GB1595598A - Heat exchanger having means to provide an air seal between itself and an adjacent casing part - Google Patents
Heat exchanger having means to provide an air seal between itself and an adjacent casing part Download PDFInfo
- Publication number
- GB1595598A GB1595598A GB4715977A GB4715977A GB1595598A GB 1595598 A GB1595598 A GB 1595598A GB 4715977 A GB4715977 A GB 4715977A GB 4715977 A GB4715977 A GB 4715977A GB 1595598 A GB1595598 A GB 1595598A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heat exchanger
- flexible
- sheet
- fin
- casing part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/08—Fastening; Joining by clamping or clipping
- F28F2275/085—Fastening; Joining by clamping or clipping with snap connection
Description
(54) HEAT EXCHANGER HAVING MEANS TO
PROVIDE AN AIR SEAL BETWEEN ITSELF
AND AN ADJACENT CASING PART
(71) We, SOCIETE ANONYME
DES USINES CHAUSSON, a Company duly organized under the laws of France, of 35, rue Malakoff, Asnieres, Hauts-de
Seine, France, do hereby declare the invention for which we pray that a patent may be granted to us and the method by which it is to be performed to be particularly described in and by the following statement:- This invention relates to a heat exchanger comprising means to provide an air seal between the heat exchanger and an adjacent casing part.
It is important that air having to pass through the core of a heat exchanger be correctly guided, particularly when the air has to be utilised for heating the inside of a vehicle.
Heat exchangers are generally mounted in casings or housings made of sheet metal or of plastics material and there necessarily exists a manufacture clearance for enabling the heat exchangers to be positioned; there exists thereby the chance that the air already heated or air to be heated can leak. Besides, it is important also that resilient elements to be interposed between the heat exchanger and the casing or housing containing it in order that vibrations do not cause repeated shocks between the rigid portions of the heat exchanger and of the casing or housing.
According to the present invention, there is provided a heat exchanger comprising means to provide an air seal between the heat exchanger and an adjacent casing part said means comprising a flexible sealing member having an anchoring portion, and recesses provided in the heat exchanger to receive the anchoring portion of the flexible member so that the flexible member is mounted to extend from the sides of the heat exchanger to bear against said adjacent casing part.
For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which: Figure 1 is a diagrammatic cross-sectional elevation illustrating part of a heat exchanger,
Figure la is an enlarged partial crosssectional elevation of a detail of Figure 1,
Figure 2 is a diagrammatic cross-section of a heat exchanger core illustrating another embodiment,
Figure 3 is a cross-sectional view similar to Figure 2 of a third embodiment,
Figure 3a is an enlarged elevation of a particular gasket shown in Figure 3,
Figures 4 and 4a are cross-sectional views similar to Figure 3a of a different form of gasket, and
Figures 5 and 6 are cross-sectional views illustrating two further embodiments.
In the drawings, reference numeral 1 designates circulation tubes of a heat exchanger for heating the inside of a vehicle and numeral 2 designates secondary heat exchanger elements in the form of fins fitted on the tubes 1. At their ends, the tubes 1 are engaged in end plates 3 covered with header boxes 4. The heat exchanger is mounted in the vehicle within a casing or housing diagrammatically shown at 5 which has a rear portion 6 in which an aperture 7 is made to allow the hot air to pass into the vehicle. The housing 5 also has longitudinal outer walls or partitions 8 between which the heat exchanger core is inserted.
In some cases, as shown in Figure 2, the longitudinal partitions 8 are not present. In other cases also the casing or housing 5 comprises only longitudinal partitions 8 which together define the aperture 7. In all these cases, it is necessary to channel the air flow, which can be blown in the direction of the arrow f, and has to pass through the heat exchanger to be heated, to ensure a good air tightness between the heat exchanger and the casing or housing 5 so that the heating be carried out correctly and without any leak.
In a well known way, the casing has a flap or other similar element 9 which is pivotally mounted on a pin 10 on a side of the casing 5, this flap being able to occupy either the position shown at 9 in Figure 1 so that the air can pass through the heat exchanger or the position shown at 9a in Figure 1 so that the air cannot pass through the heat exchanger. In order that the closing of the flap 9 be correct, it is important also that a good air-tightness exists between the heat exchanger and the flap 9 which is usually constituted by a simple metal plate or a plate made of plastics material.
To ensure the air tightness at least one flexible sealing member is provided and can be in the form of a flexible gasket. In Figure 1, the gaskets 11 are each constituted by a sheet of flexible material, typically rubber, which forms a skirt 12 at its periphery, the skirt 12 surrounding the end plate 3. The skirt 12 can be shaped to form a peripheral lip or rim 12a (Figure la) and, in such a case, the skirt 12 is shaped substantially as an arc of a circle to envelop at least partially, the periphery of the end plate 3.
To hold in place the sheet constituting the gasket 11, the sheet has sockets 13 which are engaged in the tube passages of the corresponding end plate 3. The sockets 13 each terminate in a rim 14 bearing on the side of the end plate which faces the inside of the header box 4. Thus the sheet 11 forms both means to ensure the seal tightness between the tubes and the end plates by means of the sockets 13, and means to ensure the air tightness with respect to the partitions 6, 8 and the flap 9 by means of the skirt 12 which surrounds the end plate.
The rims 14 hold the sheet 11 against the side of the end plate 3 which faces the fins 2, thus preventing any movement of the sockets 13 upon positioning the heat exchanger in the casing 5, upon the successive openings and closings of the flap 9 which causes the skirt 12 to be bent thus creating a force tending to move the sockets 13 of the first row of tubes 1, and upon the movements due to the heat expansion of the tubes inside the sockets 13.
Figure 2 shows sheets 11, with rectilinear lateral skirts 12,. As previously, the sheet Ili is made of rubber or of flexible plastics material and, in this embodiment, the sockets 13 are replaced by longitudinal ribs 14a 14b for example in the shape of the letter L which are introduced into notches 15a 15b made in the fins 2. The sheets 11, have a length which corresponds to the distance between the end plates 3, and they thereby form, on each side of the fins 2, side flanges tightly pressing by the skirts 12 against the transverse partition 6 while the other skirts 122 are used to ensure the air tightness with the flap 9 when it is raised in the position 9a.
According to Figure 3 and 3a, the sheet, now designated by 112 has lateral edges 16 formed by moulding, from which protrude rims 17. The edges 16 are extended by protruding lips 18 provided to penetrate in corresponding notches 19 formed in the edges of the fins 2. It is important, as shown in Figure 3, that the lateral edges 16 be formed by moulding to make with the sheet
112 an angle smaller than 90 , so that these edges are straightened up and clamp the sides of the fins when the lips 18 are placed in the notches 19.
Although this does not appear from the drawings, it is important also that the portion forming the rim 17 be made of a more flexible material than that forming the sheet 11 Figure 4 and 4a illustrate a further embodiment according to which the sheet 112 is replaced by a least one substantially Lshaped strip 113 comprising, as previously, an edge 16 with a lip 18 to enter the notches 19 of the fins 2. The edge 16 forms, as previously, the rim 17. In addition, a rib 20 is formed in the outer edge of strip 113 to enter a second set of notches 19a in the fins 2, as illustrated in Figure 4a, so that the rib 20 and the ridge 18 ensure an anchoring as previously described.
Figure 5 shows another embodiment according to which apertures 21 are formed in the fins 2, these apertures being for example hexagonal and opening on an edge of the fin by a narrower slot 22. The slot 22 is used to position a bar 23 from one side of which protrudes a rim 17 and from the other side of which protrude oblique retaining blades 24. Positioning this type of gasket is extremely simple since it only has to be engaged into the aperture 21 by pushing it through the slot 22 whereby the retaining blades 24 are slightly bent, whereafter the blades become separated so to occupy the position as represented. This arrangement further permits, while forming the aperture 21, the formation of at least a lug-spacer 25 from the punched-out material of the aperture, the spacer 25 ensuring a separation between the successive fins 2.
Figure 6 also illustrates another embodiment according to which the aperture made in the fin and shown at 21a communicates with an edge of the fin by a passage 22a. The aperture 21a is circular in shape and the gasket has a first tubular element 26 engaged in the apertures 21a and a second tubular element 27 connected to the element 26 by means of a continuous bar 23a. If desired, a locking pin 28 is engaged in the tubular element 26, which prevents any tearing out of the gasket.
The tubular element 27 can be of a circular cross-section as shown in full line or, on the contrary, of a flattened crosssection if it is desired that the gasket will protrude from each fin as shown in dashand-dot lines.
It will be appreciated that the various embodiments described above can be incorporated in a single heat exchanger.
WHAT WE CLAIM IS:
1. A heat exchanger comprising means to provide an air seal between the heat exchanger and an adjacent casing part, said means comprising a flexible sealing member having an anchoring portion, and recesses provided in the heat exchanger to receive the anchoring portion of the flexible member so that the flexible member is mounted to extend from the sides of the heat exchanger to bear against said adjacent casing part.
2. A heat exchanger as claimed in claim 1, wherein said recesses are constituted by tube passages in a tube end plate of the heat exchanger and wherein said flexible member is a flexible sheet which has sockets which engage in said tube passages, said sheet being held against the side of the end plate which faces secondary heat exchange elements of the heat exchanger and said sheet having a peripheral skirt which extends beyond the periphery of said end plate.
3. A heat exchanger as claimed in claim 2, wherein said skirt has peripheral lip shaped substantially as an arc of a circle at least partially to envelope the periphery of said end plate.
4. A heat exchanger as claimed in claim 1 or 2, wherein said sockets of said flexible sheet each terminate in a rim that is caused to bear on the sides of the end plate that faces away from said secondary heat exchange elements.
5. A heat exchanger as claimed in claim 2, 3 or 4, wherein said skirt extends around the whole periphery of said end plate.
6. A heat exchanger as claimed in claim 1, wherein said recesses are constituted by notches provided in edges of fins constituting secondary heat exchanger elements of the heat exchanger, a corresponding portion of said flexible sealing member being engaged in said notches.
7. A heat exchanger as claimed in claim 6, wherein said notches are substantially Lshaped and wherein said flexible sealing member is a sheet which has a rib around its periphery which constitutes said corresponding portion for engagement in said notches, the periphery of said sheet also being formed as a rim defining a skirt which extends beyond a said fin to rest against a wall, partition or flap of the casing.
8. A heat exchanger as claimed in claim 7, wherein said sheet that engages with said fin has lateral edges which make an angle of less than 90" with the plane of said sheet, said rib extending from one side of the lateral edge and said rim extending from the other side of said lateral edges.
9. A heat exchanger as claimed in claim 1, wherein said flexible sealing member is formed by a substantially L-shaped strip which has one edge having a rib for engagement in a corresponding notch in a fin constituting a secondary heat exchange element of the heat exchanger, and another edge which has a rib for engagement in another notch of said fin, one of these edges also having a flexible rim that is arranged to extend away from said fin to form a skirt to bear against said adjacent casing part.
10. A heat exchanger as claimed in claim 1 and comprising fins constituting secondary heat exchange elements, each of these fins having apertures which each open onto an edge of the film through a slot which is narrower than the greatest width of the aperture, said flexible sealing member being comprised by a bar from one side of which protrudes a flexible rim which is intended to extend from the sides of the heat exchanger to bear against said adjacent casing part, and from the other side of which bar extends said anchoring portion of the flexible member, this anchoring portion being intended to be engaged in a said aperture of the fin.
11. An apparatus as claimed in claim 10, wherein the potion of said flexible member forming said anchoring portion has oblique retaining blades for engagement in said aperture.
12. An apparatus as claimed in claim 10 or 11, wherein a locking pin is inserted in said anchoring portion.
13. An apparatus as claimed in claim 10, 11 or 12, wherein said apertures in the fins are each formed by punching out material, the material so-punched out forming a lugspacer for ensuring a separation between succcessive fins.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (15)
1. A heat exchanger comprising means to provide an air seal between the heat exchanger and an adjacent casing part, said means comprising a flexible sealing member having an anchoring portion, and recesses provided in the heat exchanger to receive the anchoring portion of the flexible member so that the flexible member is mounted to extend from the sides of the heat exchanger to bear against said adjacent casing part.
2. A heat exchanger as claimed in claim 1, wherein said recesses are constituted by tube passages in a tube end plate of the heat exchanger and wherein said flexible member is a flexible sheet which has sockets which engage in said tube passages, said sheet being held against the side of the end plate which faces secondary heat exchange elements of the heat exchanger and said sheet having a peripheral skirt which extends beyond the periphery of said end plate.
3. A heat exchanger as claimed in claim 2, wherein said skirt has peripheral lip shaped substantially as an arc of a circle at least partially to envelope the periphery of said end plate.
4. A heat exchanger as claimed in claim 1 or 2, wherein said sockets of said flexible sheet each terminate in a rim that is caused to bear on the sides of the end plate that faces away from said secondary heat exchange elements.
5. A heat exchanger as claimed in claim 2, 3 or 4, wherein said skirt extends around the whole periphery of said end plate.
6. A heat exchanger as claimed in claim 1, wherein said recesses are constituted by notches provided in edges of fins constituting secondary heat exchanger elements of the heat exchanger, a corresponding portion of said flexible sealing member being engaged in said notches.
7. A heat exchanger as claimed in claim 6, wherein said notches are substantially Lshaped and wherein said flexible sealing member is a sheet which has a rib around its periphery which constitutes said corresponding portion for engagement in said notches, the periphery of said sheet also being formed as a rim defining a skirt which extends beyond a said fin to rest against a wall, partition or flap of the casing.
8. A heat exchanger as claimed in claim 7, wherein said sheet that engages with said fin has lateral edges which make an angle of less than 90" with the plane of said sheet, said rib extending from one side of the lateral edge and said rim extending from the other side of said lateral edges.
9. A heat exchanger as claimed in claim 1, wherein said flexible sealing member is formed by a substantially L-shaped strip which has one edge having a rib for engagement in a corresponding notch in a fin constituting a secondary heat exchange element of the heat exchanger, and another edge which has a rib for engagement in another notch of said fin, one of these edges also having a flexible rim that is arranged to extend away from said fin to form a skirt to bear against said adjacent casing part.
10. A heat exchanger as claimed in claim 1 and comprising fins constituting secondary heat exchange elements, each of these fins having apertures which each open onto an edge of the film through a slot which is narrower than the greatest width of the aperture, said flexible sealing member being comprised by a bar from one side of which protrudes a flexible rim which is intended to extend from the sides of the heat exchanger to bear against said adjacent casing part, and from the other side of which bar extends said anchoring portion of the flexible member, this anchoring portion being intended to be engaged in a said aperture of the fin.
11. An apparatus as claimed in claim 10, wherein the potion of said flexible member forming said anchoring portion has oblique retaining blades for engagement in said aperture.
12. An apparatus as claimed in claim 10 or 11, wherein a locking pin is inserted in said anchoring portion.
13. An apparatus as claimed in claim 10, 11 or 12, wherein said apertures in the fins are each formed by punching out material, the material so-punched out forming a lugspacer for ensuring a separation between succcessive fins.
14. A heat exchanger as claimed in any
one of the preceding claims wherein the portion of said flexible sealing member that forms the part that is mounted to extend from the sides of the heat exchanger to bear against said adjacent casing part is made of a material that is more flexible than the material of said anchoring portion.
15. A heat exchanger comprising means to provide an air seal between the heat exchanger and an adjacent casing part, substantially as hereinbefore described with reference to any one of the embodiments shown in the acccompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7634684A FR2371660A1 (en) | 1976-11-18 | 1976-11-18 | DEVICE FOR ENSURING THE WATERPROOFING BETWEEN A RADIATOR AND A BOX OR ENCLOSURE CONTAINING IT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1595598A true GB1595598A (en) | 1981-08-12 |
Family
ID=9180033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4715977A Expired GB1595598A (en) | 1976-11-18 | 1977-11-11 | Heat exchanger having means to provide an air seal between itself and an adjacent casing part |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE860671A (en) |
| DE (1) | DE2750236A1 (en) |
| ES (1) | ES463983A1 (en) |
| FR (1) | FR2371660A1 (en) |
| GB (1) | GB1595598A (en) |
| IT (1) | IT1087246B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9975396B2 (en) | 2012-05-22 | 2018-05-22 | Mahle International Gmbh | Installation frame for heat exchanger |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2465986A1 (en) * | 1979-09-24 | 1981-03-27 | Ferodo Sa | Heat exchanger assembly with nest of tubes - has expansion chamber formed by separate vessel detachable from water tank |
| FR2484071B1 (en) * | 1980-06-05 | 1985-12-13 | Valeo | HOLE PLATE FOR A HEAT EXCHANGER WITH FLUID CIRCULATION TUBES |
| FR2529316B1 (en) * | 1982-06-29 | 1987-07-03 | Valeo | HEAT EXCHANGER, PARTICULARLY FOR A MOTOR VEHICLE, AND ITS SIDE SEALING DEVICE |
| DE8906837U1 (en) * | 1989-06-03 | 1989-08-10 | Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart, De | |
| DE19605909B4 (en) * | 1996-02-17 | 2007-06-06 | Behr Gmbh & Co. Kg | Heat exchanger |
| DE19654776C5 (en) * | 1996-12-31 | 2010-06-02 | Behr Gmbh & Co. Kg | Heating and / or air conditioning |
| FR2775766B1 (en) * | 1998-03-03 | 2000-05-05 | Valeo Thermique Moteur Sa | HEAT EXCHANGER WITH PROTECTED FINS, ESPECIALLY FOR MOTOR VEHICLES |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3165151A (en) * | 1962-04-09 | 1965-01-12 | Young Radiator Co | Heat-transfer trussed-radiator |
| FR2273222B1 (en) * | 1974-05-30 | 1977-10-07 | Chausson Usines Sa |
-
1976
- 1976-11-18 FR FR7634684A patent/FR2371660A1/en active Granted
-
1977
- 1977-11-09 BE BE6046211A patent/BE860671A/en not_active IP Right Cessation
- 1977-11-10 DE DE19772750236 patent/DE2750236A1/en active Granted
- 1977-11-10 ES ES463983A patent/ES463983A1/en not_active Expired
- 1977-11-11 GB GB4715977A patent/GB1595598A/en not_active Expired
- 1977-11-17 IT IT2978577A patent/IT1087246B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9975396B2 (en) | 2012-05-22 | 2018-05-22 | Mahle International Gmbh | Installation frame for heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2750236C2 (en) | 1987-08-06 |
| ES463983A1 (en) | 1978-06-16 |
| FR2371660A1 (en) | 1978-06-16 |
| BE860671A (en) | 1978-03-01 |
| DE2750236A1 (en) | 1978-05-24 |
| FR2371660B1 (en) | 1982-05-07 |
| IT1087246B (en) | 1985-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |