AN ARRESTING SYSTEM

Abstract

 A system for arresting movement of a heat exchanger core includes a main housing, an internal housing and a pressing arrangement. The internal housing is located in the main housing and receives the heat exchanger core. The internal housing includes a first portion and a second portion. The second portion is displaceable with respect to the first portion. The pressing arrangement is configured between the second portion and the main housing. The pressing arrangement presses the second portion against the heat exchanger core, when at least a predetermined portion of the internal housing is received in the main housing.

Description

[0001] The present invention relates to a system for arresting movement of a body received within housing, particularly, the present invention relates to a system for arresting movement of a heat exchanger core received in a housing.

[0002] Generally, length and width of a heat exchanger core is repeatable and a housing 2 as illustrated in FIG. 1 or a simple bracket 5 as illustrated in FIG. 2 is sufficient to arrest motion thereof in two directions, i.e. one parallel to the length and the other parallel to width of the heat exchanger core 4. The same bracket 5 or the housing 2 also arrests rotational motion of the heat exchanger core 4 in three rotational axes thereof. The housing 2 includes a first portion 2a and a second portion 2b that are disposed around a heat exchanger core 4 and the two portions 2a, 2b are held together. The bracket 5 also includes portions 5a and 5b that are disposed around the heat exchanger core 4 and joined at the ends 6a and 6b and the ends 6a and 6b are held together by fasteners to define an enclosure for receiving and securing holding the heat exchanger core 4 therein. Even in case some clearances are provided between the heat exchanger core 4 and the bracket 5 or the housing 2, these clearances can be removed by using the fasteners such as screws 3. Further, such an arrangement of fasteners or screws 3 also facilitates in enhancing grip of the bracket 5 or the housing 2 over the heat exchanger core 4 and also maintains the bracket 5 or the housing 2 in a gripping configuration thereof in which the bracket 5 or the housing 2 firmly grips the heat exchanger core 4 received therein. However, the simple bracket 5 or the housing 2 may fail to arrest the movement of the heat exchanger core 4 in a direction parallel to height of the heat exchanger core 4, particularly in the direction represented by arrows "Z" in the FIG. 1 and FIG. 2. Additionally, if such frames, particularly, the bracket 5 or the housing 2 with heat exchanger cores 4 received therein are put into additional housings, they may be subject to various displacements therein. More specifically, as the heat exchanger core 4 along with the frame are not securely held inside the additional housing, the heat exchanger core 4 can move within the additional housing resulting in part to part contact between the internal walls of the additional housing and the outside walls of either the frame or the heat exchanger core 4 that in turn may cause noise. Also, such continuous part to part contact may cause damage to the heat exchanger.

[0003] The heat exchanger core 4 is generally configured by stacking and joining a plurality of heat exchanger plates 4a, 4b, 4c... 4n by brazing. To ensure good brazing connection between the heat exchanger plates 4a, 4b, 4c... 4n, the height of the heat exchanger core 4 is not efficiently controlled. In some cases, compression forces applied and controlled by springs configured on brazing frames used during brazing. However, height of the heat exchanger core 4 is still not repeatable and may vary. Specifically, the heat exchanger cores 4 still exhibit height tolerances in the range of +/- 4 mm. Although, the tolerances can be reduced by process optimization, the process optimization is difficult to achieve.

[0004] Generally, flexible clips 8a, 8b, 8c, ....8n are used for removing clearances that may occur to facilitate accommodating of different heights of the heat exchanger core 4 and arresting the movement of the heat exchanger core 4 in a direction parallel to height of the heat exchanger core 4, particularly in the direction represented by arrows "Z" in the FIGURE 1 and FIGURE 2. However, such system may be prone to failure. More specifically, capacity of the clips 8a, 8b, 8c, .... 8n to arrest movement of the heat exchanger core 4 in the "Z" direction is limited and such clips exhibit limited adaptability to even slight changes in heat exchanger core size, thereby failing to effectively arrest the movement of the heat exchanger core. Further, the performance of the clips is dependent on the material properties of material configuring the clips 4 that may deteriorate with frequent use, wear and tear and exposure to stringent environmental conditions such as high temperature and vibrations to which the clips 8a, 8b, 8c, .... 8n are often subjected to.

[0005] Accordingly, there is a need for a system for arresting movement of a heat exchanger core with respect to the bracket or the housing, particularly, in a direction parallel to height of the heat exchanger core. Further, there is a need for a system for_arresting movement of a heat exchanger core with respect to the bracket 5 of the housing 2 that obviates the drawbacks associated with use of clips that are conventionally used for arresting the movement of the heat exchanger core with respect to the housing, wherein such clips exhibit limited adaptability to change in heat exchanger core size and thereby fail to effectively grip and arrest movement of the heat exchanger core 4. Furthermore, there is a need for a system for arresting movement of a heat exchanger core 4 with respect to housing or the bracket that is not dependent on the material properties and performance thereof does not deteriorate with frequent use, wear and tear and exposure to stringent environmental conditions such as high temperature and vibrations.

[0006] An object of the present invention is to provide a system for arresting movement of a heat exchanger core received in a housing that tightly grips the heat exchanger core from all sides and effectively arrests any movement thereof.

[0007] An object of the present invention is to provide a system for arresting movement of a heat exchanger core with respect to housing, particularly, in a direction parallel to height of the heat exchanger core.

[0008] Yet another object of the present invention is to provide a system for arresting movement of a heat exchanger core whose performance does not deteriorate with frequent use, wear and tear and exposure to stringent environmental conditions such as high temperature and vibrations.

[0009] In the present description, some elements or parameters may be indexed, such as a first element and a second element. In this case, unless stated otherwise, this indexation is only meant to differentiate and name elements which are similar but not identical. No idea of priority should be inferred from such indexation, as these terms may be switched without betraying the invention. Additionally, this indexation does not imply any order in mounting or use of the elements of the invention.

[0010] A system for arresting movement of a heat exchanger core is disclosed in accordance with an embodiment of the present invention. The system includes a main housing, an internal housing and a pressing arrangement. The internal housing is located in the main housing and receives the heat exchanger core. The internal housing includes a first portion and a second portion. The second portion is displaceable with respect to the first portion. The pressing arrangement is configured between the second portion and the main housing. The pressing arrangement presses the second portion against the heat exchanger core, when at least a predetermined portion of the internal housing is received in the main housing.

[0011] Specifically, the pressing arrangement includes first shaped elements configured on an outer wall of the second portion that interacts with an inner wall of the main housing to press the second portion against the heat exchanger core when at least a pre-determined portion of the internal housing is received in the main housing.

[0012] Alternatively, the pressing arrangement includes first shaped elements configured on an inner wall of the main housing that interacts with an outer wall of the second portion to press the second portion against the heat exchanger core when at least a pre-determined portion of the internal housing is received in the main housing.

[0013] Generally, the first shaped element is having a profile that is converging towards a base of the internal housing.

[0014] Typically, the second portion is thinner than the first portion.

[0015] Specifically, the internal housing includes a plurality of slots configured to facilitate inward movement of the second portion relative to the first portion, when at least a pre-determined portion of the internal housing is received in the main housing.

[0016] Generally, at least a part of the second portion extends above a periphery of the internal housing.

[0017] Preferably, the part of the second portion extending above the periphery of the internal housing is comparatively thinner than remaining of the second portion.

[0018] Generally, the pressing arrangement is configured on at least two opposite sides of the heat exchanger core.

[0019] In accordance with an embodiment of the present invention, the first shaped elements formed on outer wall of the second portion received in complimentary guide ways configured on the inner wall of main housing.

[0020] Alternatively, the first shaped elements formed on inner wall of the main housing received in complimentary guide ways configured on the outer wall of the second portion.

[0021] Typically, the main housing includes a top cover and a bottom portion.

[0022] Generally, the top cover is releasably attached to the bottom portion.

[0023] Specifically, the bottom portion is configured with slots that are complimentary to and receives corresponding clips configured on the top cover to assemble the top cover to the bottom portion.

[0024] Alternatively, the top cover is configured with slots that are complimentary to and receives corresponding clips configured on the bottom portion to assemble the top cover to the bottom portion.

[0025] Further, the system includes retaining arrangement that includes second shaped elements configured between the internal housing and the main housing that retains the internal housing within the main housing.

[0026] Typically, the second shaped element is configured on at least one of the top cover and the bottom portion.

[0027] Typically, the second shaped elements are extending from the top cover and interact with the thinner parts of the second portions to further press the second portions against the heat exchanger core received therein when at least a pre-determined portion of the internal housing is received in the main housing.

[0028] Generally, the first shaped element engages with the complimentary second shaped element to retain at least the pre determined portion of the internal housing within the main housing.

[0029] In another embodiment, the second shaped element engages with complimentary latching element configured on the internal housing to retain the pre determined portion of the internal housing within the main housing.

[0030] Other characteristics, details and advantages of the invention can be inferred from the description of the invention hereunder. A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying figures, wherein:

FIG. 1 illustrates an assembly of a heat exchanger core and a receiver drier received within a housing in accordance with the prior art, wherein portions of the housing are disposed around and grips the heat exchanger core to arrest motion thereof in two directions;

FIG. 2 illustrates a simple bracket with clips configured thereon in accordance with another prior art system for arresting movement of a heat exchanger core in a direction parallel to height of the heat exchanger core;

FIG. 3 illustrates a schematic representation depicting a main housing of a system for arresting relative movement between the main housing and a heat exchanger core in accordance with an embodiment of the present invention;

FIG. 4 illustrates a schematic representation depicting the system of FIG. 3, wherein a second shaped element of a retaining arrangement extending from a top cover of the main housing interacts with a part of a second portion of an internal housing that is extending above the periphery of the internal housing;

FIG. 5 illustrates a cut sectional view depicting the internal details of the system of FIG. 4, particularly, interaction between the second shaped element and the part of the second portion of the internal housing extending above the periphery of the internal housing and interaction between the second portion of the internal housing and the heat exchanger core received inside the internal housing;

FIG. 6 illustrates the system of FIG. 4 without the top cover for depicting the internal details of the system, particularly, the second portion gripping the heat exchanger core when pressed inward by first shaped elements;

FIG. 7a illustrates the internal housing of the system of FIG. 4, wherein the second portions are in a pressing configuration for defining a gripping configuration of the internal housing;

FIG. 7b illustrates the first shaped elements formed on inner wall of the main housing received in complimentary guide ways configured on outer wall of the second portion;

FIG. 7c illustrates first shaped elements formed on outer wall of the second portion received in complimentary guide ways configured on inner wall of main housing; and

FIG. 8 illustrates arrangement of clips and slots on the top cover and a bottom portion in accordance with another embodiment for facilitating assembly between the top cover and the bottom portion;

FIG. 9 illustrates engagement between second shaped element configured on inside wall of the bottom portion of the main housing and a latching element configured on outside wall of the interior housing.

[0031] It must be noted that the figures disclose the invention in a detailed enough way to be implemented, said figures helping to better define the invention if needs be. The invention should however not be limited to the embodiment disclosed in the description.

[0032] FIG. 1 illustrates an assembly 1 of a heat exchanger core 4 and a receiver drier 4a received within a housing 2 in accordance with the prior art, wherein the housing 2 arrests the movement of the heat exchanger core 4 only in two directions, i.e. one parallel to the length and the other parallel to width of the heat exchanger core 4 but such housing 2 fails to arrest motion of the heat exchanger core 4 in a direction parallel to the height of the heat exchanger core 4. FIG. 2 illustrates a simple bracket 5 in accordance with another prior art for arresting the movement of the heat exchanger core 4 in the two directions.

[0033] Particularly, the housing 2 includes two portions 2a and 2b that are disposed around the heat exchanger core 4 and the two portions 2a and 2b are held together to arrest motion of the heat exchanger core 4 in two linear directions, i.e. one parallel to the length referred to by arrow "X" and the other parallel to width of the heat exchanger core 4 referred to by arrow "Y". Referring to the FIG. 2, the bracket 5 includes portions 5a and 5b that are disposed around the heat exchanger core 4 and joined at the ends 6a and 6b and the ends are held together by fasteners to define an enclosure for receiving and securing holding the heat exchanger core 4 therein. The bracket 5 or the housing 2 is also capable of arresting rotational motion of the heat exchanger core 4 in three rotational axes. As the length and width of a heat exchanger core 4 is repeatable, the same bracket 5 or the housing 2 can be used with some clearances provided between the heat exchanger core 4 and the bracket 5 or the housing 2, wherein these clearances can be removed by using fasteners such as screws 3. However, the simple bracket 5 or the housing 2 fails to arrest the movement of the heat exchanger core 4 in a direction parallel to height of the heat exchanger core 4 referred to by arrow "Z", wherein the height of the heat exchanger core 4 is not repeatable and may vary.

[0034] FIG. 2 illustrates the simple bracket 5 with clips 8a, 8b, 8c, .... 8n configured thereon for arresting movement of the heat exchanger core 4 in a direction parallel to height of the heat exchanger core 4. More specifically, the clips 8a, 8b, 8c, ....8n configured on the bracket 5 are of plastic material and try to arrest the movement of the heat exchanger core 4 received within an enclosure defined by portions 5a and 5b of the simple bracket 5 in a direction parallel to height of the heat exchanger core referred to by the arrow "Z". However, the clips 8a, 8b, 8c, .... 8n used for arresting the movement of the heat exchanger core 4 in the direction parallel to height of the heat exchanger core 4 fails to effectively arrest movement of the heat exchanger core 4 in all directions and also fails to remove clearances that may occur to facilitate accommodating of different heights of the heat exchanger core 4. Further, the clips 8a, 8b, 8c, ....8n exhibit limited adaptability to change in heat exchanger core 4 sizes and thereby fail to effectively grip and arrest movement of the heat exchanger core 4. Also, the clips 8a, 8b, 8c, ....8n may deteriorate with frequent use, wear and tear and exposure to stringent environmental conditions such as high temperature and vibrations to which the clips 8a, 8b, 8c, .... 8n are often subjected to.

[0035] FIG. 3 illustrates a schematic representation depicting a main housing 10 or simply referred to as housing 10 of a system 100 for arresting movement of a heat exchanger core 20 (not illustrated in FIG. 3) received in the main housing 10 in accordance with an embodiment of the present invention.

[0036] FIG. 4, FIG. 5 and FIG. 6 depicts the internal details of the system 100, wherein the heat exchanger core 20 is received in an internal housing 30 and the internal housing 30 in turn is received in the housing 10. The internal housing 30 includes a first portion 32 and a second portion 34. The second portion 34 is displaceable with respect to the first portion 32. Specifically, the second portion 34 is comparatively more flexible than the first portion 32. The second portion 34 can be configured in such a manner so as to impart comparatively more flexibility to the second portion 34 than the first portion 32. For example, the second portion 34 is thinner than the first portion 32. Alternatively or additionally, the internal housing 30 includes a plurality of slots 40 configured to facilitate inward movement of the second portion 34 relative to the first portion 32, when at least a pre-determined portion of the internal housing 30 is received in the main housing 10. At least a part of the second portion 34 may extend above a periphery of the internal housing 30. The part of the second portion 34 extending above the periphery of the internal housing 30 may be comparatively thinner than remaining of the second portion 34.

[0037] Displacing the second portion 34 with respect to the first portion 32 enables the second portion 34 to achieve a pressing configuration and the internal housing 30 to achieve a gripping configuration, when at least a pre determined portion of the internal housing 30 is received in the housing 10. However, the present invention is not limited to any particular arrangement or configuration of the internal housing 30 and the first portion 32 and the second portion 34 of the internal housing 30 as far as the second portion 34 is displaceable relative to the first portion 32 upon application of pressing forces thereon to define the pressing configuration of the second portion 34 and the gripping configuration of the internal housing 30. The present invention is also not limited to the placement and the number of the second portions 34 configured on the internal housing 30.

[0038] The system 100 further includes a pressing arrangement configured between the second portion 34 and the main housing 10. The pressing arrangement is configured on at least two opposite sides of the heat exchanger core 20. The pressing arrangement presses the second portion 34 against the heat exchanger core 20 when at least a pre-determined portion of the internal housing 30 is received in the main housing 10. The pressing arrangement is in form of first shaped elements 36, 16 that depending upon whether configured on the second portion 34 or the main housing 10 interact with either one of the inside wall of the main housing 10 or an outside wall of the second portion 34 to cause pressing of the second portion 34 against the heat exchanger core 20 when at least a pre-determined portion of the internal housing 30 is received in the main housing 10. Generally, the first shaped elements 36 are having a profile that is converging towards a base 30b of the internal housing 30. Such a configuration of the first shaped elements 36 assists inserting of the internal housing 30 inside the main housing but deters the removing of the internal housing 30 from the main housing 10. Generally, the pressing arrangement includes first shaped elements 36 configured on an outer wall of the second portion 34 that interacts with an inner wall of the main housing 10 to press the second portion 34 against the heat exchanger core 20 when at least a pre-determined portion of the internal housing 30 is received in the main housing 10. Alternatively, the pressing arrangement includes first shaped elements 16 configured on an inner wall of the main housing 10 that interacts with an outer wall of the second portion 34 to press the second portion 34 against the heat exchanger core 20 when at least a pre-determined portion of the internal housing 30 is received in the main housing 10. However, the present invention is not limited to any particular configuration, number and placement of the first shaped elements 36,16 as far as the first shaped elements 36,16 facilitate pressing of the second portion 34 against the heat exchanger core 20 when at least a pre-determined portion of the internal housing 30 is received in the main housing 10.

[0039] In one embodiment of the present invention as illustrated in FIG. 7b, the first shaped elements 16 formed on inner wall of the main housing 10 are received in complimentary guide ways 39 configured on the outer wall of the second portion 34. Alternatively, as illustrated in FIG. 7c, the first shaped elements 36 formed on outer wall of the second portion 34 are received in complimentary guide ways 19 configured on the inner wall of the main housing 10. Such a configuration facilitates guiding of the internal housing 30 inside the main housing 10 while simultaneously pressing the second portion 34 inward towards the heat exchanger core 20 to define the pressing configuration of the second portion 34 and the gripping configuration of the internal housing 30. The guide ways 39 instead of being formed on the outside of the second portion 34 may be formed on the outside wall of the internal housing 30 as illustrated in FIG. 7a, such that the guide ways 39 receive therein complementary elements configured on the inside wall of the main housing 10 to facilitate only guiding of the internal housing 30 inside the main housing 10. However, the present invention is not limited to any particular configuration, number and placement of the guide ways 39, 19 as far as the guide ways 39, 19 are complimentary to the first shaped elements 36, 16 and facilitates guiding of the internal housing 30 inside the main housing 10.

[0040] In one embodiment of the present invention, the main housing 10 includes a top cover 10a and a bottom portion 10b. The top cover 10a is releasably attached to the bottom portion 10b. As illustrated in FIG. 4 and FIG.5, the bottom portion 10b is configured with engaging elements such as for example slots 17 that are complimentary to and receives therein corresponding engagement elements in the form of clips 50 configured on the top cover 10a to assemble the top cover 10a to the bottom portion 10b. Alternatively, as illustrated in FIG. 8, the top cover 10a is configured with slots 17a that are complimentary to and receives therein the corresponding clips 50a configured on the bottom portion 10b to assemble the top cover 10a to the bottom portion 10b. However, the present invention is not limited to any particular configuration of engaging elements configured on the top cover 10a and the bottom portion 10b as long as the engagement elements configure releasable attachment of the top cover 10a to the bottom portion 10b.

[0041] The system 100 further includes a retaining arrangement configured between the internal housing 30 and the main housing 10. The retaining arrangement retains the internal housing 30 within the main housing 10, thereby causing the second portion 34 to be pressed inwards by the first shaped elements 16, 36 and maintaining the second portion 34 in the pressing configuration thereof and the internal housing 30 in the gripping configuration thereof. Particularly, the retaining arrangement includes second shaped elements 18 configured on at least one of the top cover 10a and the bottom portion 10b. The second shaped elements 18 extend from the top cover 10a and interact with the thinner parts of the second portions 34 to further press the second portions 34 against the heat exchanger core 20 received therein when at least a pre-determined portion of the internal housing 30 is received in the main housing 10 and the top cover 10a is mounted on the bottom portion 10b. With such configuration, thinner parts of the second portions 34 that extend beyond the periphery of the internal housing 30, more specifically, the parts of the second portions 34 that extend beyond the first portion 32 are further pressed against the heat exchanger core 20 to enable the internal housing 30 to further grip the heat exchanger core 20. In the assembled configuration of the top cover 10a on the bottom portion 10b, the thinner parts of second portions 34 are pressed by the second shaped elements 18, the thinner parts of the second portion 34 also exert reaction forces on the second shaped elements 18 to push the top cover 10a upwards. Accordingly, the clearances that occur between the clips and the housing 10 to facilitate accommodation of different heights of the heat exchanger core 20 are eliminated, when the top cover 10a is assembled to the bottom portion 10b of the housing 10. Further, the retaining arrangement allows to mitigate play between the cover and the bottom portion.

[0042] In one example, the first shaped elements 36, 16 engages with the complimentary second shaped elements 18 to retain at least the pre determined portion of the internal housing 30 within the main housing 10, thereby causing pressing of the second portion inwards towards the heat exchanger core 20 and maintaining the second portion 34 in the pressing configuration thereof and the internal housing 30 in the gripping configuration thereof. In accordance with an embodiment of the present invention illustrated in FIG. 9, the second shaped element 18 engages with complimentary latching element 38 configured on outside wall of the internal housing 30 to retain at least the pre determined portion of the internal housing 30 within the main housing 10, thereby causing the first shaped element 16 to press the second portion 34 inwards toward the and heat exchanger core 20 and maintaining the second portion 34 in the pressing configuration thereof and internal housing 30 in the gripping configuration thereof.

[0043] Several modifications and improvement might be applied by the person skilled in the art to the system for arresting movement of a heat exchanger core as defined above, as long as the system comprises a main housing, an internal housing and a pressing arrangement. The internal housing is located in the main housing and receives the heat exchanger core. The internal housing includes a first portion and a second portion. The second portion is displaceable with respect to the first portion. The pressing arrangement is configured between the second portion and the main housing. The pressing arrangement presses the second portion against the heat exchanger core, when at least a predetermined portion of the internal housing is received in the main housing.

[0044] In any case, the invention cannot and should not be limited to the embodiments specifically described in this document, as other embodiments might exist. The invention shall spread to any equivalent means and any technically operating combination of means.

Claims

1. A system (100) for arresting movement of a heat exchanger core (20), comprising:

• a main housing (10),

• an internal housing (30), located in the main housing (10) and adapted to receive the heat exchanger core (20), the internal housing (30) comprising:

∘ a first portion (32); and

∘ a second portion (34) that is adapted to be displaceable with respect to the first portion (32),

wherein the system further comprises a pressing arrangement configured between the second portion (34) and the main housing (10), the pressing arrangement being adapted to press the second portion (34) against the heat exchanger core (20) when at least a pre-determined portion of the internal housing (30) is received in the main housing (10).

2. The system (100) according to the claim 1, wherein the pressing arrangement comprises first shaped elements (36) configured on an outer wall of the second portion (34) and adapted to interact with an inner wall of the main housing (10) to press the second portion (34) against the heat exchanger core (20) when at least a pre-determined portion of the internal housing (30) is received in the main housing (10) .

3. The system (100) according to the claim 2, wherein the first shaped elements (36) are having a profile that is converging towards a base (30b) of the internal housing (30).

4. The system (100) according to any of the preceding claims, wherein the second portion (34) is thinner than the first portion (32).

5. The system (100) according to any of the preceding claims, wherein the internal housing (30) comprises a plurality of slots (40) configured to facilitate inward movement of the second portion (34) relative to the first portion (32), when at least a pre-determined portion of the internal housing (30) is received in the main housing (10).

6. The system (100) according to claim 1, wherein at least a part of the second portion (34) is adapted to extend above a periphery of the internal housing (30).

7. The system (100) according to claim 6, wherein the part of the second portion (34) extending above the periphery of the internal housing (30) is comparatively thinner than remaining of the second portion (34).

8. The system (100) according to any of the preceding claims, the pressing arrangement is configured on at least two opposite sides of the heat exchanger core (20).

9. The system (100) according to claim 2, wherein the first shaped elements (36) are adapted to be received in complimentary guide ways configured on the inner wall of the main housing (10).

10. The system (100) according to any of the preceding claims, wherein the main housing (10) comprises a top cover (10a) and a bottom portion (10b).

11. The system (100) according to claim 10, wherein the top cover (10a) is releasably attached to the bottom portion (10b).

12. The system (100) according to claim 11, wherein the bottom portion (10b) is configured with slots (17) that are complimentary to and adapted to receive corresponding clips (50) configured on the top cover (10a) to assemble the top cover (10a) to the bottom portion (10b).

13. The system (100) according to the claim 6 further comprising a retaining arrangement configured between the internal housing (30) and the main housing (10), the retaining arrangement being adapted to retain a predetermined portion of the internal housing (30) within the main housing (10) and as such facilitate gripping of the heat exchanger core (20) by the internal housing (30).

14. The system (100) according to the claim 13, wherein the retaining arrangement comprises second shaped elements (18), which are configured on at least one of the top cover (10a) and the bottom portion (10b).

15. The system (100) as claimed in the claim 13 or 14, wherein the second shaped elements (18) are adapted to extend from the top cover (10a) and are adapted to interact with the thinner parts of the second portions (34) to further press the second portions (34) against the heat exchanger core (20) received therein when the top cover (10a) is assembled onto the bottom portion (10b).

16. The system (100) as claimed in claim 13 or 14, wherein the first shaped element (36, 16) is adapted to engage with the complimentary second shaped element (18) to further press the second portions (34) against the heat exchanger core (20) received therein when the top cover (10a) is assembled onto the bottom portion (10b).

17. The system (100) as claimed in claim 13 or 14, wherein the second shaped element (18) is adapted to engage with complimentary latching element (38) configured on the internal housing (30) to retain at least the pre determined portion of the internal housing (30) within the main housing (10) .

Drawing