Metal gasket for an internal transmission oil cooler
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- HANON SYST CO LTD
- Filing Date
- 2018-08-22
- Publication Date
- 2026-07-30
AI Technical Summary
Existing seal assemblies in automotive cooling systems suffer from component rotation, leading to O-ring wear and failure, and elastomeric seals are prone to contamination and manufacturing issues, compromising the seal's effectiveness.
A seal assembly with a dual-sealing structure and interlocking design, featuring a first and second sealing section, along with sealing beads and a lever feature, prevents rotation and enhances sealing by compressing the components securely.
The improved seal assembly provides enhanced sealing and resistance to rotation, preventing O-ring wear and contamination, ensuring a durable and effective seal over prolonged use.
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Abstract
Description
AREA OF INVENTION
[0001] The invention generally relates to a device for connecting fluid lines, in particular a device for connecting high-pressure fluid lines in a cooling system of a motor vehicle. BACKGROUND OF THE INVENTION
[0002] A motor vehicle's radiator typically features a pair of distribution tanks in fluid communication with several heat exchanger tubes extending between them. A coolant flows through the distribution tanks and heat exchanger tubes to transfer thermal energy between itself and a second fluid, such as an airflow. An additional heat transfer device may be located in one of the distribution tanks to transfer thermal energy between the coolant and a third fluid. This additional heat transfer device could, for example, be a transmission oil cooler (TOC), designed to transfer thermal energy between the coolant flowing in the distribution tanks and the motor vehicle's transmission oil.
[0003] Fig. Figure 1 represents an embodiment of a sealing arrangement 1This represents a state-of-the-art design for use with a motor vehicle cooler or radiator. The sealing arrangement 1 features an internal heat exchanger housing 2 on, which acts as TOC, arranged within an outer housing wall 3 a distributor tank for the radiator. An adapter 4 , arranged within the distribution tank, has a first end that connects to the internal heat exchanger housing 2 securely coupled, and a second end extending through an opening in the outer housing wall. 3 The opening is formed. An operation 6 features a threaded section designed to engage with a threaded section of the adapter 4 to cooperate. By deploying 6 into the adapter 4 When screwed in, an O-ring is used. 7 between the adapter 4 and the use 6 compressed while a seal 8between the adapter 4 and the outer casing wall 3 is compressed, whereby both the O-ring 7 as well as the seal 8 is made of an elastomer material. The sealing arrangement 1 can add another O-ring 9 exhibiting a section of the deployment 6 , externally assigned with respect to the outer casing wall 3 , a fluid coupling 11 and a connecting tube 13 , which are involved in the operation 6 and the fluid coupling 11 is included, is planned. The fluid coupling 11 and the connecting tube 13 can be set up to facilitate deployment 6 to couple fluidically with a fluid source that is set up to create a circulation through the internal heat exchanger housing 2 to realize.
[0004] The adapter 4 , the deployment 6 and the O-ring7 the sealing arrangement 1 According to the state of the art, they have a disadvantage in that, after assembly and during prolonged use, they shift both relative to each other and to the outer housing wall. 3 They can rotate. Such a rotation can cause the O-ring to... 9 with the deployment 6 , the fluid coupling 11 or the connecting pipe 13 comes into frictional contact, causing the O-ring to... 9 is subject to potential wear that may impair the effectiveness of the seal formed by the O-ring 9 , could be affected. Furthermore, a rotation of the insert could 6 relative to the adapter 4 cause the deployment 6 partially from the adapter 4 This releases the seal formed by the interaction of the adapter. 4 , of the deployment 6 , of the O-ring 7 , of the O-ring 9, the fluid coupling 11 and the connecting tube 13 , possibly weakened further. Resolving the operation 6 from the adapter 4 can also cause the O-ring to 7 with the adapter 4 or the use 6 comes into frictional contact, thus creating a potential source of wear for the O-ring. 7 This results in the effectiveness of the seal, formed by the O-ring. 7 , could have an impact.
[0005] Another problem that arises with the sealing arrangement 1 The state of the art concerns the use of elastomer seals, such as O-rings. 7 , 9 , which are between the adapter 4 and the use 6 , as well as between the deployment 6 , the fluid coupling 11 and the connecting tube 13are arranged in a manner that makes such elastomer seals generally susceptible to contamination as well as manufacturing and assembly problems. For example, the elastomer seals can be pinched or squeezed, torn, or extruded unevenly, which promotes the formation of irregularities that can cause fluid to bypass the elastomer seals.
[0006] It would therefore be desirable to design a sealing arrangement with improved sealing properties that further prevents unintentional rotation of the components forming the sealing arrangement. SUMMARY OF THE INVENTION
[0007] In connection with the present invention, an improved sealing arrangement was developed which has improved sealing and improved resistance to rotation.
[0008] According to one embodiment of the invention, a sealing arrangement for use with a housing wall in which an opening is formed comprises a first block having a first opening, a second opening, and a first annular sealing surface surrounding the first opening. A second block has a third opening and a fourth opening, wherein a surface of the second block defining the fourth opening has a first threaded section. An insert has a fifth opening, a second annular sealing surface, and a second threaded section. A first sealing structure is arranged between the first annular sealing surface and the second annular sealing surface and is configured for compression between them.An adapter has a sixth opening, wherein a surface of the adapter defining the sixth opening has a third threaded section configured to engage with the second threaded section of the insert. A second sealing structure is arranged between the insert and the adapter and is configured to compress between them. A fastener is received in the second opening of the first block and the fourth opening of the second block, wherein the fastener has a fourth threaded section configured to engage with the first threaded section of the second block.
[0009] According to a further embodiment of the invention, a heat exchanger arrangement comprises: a heat exchanger tank configured to hold a first fluid and having an outer housing wall in which an opening is formed and a positioning feature projecting from it; an internal heat exchanger housing arranged within the heat exchanger tank and configured to hold a second fluid fluid in fluid isolation from the first fluid; and a sealing arrangement. The sealing arrangement comprises a first block having a first opening, a second opening, and a first annular sealing surface surrounding the first opening. A second block has a third opening and a fourth opening, wherein a surface of the second block defining the fourth opening has a first threaded section.An insert has a fifth opening, a second annular sealing surface, and a second threaded section. A first sealing structure is arranged between the first annular sealing surface and the second annular sealing surface and is configured to compress between them. An adapter has a sixth surface, wherein a surface of the adapter defining the sixth opening has a third threaded section configured to engage with the second threaded section of the insert. A second sealing structure is arranged between the insert and the adapter and is configured to compress between them.A fastening element is received in the second opening of the first block and the fourth opening of the second block, the fastening element having a fourth threaded section configured to engage with the first threaded section of the second block. List of characters
[0010] The above-mentioned tasks and further advantages of the invention will become apparent to the person skilled in the art from reading the following detailed description of a preferred embodiment of the invention, taking into account the accompanying drawings. Fig. Figure 1 is a partial cross-sectional view of a sealing arrangement according to the state of the art; Fig. 2 is an expanded perspective view of a sealing arrangement according to an embodiment of the invention; Fig. Figure 3 is a partial cross-sectional view of the sealing arrangement of the Fig. 2; Fig. Figure 4 is a top view of an insert of the sealing arrangement of the Fig. 2; Fig. 5 to Fig. Figure 10 shows different configurations of a sealing bead of the sealing arrangement. Fig. 2 to Fig. 4 in cross-section; Fig. 11 is a partial cross-sectional view of a sealing arrangement according to a further embodiment of the invention; Fig. Figure 12 is a partial cross-sectional view of a sealing arrangement according to a further embodiment of the invention; Fig. Figure 13 is an enlarged partial cross-sectional view of the sealing arrangement of the Fig. 12, which is in a first configuration; Fig. Figure 14 is an enlarged partial cross-sectional view of the sealing arrangement of the Fig. 12, which is in a second configuration; Fig. Figure 15 is a partial cross-sectional view of a sealing arrangement according to a further embodiment of the invention; Fig. Figure 16 is an enlarged partial cross-sectional view of the sealing arrangement of the Fig. 15, wherein this is in a first configuration; and Fig. Figure 17 is an enlarged partial cross-sectional view of the sealing arrangement of the Fig. 15, which is in a second configuration. DETAILED DESCRIPTION OF THE INVENTION
[0011] The following detailed description and the accompanying drawings describe and illustrate various embodiments of the invention. The description and drawings are intended to enable a person skilled in the art to carry out and use the invention, without limiting its scope. With regard to the disclosed methods, the steps presented are exemplary, and therefore the sequence of steps is not necessarily mandatory or critical.
[0012] Fig. 2 to Fig. 4 constitute a sealing arrangement 5 according to one embodiment of the invention. The sealing arrangement 5 features a sealing structure 10 , a first block 20 , a second block 40 , a deployment 60 and an adapter 80 on. The sealing arrangement 5is designed to form a fluid-tight seal between the components involved, on opposite sides of a housing wall 90 , to train. The housing wall 90 For example, it can form the outer surface of a distribution tank of a heat exchanger for use in a motor vehicle. The heat exchanger can be a cooler or radiator that includes a distribution tank designed to hold a primary heat transfer fluid. The primary fluid can be a coolant used to transfer heat energy to the motor vehicle's engine.
[0013] A secondary heat exchanger housing 99 is located in the distribution tank and securely connected to the adapter 80 coupled. The secondary heat exchanger housing 99It forms a flow path designed to accommodate a second fluid. This second fluid is intended to transfer thermal energy between it and the first fluid flowing through the distribution tank, while maintaining fluidic isolation from each other. The secondary heat exchanger housing 99 As a non-restrictive example, this could be implemented as a transmission oil cooler located in the cooler's distribution tank, and the second fluid could be transmission oil from the vehicle's transmission system. It is simply an inlet or outlet section of the secondary heat exchanger housing. 99 shown, since the structure of the secondary heat exchanger housing 99 the functioning of the sealing arrangement 5 not affected. The secondary heat exchanger housing 99It can be designed either for a single tank or through the interaction of several plate-shaped structures. However, the adapter can 80 naturally including any form of fluid-transporting component or structure located inside the housing wall 90 , are in fluid communication without moving away from the subject matter of the present invention.
[0014] The sealing structure 10 features a first sealing section 12 and a second sealing section 14 up. The first sealing section 12 It is essentially a flat ring. An outer circumferential edge of the first sealing section. 12 It features a chamfer formed on it. The chamfer provides an additional surface area for connection between the first sealing section. 12 and the second sealing section 14ready and furthermore enables the first sealing section 12 further inside than the second sealing section 14 is arranged without an undesirable amount of material that forms the second sealing section 14 forms, to be displaced during compression. The cross-sectional shape of the first sealing section. 12 is essentially rectangular, although other cross-sectional shapes, such as triangular, oval or other radial curves, are also applicable.
[0015] According to the embodiment shown, the first sealing section 12Made of tinned copper that has been annealed in a non-hydrogen inert gas prior to tinning to prevent embrittlement. Of course, other conventional materials can also be used, such as laminated tetrafluoroethylene, rubberized aluminum, PEEK, Vespel® high-performance polyimide polymer, hard tin, Babbitt, bronze, nickel, polyamide, aluminum, or other metal-coated or rubberized metals. According to a particular embodiment, the first sealing section is 12Made from a soft, deformable material with a hardness of less than approximately 40 HR-15-T, where "H" stands for hardness and "R" for Rockwell hardness and surface Rockwell hardness test methods for metallic materials according to ASTM E 18. The hardness designation "15T" is a surface hardness scale that uses a 15 kg load and a 1 / 16" diameter hardened steel ball to indent a test specimen. Typical washer materials, such as hardened steel and hardened aluminum, have hardness values greater than 40 HR-15-T and are therefore not considered "soft" materials in the technical field. It is apparent to a person skilled in the art that materials with a hardness greater than 40 HR-15-T are not suitable for use in the sealing structure. 10 are not suitable for the invention, which is instead designed to assist in the installation of the sealing structure 10under a force of, for example, approximately 500 lbf / inch to approximately 1000 lbf / inch of the sealing bead circumference, which is to be applied to the sealing structure 10 to be brought into contact in a sealing manner, to be plastically deformed.
[0016] The second sealing section 14 extends from the outer circumferential edge of the first sealing section 12 radially outwards. An annular channel is located in a radially inner section of the second sealing section. 14 designed to chamfer the first sealing section 12 to record. The second sealing section 14 is secured to the first sealing section by a conventional fastener. 12 fastened, for example by vulcanization, hot welding, press-fitting or pressure fitting, bonding, or by a mechanical fastening device. According to the illustrated embodiment, the second sealing section 14Made from an elastomer. The second sealing section 14 It can of course also be made from other conventional materials, such as ethylene propylene diene monomer (EPDM), fluororubber (FKM), chloroprene rubber (CR), acrylonitrile butadiene rubber (NBR) or hydrogenated acrylonitrile butadiene rubber (HNBR).
[0017] The first block 20 indicates an initial opening 24 , which essentially has a circular cross-section designed to receive a flow of the second fluid, and a second opening 28 on, which essentially has a circular cross-section designed to accommodate a fastening device 18 to record the first opening 24 It can be in fluid communication with a cone (not shown) that carries the second fluid. The cone can be located in at least one section of the first opening. 24recorded and safely with the first block 20 be coupled by a known method, such as soldering. Alternatively, the first block can 20 form an integrally designed extension of a component through which the second fluid is transported. It is evident to a person skilled in the art that the first block 20 any suitable structure for the fluid coupling of the first opening 24 with a source of the second fluid, without departing from the subject matter of the present invention.
[0018] A ring-shaped hub 30 extends from an area of the first block 20 outwards and has an axially extending lip 31 on, which protrudes from a distant end of the same. The lip 31 surrounds a ring-shaped area 33 , which serves as a sealing surface, set up to align with the sealing structure 10to intervene. A ring-shaped channel 32 is in the ring-shaped area 33 formed. In the embodiment shown, the channel has 32 It essentially has a V-shaped or trapezoidal cross-section. However, channels can of course also be used. 32 , which have other forms, are used.
[0019] A sealing bead 38 is on the ring-shaped surface 33 of the first block 20 formed at a position radially inside the channel 32 Although the shown sealing bead 38 While it has a V-shaped cross-section, other shapes can also be used. For example, Fig. 5 to Fig. 10 different configurations of the sealing bead 38 which have different cross-sectional shapes. Fig. 5 represents a sealing bead 38which essentially has a trapezoidal cross-sectional shape to accommodate the local load acting on a remote end of the sealing bead 38 distributed, to minimize. Fig. 6 represents a sealing bead 38 which has a curved distant end with a comparatively small radius of curvature, while Fig. 7 a sealing bead 38 represents a curved distant end with a comparatively large radius of curvature. Fig. 8 and Fig. 9 form a sealing bead 38 depict, which have oblique cross-sectional shapes, wherein one of the inwardly tapering surfaces is inclined at an angle that differs from that of the other inwardly tapering surface.
[0020] In Fig. 8 and Fig. 9 are sealing beads 38shown are those with radius-shaped or rounded remote ends, but of course sharper or point-shaped edges, comparable to those shown in Fig. 2 to Fig. 4 are revealed, are applied. Fig. 10 represents a configuration in which the sealing bead 38 It has several conical projections that are formed in a sawtooth configuration immediately adjacent to each other. It is apparent to a person skilled in the art that alternative configurations of the sealing bead are possible. 38 can be applied without straying from the subject matter of the present invention.
[0021] In specific exemplary embodiments, the sealing bead has 38 a front surface that is essentially V-shaped with an acute angle. The sealing bead 38It can be sufficiently pointed or sharp to remove contaminants such as oil, dirt, hair, paint or varnish particles, or other deposits that may unintentionally accumulate on the first sealing section. 12 to cut through the sealing structure. As a non-restrictive example, a maximum radius of the front of the sealing bead can be used. 38 , which is sufficient to cut through the contaminants and at the first sealing section 12 The required radii for the front of the sealing bead should be up to approximately 0.1 mm. However, other radii are also possible. 38 , which are sufficient to cut through the contaminants and at the first sealing section 12 to be applied. It is merely a sealing bead. 38 shown; however, several sealing beads can optionally be used. 38 can be applied, resulting in concentric rings.
[0022] The first block 20 It also has a leverage feature 29 on, which is on one side of the second opening 28 opposite the hub 30 is trained. The leverage characteristic 29 extends from a substantially flat surface of the first block 20 on one of the second blocks 40 A congenial manner. The leverage feature 29 can essentially have a heel-like structure or appearance, by virtue of the leverage feature 29 from the area of the first block 20 extended away.
[0023] The second block 40 indicates an initial opening 50 , which essentially has a circular cross-section, designed to facilitate use 60 to record, and a second opening 54 on, which essentially has a circular cross-section designed to accommodate the fastener 18 to record the first opening 50It features a ring-shaped shoulder 51 on, to determine an axial position of the insert 60 relative to the second block 40 The second opening 54 of the second block 40 A thread can be used to interact with a threaded section of the fastener. 18 exhibit. It is apparent to a person skilled in the art that other suitable fastening methods can also be used within the subject matter of the present disclosure. Furthermore, the fastening means can 18 alternatively, it may be replaced by any other mechanism suitable for applying a clamping force to push the first block. 20 towards the second block 40 to provide.
[0024] A leverage feature was introduced. 29 shown and described, which is shown at the first block 20is trained, however, it is apparent to the expert that the lever feature can alternatively be used by the second block. 40 towards the first block 20 can protrude without affecting the functionality of the sealing arrangement 5 to influence.
[0025] The first block 20 and the second block 40 They can be made from any material that provides sufficient corrosion resistance under the operating conditions of a cooling system. For example, the blocks can be made of... 20 , 40 They can be formed by extrusion or die casting of a metal, such as aluminum or steel, or a metal alloy, such as an aluminum alloy. According to a specific example, the blocks are... 20 , 40Cast from a die-casting-compatible aluminum alloy. One exemplary aluminum alloy for die casting contains up to approximately 0.6% copper to provide the desired corrosion resistance. According to another example, the blocks are 20 , 40 Anodized to minimize corrosion during operation. Other suitable materials and treatments to improve corrosion resistance can be applied as required.
[0026] The deployment 60 extends axially from a first end 61 to a second end 62 the same with an opening extending through it 63 , which essentially has a circular cross-section. The opening shown 63 points between the first end 61 and the second end 62 the deployment 60a conical section of increasing diameter, but of course the opening can 63 have any cross-sectional shape and any structure without departing from the subject matter of the present invention. The first end 61 the deployment 60 has a ring-shaped surface 65 on, which opens 63 surrounds and serves as a sealing surface for interaction with the sealing structure 10 functions. A ring-shaped depression 68 surrounds the ring-shaped area 65 and provides a space to accommodate the lip 31 of the first block 20 ready. The ring-shaped area 65 has a ring-shaped channel formed within it 66 on, which essentially has a V-shaped or trapezoidal cross-section. Of course, channels can also be used. 66, which have cross-sectional shapes other than those shown and described, can be used without departing from the subject matter of the present invention.
[0027] The ring-shaped area 65 It also features a sealing bead. 78 on, which pertains to the canal 66 is arranged radially inside and the sealing bead 38 of the first block 20 opposite each other. It should be noted that the opposing sealing beads 38 , 78 simplify the formation of the primary seal, regardless of whether contamination occurs in the conventional way on the first sealing section. 12 the sealing structure 10 is present. As with the sealing bead. 38 of the first block 20 can the sealing bead 78 the deployment 60have a front face that is essentially V-shaped with an acute angle or that is rounded with a small radius of curvature. The sealing bead 78 for example, it may have one of the forms that are in Fig. 5 to Fig. 10 are revealed, in relation to the opposite sealing bead 38 of the first block 20 The sealing bead 78 It can be sufficiently pointed or pinpoint in shape to remove contaminants such as oil, dirt, hair and other deposits that may unintentionally accumulate on the first sealing section. 12 the sealing structure 10 to cut through. Optionally, several sealing beads can be used. 78 are applied, with each of the sealing beads 78 relative to one of the sealing beads 38 is trained in a targeted manner.
[0028] The deployment 60 exhibits a section of the larger diameter76 adjacent to the first end 61 the deployment 60 and a section of the smaller diameter 77 adjacent to the second end 62 the deployment 60 on. An outer surface of the section with the larger diameter. 76 has a ring-shaped shoulder 73 up. The ring-shaped shoulder 73 is designed to counteract the ring-shaped shoulder 51 of the second block 40 to border, thereby enabling axial positioning of the insert 60 relative to the second block 40 is realized. An outer surface of the section with the smaller diameter. 77 has a threaded section 74 on, which is from the section with the larger diameter 76 is spaced apart.
[0029] An inside corner 69 is at the intersection of the section with the larger diameter 76 and the section of the smaller diameter 77the deployment 60 trained. The inside corner 69 is from the threaded section 74 spaced and set up to hold an O-ring 79 to record, whereby the O-ring 79 It acts as a sealing structure. The O-ring 79 It can essentially have an elliptical or circular cross-sectional shape. According to the embodiment shown, the O-ring is... 79 Made from an elastomer. Naturally, the O-ring can 79 may also be made from other conventional materials, such as ethylene propylene diene monomer (EPDM), fluororubber (FKM), chloroprene rubber (CR), acrylonitrile butadiene rubber (NBR) or hydrogenated acrylonitrile butadiene rubber (HNBR).
[0030] How best to do it in Fig. As shown in section 4, the deployment indicates 60 furthermore, four slots 67 up, which extend from the first end 61 the deployment 60at the intersection of the ring-shaped surface 65 and the area of deployment 60 , which opens 63 defined, extending axially. The slots 67 are from the front of the sealing bead 78 formed radially inwards and extend a suitable distance in the axial direction of the insert 60 The slots 67 are designed to receive a suitable tool (not shown) which has projections that match the shape of the slots 67 correspond so that the tool fits into the slots 67 can intervene to prevent the operation from being turned around 60 to simplify. The tool could, for example, resemble a Phillips screwdriver with four protruding edges. Of course, its use can 60 any number of slots 67 exhibit, and the slots 67can be any suitable cross-sectional shape for engagement with a suitable tool that is used to rotate the insert 60 is used, exhibit.
[0031] The deployment 60 can be made from a material that is considered suitable for forming the blocks 20 , 40 was described. The deployment 60 It can be made of materials such as aluminium, steel or a metal alloy, such as an aluminium alloy.
[0032] The adapter 80 extends axially from a first end 81 to a second end 82 the same. An opening 83 , which essentially has a circular cross-section, extends axially through the adapter 80 through it. An inner surface of the adapter 80 , which opens 83 defined, has a threaded section 84 on, which is set up to work with the threaded section74 the deployment 60 to cooperate. The first end 81 of the adapter 80 features a ring-shaped collar 85 on which a conical surface 86 exhibits angles to the axial direction of the adapter. 80 is formed. The ring-shaped collar 85 has an outer diameter that is smaller than the inner diameter of an opening 92 , formed in the housing wall 90 , which are used to hold the collar 85 It is equipped with a flange section. 87 of the adapter 80 extends radially outwards over the collar 85 outwards and forms a surface for the engagement of a seal. 95 , taken over the collar 85 of the adapter 80 The seal 95 It acts as a sealing structure made of a largely deformable elastomer. Naturally, the seal can 95It can also be made from other conventional materials, such as ethylene propylene diene monomer (EPDM), fluororubber (FKM), chloroprene rubber (CR), acrylonitrile butadiene rubber (NBR), or hydrogenated acrylonitrile butadiene rubber (HNBR). The seal shown 95 It essentially has a rectangular cross-section, however, other cross-sectional shapes can also be used without departing from the subject matter of the present invention.
[0033] With reference to Fig. 2 and Fig. 3 is an assembly method for the sealing arrangement 5 revealed. First, the adapter is revealed. 80 in an interior area of the housing wall 90 positioned, with the second end 82 the adapter mechanically and fluidically connected to the secondary heat exchanger housing 99 , arranged within the housing wall 90 , is coupled. The second end 82 of the adapter80 can be used, for example, with an inlet or outlet manifold of the heat exchanger housing. 99 to be coupled. The first end 81 of the adapter 80 is then attached to the housing wall 90 trained opening 92 brought up.
[0034] Next, the second block will be discussed. 40 relative to the opening 92 the case wall 90 by means of a positioning feature 96 , which is on an outer surface of the housing wall 90 is arranged, positioned. The positioning feature 96 can be a projection that has a circumferential shape that is essentially a form of the second opening 54 of the second block 40 corresponds. The inclusion of the positioning feature 96 in the second opening 54 prevents the second block from rotating 20 relative to the housing wall 90 .
[0035] After positioning the second block 40 relative to the housing wall 90 is the first opening 50 of the second block 40 essentially with the opening 92 , formed in the housing wall 90 , as well as the opening 83 , trained in the adapter 80 , aligned. The deployment 60 will then be opened 50 of the second block 40 inserted until the threaded section 74 of the section of the smaller diameter 77 the deployment 60 with the threaded section 84 the opening 83 of the adapter 80 comes into play. A suitable tool (not shown) is then used to cut the slots. 67 the deployment 60 to intervene in order to reverse the operation 60 relative to the adapter 80 to effect, thereby increasing the use 60in the axial direction further to the adapter 80 moved. The deployment 60 crosses the threaded section 84 of the adapter 80 further, until the shoulder 73 the deployment 60 on the shoulder 51 , trained in the first opening 50 of the second block 40 , is involved. At this point, another turn of the stake is required. 60 tend to use the adapter 80 axial to the second block 40 , which causes the seal 95 between the housing wall 90 and the flange section 87 of the adapter 80 compressed or squeezed together until a suitable and essentially fluid-tight seal is achieved between them.
[0036] During the rotation of the operation 60 relative to the adapter 80 will the O-ring 79 , arranged at the deployment 60 , between the section of the larger diameter 76the deployment 60 and the conical surface 86 of the collar 85 compressed. The way the conical surface 86 The angled design with respect to both the axial and radial directions causes compression of the O-ring. 79 both in axial and radial directions when used 60 closer to the adapter 80 is pulled, creating an essentially fluid-tight seal between the adapter 80 and the use 60 is being promoted.
[0037] The deployment 60 and the second block 40 work together to create a female component that is used to incorporate a male component in the form of the first block 20 is set up to train. The sealing structure 10 is between the ring-shaped area 65 the deployment 60 and the ring-shaped area 33 of the first block 20positioned when the hub 30 in the first opening 50 of the second block 40 recorded. The lip 31 the hub 30 extends into the depth 68 , which forms the ring-shaped area 65 the deployment 60 surrounds when the sealing beads 38 , 78 at the first sealing section 12 the sealing structure 10 to be attached. The fastening device 18 is through the second openings 28 , 54 the blocks 20 , 40 inserted and rotated to form the first block 20 towards the second block 40 to move.
[0038] Fig. 3 represents a sealing arrangement 5 this applies if the fastening device 18 was rotated to a position where the sealing beads 38 , 78 with opposite sides of the sealing structure 10be in contact and before the lever feature engages 29 with the second block 40 . Will the fastener 18 As it is turned further, the sealing beads become 38 , 78 compressed and collide with the first sealing section 12 the sealing structure 10 , thereby forming a primary seal. The second sealing section 14 the sealing structure 10 creates a secondary seal with the ring-shaped surfaces 33 , 65 If part of the fluid that passes through the openings 24 , 43 flows behind the primary seal, formed by the first sealing section 12 and the sealing beads 38 , 78 If it escapes, the second sealing section takes effect. 14 the escape of fluid from the sealing assembly 5 into the atmosphere. The second sealing section 14It also serves as a surrounding seal, preventing harmful contaminants from entering the first sealing section. 12 keeps away.
[0039] The leverage feature 29 , trained at the first block 20 , stands with the second block 40 engages and acts as a pivot point for distributing the clamping force between the first and second block 20 , 40 is trained via the fastening device 18 accordingly onto the ring-shaped surfaces 33 , 65 of the first block 20 and the deployment 60 Furthermore, the inclusion of the lever feature enables 29 a rotation of the fastener 18 , until a section of the first block 20 next to the opening 28 to the second block 40 can bend in response to the compression of the first block 10 between the fastener 18 and the second block 40Overtightening of the fastener 18 promotes further compression of the sealing structure 10 between the first block 20 and the use 60 , in the case where the fastening device 18 unintentionally twisted away from the excessively tightened position due to the leverage effect 29 , despite the loosening of the fastening device 18 continues to act as a pivot point. A more detailed explanation of the interaction between a male component and a female component for compressing a metallic sealing structure is provided in U.S. Patent No. 9,261,194, Kesler et al., which is hereby incorporated by reference in its entirety.
[0040] The sealing arrangement 5 This offers many advantages over the prior art sealing arrangement. Firstly, the use of the sealing structure offers 10, which includes both the first sealing section 12 as well as the second sealing section 14 It offers improved sealing compared to the use of a radially or axially compressed elastomer sealing structure, such as an O-ring. The improved sealing is achieved through the introduction of sealing beads. 38 , 78 into the sealing structure 10 , the flowability of the material that forms the sealing structure 10 develops, and the improved compression formed by the incorporation of the lever feature 29 , causes. Secondly, the manner in which the sealing assembly is mounted prevents 5 a rotation of the sealing arrangement 5 relative to the housing wall 90 during prolonged use. The compression and the formation of the sealing structure. 10 between the first block 20 and the use 60 fixes a rotational position of the insert60 relative to the adapter 80 , while the recording of the positioning feature 96 in the opening 54 of the second block 40 a rotational position of the first and second blocks 20 , 40 fixed. Thus, the deployment can 60 not relative to the adapter 80 or O-ring 79 , which is positioned in between, rotate, thereby causing damage or wear to the O-ring. 79 is prevented, which would otherwise be caused by free rotation of the components of the sealing arrangement. 5 relative to each other or relative to the housing wall 90 could occur.
[0041] With reference to Fig. 11 is a sealing arrangement 105 according to a further embodiment of the invention. The sealing arrangement 105 has a second block 140 and a deployment 160 on, which compared to the second block 40and deployment 60 the sealing arrangement 5 , revealed in Fig. 2 to Fig. 4, are modified, however the remaining sealing arrangement 105 , encompassing the fastening device 18 , the first block 20 , the adapter 80 and the case wall 90 , remains unchanged and operates in the manner revealed above. The deployment 160 essentially the same as the deployment 60 , except in that a ring-shaped collar 163 added is one that differs from the extent of a first end. 161 the same extends axially. The collar 163 is for mounting the hub 30 of the first block 20 dimensioned when the first block 20 to the second block 140 is drawn. The stake 160 has a ring groove 164 on, which between the ring-shaped collar 163 and a ring-shaped area 165the deployment 160 , which are attached to the sealing structure 10 is set up, is trained. The addition of the collar 163 can lead to the deployment 160 , one shoulder 167 exhibits, relative to a central axis of the deployment 160 a longer distance radially outwards than the shoulder 73 the deployment 60 relative to a central axis of deployment 60 extends radially outwards.
[0042] The second block 140 is regarding the structure of the second block 40 modified to accommodate the modified insert 160 to be taken into account. The second block 140 has a flange section 142 on, which has a seating area 144 has a cylindrical opening 146 surrounds the seating area 144 is set up to be attached to the shoulder 167 the deployment 160to be concerned, and the opening 146 is set up to complete the remaining portion of the operation 160 , which extends axially across the shoulder 167 extends beyond, to include.
[0043] The collar's position 163 on deployment 160 advantageously spaced the ring-shaped area 165 , which is designed to be integrated into the sealing structure 10 to intervene, from the far end of the collar 163 The spacing of the ring-shaped surface 165 protects the ring-shaped area 165 against possible damage or contamination that may occur during handling or manipulation of the device 160 This could occur, whereby such damage or contamination could lead to the formation of a flow channel extending across the sealing structure. 10 extends beyond this point and can be beneficial. The sealing arrangement 105Apart from that, it works in the same way as the sealing arrangement. 5 .
[0044] With reference to Fig. 12 to Fig. 14 is a sealing arrangement 205 according to a further embodiment of the invention. The sealing arrangement 205 shows a deployment 260 and an adapter 280 on, which compared to the use 60 and adapter 80 the sealing arrangement 5 , revealed in Fig. 2 to Fig. 4, are modified, with the remaining sealing arrangement 105 , encompassing the fastening device 18 , the first block 20 , the second block 40 and the case wall 90 , remains unchanged and operates in the manner revealed above.
[0045] The deployment 260 is essentially identical to the use 60 and exhibits a section of the larger diameter 262and a section of the smaller diameter 263 up. The section with the smaller diameter 263 has an axially extending surface 264 up, and the section of the larger diameter 262 has a radially extending surface 265 on. The axially extending surface 264 of the section of the smaller diameter 263 has a threaded section 267 on, which extends from the radially extending surface 265 of the section with the larger diameter 262 is spaced apart. The deployment 260 differs from the use 60 by incorporating a conical surface 268 , which are perpendicular to the radial and axial directions of the insertion 260 , the radially extending area 265 with the axially extending surface 264 connects, is arranged.
[0046] The adapter 280essentially the same as the adapter 80 , with the exception of a modification of the first end 281 of the adapter 280 into a supportive relationship with the deployment 260 An opening 283 extends axially through the adapter 280 , and an inner surface of the adapter 280 , which opens 283 defined, has a threaded section 284 on, which is set up to work with the threaded section 267 the deployment 260 to cooperate. The first end 281 of the adapter 280 has a radially extending surface 286 , which are from an end of the opening 283 extends, and a ring-shaped collar 288 on, which is defined by a circumference of the radially extending surface 286 protrudes axially. The ring-shaped collar 288 can have an essentially rectangular cross-section, an axially extending surface 291and a radially extending area 292 exhibiting the radially extending surface. 292 is set up to work on the section with the larger diameter 262 the deployment 260 to be concerned if the deployment 260 relative to the adapter 280 has been fully implemented.
[0047] The sealing arrangement 205 It also features a sealing structure 230 on, which between the deployment 260 and the adapter 280 instead of the O-ring 79 the sealing arrangement 5 is arranged. The sealing structure 230 It is ring-shaped and has a substantially rectangular cross-sectional shape. A first surface 232 the sealing structure 230 is set up to operate on the radially extending surface 265 the deployment 260 to be adjacent, while a second surface arranged opposite it 234the same is set up to operate on the radially extending surface 286 of the adapter 280 to be concerned. The sealing structure 230 can have a thickness that varies in the axial direction of the insert 260 as well as the adapter 280 extends which is equal to or greater than a distance between the radially extending surface 265 the deployment 260 and the radially extending area 286 of the adapter 280 is trained when the collar 288 of the adapter 280 on the radially extending surface 265 the deployment 260 is located. The original thickness of the sealing structure. 230 is best in Fig. Figure 13 shows an enlarged view of the deployment. 260 , the sealing structure 230 and the adapter 280 represents before the insert is screwed in. 260 into the adapter 280the radially extending area 265 the deployment 260 on the collar 288 of the adapter 280 is pending.
[0048] In the embodiment shown, the sealing structure 230 Made from tinned copper that was annealed in a non-hydrogen inert gas prior to tinning to prevent embrittlement. Of course, other conventional materials can also be used, such as laminated tetrafluoroethylene, rubberized aluminum, PEEK, Vespel® high-performance polyimide, tin, Babbitt, bronze, nickel, polyamide, aluminum, or other metal-coated or rubberized metals. According to a particular embodiment, the sealing structure 230 made of a soft, deformable material with a hardness of less than approximately 40HR-15-T, where "H" stands for hardness and "R" for Rockwell hardness and surface Rockwell hardness test methods for metallic materials, as in ASTM E 18 The specified hardness designation "15T" is a surface hardness scale that uses a 15 kg load and a hardened ball with a diameter of 1 / 16" to indent a test specimen. Typical materials for rings, such as hardened steel and hardened aluminum, have a hardness value exceeding 40 HR-15-T and are therefore not considered "soft" materials in the technical field. It is evident to a person skilled in the art that materials with a hardness greater than 40 HR-15-T are not suitable for use in sealing structures. 230 are suitable for the invention, which is instead set up to assist in the installation of the sealing structure 230under a force of, for example, approximately 500 lbf / inch to approximately 1000 lbf / inch of the sealing bead circumference, which is to be applied to the sealing structure 230 to be brought into contact in a sealing manner, to be plastically deformed.
[0049] With reference to Fig. The deployment was on the 14th 260 fully into the adapter 280 screwed in, with the radially extending surface 265 the deployment 260 on the collar 288 of the adapter 280 is located. In this position, the sealing structure 230 between the deployment 260 and the adapter 280 compressed and exerts the conical surface 268 the deployment 260 a force on the sealing structure 230 in both radial and axial directions. The relative softness and deformability of the sealing structure. 230 allows the sealing structure to 230 deformed until the sealing structure230 a sealing point 250 , trained through the interaction of the deployment 260 and the adapter 280 , essentially fills. In particular, the sealing point 250 through the interaction of the radially extending surface 265 , the conical surface 268 and the axially extending surface 264 the deployment 260 in conjunction with the axially extending surface 291 and the radially extending area 286 of the adapter 280 defined. A cross-sectional area of the sealing point. 250 after the deployment is fully underway 260 into the adapter 280 can be essentially equal to a cross-sectional area of the sealing structure before deformation. 230 This deforms the essentially rectangular cross-sectional shape of the sealing structure. 230 , to the irregularly shaped sealing point 250to fill essentially completely, thereby creating a sealing structure 230 within the sealing point 250 It is sealed hydrostatically. The sealing point 250 Furthermore, it prevents any additional movement of the sealing structure. 230 after the full deployment of the stake 260 into the adapter 280 , by modifying the sealing structure 230 essentially completely surrounds and limits their movement, both in the axial and radial directions of the insertion. 260 and the adapter 280 .
[0050] The hydrostatic sealing of the sealing structure 230 within the sealing point 250 prevents the sealing structure 230 is subjected to further unintentional creeping deformation, which would otherwise compromise the effectiveness of the sealing arrangement 205which could impair performance after prolonged use. Furthermore, the effects on the sealing structure are conducive to this. 230 The compressive forces cause the material to flow, which affects the sealing structure. 230 trains, in any irregularities or surface defects that may occur during use 260 and / or in the adapter 280 are present to prevent the formation of flow channels between the sealing structure 230 and the use 260 or the adapter 280 to prevent, which could otherwise impair the seal formed in between. Finally, the elements that affect the sealing structure prevent 230 The applied compression forces cause a rotation of the insert. 260 relative to the adapter 280 , which causes an unintentional rotation of the sealing assembly 205 relative to the housing wall 90 is prevented.
[0051] With reference to Fig. 15 to Fig. 17 is a sealing arrangement305 according to a further embodiment of the invention. The sealing arrangement 305 essentially resembles the sealing arrangement 5 and features a fastening device 18 , the first block 20 , the second block 40 and the case wall 90 , as explained above. The sealing arrangement 305 exhibits a modified application 360 and adapter 380 on, which are used to compress a sealing structure 330 can be used in between.
[0052] The deployment 360 essentially the same as the deployment 60 and exhibits a section of the larger diameter 362 and a section of the smaller diameter 363 up. The section with the smaller diameter 363 has an axially extending surface 364 up, and the section of the larger diameter 362 has a radially extending surface365 on. The axially extending surface 364 of the section of the smaller diameter 363 has a threaded section 367 on, which extends from the radially extending surface 365 of the section with the larger diameter 362 is spaced apart. The deployment 360 It also features a pair of ring-shaped sealing beads. 327 up, which extend from the radially extending surface 365 protrudes axially.
[0053] The adapter 380 essentially the same as the adapter 280 and has an opening 383 on, which extends axially through this, with a threaded section 384 , which is set up to work with the threaded section 367 the deployment 360 to cooperate. A first end. 381 of the adapter 379 has a radially extending surface 386 , which are from an end of the opening 383extends, and a ring-shaped collar 388 on, which is defined by a circumference of the radially extending surface 386 The ring-shaped collar protrudes axially. 388 It can essentially have a rectangular cross-sectional shape, an axially extending surface 391 and a radially extending area 392 exhibiting the radially extending surface. 392 is set up to work on the section with the larger diameter 362 the deployment 360 to be concerned if the deployment 360 relative to the adapter 380 is fully inserted. The adapter 380 It also features a pair of ring-shaped sealing beads. 392 up, which extend from the radially extending surface 386 axially and relative to the pair of sealing beads 372 of the adapter 360 Standing aligned in front.
[0054] Each of the sealing beads 372 , 392 the deployment 360and / or the adapter 380 can one of the in the Fig. 5 to Fig. exhibit the 10 cross-sectional shapes shown, with regard to the sealing beads. 38 , 78 According to specific exemplary embodiments, the sealing beads have 372 , 392 Each has a front face that is essentially V-shaped with an acute angle. The sealing beads 372 , 392 can be sufficiently pointed to prevent contaminants such as oil, dirt, hair or other deposits that may unintentionally accumulate on a surface of the sealing structure. 330 can be found, to cut through.
[0055] The sealing structure 330 is identical to the sealing structure revealed above. 230 , with reference to the sealing arrangement 205 , and can have an original thickness relative to the radially extending surface 386greater than the height of the ring-shaped collar 388 is. The original thickness of the sealing structure 330 is best in Fig. Figure 16 shows an enlarged view of the deployment. 360 , the sealing structure 330 and the adapter 380 represents, before during the screwing in of the insert 360 into the adapter 380 the radially extending area 365 the deployment 360 on the collar 388 of the adapter 380 is pending.
[0056] With reference to Fig. The deployment was on the 17th 360 fully into the adapter 380 screwed in, with the radially extending surface 365 the deployment 360 on the collar 388 of the adapter 380 is located. In this position, the sealing structure 330 between the deployment 360 and the adapter 380Compressed. The relative softness and deformability of the sealing structure. 330 allows the sealing structure to 330 deformed until the sealing structure 330 a sealing point 350 , defined by the interaction of the radially extending surface 365 and the axially extending surface 364 of the use in conjunction with the axially extending surface 391 and the radially extending area 386 of the adapter 380 , essentially fills. A cross-sectional area of the sealing point 350 after the full deployment of the stake 360 into the adapter 380 can essentially be equal to a cross-sectional area of the sealing structure 330 before the deformation occurs. Thus, the essentially rectangular cross-sectional shape of the sealing structure deforms. 330 , to seal the sealing point 350to fill essentially completely, thereby creating a sealing structure 330 within the sealing point 350 It is sealed hydrostatically. The sealing point 350 Furthermore, it prevents any further movement of the sealing structure 330 after the full deployment of the stake 360 into the adapter 380 , by modifying the sealing structure 330 essentially surrounds and limits their movement, both in the axial and radial directions of deployment. 360 and the adapter 380 .
[0057] The hydrostatic sealing of the sealing structure 330 within the sealing point 350 prevents the sealing structure 330 unintentionally undergoes further creeping deformation, which would otherwise impair the effectiveness of the sealing arrangement 305This could be detrimental after prolonged use. Furthermore, the compression forces acting on the sealing structure can contribute to this. 330 effect, a flow of the material that affects the sealing structure 330 trains, in irregularities or surface defects that occur during use 360 and / or the adapter 380 present to prevent the formation of flow channels between the sealing structure 330 and the use 360 and / or the adapter 380 to prevent any forces that could impair the seal formed in between. Finally, the compressive forces acting on the sealing structure are prevented. 330 have an effect, and the purpose of the sealing ridges 372 , 392 furthermore, a rotation of the insert 360 relative to the adapter 380 , which causes an unintentional rotation of the sealing assembly 305 relative to the housing wall 90 is prevented.
[0058] Sealing structures were used 230 , 330 described which have an essentially rectangular cross-sectional shape, but it is apparent to the person skilled in the art that alternative shapes may be used as long as the resulting sealing structure substantially fills the resulting sealing point formed by the interaction of the insert and the adapter.
[0059] It is furthermore evident to a person skilled in the art that each of the sealing arrangements shown and described herein 5 , 105 , 205 and 305 so that these features of the other sealing arrangements can be modified. 5 , 105 , 205 , 305 features, without departing from the subject matter of the present invention. For example, the axially extending collar can 163 the deployment 160 for use with any of the inserts 260 , 360 be adapted.
[0060] From the foregoing description, the essential characteristics of this invention are easily recognizable to the person skilled in the art, whereby various changes and modifications can be made to the invention in order to adapt it to different uses and conditions without departing from its essence and subject matter. QUOTES INCLUDED IN THE DESCRIPTION
[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature
[0000] US 9261194
[0039]
Claims
[1] Sealing arrangement for a housing wall in which an opening is formed, wherein the sealing arrangement comprises: a first block comprising a first opening, a second opening and a first annular sealing surface surrounding the first opening; a second block having a third opening and a fourth opening, wherein a surface of the second block defining the fourth opening has a first threaded section; an insert having a fifth opening, a second annular sealing surface and a second threaded section; a first sealing structure arranged between the first annular sealing surface and the second annular sealing surface, which is designed to compress between them; an adapter having a sixth opening, wherein a surface of the adapter defining the sixth opening has a third threaded section designed to engage with the second threaded section of the insert; a second sealing structure, arranged between the insert and the adapter, designed to compress between them; and a fastening means which is received in the second opening of the first block and the fourth opening of the second block, wherein the fastening means has a fourth threaded section which is configured to engage in the first threaded section of the second block. [2] Sealing arrangement according to claim 1, wherein the first annular sealing surface has a first sealing bead and the second annular sealing surface has a second sealing bead, wherein the first sealing bead and the second sealing bead are arranged to act upon the first sealing structure. [3] Sealing arrangement according to claim 1 or 2, wherein the insert has at least one axially extending slot extending from the second annular sealing surface, wherein the at least one axially extending slot is provided for the engagement of a tool for rotating the insert relative to the adapter. [4] Sealing arrangement according to one of the preceding claims, wherein the insert has an annular collar extending in the axial direction of the insert beyond the second sealing surface of the same, extending from the second threaded section to the second annular sealing surface, wherein the annular collar is provided to receive the first annular sealing surface of the first block therein. [5] Sealing arrangement according to one of the preceding claims, wherein the first block or the second block has a lever feature projecting from it towards the other block. [6] Sealing arrangement according to one of the preceding claims, wherein the first sealing structure comprises a first section formed from a plastically deformable metal and a second section formed from an elastomeric material. [7] Sealing arrangement according to one of the preceding claims, wherein the fourth opening of the second block is provided to receive a positioning feature formed on the housing wall for fixing a rotational position of the second block relative to the housing wall. [8] Sealing arrangement according to one of the preceding claims, wherein the adapter is mechanically coupled to an internal heat exchanger housing, arranged on one side of the housing wall opposite the first block and second block, wherein the internal heat exchanger housing is in fluid communication with the first opening of the first block and the fifth opening of the insert. [9] Sealing arrangement according to one of the preceding claims, wherein the first block forms a male component and the second block and the insert cooperate to form a female component which is configured to receive the male component. [10] Sealing arrangement according to one of the preceding claims, wherein the second sealing structure is formed from a plastically deformable metal. [11] Sealing arrangement according to claim 10, wherein the insert and the adapter cooperate to define a sealing point when a radially extending surface of the adapter abuts an end of the adapter, wherein a cross-sectional area of the sealing point is substantially equal to a cross-sectional area of the second sealing structure prior to compression between the insert and the adapter. [12] Sealing arrangement according to claim 11, wherein the second sealing structure plastically deforms to substantially fill the sealing area during compression of the second sealing structure between the insert and the adapter. [13] Sealing arrangement according to claim 12, wherein the sealing point limits movement of the second sealing structure in both the axial and radial directions of the insert in order to minimize further deformation of the sealing structure during use of the sealing arrangement. [14] Sealing arrangement according to one of claims 11 to 13, wherein both a surface of the insert defining a first section of the sealing point and a surface of the adapter defining a second section of the sealing point have a sealing bead which is arranged to act upon the second sealing structure during compression between the insert and the adapter. [15] Sealing arrangement according to one of claims 10 to 14, wherein the plastically deformable metal has a hardness of less than 40 HR-15-T. [16] Sealing arrangement according to one of the preceding claims, wherein the insert has a section of the larger diameter having the second annular sealing surface and a section of the smaller diameter having the second threaded section. [17] Sealing arrangement according to claim 16, wherein the section of the larger diameter of the insert has a first shoulder which is configured to engage with a second shoulder formed on the surface of the second block which defines the fourth opening. [18] Sealing arrangement according to claim 16 or 17, wherein the section of the larger diameter of the insert has a first radially extending surface having a first sealing bead, and the adapter has a second radially extending surface having a second sealing bead in a relation to the first sealing bead. [19] Heat exchanger arrangement comprising: a heat exchanger tank designed to receive a first fluid and having an outer casing wall in which an opening is formed and a positioning feature projecting from it; an internal heat exchanger housing arranged within the heat exchanger tank and designed to accommodate a second fluid, which is fluidically isolated from the first fluid; and a sealing arrangement which features: a first block comprising a first opening, a second opening and a first annular sealing surface surrounding the first opening; a second block having a third opening and a fourth opening, wherein a surface of the second block defining the fourth opening has a first threaded section, wherein the fourth opening is configured to receive the positioning feature of the housing wall therein; an insert having a fifth opening, a second annular sealing surface and a second threaded section; a first sealing structure arranged between the first annular sealing surface and the second annular sealing surface, which is designed to compress between them; an adapter mechanically coupled to the internal heat exchanger housing and having a sixth opening, wherein a surface of the adapter defining the sixth opening has a third threaded section designed to engage with the second threaded section of the insert; a second sealing structure, arranged between the insert and the adapter, designed to compress between them; and a fastening means which is received in the second opening of the first block and the fourth opening of the second block, wherein the fastening means has a fourth threaded section which is configured to engage in the first threaded section of the second block. [20] Heat exchanger arrangement according to claim 19, wherein the first sealing structure and the second sealing structure are formed from a plastically deformable metal.