CA1169851A - Heat exchanger core resilient support and seal - Google Patents
Heat exchanger core resilient support and sealInfo
- Publication number
- CA1169851A CA1169851A CA000415180A CA415180A CA1169851A CA 1169851 A CA1169851 A CA 1169851A CA 000415180 A CA000415180 A CA 000415180A CA 415180 A CA415180 A CA 415180A CA 1169851 A CA1169851 A CA 1169851A
- Authority
- CA
- Canada
- Prior art keywords
- annular
- seal
- legs
- housing
- heat exchanger
- 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
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- Gasket Seals (AREA)
Abstract
Heat Exchanger Core Resilient Support and Seal Abstract A resilient annular seal is disclosed for easily positioning and resiliently, sealably supporting a heat exchanger core between a housing and cover of an aftercooler. The resilient annular seal has a generally U-shaped cross-sectional configuration which sealably contacts and supports the opposite sides of an annular bracket connected to the periphery of the heat exchanger core.
Description
.
Description Heat Exchanger Core Resilient Support and Seal Technical Field This invention relates generally to an aftercooler for a turbocharged internal combustion engine and more particularly to a resilient support and seal for easily positioning, resiliently supporting, and hermetically sealing a heat exchanger core in the aftercooler.
It is well known that the power output of an internal combustion engine may be increased by compressing the intake air with-a turbocharger and then cooling that compressed air with an aftercooler before the air enters the combustion cylinders to be combusted. An aftercooler is essentially a heat exchanger in which a coolant fluid is conducted through the aftercooler to absorb heat from the compressed intake air and thus create a denser air charge which releases a greater amount of energy upon combustion.
An aftercooler typically includes a heat exchanger core positioned within a housing and cover and defines an intermediate passageway through which the intake air must flow on its way from the turbocharger to the combustion cylinders. A number of designs have been proposed to support and hermetically seal the heat exchanger core in its housing. For example, in U.S. 3,091,228 issued to Maxwell on May 28, 1963 baffle plates, having outwardly facing support flanges, are secured to a heat exchanger core which is partially disposed in a cavity of an intake ~anifold.
Capscrews clamp the support flanges and a flat paper or asbestos gasket between a cover and the intake manifold.
r~
?, -Another approach is shown in U.S. 3,881,455 issued to selsanti on May 6, 1975 wherein a plurality of spaced, transversely-oriented support plates are secured along the length of the heat exchanger core.
The core is inserted through a side aperature of an intake manlfold wherein arcuate edges of the support plates slideably engage mating arcuate surfaces of the intake manifold sidewalls. Similarly, in U.S.
4,191,148 issued to Patel et al on March 4, 1980 the heat exchanger core also has a plurality of support plates whose opposite edges are bolted to a flange section of a lower housing. In Patel et al the core is hermetically sealed by a flat gasket which is clamped between the housing and cover by screws, whereas in Belsanti, seals are located at the longitudinal end portions of the intake manifold and clamped by a partition or end cap.
Though all of the above patents show the heat exchanger core of an aftercooler rigidly supported in its housing, a couple of problems can exist in this approach. First, the rigid support readily transmits engine and other external vibrations to the heat exchanger core. Such vibration may in time cause the heat exchanger core to leak engine coolant or mix coolant with intake air or allow loss of pressurized air to atmosphere and thus reduce the heat transfer efficienc~ of the aftercooler. Second, the rigid support is undesirable in an assembly where the heat exchanger core support flange or plates and the aftercooler housing are made of different materials having significantly different rates of thermal growth. For example, the support flange of a heat exchanger core is typically made of steel while it is often preferable to make the aftercooler housing out of a lighterweight material, such as aluminum, especially 4;~
~ 3_ for larger engines. Under these circumstances the rigid support does not resiliently and sealably accommodate the differential thermal growth or relative movement in the joint between itself and the housing and cover. Such differential thermal growth in the joint can induce stress, causing early failure of the core, or develop leakage paths for the pressurized air to escape to atmosphere which reduces the power output of the engine. Furthermore, the Besanti and Patel et al patents show a fairly intricate fit between the housing and the heat exchanger core support plates which requires relatively complex fabrication and time-consuming alignment during assembly.
The present invention is directed to overcoming one or more of the problems as set forth above.
Disclosure of the Invention In one aspect of the present invention an aftercooler is disclosed having a resilient support and seal means ~or easily positioning and resiliently and sealably supporting a heat exchanger core in its housing~ The resilient support and seal means includes an annular resilient seal, encircling the heat exchanger core, having a generally U-shaped cross-sectional configuration which sealedly contacts the opposite annular sides of an annular bracket connected to the periphery of a heat exchange core.
In another aspect of the present invention a resilient annular seal is disclosed having a generally U-shaped cross-sectional configuration defining inwardly extending first and second legs and a bight portion connecting the legs. Furthermore, the legs have mutually facing inner surfaces wherein at least 3~5~
-3a-one of the inner surfaces has at least one annular protuberance encircling the inner space which is enclosed by one of the annular legs.
Conventional heat exchange. cores for aftercoolers are rigidly supported in their housings and thus are prone to air or engine ~oolant leakage . . .
, caused by engine vibration or differential thermal growth in the support joint. The core with a resilient support and seal means which dampens and isolates vibrations from the core, and also accommodates differential thermal expansion in the support joint while simultaneously maintaining a hermetic seal about the core. Thus the heat transfer efficiency oE the aftercooler is preserved and such engine energy losses are prevented.
Brief Description of the Dra_ings Fig. 1 is a diagrammatic side elevation view of an aftercooler with a portion of the cover and housing broken away to show the heat exchanger core and annular resilient seal and illustrating one embodiment of the present invention;
Fig. 2 is an enlarged cross-sectional view of the aftercooler taken along line II-II of Fig. l; and Fig. 3 is an enlarged cross-sectional view of a portion of only the annular resilient seal in its free state.
Best Mode for Carrying Out the Invention Referring to Figs. 1 and 2, an aftercooler 10, also known as a heat exchanger or intercooler, is connected in series with a turbocharger 12 and an intake air cleaner 14 and also with the intake manifold (not shown) of an engine partially shown at 160 The aftercooler 10 includes a conventional heat exchanger 30 core 18, a cover 20 having an air inlet port 22, a housing 24 having an air outlet port 26, and resilient support and seal means ~8 for easily positioning and resiliently, sealably supporting the heat exchanger core 18 between the cover 20 and the housing 24. The construction of the basic heat exchanger core 18 is conventional and may, for example, be constructed , generally according to the disclosure in U.S. 3,703,925 issued to Ireland et al on November 28, 1972. On opposite ends of the core 18 are connected first and second engine-coolant headers 30,32. Moreover, engine-coolant inlet and outlet conduits 34,36 are connected to the first header 30.
The resilient support and seal means 28 includes a relatively-rigid oblongish annular bracket or rim 38 made of, for example, steel and a resilient oblongish annular seal 40 which fits over the opposite annular sides of the annular bracket 38. The annular bracket 38 has a couple of generally perpendicularly-extending support lips 42 and is connected to or integral with the longitudinal periphery of the core 18.
Referring to Fig. 3, the resilient annular seal 40 which is adapted to encircle the heat exchanger core 18 has a generally U-shaped cross-sectional configuration defining inwardly extending first and second legs 44,46 and a bight portion 48 connecting the legs. The seal 40 may, for example, be made of an ethylene propylene diene modified rubber with a durometer "A" hardness of about 65 to 75 in accordance with the Society of Automotive Engineering specification SAE J2000-2CA720A25B44C32. The legs 44,4 6 have oppositely facing substantially smooth outer surfaces 50,52 and mutually-facing inner surfaces 54,56 while the bight portion 48 has substantial.ly smooth outer and inner arcuate surfaces 53,60. In the 30 preferred embodiment shown in Figs. 1 and 2, each of the leg inner surfaces 54,56 has a plurality of concentrically -spaced oblongish annular protuberances 62 encircling the inner space which is enclosed by one of the annular legs 44,46 of the annular seal 40. The '~`
. ~P ,~
-5a-protuberances 62 have generally hemispherical cross-sectional configurations which sealably contact the opposite annular sides o~ the core bracket 38.
Alternatively~ at least one of the leg inner surfaces 54,56 has an oblongish annular protuberance 62 encircling the inner space which is enclosed by one of the annular legs 44,46 of the annular seal 40 and sealably contacting one annular side of the core bracket 38.
,, ~
As best shown in Fig. 2, the cover 20 and housing 24 each have integral annular flange portions 64,66 having substantially flat annular faces 68,70 ~hich mate when the cover 20 and housing 24 are ~ompletely assembled. In the preferred embodiment shown in Eigs. 1 and 2 an annular recess 72 is located on the inner side of the housing flange portion face 70. Alternatively, on the inner side of one or both of the ~aces 58,60 is an annular recess 72. The annular recess 72 is defined by an inner substantially-flat lower surface 74, which is substantially parallel to the face 68 of the cover flange portion 64 and an outer arcuate surface 76 which joins the lower surface 74 of the recess 72 with the face 70 of the housing flange portion 66.
In the preferred embodiment shown in Figs. 1 and 2, assembly of the aftercooler 10 is easily and quickly accomplished. First, with the core bracket 38 previously connected to the aftercooler core 18, the relatively slightly smaller resilient annular seal 40 is fitted securely about the core bracket 38 whereby the bight portion inner surface 60 of the seal 40 sealably contacts the periphery of the core bracket 38 and the annular protuberances 62 of the seal 40 sealably contact the opposite sides of the core bracket 38. Second, this subassembly is easily and quickly positioned in the housing 24 by lowering the core 18 partially into the housing 24 until the resilient annular seal 40 engages the annular recess 72 of the housing 24. Third, the cover 20 is placed over the housing 24 and core 18 so that the cover flange portion face 68 and the housing flange portion face 70 are clamped by bolts 78.
~, , .
Once the bolts 78 are tightened, the bight portion outer surface 58 and second leg outer surface 52 of the seal 40 resiliently and sealably contact the housing annular recess 72 at its arcuate surface 76 and recess lower flat surface 74, respectively, while the first leg outer surface 50 resiliently and sealably contacts the cover flange portion face 68. Moreover, the resilient annular seal 40 has a free height dimension h (Fig. 3) which is greater than the assembled spacing between the cover flange portion face 68 and the flat surface 74 o~ the housing annular recess 72 to provide a predetermined loading of the resilient annular seal 40 against the opposite sides of the annular core bracket 38. In the preferred embodiment the assembled spacing is about 20% less than the free height dimension h (Fig. 3) of the seal 40 thereby providing an adequately hermetically sealed yet resilient joint between the aftercooler core 18 and its housing 24 and cover 20. The predetermined loading on the resilient annular seal 40 assures that the aftercooler core 18 remains clamped in its preselected location for all temperature conditions.
Industrial Applicability ,~
Having provided a resilient support and seal means 28 for a heat exchanger core 18 of an aftercooler 10, the present invention solves the problems associated with a conventional rigid support.
In the embodiment shown in Figs. 1-3, the resilient support and seal means 28 easily positions and resiliently, sealably supports the heat exchanger core 18 between its housing 24 and its cover 20.
During engine operation, engine coolant at a temperature of, ~or example, about 91C (195 F) is circulated through the aftercooler 10 via inlet and 5~
outlet conduits 34,36. Pressurized intake air compressed by the turbocharger 12 en~ers the inlet port 22 o~ the cover 20 and is forced through the heat exchanger core 18 transferring heat to the core 18 and loweriny the temperature of the pressurized air, for example, from about 155C (311F) to about 93C
(200F). As the pressurized air passes through the heat exchanger core 18, it is prevented from escaping to atmosphere via the cover-core-housin~ oblongish annular joint by the resilient annular seal 40 which envelopes the annular core bracket 38 and is compressed and clamped between the cover flange portion face ~8 and the annular recess 72 of the housing 24. The pressurized and cooled intake air then passes through the outlet port 26 of the housing 24 and into the intake manifold of the engine 16.
Any differential thermal expansion or contraction between the core bracket 38, cover 20, or housing 24 is accommodated by the resilient annular seal 40 thereby maintaining a hermetically sealed joint which does not allow intake air leakage or thermal stress-induced damage to the core 18. The contact area between the protuberances 62 and the core bracket 38 is of a predetermined size to dampen and isolate vibrations from traveling between the engine 16 and the heat exchanger core 18. Furthermore, the preselected preloading imposed upon the resilient annular seal 40 assures that the aftercooler core 18 remains clamped in its preselected position for all temperature conditions.
Other aspects, objects, and advantages of this invention can be obtained from a study of the drawings, the disclosure, and the appended claims.
Description Heat Exchanger Core Resilient Support and Seal Technical Field This invention relates generally to an aftercooler for a turbocharged internal combustion engine and more particularly to a resilient support and seal for easily positioning, resiliently supporting, and hermetically sealing a heat exchanger core in the aftercooler.
It is well known that the power output of an internal combustion engine may be increased by compressing the intake air with-a turbocharger and then cooling that compressed air with an aftercooler before the air enters the combustion cylinders to be combusted. An aftercooler is essentially a heat exchanger in which a coolant fluid is conducted through the aftercooler to absorb heat from the compressed intake air and thus create a denser air charge which releases a greater amount of energy upon combustion.
An aftercooler typically includes a heat exchanger core positioned within a housing and cover and defines an intermediate passageway through which the intake air must flow on its way from the turbocharger to the combustion cylinders. A number of designs have been proposed to support and hermetically seal the heat exchanger core in its housing. For example, in U.S. 3,091,228 issued to Maxwell on May 28, 1963 baffle plates, having outwardly facing support flanges, are secured to a heat exchanger core which is partially disposed in a cavity of an intake ~anifold.
Capscrews clamp the support flanges and a flat paper or asbestos gasket between a cover and the intake manifold.
r~
?, -Another approach is shown in U.S. 3,881,455 issued to selsanti on May 6, 1975 wherein a plurality of spaced, transversely-oriented support plates are secured along the length of the heat exchanger core.
The core is inserted through a side aperature of an intake manlfold wherein arcuate edges of the support plates slideably engage mating arcuate surfaces of the intake manifold sidewalls. Similarly, in U.S.
4,191,148 issued to Patel et al on March 4, 1980 the heat exchanger core also has a plurality of support plates whose opposite edges are bolted to a flange section of a lower housing. In Patel et al the core is hermetically sealed by a flat gasket which is clamped between the housing and cover by screws, whereas in Belsanti, seals are located at the longitudinal end portions of the intake manifold and clamped by a partition or end cap.
Though all of the above patents show the heat exchanger core of an aftercooler rigidly supported in its housing, a couple of problems can exist in this approach. First, the rigid support readily transmits engine and other external vibrations to the heat exchanger core. Such vibration may in time cause the heat exchanger core to leak engine coolant or mix coolant with intake air or allow loss of pressurized air to atmosphere and thus reduce the heat transfer efficienc~ of the aftercooler. Second, the rigid support is undesirable in an assembly where the heat exchanger core support flange or plates and the aftercooler housing are made of different materials having significantly different rates of thermal growth. For example, the support flange of a heat exchanger core is typically made of steel while it is often preferable to make the aftercooler housing out of a lighterweight material, such as aluminum, especially 4;~
~ 3_ for larger engines. Under these circumstances the rigid support does not resiliently and sealably accommodate the differential thermal growth or relative movement in the joint between itself and the housing and cover. Such differential thermal growth in the joint can induce stress, causing early failure of the core, or develop leakage paths for the pressurized air to escape to atmosphere which reduces the power output of the engine. Furthermore, the Besanti and Patel et al patents show a fairly intricate fit between the housing and the heat exchanger core support plates which requires relatively complex fabrication and time-consuming alignment during assembly.
The present invention is directed to overcoming one or more of the problems as set forth above.
Disclosure of the Invention In one aspect of the present invention an aftercooler is disclosed having a resilient support and seal means ~or easily positioning and resiliently and sealably supporting a heat exchanger core in its housing~ The resilient support and seal means includes an annular resilient seal, encircling the heat exchanger core, having a generally U-shaped cross-sectional configuration which sealedly contacts the opposite annular sides of an annular bracket connected to the periphery of a heat exchange core.
In another aspect of the present invention a resilient annular seal is disclosed having a generally U-shaped cross-sectional configuration defining inwardly extending first and second legs and a bight portion connecting the legs. Furthermore, the legs have mutually facing inner surfaces wherein at least 3~5~
-3a-one of the inner surfaces has at least one annular protuberance encircling the inner space which is enclosed by one of the annular legs.
Conventional heat exchange. cores for aftercoolers are rigidly supported in their housings and thus are prone to air or engine ~oolant leakage . . .
, caused by engine vibration or differential thermal growth in the support joint. The core with a resilient support and seal means which dampens and isolates vibrations from the core, and also accommodates differential thermal expansion in the support joint while simultaneously maintaining a hermetic seal about the core. Thus the heat transfer efficiency oE the aftercooler is preserved and such engine energy losses are prevented.
Brief Description of the Dra_ings Fig. 1 is a diagrammatic side elevation view of an aftercooler with a portion of the cover and housing broken away to show the heat exchanger core and annular resilient seal and illustrating one embodiment of the present invention;
Fig. 2 is an enlarged cross-sectional view of the aftercooler taken along line II-II of Fig. l; and Fig. 3 is an enlarged cross-sectional view of a portion of only the annular resilient seal in its free state.
Best Mode for Carrying Out the Invention Referring to Figs. 1 and 2, an aftercooler 10, also known as a heat exchanger or intercooler, is connected in series with a turbocharger 12 and an intake air cleaner 14 and also with the intake manifold (not shown) of an engine partially shown at 160 The aftercooler 10 includes a conventional heat exchanger 30 core 18, a cover 20 having an air inlet port 22, a housing 24 having an air outlet port 26, and resilient support and seal means ~8 for easily positioning and resiliently, sealably supporting the heat exchanger core 18 between the cover 20 and the housing 24. The construction of the basic heat exchanger core 18 is conventional and may, for example, be constructed , generally according to the disclosure in U.S. 3,703,925 issued to Ireland et al on November 28, 1972. On opposite ends of the core 18 are connected first and second engine-coolant headers 30,32. Moreover, engine-coolant inlet and outlet conduits 34,36 are connected to the first header 30.
The resilient support and seal means 28 includes a relatively-rigid oblongish annular bracket or rim 38 made of, for example, steel and a resilient oblongish annular seal 40 which fits over the opposite annular sides of the annular bracket 38. The annular bracket 38 has a couple of generally perpendicularly-extending support lips 42 and is connected to or integral with the longitudinal periphery of the core 18.
Referring to Fig. 3, the resilient annular seal 40 which is adapted to encircle the heat exchanger core 18 has a generally U-shaped cross-sectional configuration defining inwardly extending first and second legs 44,46 and a bight portion 48 connecting the legs. The seal 40 may, for example, be made of an ethylene propylene diene modified rubber with a durometer "A" hardness of about 65 to 75 in accordance with the Society of Automotive Engineering specification SAE J2000-2CA720A25B44C32. The legs 44,4 6 have oppositely facing substantially smooth outer surfaces 50,52 and mutually-facing inner surfaces 54,56 while the bight portion 48 has substantial.ly smooth outer and inner arcuate surfaces 53,60. In the 30 preferred embodiment shown in Figs. 1 and 2, each of the leg inner surfaces 54,56 has a plurality of concentrically -spaced oblongish annular protuberances 62 encircling the inner space which is enclosed by one of the annular legs 44,46 of the annular seal 40. The '~`
. ~P ,~
-5a-protuberances 62 have generally hemispherical cross-sectional configurations which sealably contact the opposite annular sides o~ the core bracket 38.
Alternatively~ at least one of the leg inner surfaces 54,56 has an oblongish annular protuberance 62 encircling the inner space which is enclosed by one of the annular legs 44,46 of the annular seal 40 and sealably contacting one annular side of the core bracket 38.
,, ~
As best shown in Fig. 2, the cover 20 and housing 24 each have integral annular flange portions 64,66 having substantially flat annular faces 68,70 ~hich mate when the cover 20 and housing 24 are ~ompletely assembled. In the preferred embodiment shown in Eigs. 1 and 2 an annular recess 72 is located on the inner side of the housing flange portion face 70. Alternatively, on the inner side of one or both of the ~aces 58,60 is an annular recess 72. The annular recess 72 is defined by an inner substantially-flat lower surface 74, which is substantially parallel to the face 68 of the cover flange portion 64 and an outer arcuate surface 76 which joins the lower surface 74 of the recess 72 with the face 70 of the housing flange portion 66.
In the preferred embodiment shown in Figs. 1 and 2, assembly of the aftercooler 10 is easily and quickly accomplished. First, with the core bracket 38 previously connected to the aftercooler core 18, the relatively slightly smaller resilient annular seal 40 is fitted securely about the core bracket 38 whereby the bight portion inner surface 60 of the seal 40 sealably contacts the periphery of the core bracket 38 and the annular protuberances 62 of the seal 40 sealably contact the opposite sides of the core bracket 38. Second, this subassembly is easily and quickly positioned in the housing 24 by lowering the core 18 partially into the housing 24 until the resilient annular seal 40 engages the annular recess 72 of the housing 24. Third, the cover 20 is placed over the housing 24 and core 18 so that the cover flange portion face 68 and the housing flange portion face 70 are clamped by bolts 78.
~, , .
Once the bolts 78 are tightened, the bight portion outer surface 58 and second leg outer surface 52 of the seal 40 resiliently and sealably contact the housing annular recess 72 at its arcuate surface 76 and recess lower flat surface 74, respectively, while the first leg outer surface 50 resiliently and sealably contacts the cover flange portion face 68. Moreover, the resilient annular seal 40 has a free height dimension h (Fig. 3) which is greater than the assembled spacing between the cover flange portion face 68 and the flat surface 74 o~ the housing annular recess 72 to provide a predetermined loading of the resilient annular seal 40 against the opposite sides of the annular core bracket 38. In the preferred embodiment the assembled spacing is about 20% less than the free height dimension h (Fig. 3) of the seal 40 thereby providing an adequately hermetically sealed yet resilient joint between the aftercooler core 18 and its housing 24 and cover 20. The predetermined loading on the resilient annular seal 40 assures that the aftercooler core 18 remains clamped in its preselected location for all temperature conditions.
Industrial Applicability ,~
Having provided a resilient support and seal means 28 for a heat exchanger core 18 of an aftercooler 10, the present invention solves the problems associated with a conventional rigid support.
In the embodiment shown in Figs. 1-3, the resilient support and seal means 28 easily positions and resiliently, sealably supports the heat exchanger core 18 between its housing 24 and its cover 20.
During engine operation, engine coolant at a temperature of, ~or example, about 91C (195 F) is circulated through the aftercooler 10 via inlet and 5~
outlet conduits 34,36. Pressurized intake air compressed by the turbocharger 12 en~ers the inlet port 22 o~ the cover 20 and is forced through the heat exchanger core 18 transferring heat to the core 18 and loweriny the temperature of the pressurized air, for example, from about 155C (311F) to about 93C
(200F). As the pressurized air passes through the heat exchanger core 18, it is prevented from escaping to atmosphere via the cover-core-housin~ oblongish annular joint by the resilient annular seal 40 which envelopes the annular core bracket 38 and is compressed and clamped between the cover flange portion face ~8 and the annular recess 72 of the housing 24. The pressurized and cooled intake air then passes through the outlet port 26 of the housing 24 and into the intake manifold of the engine 16.
Any differential thermal expansion or contraction between the core bracket 38, cover 20, or housing 24 is accommodated by the resilient annular seal 40 thereby maintaining a hermetically sealed joint which does not allow intake air leakage or thermal stress-induced damage to the core 18. The contact area between the protuberances 62 and the core bracket 38 is of a predetermined size to dampen and isolate vibrations from traveling between the engine 16 and the heat exchanger core 18. Furthermore, the preselected preloading imposed upon the resilient annular seal 40 assures that the aftercooler core 18 remains clamped in its preselected position for all temperature conditions.
Other aspects, objects, and advantages of this invention can be obtained from a study of the drawings, the disclosure, and the appended claims.
Claims (12)
1. An aftercooler comprising:
a heat exchanger core having a generally annular bracket connected to its periphery;
a housing;
a cover; and resilient support and seal means for positioning and resiliently and sealedly supporting the core bracket between said cover and said housing, said resilient support means including a resilient annular seal encircling said heat exchanger core and having a generally U-shaped cross-sectional configuration defining first and second legs and a bight portion connecting said legs, said legs having oppositely facing outer surfaces positioned between and sealedly contacting said cover and housing, respectively, and mutually facing inner surfaces sealedly contacting the opposite annular sides of said core bracket.
a heat exchanger core having a generally annular bracket connected to its periphery;
a housing;
a cover; and resilient support and seal means for positioning and resiliently and sealedly supporting the core bracket between said cover and said housing, said resilient support means including a resilient annular seal encircling said heat exchanger core and having a generally U-shaped cross-sectional configuration defining first and second legs and a bight portion connecting said legs, said legs having oppositely facing outer surfaces positioned between and sealedly contacting said cover and housing, respectively, and mutually facing inner surfaces sealedly contacting the opposite annular sides of said core bracket.
2. The aftercooler, as set forth in claim 1, wherein one of said leg inner surfaces has an annular protuberance encircling said heat exchanger core and sealedly contacting one annular side of said core bracket.
3. The aftercooler, as set forth in claim 2 wherein the other of said leg inner surfaces has an annular protuberance encircling said heat exchanger core and sealedly contacting the other annular side of said core bracket.
4. The aftercooler, as set forth in claim 1, wherein each of said leg inner surfaces has a plurality of concentrically-spaced annular protuberances encircling said heat exchanger core and sealedly contacting the opposite annular sides of said core bracket.
5. The aftercooler, as set forth in claim 1, wherein the bight portion of said resilient annular seal envelopes the entire periphery of the annular core bracket and positions the heat exchanger core relative to the housing and cover.
6. The aftercooler, as set forth in claim 1, wherein said resilient annular seal, in its uncompressed state, has a free height dimension, extending directly between the leg outer surfaces, which is greater than the assembled spacing between the surfaces of the cover and housing, which sealedly contact said leg outer surfaces, to provide a predetermined loading of said resilient annular seal against said core bracket.
7. The aftercooler, as set forth in claim 1, wherein one of said cover and housing has an annular recess, said resilient annular seal being positioned in said annular recess.
8. The aftercooler, as set forth in claim 1, wherein said legs are inwardly extending about the bight portion of said annular seal.
9. A resilient annular seal having a generally U-shaped cross-sectional configuration defining inwardly extending first and second legs and a bight portion connecting said legs, said legs having oppositely facing outer surfaces and mutually facing inner surfaces, one of said inner surfaces having an annular protuberance encircling the inner space which is enclosed by one of the annular legs of the annular seal.
10. The seal, as set forth in claim 9, wherein the other of said inner surfaces has an annular protuberance encircling the inner space which is enclosed by one of the annular legs of the annular seal.
11. The seal, as set forth in claim 9, wherein each of said leg inner surfaces has a plurality of concentrically-spaced annular protuberances encircling the inner space which is enclosed by one of the annular legs of the annular seal.
12. A joint structure comprising:
a member having a generally annular rim connected to its periphery;
a housing;
a cover; and resilient support and seal means for positioning and resiliently and sealedly supporting the rim between said cover and said housing, said resilient support means including a resilient annular seal encircling said member and having a generally U-shaped cross-sectional configuration defining first and second legs and a bight portion connecting said legs, said legs having oppositely facing outer surfaces positioned between and sealedly contacting said cover and housing, respectively, and mutually facing inner surfaces sealedly contacting the opposite annular sides of said rim.
a member having a generally annular rim connected to its periphery;
a housing;
a cover; and resilient support and seal means for positioning and resiliently and sealedly supporting the rim between said cover and said housing, said resilient support means including a resilient annular seal encircling said member and having a generally U-shaped cross-sectional configuration defining first and second legs and a bight portion connecting said legs, said legs having oppositely facing outer surfaces positioned between and sealedly contacting said cover and housing, respectively, and mutually facing inner surfaces sealedly contacting the opposite annular sides of said rim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32915281A | 1981-12-10 | 1981-12-10 | |
| US329,152 | 1981-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1169851A true CA1169851A (en) | 1984-06-26 |
Family
ID=23284081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000415180A Expired CA1169851A (en) | 1981-12-10 | 1982-11-09 | Heat exchanger core resilient support and seal |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1169851A (en) |
-
1982
- 1982-11-09 CA CA000415180A patent/CA1169851A/en not_active Expired
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