A heat exchanger apparatus is provided wherein a multifluid or at least three-fluid heat exchanger is mounted externally to but in combination with a two-fluid heat exchanger. The multifluid heat exchanger includes three fluid passages or conduits wherein heat energy can be transferred efficiently b
A heat exchanger apparatus is provided wherein a multifluid or at least three-fluid heat exchanger is mounted externally to but in combination with a two-fluid heat exchanger. The multifluid heat exchanger includes three fluid passages or conduits wherein heat energy can be transferred efficiently between at least one of the fluid conduits and each of the other fluid conduits. The multifluid heat exchanger and two fluid heat exchanger are arranged so that the two heat exchangers share a common fluid, the multifluid heat exchanger, therefore, allowing heat transfer to or from the common fluid to the two other fluids in the multifluid heat exchanger thereby improving the overall heat transfer amongst the fluids.
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1. A heat exchanger system, comprising: a first heat exchanger, comprising: a first module comprised of a first spaced apart plate, a second spaced apart plate, a first intermediate plate, a second intermediate plate and a first module fin, wherein said first and second intermediate plates are back-
1. A heat exchanger system, comprising: a first heat exchanger, comprising: a first module comprised of a first spaced apart plate, a second spaced apart plate, a first intermediate plate, a second intermediate plate and a first module fin, wherein said first and second intermediate plates are back-to-back, identical to one another and different from said spaced apart plates, which themselves are identical, each of said intermediate plates having a plurality of alternating ribs and grooves, wherein said ribs of said back-to-back plates together form a first fluid conduit for a first fluid and said grooves of said individual intermediate plates together with said first and second intermediate plates form a second fluid conduit for a second fluid, wherein said first and second fluid conduits share a common wall, wherein said first spaced apart plate supports said fin directly thereon, said fin transverse to said first and second fluid conduits, said fin and at least said first spaced apart plate forming a third fluid conduit for a third fluid, said third fluid conduit transverse to said first fluid conduit and said second fluid conduit, wherein said first, second and third fluids are in thermal communication with one another through said plates, but not in fluid communication with one another and said fluids are different from one another;at least a second module, said second module comprised of a second module fin, identical to said first module fin, in direct contact with said second spaced apart plate of said first module and a second module first spaced apart plate to form a second module fluid conduit for said third fluid, said second module first spaced apart plate in direct contact with a second module first intermediate plate, said second module first spaced apart plate and said second module first intermediate plate together forming a second module second fluid conduit for said second fluid, said second module first intermediate plate in direct contact with a second module second intermediate plate, said second module intermediate plates being back-to-back and identical, each of said second module intermediate plates having a plurality of alternating ribs and grooves, wherein said ribs of said back-to-back plates together form a second module first fluid conduit for said first fluid; anda second heat exchanger, comprising a plurality of stacked tubular members defining a first set of flow channels and a second set of flow channels, wherein at least one of said same fluids in said first heat exchanger flows through said second heat exchanger. 2. The heat exchanger system according to claim 1, wherein the first heat exchanger having first heat exchanger first inlet and outlet manifolds in communication with the first fluid conduit in each of the heat exchange modules for the flow of the first fluid through the first heat exchanger and a first heat exchanger second inlet and outlet manifolds in communication with the second fluid conduit in each of the heat exchange modules for the flow of the second fluid through the first heat exchanger;the tubular members in the second heat exchanger each having respective inlet and outlet openings, the inlet and outlet openings in one tubular member being aligned with and in communication with the respective inlet and outlet openings of an adjacent tubular member to form inlet and outlet manifolds for the flow of the at least one of said fluids in said first heat exchanger through the second heat exchanger; andone of the inlet and outlet manifolds of the second heat exchanger is connected to and in fluid communication with the first heat exchanger first inlet or outlet manifold, or the first heat exchanger second inlet or outlet manifold. 3. The heat exchanger system according to claim 2, wherein the spaced-apart plates define inlet and outlet openings in communication with each of said first and second conduits. 4. The heat exchanger system according to claim 3, wherein the spaced-apart plates are formed with bosses defining the inlet and outlet openings. 5. The heat exchanger system according to claim 4, wherein the bosses extend outwardly, the bosses in adjacent heat exchange modules engaging to form flow the manifolds. 6. The heat exchanger system according to claim 2, wherein the inlet manifold of the second heat exchanger is connected to and in fluid communication with the first heat exchanger first inlet manifold. 7. The heat exchanger system according to claim 2, wherein the outlet manifold of the second heat exchanger is connected to and in fluid communication with the first heat exchanger first outlet manifold. 8. The heat exchanger system according to claim 2, wherein the inlet manifold of the second heat exchanger is connected to and in fluid communication with the first heat exchanger second inlet manifold. 9. The heat exchanger system according to claim 2, wherein the outlet manifold of the second heat exchanger is connected to and in fluid communication with the first heat exchanger second outlet manifold. 10. The heat exchanger system according to claim 2, wherein the inlet manifold of the second heat exchanger is connected to and in fluid communication with the first heat exchanger first outlet manifold. 11. The heat exchanger system according to claim 2, wherein the inlet manifold of the second heat exchanger is connected to and in fluid communication with the first heat exchanger second outlet manifold. 12. The heat exchanger system according to claim 2, wherein the outlet manifold of the second heat exchanger is connected to and in fluid communication with the first heat exchanger first inlet manifold. 13. The heat exchanger system according to claim 2, wherein the outlet manifold of the second heat exchanger is connected to and in fluid communication with the first heat exchanger second inlet manifold. 14. The heat exchanger system according to claim 1, wherein said second heat exchanger is a water-to-air plate and fin type heat exchanger. 15. The heat exchanger system according to claim 1, wherein said second heat exchanger is an oil-to-air plate and fin type heat exchanger. 16. The heat exchanger system according to claim 1, wherein said second heat exchanger is an alternating plate oil-to-water heat exchanger.
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