US20150260465A1 - Retention device for a product - Google Patents
Retention device for a product Download PDFInfo
- Publication number
- US20150260465A1 US20150260465A1 US14/215,740 US201414215740A US2015260465A1 US 20150260465 A1 US20150260465 A1 US 20150260465A1 US 201414215740 A US201414215740 A US 201414215740A US 2015260465 A1 US2015260465 A1 US 2015260465A1
- Authority
- US
- United States
- Prior art keywords
- retention device
- guide
- product
- contact point
- set forth
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
-
- 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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
-
- 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
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0133—Auxiliary supports for elements for tubes or tube-assemblies formed by concentric strips
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- 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
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
-
- 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
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
-
- 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
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
- Y10T24/45471—Projection having movable connection between components thereof or variable configuration
- Y10T24/45524—Projection having movable connection between components thereof or variable configuration including resiliently biased projection component or surface segment
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
- Y10T24/45471—Projection having movable connection between components thereof or variable configuration
- Y10T24/45524—Projection having movable connection between components thereof or variable configuration including resiliently biased projection component or surface segment
- Y10T24/45529—Requiring manual force applied against bias to interlock or disengage
Definitions
- the field to which the disclosure generally relates to includes retention device.
- Retention devices may be used in a variety of applications.
- a number of variations may include a product comprising a retention device comprising a plurality of members, including an arch member and a spring member defining multiple contact points.
- FIG. 1 is a schematic illustration of an EGR system in which a number of variations may be utilized.
- FIG. 2 illustrates a heat heater in which a number of variations may be utilized.
- FIG. 3 is an illustration of the heat exchange of FIG. 2 with the housing removed.
- FIG. 3A is an enlarged view of a portion of FIG. 3 .
- FIG. 4 is a perspective sectional view of the heat exchange in FIG. 2 .
- FIG. 5 illustrates a baffle which may be utilized in a number of variations.
- FIG. 6 illustrate a product including a heat exchange bundle of tube having a retention device thereon according to a number of variations.
- FIG. 7 is a section illustration of retention device according to a number of variations.
- FIG. 8 is a perspective view of a product including a heat exchange bundle of tube having a retention device thereon according to a number of variations.
- FIG. 9 is a perspective view of a product including a heat exchange bundle of tube having two retention devices thereon according to a number of variations.
- FIG. 10 is a partial perspective view of a first retention device and second retention device have mating fastening and guide features in a connected arrangement according to a number of variations.
- FIG. 11 is a partial perspective view of a first retention device and second retention device have mating fastening and guide features in an unconnected arrangement according to a number of variations.
- FIG. 12 is a perspective sectional view of a heat exchanger having a first retention device and second retention device thereon according to a number of variations.
- FIG. 13 is an enlarged view of a portion of FIG. 12 .
- FIG. 14 is an enlarged view of a portion of FIG. 13 .
- FIG. 15 is a perspective view of a heat exchanger having a first retention device and second retention device in unconnected positions and ready for assembly with the heat exchanger according to a number of variations.
- FIG. 16 is a perspective view of a heat exchanger having a first retention device and second retention device in a connected relationship and assembled to the heat exchanger according to a number of variations.
- FIG. 17 is a perspective view of a retention device according to a number of variations.
- FIG. 18 is a perspective view of a first retention device and a first retention device which may have mating locking and/or guide feature and illustrating the direction of movement of the retention devices for assembly according to a number of variations.
- FIG. 19 is a perspective view of a first retention device and a first retention device which may have mating locking and/or guide feature and which may be connected together according to a number of variations.
- Oxides of Nitrogen (NOx) and particulate matter are two components of the engine exhaust emissions that must be controlled.
- EGR exhaust gas recirculation
- FIG. 1 A schematic of an EGR system is shown in FIG. 1 .
- the engine 1 may have an intake manifold 2 and an exhaust Manifold 3 .
- the EGR system may include an exhaust gas recirculation (EGR) valve 4 that controls the flow of exhaust gas to intake manifold 2 .
- the heat exchanger 5 may be used to reduce the temperature of the exhaust gas.
- Conduits 6 , 7 , 8 , 9 and 10 may provide the interconnection between the exhaust manifold 3 , heat exchanger 5 , EGR Valve 4 , and Intake manifold 2 .
- the system shown may use an electrically controlled EGR valve.
- An electronic control unit (ECU) 11 may provide a signal that will control the opening/closing of the valve. As the EGR valve opens and closes it will increase or decrease the flow rate of exhaust gas to the intake manifold.
- a throttle valve 12 may be provided to control airflow into the intake manifold.
- a portion of the exhaust gas may be recirculated back to the intake manifold where it will be combined with incoming air and fuel.
- the exhaust gas portion of the mixture does not support combustion and when this mixture is compressed and ignited in the cylinder, the inert exhaust gas will control the combustion temperature and limit the formation of NOx and particulate in the exhaust.
- the temperature of the recirculated exhaust gas may be a factor that determines the effectiveness of the NOx and particulate reduction. It is common for an EGR system to include a heat exchanger to remove heat from the exhaust gas and provide an optimize exhaust gas temperature for controlling emissions.
- FIGS. 2 , 3 , and 4 One type of heat exchanger 13 is shown in FIGS. 2 , 3 , and 4 . It may include a number of tubes 15 in a rectangular array 16 . Tube 15 may have an inner surface 29 , wall 30 , and outer surface 25 , as shown in FIGS. 3 , 3 A View A and 4 . This rectangular array 16 may also be referred to as the core and exchanger 13 may include one or more cores.
- the tubes 15 may be made of a metal such as stainless steel, aluminum or other suitable material.
- the core 16 may include metal headers 17 and 18 located at either end of the tubes 15 .
- the headers 17 and 18 may also be made of a metal such as stainless steel, aluminum or other suitable material.
- the tubes 15 may be secured and sealed to metal headers 17 and 18 by brazing, soldering, or other suitable means.
- the core 16 may be placed in a housing 14 and may be sealed into the housing by a gasket 19 , O-ring 20 or other suitable means. At one end, header 18 may be attached to a cone 21 to transition to the O-ring seal 20 . Housing 14 , core 16 , cone 21 , gasket 19 , and O-ring 20 may define a sealed space 22 within the housing 14 . Sealed space 22 may be suitable for introducing a cooling fluid 24 that may contact tubes 15 in the rectangular array 16 . Header 17 and gasket 19 may have a first opening 23 to allow a cooling fluid 24 to flow into sealed space 22 . Cooling fluid 24 may contact the outer surface 25 of tubes 15 . Header 17 and gasket 19 may also have a second opening 26 that may allow cooling fluid 24 to exit sealed space 22 .
- a fluid or gas 27 may enter tubes 15 from a first end 28 .
- the fluid or gas 27 may be exhaust gas from an internal combustion engine.
- the exhaust gas 27 may be at a first temperature, for example 600° C.
- Exhaust gas 27 may flow through tubes 15 and may exit at a second end 29 .
- Cooling fluid 24 may enter sealed space 22 and may contact the outer surface 25 of tubes 15 as shown in FIG. 3 . Cooling fluid 24 may be at a lower temperature than exhaust gas 27 , for example 100° C.
- the first effect may be the exhaust gas 27 exiting tubes 15 at second end 29 may be at a lower temperature than the exhaust gas 27 entering tubes 15 at the first end 28 .
- exhaust gas 27 entering tubes 15 , at first end 28 may be at 600° C.
- the exhaust gas 27 exiting tubes 15 , at second end 29 may be at 200° C.
- the reduction in temperature may, in part, be due to the transfer of heat from exhaust gas 27 , to tubes 15 , and to cooling fluid 24 in sealed space 22 .
- the second effect may be the cooling fluid 24 exiting sealed space 22 at second opening 26 may be at a higher temperature than the cooling fluid 24 entering sealed space 22 at the first opening 23 .
- the cooling fluid 24 exiting sealed space 22 , at second opening 26 may be at 110° C. and the cooling fluid 24 entering sealed space 22 , at first opening 23 may be at 100° C.
- the increase in temperature may, in part, be due to the transfer of heat from exhaust gas 27 , to tubes 15 , and to cooling fluid 24 in sealed space 22 .
- Both first and second effects may be influenced in-part by parameters such as; the temperature of exhaust gas 27 entering tubes 15 , the flow rate of exhaust gas 27 , the materials of tubes 15 , the wall thickness of tube 15 , the length of tube 15 , the surface area of tube 15 , the fluid properties of the cooling fluid 24 in sealed space 22 , the flow rate of the cooling fluid 24 in sealed space 22 , or other parameters.
- a baffle 31 shown in FIGS. 4 and 5 may be located along the length of tubes 15 .
- the baffle 31 may be a metal plate with multiple openings 32 that will receive and support tubes 15 .
- Baffle 31 may add support but it may not be sufficient with high levels of vibration that may cause movement of the tubes 15 and the potential for fatigue of the tubes, the brazing joints, or other components.
- FIG. 6 shows a partial assembly of heat exchanger 13 with a retention device 33 installed on core 16 .
- Retention device 33 may include at least one spring member 34 .
- FIG. 7 shows a portion of retention device 33 and spring member 34 viewed in the direction of arrow 44 .
- Retention device 33 may include a first arch member 35 and a second member 36 extending from a first end 37 of first arch member 35 .
- There may be a radius 38 at the transition between first arch member 35 and second member 36 that may define a first contact point 39 .
- Spring member 34 may extend from third member 40 and may define a third contact point 45 along the length of spring member 34 .
- Spring member 34 may include a curved section 46 which may include the third contact point 45 as shown in FIG. 7 .
- retention device 33 may function in the following manner.
- spring member 34 may deflect in direction 49 and transmit a force to the substantially rigid surface at first contact point 39 and second contact point 43 .
- force 48 is applied, first arch member 35 will remain substantially in the form of the arch and only the first contact point 39 and second contact point 43 will substantially contact rigid surface 47 .
- the arch form of first arch member 35 and the minimum contact with rigid surface 47 may allow a less impeded movement of the retention device 33 along substantially rigid surface 47 .
- the deflection of spring member 34 , in direction 49 is shown as dashed line form 34 A, in FIG. 7 .
- spring member 34 may extend along an axis 50 for a length 51 .
- the length 51 may be 5 mm, 10 mm, or other suitable length to achieve the desired retention requirements.
- There may be an interrupted length 52 along axis 50 followed by a second spring member 34 B having a length 53 along axis 50 .
- Second spring member 34 B may have the same length as first spring member 34 or it may have another length to achieve the desired retention requirements.
- the spring retention device 33 may be manufactured in many shapes to fit the shape of a core. For example it may be manufactured in rectangular shape to fit a rectangular core, a circular shape to fit a circular core, or other shape to suitably fit a core.
- FIG. 9 shows retention device 33 installed on rectangular core 16 of heat exchanger 13 .
- Retention device 33 has been formed in a rectangular shape to fit the shape of core 16 .
- the retention device 33 may be attached and retained to core 16 by interconnecting features 54 which may include a receptacle 55 and an engagement member 56 as seen in FIG. 10 View B and FIG. 11 .
- interconnecting features 54 may include a receptacle 55 and an engagement member 56 as seen in FIG. 10 View B and FIG. 11 .
- engagement member 56 engages receptacle 55
- retention device 33 will define a closed form or loop and may be retained to core 16 as shown in FIG. 9 .
- FIG. 12 , FIG. 13 View C, and FIG. 14 view D show retention device 33 installed on core 16 .
- Retention device 33 may be assembled to core 16 prior to installing core 16 into housing 14 .
- Core 16 along with retention devices 33 may be slid into housing 14 until core 16 comes into sealing contact with housing 14 .
- Retention device 33 may engage housing 14 within space 22 .
- a distance 57 , between tubes 15 and an inside wall 58 of housing 14 may be less than a distance 59 between contact points 39 , 43 , and 45 on spring member 34 of retention device 33 . It may be noted that distance 57 may be similar for each of the four inside walls of housing 14 that confront tubes 15 of core 16 .
- dimension 57 may be less than dimension 59 , there may be an interference dimension 60 that that is substantially the difference between dimension 59 and dimension 57 .
- the interference dimension 60 may be substantially 1 mm when dimension 59 is 7 mm and dimension 57 is 6 mm.
- Dimension 60 may vary with the tolerance of the components.
- interference dimension 60 may be 1 mm, 2 mm, or other dimension that will provide the desired level of retention.
- the selection of interference dimension 60 may in-part be based upon the level of vibration, level of mechanical shock, or other relevant parameter.
- the contact with inside wall 58 and interference 60 may provide a force 73 on third contact point 45 and deflect spring member 34 in direction 62 .
- Force 73 may cause first contact point 39 and second contact point 43 , of retention device 33 , to contact tubes 15 and transmit a force to the tubes.
- Tubes 15 may form a substantially rigid surface, for first contact point 39 and second contact point 43 .
- force 73 is applied to the third contact point 45 and spring member 34 deflects in direction 62 , first arch member 35 will substantially remain in the form of the arch and only the first contact point 39 and second contact point 43 may substantially contact tubes 15 .
- the deflected position 34 A of spring member 34 in direction 62 , is shown as a solid line in FIG. 14 View D.
- the initial position of spring member 34 is shown as dashed lines.
- the arched form of first arch member 35 and the minimum contact with the rigid surface of tubes 15 may allow a less impeded movement of retention device 33 along the surface of tubes 15 . It may also be possible that only one of the first or second contact points, 39 or 43 , may contact the rigid surface of tubes 15 . This may be in-part result from dimensional differences of components, assembly variation, or other factors.
- Retention device 33 may extend along the four sides of the rectangular core 16 and may include additional portions of spring member 34 . Retention device 33 may contact four inside surfaces of rectangular housing 14 . Additional portions of spring member 34 may provide a force on tubes 15 at each location that may tend to prevent movement of the tubes 15 and core 16 when a force is applied to the heat exchanger 13 . The force may be applied in any direction to heat exchanger 13 and may result from an impact, vibration, or other force. Preventing or limiting movement of tubes 15 and core 16 may lessen the potential for fatigue and failure of tube 15 , brazing joints, or other component.
- guide feature 61 may include two guide members 62 and 63 formed in retention device 33 .
- Guide feature 61 may be designed to receive a guide portion 64 of retention device 33 that may include receptacle 55 or engagement feature 56 .
- guide portion 64 may include receptacle 55 as shown in FIGS. 10 View B and 11 .
- Guide feature 61 including guide members 62 and 63 , may align guide portion 64 , receptacle 55 , engagement feature 56 , and facilitate engagement thereof as shown in FIGS. 9 and 10 View B.
- guide feature 61 may include a first guide members 62 and second guide member 63 that may retain guide portion 64 and may prevent disengagement.
- An existing portion of retention device 33 may be used as a guide member.
- guide member 63 may be a portion of the first arch member 35 , second member 40 , or spring member 34 as shown in FIG. 11 .
- a guide member may also be formed as a separate portion of retention device 33 such as guide member 62 also shown in FIGS. 10 View B and 11 .
- Installing a one-piece retention device may require deformation to assemble it to the core.
- to efficiently install the retention device it may be made in two pieces as shown in FIG. 15 .
- the 2-piece design may include a first retention device 33 A and second retention device 33 B.
- the 2-piece design will allow installation after assembly of core 16 , including tubes 15 , header 17 , header 18 , and baffle 31 .
- the retention devices are shown assembled to core 16 in FIG. 16 .
- FIG. 17 shows first retention device 33 A.
- Retention device 33 A may have a first member 65 , second member 66 , and third member 67 formed to fit rectangular core 16 . Each of the first, second, and third members may have a spring members 34 spaced along each member.
- Retention device 33 A may have interconnecting feature 54 comprising receptacle 55 and engagement member 56 as previously described herein.
- Receptacle 55 may be located at a first end 68 of retention device 33 A and engagement member 56 may be located at second end 70 .
- Retention device 33 A may also include guide feature 61 and guide portion 64 also preciously described herein.
- Guide feature 61 and guide portion 64 may be located at the first or second ends 68 and 70 of retention device 33 A.
- guide feature 61 may be located at the second end 70 and guide portion 64 may be located at the first end 68 as shown in FIG. 17 .
- Guide portion 64 may also include receptacle 55 also shown in FIG. 17 .
- First retention device 33 A and second retention device 33 B may be substantially identical in form and may be made from the same manufacturing process. This may reduce cost, reduce tooling requirements, improve assembly, or provide other advantages.
- First retention device 33 A and second retention device 33 B may be assembled to the core by rotating one of the first or second retention devices 180° about axis 69 and aligning them as shown in FIGS. 18 and 19 .
- Guide feature 61 located at second end 70 of first retention device 33 A may align and receive guide portion 64 located at first end 68 of second retention device 33 B.
- Guide feature 61 located at second end 70 of second retention device 33 B may align and receive guide portion 64 located at first end 68 of first retention device 33 A.
- the continued engagement of first and second retention devices 33 A and 33 B in the direction of arrows 71 and 72 may cause engagement feature 56 , of first retention device 33 A, to engage receptacle 55 of second retention device 33 B. Continued engagement may also cause engagement feature 56 of second retention device 33 B to engage receptacle 55 of first retention device 33 A.
- retention devices 33 A and 33 B When engagement members 56 engage receptacles 55 , retention devices 33 A and 33 B will define a closed form or loop as shown in FIG. 19 . The retention devices 33 A and 33 B may be retained to core 16 as shown in FIG. 16 .
- While the afore written description and figures of the invention show a round tube 15 in a rectangular core 16 , it may also be within the scope of the invention to be applied to a core having an oval tube, square tube, or a tube of another suitable shape to achieve the desired cooling requirements.
- a core having a shape other than a rectangle may also be utilized.
- the retention device may be applied to a circular core, oval core, or a core of another suitable shape to achieve the desired requirements.
- Variation 1 may include a product which may comprise at least one retention device which may comprise: a first member formed as an arch, a second member extending from a first end of the first member and defining a first contact point, a third member extending from a second end of the first member and defining a second contact point, at least one spring member extending from at least one of the first, second, or third members and defining a third contact point, and wherein when the first and second contact points are in contact with a substantially rigid surface, and a force is applied to the third contact point, a force is transmitted to the substantially rigid surface at one or both of the first or second contact points, and wherein the first member will substantially remain in the form of the arch and does not contact to the substantially rigid surface when the force is applied to the third contact point.
- a retention device which may comprise: a first member formed as an arch, a second member extending from a first end of the first member and defining a first contact point, a third member extending from a second end of the first member and
- Variation 2 may include a product as set forth Variation 1 wherein the at least one spring member may comprise at least two spring members wherein the spring members are spaced apart from each other on the retention device.
- Variation 3 may include a product as set forth in any of Variations 1-2 wherein the at least one retention device further comprising interconnecting features comprising a receptacle and an engagement member for engaging said receptacle, and wherein the receptacle and engagement member are spaced apart from each other and when the engagement member engages the receptacle, the retention device defines a closed form or loop for attachment to a product.
- Variation 4 may include a product as set forth in Variation 3 wherein the at least one retention device further comprises a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one of interconnecting feature and, wherein the guide member are constructed and arranged to guide the guide portion.
- Variation 5 may include a product as set forth in Variation 3 wherein the at least one retention device further comprises a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one of said interconnecting features and, wherein the guide member will guide the guide portion.
- Variation 6 may include a product as set forth in Variation 1 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
- Variation 7 may include a product as set forth in Variation 3 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
- Variation 8 may include a product as set forth in Variation 4 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
- Variation 9 may include a product as set forth in any of Variations 5-8 wherein the shape of each retention device is substantially the same.
- Variation 10 may include a product which may comprising a core comprising an array of tubes, a housing for receiving the core and supporting the core, a clearance between the core and the housing, at least one retention device positioned between the housing and core, the at least one retention device may comprise a first member formed as an arch, a second member extending from a first end of the first member and defining a first contact point along the axis of the tubes, a third member extending from a second end of the first member and defining a second contact point along the axis of the tubes, at least one spring member extending from at least one of the first, second, or third members and defining a third contact point with the housing, and wherein when the clearance between the housing and core may cause interference with the retention device and a force is applied to the third contact point of the at least one spring member, the at least one spring member will transmit a force to one or both of the first and second contact points and; wherein the first member may be constructed and arranged to substantially remain in the form of the arch and may not
- Variation 11 may include a product as set forth in Variation 10 wherein the at least one retention device comprising at least two spring members wherein the spring members are spaced apart from each other on the retention device.
- Variation 12 may include a product as set forth in Variation 10 wherein the at least one retention device further comprising interconnecting features comprising a receptacle and an engagement member for engaging said receptacle and, wherein the receptacle and engagement member are spaced apart from each other and when the engagement member engages the receptacle, the retention device defines a closed form or loop for attachment to a product.
- Variation 13 may include a product as set forth in Variation 12 wherein the at least one retention device may further comprising a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one of said interconnecting features and, wherein the guide member is constructed and arranged to guide the guide portion.
- Variation 14 may include a product as set forth in Variation 10 wherein the at least one retention device may further comprising a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one interconnecting feature and, wherein the guide member will guide the guide portion.
- Variation 15 may include a product as set forth in Variation 10 wherein the product may further comprise at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
- Variation 16 may include a product as set forth in claim 12 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
- Variation 17 may include a product as set forth in Variation 16 wherein the shape of each retention device is substantially the same.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A number of variations may include a product comprising a retention device comprising a plurality of members, including an arch member and a spring member defining multiple contact points.
Description
- The field to which the disclosure generally relates to includes retention device.
- Retention devices may be used in a variety of applications.
- A number of variations may include a product comprising a retention device comprising a plurality of members, including an arch member and a spring member defining multiple contact points.
- Other illustrative variations within the scope of the invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while disclosing variations within the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
- Select examples of variations within the scope of the invention will become more fully understood from the detailed description and the accompanying drawings, wherein:
-
FIG. 1 is a schematic illustration of an EGR system in which a number of variations may be utilized. -
FIG. 2 illustrates a heat heater in which a number of variations may be utilized. -
FIG. 3 is an illustration of the heat exchange ofFIG. 2 with the housing removed. -
FIG. 3A is an enlarged view of a portion ofFIG. 3 . -
FIG. 4 is a perspective sectional view of the heat exchange inFIG. 2 . -
FIG. 5 illustrates a baffle which may be utilized in a number of variations. -
FIG. 6 illustrate a product including a heat exchange bundle of tube having a retention device thereon according to a number of variations. -
FIG. 7 is a section illustration of retention device according to a number of variations. -
FIG. 8 is a perspective view of a product including a heat exchange bundle of tube having a retention device thereon according to a number of variations. -
FIG. 9 is a perspective view of a product including a heat exchange bundle of tube having two retention devices thereon according to a number of variations. -
FIG. 10 is a partial perspective view of a first retention device and second retention device have mating fastening and guide features in a connected arrangement according to a number of variations. -
FIG. 11 is a partial perspective view of a first retention device and second retention device have mating fastening and guide features in an unconnected arrangement according to a number of variations. -
FIG. 12 is a perspective sectional view of a heat exchanger having a first retention device and second retention device thereon according to a number of variations. -
FIG. 13 is an enlarged view of a portion ofFIG. 12 . -
FIG. 14 is an enlarged view of a portion ofFIG. 13 . -
FIG. 15 is a perspective view of a heat exchanger having a first retention device and second retention device in unconnected positions and ready for assembly with the heat exchanger according to a number of variations. -
FIG. 16 is a perspective view of a heat exchanger having a first retention device and second retention device in a connected relationship and assembled to the heat exchanger according to a number of variations. -
FIG. 17 is a perspective view of a retention device according to a number of variations. -
FIG. 18 is a perspective view of a first retention device and a first retention device which may have mating locking and/or guide feature and illustrating the direction of movement of the retention devices for assembly according to a number of variations. -
FIG. 19 is a perspective view of a first retention device and a first retention device which may have mating locking and/or guide feature and which may be connected together according to a number of variations. - The following description of the variations is merely illustrative in nature and is in no way intended to limit the scope of the invention, its application, or uses.
- Control of vehicle exhaust emissions and meeting fuel economy standards are mandatory requirements in most countries. Oxides of Nitrogen (NOx) and particulate matter are two components of the engine exhaust emissions that must be controlled.
- Formation of NOx will occur at higher engine combustion temperatures and particulates will form at lower combustion temperatures. A system, referred to as the exhaust gas recirculation (EGR) system, has been developed to control combustion temperatures and control NOx and particulate emissions.
- A schematic of an EGR system is shown in
FIG. 1 . Theengine 1 may have an intake manifold 2 and an exhaust Manifold 3. The EGR system may include an exhaust gas recirculation (EGR)valve 4 that controls the flow of exhaust gas to intake manifold 2. The heat exchanger 5 may be used to reduce the temperature of the exhaust gas.Conduits 6, 7, 8, 9 and 10 may provide the interconnection between the exhaust manifold 3, heat exchanger 5, EGR Valve 4, and Intake manifold 2. The system shown may use an electrically controlled EGR valve. An electronic control unit (ECU) 11 may provide a signal that will control the opening/closing of the valve. As the EGR valve opens and closes it will increase or decrease the flow rate of exhaust gas to the intake manifold. Athrottle valve 12 may be provided to control airflow into the intake manifold. - A portion of the exhaust gas may be recirculated back to the intake manifold where it will be combined with incoming air and fuel. The exhaust gas portion of the mixture does not support combustion and when this mixture is compressed and ignited in the cylinder, the inert exhaust gas will control the combustion temperature and limit the formation of NOx and particulate in the exhaust.
- The temperature of the recirculated exhaust gas may be a factor that determines the effectiveness of the NOx and particulate reduction. It is common for an EGR system to include a heat exchanger to remove heat from the exhaust gas and provide an optimize exhaust gas temperature for controlling emissions.
- One type of
heat exchanger 13 is shown inFIGS. 2 , 3, and 4. It may include a number oftubes 15 in arectangular array 16.Tube 15 may have aninner surface 29,wall 30, andouter surface 25, as shown inFIGS. 3 , 3A View A and 4. Thisrectangular array 16 may also be referred to as the core andexchanger 13 may include one or more cores. Thetubes 15 may be made of a metal such as stainless steel, aluminum or other suitable material. Thecore 16 may includemetal headers tubes 15. Theheaders tubes 15 may be secured and sealed tometal headers - The
core 16 may be placed in ahousing 14 and may be sealed into the housing by agasket 19, O-ring 20 or other suitable means. At one end,header 18 may be attached to acone 21 to transition to the O-ring seal 20.Housing 14,core 16,cone 21,gasket 19, and O-ring 20 may define a sealedspace 22 within thehousing 14. Sealedspace 22 may be suitable for introducing acooling fluid 24 that maycontact tubes 15 in therectangular array 16.Header 17 andgasket 19 may have afirst opening 23 to allow acooling fluid 24 to flow into sealedspace 22.Cooling fluid 24 may contact theouter surface 25 oftubes 15.Header 17 andgasket 19 may also have asecond opening 26 that may allowcooling fluid 24 to exit sealedspace 22. - The heat exchanger shown in
FIGS. 2 , 3, 3A and 4 may function in the following manner. A fluid orgas 27 may entertubes 15 from afirst end 28. For this example, the fluid orgas 27 may be exhaust gas from an internal combustion engine. Theexhaust gas 27 may be at a first temperature, for example 600°C. Exhaust gas 27 may flow throughtubes 15 and may exit at asecond end 29. Coolingfluid 24 may enter sealedspace 22 and may contact theouter surface 25 oftubes 15 as shown inFIG. 3 . Coolingfluid 24 may be at a lower temperature thanexhaust gas 27, for example 100° C. - As the
exhaust gas 27 flows throughtubes 15 it may transfer some of its heat to theinner surface 29,wall 30, andouter surface 25 oftubes 15. The transfer of heat may continue as the gas flows along the length oftubes 15 and theexhaust gas 27 may become progressively cooler. A portion of the heat transferred toinner surface 29,wall 30, andouter surface 25, oftubes 15, may then transfer to coolingfluid 24, contacting theouter wall 25 oftubes 15, in sealedspace 22. Transferring heat fromexhaust gas 27, totubes 15, and tofluid 24, in sealedspace 22, may have two effects as described in the following paragraphs. - The first effect may be the
exhaust gas 27 exitingtubes 15 atsecond end 29 may be at a lower temperature than theexhaust gas 27 enteringtubes 15 at thefirst end 28. Forexample exhaust gas 27 enteringtubes 15, atfirst end 28, may be at 600° C. and theexhaust gas 27 exitingtubes 15, atsecond end 29, may be at 200° C. The reduction in temperature may, in part, be due to the transfer of heat fromexhaust gas 27, totubes 15, and to coolingfluid 24 in sealedspace 22. - The second effect may be the cooling
fluid 24 exiting sealedspace 22 atsecond opening 26 may be at a higher temperature than the coolingfluid 24 entering sealedspace 22 at thefirst opening 23. For example the coolingfluid 24 exiting sealedspace 22, atsecond opening 26, may be at 110° C. and the coolingfluid 24 entering sealedspace 22, atfirst opening 23 may be at 100° C. The increase in temperature may, in part, be due to the transfer of heat fromexhaust gas 27, totubes 15, and to coolingfluid 24 in sealedspace 22. - Both first and second effects may be influenced in-part by parameters such as; the temperature of
exhaust gas 27 enteringtubes 15, the flow rate ofexhaust gas 27, the materials oftubes 15, the wall thickness oftube 15, the length oftube 15, the surface area oftube 15, the fluid properties of the coolingfluid 24 in sealedspace 22, the flow rate of the coolingfluid 24 in sealedspace 22, or other parameters. - As the cooling requirements for the heat exchanger increase, it may be necessary to increase the number of
tubes 15 or increase the length of thetubes 15. The longer tubes may require additional support. Abaffle 31 shown inFIGS. 4 and 5 may be located along the length oftubes 15. Thebaffle 31 may be a metal plate withmultiple openings 32 that will receive andsupport tubes 15.Baffle 31 may add support but it may not be sufficient with high levels of vibration that may cause movement of thetubes 15 and the potential for fatigue of the tubes, the brazing joints, or other components. - The addition of a retention device may help to prevent the potential for movement and damage.
FIG. 6 shows a partial assembly ofheat exchanger 13 with aretention device 33 installed oncore 16.Retention device 33 may include at least onespring member 34.FIG. 7 shows a portion ofretention device 33 andspring member 34 viewed in the direction ofarrow 44.Retention device 33 may include a firstarch member 35 and asecond member 36 extending from afirst end 37 of firstarch member 35. There may be aradius 38 at the transition between firstarch member 35 andsecond member 36 that may define afirst contact point 39. There may be athird member 40 extending from asecond end 41 of firstarch member 35. There may also be aradius 42 at the transition between firstarch member 35 andthird member 40 that may define asecond contact point 43.Spring member 34 may extend fromthird member 40 and may define athird contact point 45 along the length ofspring member 34.Spring member 34 may include acurved section 46 which may include thethird contact point 45 as shown inFIG. 7 . - Referring to
FIG. 7 ,retention device 33 may function in the following manner. When thefirst contact point 39 andsecond contact point 43 are in contact with a substantiallyrigid surface 47 and a force, represented asarrow 48, is applied tothird contact point 45,spring member 34 may deflect in direction 49 and transmit a force to the substantially rigid surface atfirst contact point 39 andsecond contact point 43. Whileforce 48 is applied, firstarch member 35 will remain substantially in the form of the arch and only thefirst contact point 39 andsecond contact point 43 will substantially contactrigid surface 47. The arch form of firstarch member 35 and the minimum contact withrigid surface 47 may allow a less impeded movement of theretention device 33 along substantiallyrigid surface 47. The deflection ofspring member 34, in direction 49, is shown as dashedline form 34A, inFIG. 7 . - Referring to
FIG. 8 ,spring member 34, may extend along anaxis 50 for alength 51. Thelength 51 may be 5 mm, 10 mm, or other suitable length to achieve the desired retention requirements. There may be an interruptedlength 52 alongaxis 50 followed by asecond spring member 34B having alength 53 alongaxis 50.Second spring member 34B may have the same length asfirst spring member 34 or it may have another length to achieve the desired retention requirements. Thespring retention device 33 may be manufactured in many shapes to fit the shape of a core. For example it may be manufactured in rectangular shape to fit a rectangular core, a circular shape to fit a circular core, or other shape to suitably fit a core. -
FIG. 9 showsretention device 33 installed onrectangular core 16 ofheat exchanger 13.Retention device 33 has been formed in a rectangular shape to fit the shape ofcore 16. Theretention device 33 may be attached and retained tocore 16 by interconnectingfeatures 54 which may include areceptacle 55 and anengagement member 56 as seen inFIG. 10 View B andFIG. 11 . Whenengagement member 56 engagesreceptacle 55,retention device 33 will define a closed form or loop and may be retained tocore 16 as shown inFIG. 9 . -
FIG. 12 ,FIG. 13 View C, andFIG. 14 view Dshow retention device 33 installed oncore 16.Retention device 33 may be assembled tocore 16 prior to installingcore 16 intohousing 14.Core 16 along withretention devices 33 may be slid intohousing 14 untilcore 16 comes into sealing contact withhousing 14.Retention device 33 may engagehousing 14 withinspace 22. Adistance 57, betweentubes 15 and aninside wall 58 ofhousing 14 may be less than a distance 59 between contact points 39, 43, and 45 onspring member 34 ofretention device 33. It may be noted thatdistance 57 may be similar for each of the four inside walls ofhousing 14 that confronttubes 15 ofcore 16. Sincedimension 57 may be less than dimension 59, there may be aninterference dimension 60 that that is substantially the difference between dimension 59 anddimension 57. For example, in one variation theinterference dimension 60 may be substantially 1 mm when dimension 59 is 7 mm anddimension 57 is 6 mm.Dimension 60 may vary with the tolerance of the components. - In a number of variations,
interference dimension 60 may be 1 mm, 2 mm, or other dimension that will provide the desired level of retention. The selection ofinterference dimension 60 may in-part be based upon the level of vibration, level of mechanical shock, or other relevant parameter. - Referring to
FIG. 14 view D, ascore 16 is slid intohousing 14, the contact withinside wall 58 andinterference 60 may provide aforce 73 onthird contact point 45 and deflectspring member 34 indirection 62.Force 73 may causefirst contact point 39 andsecond contact point 43, ofretention device 33, to contacttubes 15 and transmit a force to the tubes.Tubes 15 may form a substantially rigid surface, forfirst contact point 39 andsecond contact point 43. Whenforce 73 is applied to thethird contact point 45 andspring member 34 deflects indirection 62, firstarch member 35 will substantially remain in the form of the arch and only thefirst contact point 39 andsecond contact point 43 may substantially contacttubes 15. The deflectedposition 34A ofspring member 34, indirection 62, is shown as a solid line inFIG. 14 View D. The initial position ofspring member 34 is shown as dashed lines. The arched form of firstarch member 35 and the minimum contact with the rigid surface oftubes 15, may allow a less impeded movement ofretention device 33 along the surface oftubes 15. It may also be possible that only one of the first or second contact points, 39 or 43, may contact the rigid surface oftubes 15. This may be in-part result from dimensional differences of components, assembly variation, or other factors. -
Retention device 33 may extend along the four sides of therectangular core 16 and may include additional portions ofspring member 34.Retention device 33 may contact four inside surfaces ofrectangular housing 14. Additional portions ofspring member 34 may provide a force ontubes 15 at each location that may tend to prevent movement of thetubes 15 andcore 16 when a force is applied to theheat exchanger 13. The force may be applied in any direction toheat exchanger 13 and may result from an impact, vibration, or other force. Preventing or limiting movement oftubes 15 andcore 16 may lessen the potential for fatigue and failure oftube 15, brazing joints, or other component. - Referring again to
FIGS. 9 , 10 View B, and 11, in a number of variations it may be advantageous to include aguide feature 61 to guide interconnecting features 54 and aid with the assembly ofretention device 33 tocore 16. In a number of variations guidefeature 61 may include twoguide members retention device 33.Guide feature 61 may be designed to receive aguide portion 64 ofretention device 33 that may includereceptacle 55 orengagement feature 56. For example, guideportion 64 may includereceptacle 55 as shown inFIGS. 10 View B and 11.Guide feature 61, includingguide members guide portion 64,receptacle 55,engagement feature 56, and facilitate engagement thereof as shown inFIGS. 9 and 10 View B. - As previously stated,
guide feature 61 may include afirst guide members 62 andsecond guide member 63 that may retainguide portion 64 and may prevent disengagement. An existing portion ofretention device 33 may be used as a guide member. For example,guide member 63 may be a portion of the firstarch member 35,second member 40, orspring member 34 as shown inFIG. 11 . A guide member may also be formed as a separate portion ofretention device 33 such asguide member 62 also shown inFIGS. 10 View B and 11. - Installing a one-piece retention device may require deformation to assemble it to the core. In a number of variations, to efficiently install the retention device it may be made in two pieces as shown in
FIG. 15 . The 2-piece design may include afirst retention device 33A andsecond retention device 33B. The 2-piece design will allow installation after assembly ofcore 16, includingtubes 15,header 17,header 18, andbaffle 31. The retention devices are shown assembled tocore 16 inFIG. 16 . -
FIG. 17 showsfirst retention device 33A.Retention device 33A may have afirst member 65,second member 66, andthird member 67 formed to fitrectangular core 16. Each of the first, second, and third members may have aspring members 34 spaced along each member.Retention device 33A may have interconnectingfeature 54 comprisingreceptacle 55 andengagement member 56 as previously described herein.Receptacle 55 may be located at afirst end 68 ofretention device 33A andengagement member 56 may be located atsecond end 70.Retention device 33A may also includeguide feature 61 andguide portion 64 also preciously described herein.Guide feature 61 andguide portion 64 may be located at the first or second ends 68 and 70 ofretention device 33A. For example, guidefeature 61 may be located at thesecond end 70 andguide portion 64 may be located at thefirst end 68 as shown inFIG. 17 .Guide portion 64 may also includereceptacle 55 also shown inFIG. 17 . -
First retention device 33A andsecond retention device 33B may be substantially identical in form and may be made from the same manufacturing process. This may reduce cost, reduce tooling requirements, improve assembly, or provide other advantages. -
First retention device 33A andsecond retention device 33B may be assembled to the core by rotating one of the first or second retention devices 180° aboutaxis 69 and aligning them as shown inFIGS. 18 and 19 .Guide feature 61 located atsecond end 70 offirst retention device 33A may align and receiveguide portion 64 located atfirst end 68 ofsecond retention device 33B.Guide feature 61 located atsecond end 70 ofsecond retention device 33B may align and receiveguide portion 64 located atfirst end 68 offirst retention device 33A. The continued engagement of first andsecond retention devices arrows engagement feature 56, offirst retention device 33A, to engagereceptacle 55 ofsecond retention device 33B. Continued engagement may also causeengagement feature 56 ofsecond retention device 33B to engagereceptacle 55 offirst retention device 33A. - When
engagement members 56 engagereceptacles 55,retention devices FIG. 19 . Theretention devices core 16 as shown inFIG. 16 . - While the afore written description and figures of the invention show a
round tube 15 in arectangular core 16, it may also be within the scope of the invention to be applied to a core having an oval tube, square tube, or a tube of another suitable shape to achieve the desired cooling requirements. A core having a shape other than a rectangle may also be utilized. For example, the retention device may be applied to a circular core, oval core, or a core of another suitable shape to achieve the desired requirements. - The following description of variants is only illustrative of components, elements, acts, product and methods considered to be within the scope of the invention and are not in any way intended to limit such scope by what is specifically disclosed or not expressly set forth. The components, elements, acts, product and methods as described herein may be combined and rearranged other than as expressly described herein and still are considered to be within the scope of the invention.
-
Variation 1 may include a product which may comprise at least one retention device which may comprise: a first member formed as an arch, a second member extending from a first end of the first member and defining a first contact point, a third member extending from a second end of the first member and defining a second contact point, at least one spring member extending from at least one of the first, second, or third members and defining a third contact point, and wherein when the first and second contact points are in contact with a substantially rigid surface, and a force is applied to the third contact point, a force is transmitted to the substantially rigid surface at one or both of the first or second contact points, and wherein the first member will substantially remain in the form of the arch and does not contact to the substantially rigid surface when the force is applied to the third contact point. - Variation 2 may include a product as set forth
Variation 1 wherein the at least one spring member may comprise at least two spring members wherein the spring members are spaced apart from each other on the retention device. - Variation 3 may include a product as set forth in any of Variations 1-2 wherein the at least one retention device further comprising interconnecting features comprising a receptacle and an engagement member for engaging said receptacle, and wherein the receptacle and engagement member are spaced apart from each other and when the engagement member engages the receptacle, the retention device defines a closed form or loop for attachment to a product.
-
Variation 4 may include a product as set forth in Variation 3 wherein the at least one retention device further comprises a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one of interconnecting feature and, wherein the guide member are constructed and arranged to guide the guide portion. - Variation 5 may include a product as set forth in Variation 3 wherein the at least one retention device further comprises a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one of said interconnecting features and, wherein the guide member will guide the guide portion.
- Variation 6 may include a product as set forth in
Variation 1 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device. - Variation 7 may include a product as set forth in Variation 3 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
- Variation 8 may include a product as set forth in
Variation 4 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device. - Variation 9 may include a product as set forth in any of Variations 5-8 wherein the shape of each retention device is substantially the same.
-
Variation 10 may include a product which may comprising a core comprising an array of tubes, a housing for receiving the core and supporting the core, a clearance between the core and the housing, at least one retention device positioned between the housing and core, the at least one retention device may comprise a first member formed as an arch, a second member extending from a first end of the first member and defining a first contact point along the axis of the tubes, a third member extending from a second end of the first member and defining a second contact point along the axis of the tubes, at least one spring member extending from at least one of the first, second, or third members and defining a third contact point with the housing, and wherein when the clearance between the housing and core may cause interference with the retention device and a force is applied to the third contact point of the at least one spring member, the at least one spring member will transmit a force to one or both of the first and second contact points and; wherein the first member may be constructed and arranged to substantially remain in the form of the arch and may not contact along the axis of the tubes when the force is applied to the third contact point. -
Variation 11 may include a product as set forth inVariation 10 wherein the at least one retention device comprising at least two spring members wherein the spring members are spaced apart from each other on the retention device. -
Variation 12 may include a product as set forth inVariation 10 wherein the at least one retention device further comprising interconnecting features comprising a receptacle and an engagement member for engaging said receptacle and, wherein the receptacle and engagement member are spaced apart from each other and when the engagement member engages the receptacle, the retention device defines a closed form or loop for attachment to a product. -
Variation 13 may include a product as set forth inVariation 12 wherein the at least one retention device may further comprising a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one of said interconnecting features and, wherein the guide member is constructed and arranged to guide the guide portion. -
Variation 14 may include a product as set forth inVariation 10 wherein the at least one retention device may further comprising a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one interconnecting feature and, wherein the guide member will guide the guide portion. -
Variation 15 may include a product as set forth inVariation 10 wherein the product may further comprise at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device. -
Variation 16 may include a product as set forth inclaim 12 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device, and a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device. -
Variation 17 may include a product as set forth inVariation 16 wherein the shape of each retention device is substantially the same. - The above description of select variations within the scope of the invention is merely illustrative in nature and, thus, variations or variants thereof are not to be regarded as a departure from the spirit and scope of the invention.
Claims (27)
1. A product comprising at least one retention device comprising;
a first member formed as an arch,
a second member extending from a first end of the first member and defining a first contact point,
a third member extending from a second end of the first member and defining a second contact point,
at least one spring member extending from at least one of the first, second, or third members and defining a third contact point, and
wherein when the first and second contact points are in contact with a substantially rigid surface of an exhaust gas recirculation tube, and a force is applied to the third contact point, a force is transmitted to the substantially rigid surface at one or both of the first or second contact points, and
wherein the first member will substantially remain in the form of the arch and does not contact the substantially rigid surface when the force is applied to the third contact point.
2. A product as set forth claim 1 wherein the at least one retention device comprises at least two spring members wherein the spring members are spaced apart from each other on the retention device.
3. A product as set forth in claim 1 wherein the at least one retention device further comprises interconnecting features comprising a receptacle and an engagement member for engaging said receptacle, and wherein the receptacle and engagement member are spaced apart from each other and when the engagement member engages the receptacle, the retention device defines a closed form or loop for attachment to a product.
4. A product as set forth in claim 3 wherein the at least one retention device further comprises a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one interconnecting feature, and wherein the guide member is constructed and arranged to guide the guide portion.
5. A product as set forth in claim 1 wherein the at least one retention device further comprises a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one interconnecting features, and wherein the guide member is constructed and arranged to guide the guide portion.
6. A product as set forth in claim 1 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising
a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device and,
a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
7. A product as set forth in claim 3 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising
a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device and,
a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
8. A product as set forth in claim 4 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising
a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device and,
a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
9. A product as set forth in claim 6 wherein the shape of each retention device is substantially the same.
10. A product comprising;
a core comprising an array of tubes,
a housing for receiving the core and supporting the core,
a clearance between the core and the housing,
at least one retention device positioned between the housing and core, the at least one retention device comprising;
a first member formed as an arch,
a second member extending from a first end of the first member and defining a first contact point along the axis of the tubes,
a third member extending from a second end of the first member and defining a second contact point along the axis of the tubes,
at least one spring member extending from at least one of the first, second, or third members and defining a third contact point with the housing, and
wherein when the clearance between the housing and core causes interference with the retention device and a force is applied to the third contact point of the at least one spring member, the at least one spring member will transmit a force to one or both of the first and second contact points and;
wherein the first member will substantially remain in the form of the arch and does not contact the tubes along the axis of the tubes when the force is applied to the third contact point.
11. A product as set forth claim 10 wherein the at least one retention device comprising at least two spring members wherein the spring members are spaced apart from each other on the retention device.
12. A product as set forth in claim 10 wherein the at least one retention device further comprising interconnecting features comprising a receptacle and an engagement member for engaging said receptacle and, wherein the receptacle and engagement member are spaced apart from each other and when the engagement member engages the receptacle, the retention device defines a closed form or loop for attachment to a product.
13. A product as set forth in claim 12 wherein the at least one retention device further comprising a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one of said interconnecting features and, wherein the guide member is constructed and arranged to guide the guide portion.
14. A product as set forth in claim 10 wherein the at least one retention device further comprising a guide feature and a guide portion said guide feature comprising at least one guide member and said guide portion including at least one interconnecting feature and, wherein the guide member will guide the guide portion.
15. A product as set forth in claim 10 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising
a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device and,
a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
16. A product as set forth in claim 12 wherein the product further comprising at least a second retention device, said first and second retention devices further comprising
a guide feature on the first retention device constructed and arranged to guide a guide portion on the second retention device and,
a guide feature on the second retention device constructed and arranged to guide a guide portion on the first retention device.
17. A product as set forth in claim 16 wherein the shape of each retention device is substantially the same.
18. A product as set forth in claim 1 wherein the first and second contact points are constructed and arranged to provide movement of the retention device along the substantially rigid surface.
19. A product as set forth in claim 10 wherein the first and second contact points are constructed and arranged to provide movement of the retention device along a substantially rigid surface of the tube.
20. A product comprising;
a core comprising an array of tubes,
a housing for receiving the core and supporting the core,
a clearance between the core and the housing,
at least one retention device positioned between the housing and core, the at least one retention device comprising;
a first member formed as an arch,
a second member extending from a first end of the first member and defining a first contact point along the axis of the tubes,
a third member extending from a second end of the first member and defining a second contact point along the axis of the tubes,
at least one spring member extending from at least one of the first, second, or third members and defining a third contact point with the housing, and
wherein when the clearance between the housing and core causes interference with the retention device and a force is applied to the third contact point of the at least one spring member, the at least one spring member will transmit a force to one or both of the first and second contact points and;
wherein the first member will substantially remain in the form of the arch and does not contact the tubes along the longitudinal axis of the tubes when the force is applied to the third contact point the retention device being constructed and arranged to move along the longitudinal axis of the tubes.
21. A product comprising;
a core comprising an array of tubes,
a housing for receiving the core and supporting the core,
a clearance between the core and the housing,
at least one retention device positioned between the housing and core, the at least one retention device comprising;
a first member formed as an arch,
a second member extending from a first end of the first member and defining a first contact point along the axis of the tubes,
a third member extending from a second end of the first member and defining a second contact point along the axis of the tubes,
at least one spring member extending from at least one of the first, second, or third members and defining a third contact point with the housing, and
wherein when the clearance between the housing and core causes interference with the retention device and a force is applied to the third contact point of the at least one spring member, the at least one spring member will transmit a force to one or both of the first and second contact points and;
wherein the first member will substantially remain in the form of the arch and does not contact the tubes along the longitudinal axis of the tubes when the force is applied to the third contact point the retention device being constructed and arranged to provide less impeded movement of the retention device along a substantially rigid surface of the tubes.
22. A product as set forth in claim 1 with the proviso that the retention device does not include an anchor for attaching to a heat exchanger baffle or linking part.
23. A product comprising at least one retention device comprising;
a first member formed as an arch,
a second member extending from a first end of the first member and defining a first contact point,
a third member extending from a second end of the first member and defining a second contact point,
a first spring member and a second spring member extending from the third member, each of the first spring member and the second spring member defining a respective third contact point, the first spring member and the second spring member being spaced apart from each other
wherein when the first and second contact points are in contact with a substantially rigid surface, and a force is applied to the third contact point, a force is transmitted to the substantially rigid surface at one or both of the first or second contact points, and
wherein the first member will substantially remain in the form of the arch and does not contact the substantially rigid surface when the force is applied to the third contact point, and wherein the second member extends a distance traversing the first spring member and the second spring member.
24. A product as set forth in claim 23 wherein the second member is substantially planar and has a terminal edge position below the third contact point of each of the first spring member and the second spring member.
25. A product as set forth in claim 23 further comprising a bundle of tube having four sides and wherein the retention devices contact the bundle of tube on three of the four sides.
26. A product as set forth in claim 1 wherein the first and second contact points are constructed and arranged to provide minimum contact with the substantially rigid surface and thereby less impeded movement of the retention device along the substantially rigid surface.
27. A product as set forth in claim 10 wherein the first and second contact points are constructed and arranged to provide minimum contact with the substantially rigid surface and thereby less impeded movement of the retention device along a substantially rigid surface of the tube.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/215,740 US20150260465A1 (en) | 2014-03-17 | 2014-03-17 | Retention device for a product |
KR1020150029959A KR20150108311A (en) | 2014-03-17 | 2015-03-03 | Retention device for a product |
CN201510098067.8A CN104929815A (en) | 2014-03-17 | 2015-03-05 | Retention device for a product |
EP15157913.3A EP2933596B1 (en) | 2014-03-17 | 2015-03-06 | Retention device for a heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/215,740 US20150260465A1 (en) | 2014-03-17 | 2014-03-17 | Retention device for a product |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150260465A1 true US20150260465A1 (en) | 2015-09-17 |
Family
ID=52630245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/215,740 Abandoned US20150260465A1 (en) | 2014-03-17 | 2014-03-17 | Retention device for a product |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150260465A1 (en) |
EP (1) | EP2933596B1 (en) |
KR (1) | KR20150108311A (en) |
CN (1) | CN104929815A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11131514B2 (en) * | 2016-08-03 | 2021-09-28 | Hangzhou Sanhua Research Institute Co., Ltd. | Heat exchange device |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2809004A (en) * | 1954-10-06 | 1957-10-08 | Kaufman Joseph | Holders for electronic components |
US4789145A (en) * | 1986-12-30 | 1988-12-06 | Ingersoll-Rand Company | Vane spring for air motor |
US4897021A (en) * | 1988-06-02 | 1990-01-30 | United Technologies Corporation | Stator vane asssembly for an axial flow rotary machine |
US5931514A (en) * | 1996-11-21 | 1999-08-03 | U.S. Philips Corporation | Detachable connection between two housing sections |
US7291946B2 (en) * | 2003-01-27 | 2007-11-06 | United Technologies Corporation | Damper for stator assembly |
US20100027613A1 (en) * | 2008-07-31 | 2010-02-04 | Jeffrey Walter Zimmerman | Adaptive language descriptors |
US20100276131A1 (en) * | 2007-09-11 | 2010-11-04 | Barwig Juergen | Heat exchanger, particularly for a motor vehicle |
US8033323B2 (en) * | 2006-06-22 | 2011-10-11 | Modine Manufacturing Company | Heat exchanger |
WO2012152860A1 (en) * | 2011-05-11 | 2012-11-15 | Borgwarner Emissions Systems Spain, S.L. | Device for reducing the vibrations of a tube bundle of a heat exchanger inside its shell |
US8387684B2 (en) * | 2007-07-11 | 2013-03-05 | Visteon Global Technologies, Inc. | Exhaust gas heat exchanger with an oscillationattenuated bundle of exchanger tubes |
US8920112B2 (en) * | 2012-01-05 | 2014-12-30 | United Technologies Corporation | Stator vane spring damper |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1338479A (en) * | 1918-04-03 | 1920-04-27 | Schutte & Koerting Co | Heat-transfer apparatus |
-
2014
- 2014-03-17 US US14/215,740 patent/US20150260465A1/en not_active Abandoned
-
2015
- 2015-03-03 KR KR1020150029959A patent/KR20150108311A/en unknown
- 2015-03-05 CN CN201510098067.8A patent/CN104929815A/en active Pending
- 2015-03-06 EP EP15157913.3A patent/EP2933596B1/en not_active Not-in-force
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2809004A (en) * | 1954-10-06 | 1957-10-08 | Kaufman Joseph | Holders for electronic components |
US4789145A (en) * | 1986-12-30 | 1988-12-06 | Ingersoll-Rand Company | Vane spring for air motor |
US4897021A (en) * | 1988-06-02 | 1990-01-30 | United Technologies Corporation | Stator vane asssembly for an axial flow rotary machine |
US5931514A (en) * | 1996-11-21 | 1999-08-03 | U.S. Philips Corporation | Detachable connection between two housing sections |
US7291946B2 (en) * | 2003-01-27 | 2007-11-06 | United Technologies Corporation | Damper for stator assembly |
US8033323B2 (en) * | 2006-06-22 | 2011-10-11 | Modine Manufacturing Company | Heat exchanger |
US8387684B2 (en) * | 2007-07-11 | 2013-03-05 | Visteon Global Technologies, Inc. | Exhaust gas heat exchanger with an oscillationattenuated bundle of exchanger tubes |
US20100276131A1 (en) * | 2007-09-11 | 2010-11-04 | Barwig Juergen | Heat exchanger, particularly for a motor vehicle |
US20100027613A1 (en) * | 2008-07-31 | 2010-02-04 | Jeffrey Walter Zimmerman | Adaptive language descriptors |
WO2012152860A1 (en) * | 2011-05-11 | 2012-11-15 | Borgwarner Emissions Systems Spain, S.L. | Device for reducing the vibrations of a tube bundle of a heat exchanger inside its shell |
US8920112B2 (en) * | 2012-01-05 | 2014-12-30 | United Technologies Corporation | Stator vane spring damper |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11131514B2 (en) * | 2016-08-03 | 2021-09-28 | Hangzhou Sanhua Research Institute Co., Ltd. | Heat exchange device |
Also Published As
Publication number | Publication date |
---|---|
KR20150108311A (en) | 2015-09-25 |
EP2933596B1 (en) | 2017-06-14 |
EP2933596A1 (en) | 2015-10-21 |
CN104929815A (en) | 2015-09-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9933216B2 (en) | Heat exchanger | |
US9982589B2 (en) | Intake manifold with an intercooler | |
US10012135B2 (en) | Air-guiding component with an intercooler | |
CN101568790B (en) | Heat exchanger with bypass | |
US20080011456A1 (en) | Heat exchanger having integral elastic regions | |
EP1996891B1 (en) | Heat exchanger for egr-gas | |
CN104755740A (en) | Improved exhaust gas recirculation apparatus and method for forming same | |
EP1161318A1 (en) | Welded heat exchanger with grommet construction | |
US20170370329A1 (en) | Vehicular egr cooler | |
KR100814073B1 (en) | Plastic type egr cooler | |
EP2336539A2 (en) | Exhaust gas cooler and exhaust gas recirculation system for internal combustion engine | |
US11067040B2 (en) | Exhaust gas cooling apparatus | |
EP2933596B1 (en) | Retention device for a heat exchanger | |
KR20170048022A (en) | EGR cooler for vehicle | |
US9062634B1 (en) | EGR cooler | |
US20150021004A1 (en) | EGR Cooler | |
KR101839494B1 (en) | EGR cooler with protrusion for supporting body shell | |
CN107949686B (en) | Exhaust manifold sliding joint with protrusions | |
KR102123452B1 (en) | EGR cooler for Motor Vehicle | |
US20130340980A1 (en) | Improvements in or relating to gas coolers for internal combustion engines | |
US11306982B2 (en) | Heat exchanger, air intake system with a heat exchanger, and method for mounting a heat exchanger | |
KR20170037003A (en) | EGR cooler for vehicle | |
RU2701740C1 (en) | Cylinder head with features to limit exhaust manifold compression | |
CN216044089U (en) | Gas pipe fixing structure of automobile EGR cooler | |
KR20170118469A (en) | EGR cooler for vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BORGWARNER INC., MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BUSATO, MURRAY F.;ADHVARYU, KETAN;WEISSINGER, PETE;SIGNING DATES FROM 20140414 TO 20140507;REEL/FRAME:033059/0169 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |