
coolant valve 130 reaches the predetermined temperature, thebi-metal element 132 moves to the second position (as shown inFIG. 8 , for example). In this second position, thebi-metal element 132 allows flow to the tank 140, thereby preventing an excessive pressure buildup. When the coolant temperature at thecoolant valve 130 drops below the predetermined temperature, thebi-metal element 132 moves to the first position (as shown inFIG. 6 , for example). The coolant is resultantly routed back to the engine without cooling. It will be appreciated by those skilled in the art that the properties of thebi-metal element 132 may be selected in a conventional manner to attain opening and closing of the coolant valve at a particular temperature. - Turning to
FIGS. 9 through 12 , another heat exchanger in accordance with the present teachings is illustrated and generally identified atreference character 200. Theheat exchanger 200 is similar to theheat exchanger 100 described above. Theheat exchanger 200 primarily differs from theheat exchanger 100 in that it incorporates electronically-controlled valves for controlling the flow of coolant and the flow of oil. Otherwise, it will be understood that the construction and operation of theheat exchangers - The
oil inlet tank 110 may incorporate an electronically-controlled valve 150 for controlling the flow of oil through thebypass tube 120. The electronically-controlled oil valve 150 may have anelectric actuator 152 that is conventionally controlled by the vehicle's electronic control unit (ECU). The electronically-controlled oil valve 150 may further include aplunger 154 or other mechanism for selectively blocking flow of oil through thebypass valve 120. - The valve 150 may be operative in a first mode or open mode and a second mode or closed mode. In the first mode, shown for example in
FIG. 9 , the plunger may be spaced from an end of thebypass tube 120 and oil may be allowed to pass through thebypass tube 120. In the second mode, shown for example inFIG. 12 , the plunger may abut the end of thebypass tube 120 and thereby prevent oil from passing through thebypass tube 120. The valve 150 is controlled by the ECU to operative in the open position in cold oil conditions. As such incoming cold oil coming from the transmission is permitted to enter the radiator for circulation purposes through thebypass tube 120, preventing an excessive pressure buildup. - The
tank 104 may incorporate an electronically-controlledcoolant valve 160 for controlling the flow of coolant through thetubes 26. The electronically-controlledcoolant valve 160 may have anelectric actuator 162 that is conventionally controlled by the vehicle's ECU. The electronically-controlledcoolant valve 160 may further include aplunger 164 or other conventional mechanism for selectively blocking flow of coolant to thetank 104. - The
valve 160 may be operative in a first mode or open mode and a second mode or closed mode. The coolant valve may be operative in a closed condition and an open condition. The closed condition or position is shown inFIG. 10 , for example. The open condition or position is shown inFIG. 11 , for example. In the open position, thecoolant valve 160 allows coolant to flow through thetubes 26 for cooling. In the closed condition, thecoolant valve 160 routes coolant directly back to the engine. - Turning finally to
FIGS. 13 through 17 , another heat exchanger in accordance with the present teachings is illustrated and generally identified atreference character 300. Theheat exchanger 300 is similar to theheat exchanger 200 described above. Theheat exchanger 300 primarily differs from theheat exchanger 200 in that it incorporates wax controlled valves for controlling the flow of coolant and the flow of oil. Otherwise, it will be understood that the construction and operation of theheat exchangers - The
oil inlet tank 110 may incorporate a wax controlledvalve 302 for controlling the flow of oil through thebypass tube 120. The wax controlledoil valve 302 may operate in a conventional manner to extend aplunger 154 in response to a predetermined temperature. In this regard, the predetermined temperature may heat the wax of the wax controlledvalve 302 to extend theplunger 154 or other mechanism for selectively blocking flow of oil through thebypass valve 120. - The
valve 302 may be operative in a first mode or open mode and a second mode or closed mode. In the first mode, shown for example inFIG. 13 , theplunger 154 may be spaced from an end of thebypass tube 120 and oil may be allowed to pass through thebypass tube 120. In the second mode, shown for example inFIG. 15 , the plunger may abut the end of thebypass tube 120 and thereby prevent oil from passing through thebypass tube 120. Thevalve 302 is responsive to a predetermined temperature such that the valve is open below the predetermined temperature and the valve closes at or above the predetermined temperature. As such incoming cold oil coming from the transmission is permitted to enter the radiator for circulation purposes through thebypass tube 120, preventing an excessive pressure buildup. - The
tank 104 may incorporate a wax controlledcoolant valve 310 for controlling the flow of coolant through thetubes 26. The wax controlledcoolant valve 310 may be automatically responsive to a predetermined temperature. - The
valve 310 may be operative in a first mode or open mode and a second mode or closed mode. The coolant valve may be operative in a closed condition and an open condition. The closed condition or position is shown inFIG. 10 , for example. The open condition or position is shown inFIG. 11 , for example. In the open position, thecoolant valve 310 allows coolant to flow through thetubes 26 for cooling. In the closed condition, thecoolant valve 310 routes coolant directly back to the engine. - The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the invention, and all such modifications are intended to be included within the scope of the invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/126,322 US20110259548A1 (en) | 2008-10-27 | 2009-10-26 | Heat exchanger and related method of manufacture |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19726808P | 2008-10-27 | 2008-10-27 | |
US13/126,322 US20110259548A1 (en) | 2008-10-27 | 2009-10-26 | Heat exchanger and related method of manufacture |
PCT/US2009/062052 WO2010062553A1 (en) | 2008-10-27 | 2009-10-26 | Heat exchanger and related method of manufacture |
Publications (1)
Publication Number | Publication Date |
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US20110259548A1 true US20110259548A1 (en) | 2011-10-27 |
Family
ID=42225978
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US13/125,549 Abandoned US20120004172A1 (en) | 2008-10-27 | 2009-08-24 | Screening method of anti-lung or esophageal cancer compounds |
US13/126,322 Abandoned US20110259548A1 (en) | 2008-10-27 | 2009-10-26 | Heat exchanger and related method of manufacture |
Family Applications Before (1)
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US13/125,549 Abandoned US20120004172A1 (en) | 2008-10-27 | 2009-08-24 | Screening method of anti-lung or esophageal cancer compounds |
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US (2) | US20120004172A1 (en) |
WO (1) | WO2010062553A1 (en) |
Cited By (2)
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GB2499975A (en) * | 2012-01-12 | 2013-09-11 | ECONOTHERM UK Ltd | Heat transfer unit and a heat exchanger |
US20160025006A1 (en) * | 2014-07-24 | 2016-01-28 | United Technologies Corporation | Self-cooled orifice structure |
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EP2812769B1 (en) | 2012-02-09 | 2018-11-07 | Hewlett-Packard Enterprise Development LP | Heat dissipating system |
KR20140132333A (en) | 2012-03-12 | 2014-11-17 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | Liquid temperature control cooling |
US20140060784A1 (en) * | 2012-08-29 | 2014-03-06 | Adam Ostapowicz | Heat exchanger including an in-tank oil cooler with improved heat rejection |
EP2901828A4 (en) * | 2012-09-28 | 2016-06-01 | Hewlett Packard Development Co | Cooling assembly |
EP2915417B1 (en) | 2012-10-31 | 2017-11-29 | Hewlett-Packard Enterprise Development LP | Modular rack system |
US20150345877A1 (en) * | 2012-12-17 | 2015-12-03 | Calsonic Kansei Corporation | Combined heat exchanger |
EP2952076B1 (en) | 2013-01-31 | 2019-10-30 | Hewlett-Packard Enterprise Development LP | Liquid cooling |
JP6809266B2 (en) * | 2017-02-10 | 2021-01-06 | 株式会社デンソー | Heat exchanger module |
FR3063182B1 (en) * | 2017-02-23 | 2019-07-12 | Valeo Systemes Thermiques | THERMAL CONDITIONING SYSTEM OF A MOTOR VEHICLE USING A THERMAL MANAGEMENT DEVICE OF A BATTERY PACK |
US20180292140A1 (en) * | 2017-04-10 | 2018-10-11 | Hamilton Sundstrand Corporation | Heat exchanger assembly |
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- 2009-10-26 WO PCT/US2009/062052 patent/WO2010062553A1/en active Application Filing
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US2887097A (en) * | 1955-09-19 | 1959-05-19 | Sr Thomas W Huffman | Supplemental cooling system for engine radiators |
US3428251A (en) * | 1967-02-07 | 1969-02-18 | Pall Corp | Temperature and pressure responsive valve |
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GB2499975A (en) * | 2012-01-12 | 2013-09-11 | ECONOTHERM UK Ltd | Heat transfer unit and a heat exchanger |
US20160025006A1 (en) * | 2014-07-24 | 2016-01-28 | United Technologies Corporation | Self-cooled orifice structure |
US9810148B2 (en) * | 2014-07-24 | 2017-11-07 | United Technologies Corporation | Self-cooled orifice structure |
Also Published As
Publication number | Publication date |
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US20120004172A1 (en) | 2012-01-05 |
WO2010062553A1 (en) | 2010-06-03 |
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Owner name: COOPER-STANDARD AUTOMOTIVE INC., MICHIGAN Free format text: TERMINATION AND RELEASE OF SECURITY INTEREST PREVIOUSLY RECORDED AT REEL/FRAME (032608/0179);ASSIGNOR:DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT;REEL/FRAME:062540/0124 Effective date: 20230127 |