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A heat exchanger suitable for a vehicle includes a plurality of tubular first members arranged in a row and forming elongate gaps. These members form passageways for flow of a first fluid for heat exchange with cooling air flowing through the gaps. The first members and gaps form a primary heat exch

A heat exchanger suitable for a vehicle includes a plurality of tubular first members arranged in a row and forming elongate gaps. These members form passageways for flow of a first fluid for heat exchange with cooling air flowing through the gaps. The first members and gaps form a primary heat exchange area. Inlet and outlet manifolds are connected to the first members for directing the first fluid through the first members. An associated cooling device circulates liquid coolant and comprises flat tube-like second members, each extending into a respective gap in a secondary area which is part of the primary area but smaller. The second members each have a thickness at least the width of their respective gaps. At least some of the first members can be formed with cut-outs in opposite flat sides, these cut-outs being sealingly closed by the second members.

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1. A heat exchanger comprising: a plurality of tube-like first members having respective first inlet and first outlet distal end portions defining respective first inlet and first outlet openings, said first members being spaced-apart from one another so that a series of elongate gaps are formed bet

1. A heat exchanger comprising: a plurality of tube-like first members having respective first inlet and first outlet distal end portions defining respective first inlet and first outlet openings, said first members being spaced-apart from one another so that a series of elongate gaps are formed between the first members, said first members forming a plurality of first passageways for flow of a first fluid in heat exchange relationship with cooling air flowing through said gaps during use of said heat exchanger, said first members and said elongate gaps forming a primary heat exchange area having a length extending at least most of the length of one of the first members and a width equal to the total of the heights of said first members and the widths of said gaps;opposed inlet and outlet manifold members connected respectively to said first inlet and outlet distal end portions, said inlet manifold being adapted to receive said first fluid and conduct said first fluid to said first inlet openings, said outlet manifold being adapted to receive the first fluid which has been cooled by said cooling air;a plurality of tube-like second members arranged in a row and having end portions defining second inlet and second outlet openings, all of said second inlet openings being joined and all of said second outlet openings being joined so as to form respectively a second inlet manifold and a second outlet manifold, said second inlet manifold being adapted to receive a liquid coolant and conduct said liquid coolant to a plurality of second passageways formed by said second members, said second outlet manifold being adapted to receive said liquid coolant from said second passageways;said second members including two outer second members located at opposite ends of the row and intermediate second members located between said outer second members, at least said intermediate second members each extending into a respective one of said elongate gaps for heat exchange between said first fluid and said liquid coolant,wherein said second members fill a portion only of said gaps, said portion extending over a secondary heat exchange area which is part of said primary heat exchange area. 2. A heat exchanger according to claim 1 wherein said gaps have cooling fins mounted therein and arranged to permit said cooling air to flow through said gaps and along said fins, said fins being arranged over at least most of the length and width of said primary heat exchange area excluding said secondary heat exchange area. 3. A heat exchanger according to claim 2 wherein at least said intermediate second members each extend into their respective gaps at end sections of the gaps located adjacent one end of the heat exchanger, said secondary heat exchange area having one dimension substantially equal to the width of said primary heat exchange area, said one dimension extending in the widthwise direction of the primary heat exchange area. 4. A heat exchanger according to claim 2 wherein at least said intermediate second members each extend into their respective gaps along at least most of the lengths of the gaps and at least two of the elongate gaps have no second members extending into them. 5. A heat exchanger according to claim 2 wherein each of said inlet and outlet manifolds comprises an elongate, generally U-shaped channel that envelopes the adjacent distal end portions of the tube-like first members and end caps that close opposite open ends of the U-shaped channel to complete the manifold and wherein said first fluid is charge air. 6. A heat exchanger according to claim 2 wherein each first member forms a generally flat tube and comprises a pair of elongate plates sealingly joined together along their longitudinal edges, the first passageway of the first member being formed between the two joined longitudinal edges. 7. A heat exchanger according to claim 6 wherein each second member forms a generally flat tube and comprises a pair of plates sealingly joined together about their peripheral edges, each plate of said pair being formed with two short, annular extensions, and wherein each pair of annular extensions formed on said second members are mated with and joined to adjacent annular extensions of an adjacent second member to form said second inlet and outlet manifolds. 8. A heat exchanger according to claim 1 wherein at least a portion of said first members are each formed with two cut-outs in opposite flat sides thereof, said cut-outs being formed where said second members extend into said elongate gaps and being sealingly closed by adjacent sides of the second members. 9. A heat exchanger according to claim 8 wherein said second passageways formed by the second members are U-shaped so that each second passageway has two parallel passage sections which are separated by an interior baffle, and wherein said second inlet and outlet manifolds are both located on one side of the heat exchanger. 10. A heat exchanger according to claim 8 wherein said second passageways formed by the second members are straight between said second inlet and second outlet openings so that said second inlet and second outlet manifolds are located on opposite sides of the portion of the heat exchanger formed by said tube-like first members. 11. A charge air cooler for vehicles, comprising: a plurality of first members forming a row of tubes which are spaced-apart from one another and parallel so that a series of elongate gaps are formed between and are defined by the first members, said first members forming a plurality of first passageways for flow of charge air in heat exchange relationship with cooling air flowing through said gaps during use of said heat exchanger, said first members and said gaps forming a primary heat exchange area having a first length extending at least most of the length of one of said first members and a first width;a first inlet manifold extending along one end of the air cooler and fluidly connected to adjacent first ends of the first members to direct charge air flow into said first passageways;a first outlet manifold extending along an opposite end of the air cooler and fluidly connected to adjacent second ends of the first members to receive said charge air flow from said first passageways; andan associated cooling device for circulating a liquid coolant for heat exchange between said liquid coolant and said flow of charge air through said first passageways, said cooling device including tube-like second members each extending into a respective one of said elongate gaps in a secondary heat exchange area which has a second length extending in the direction of said first length and a second width extending in the same direction as said first width and is part of said primary heat exchange area, said secondary heat exchange area being defined by at least one of the following two requirements: (i) the second length being substantially less than the first length;(ii) the second width being substantially less than the first width of the primary heat exchange area,wherein a substantial portion of the areas of said gaps bound by said primary heat exchange area remain open for flow of said cooling air. 12. A charge air cooler according to claim 11 wherein the second length of said secondary heat exchange area is substantially equal to said first length of the primary heat exchange area and the second width of said secondary heat exchange area is substantially less than the first width of the primary heat exchange area. 13. A charge air cooler according to claim 11 wherein the second width of the secondary heat exchange area is substantially equal to the first width of the primary heat exchange area and the second length of the secondary heat exchange area is substantially less than half the first length of the primary heat exchange area. 14. A charge air cooler according to claim 11 wherein said tube-like second members are generally flat tubes each having a thickness at least as great as the width of the individual gaps so that each second member fills the respective gap into which the second member extends in the widthwise direction of the gap. 15. A charge air cooler according to claim 11 wherein said first members are generally flat tubes having two opposite flat sides and at least a portion of said first members are formed with cut-outs formed in said flat sides and located in said secondary heat exchange area, said cut-outs being sealingly closed by flat sides of the second members. 16. A heat exchanger suitable for a vehicle, comprising: a plurality of generally flat, tubular, first members arranged in a row and forming a series of elongate gaps which are defined by and extend between the first members, said first members providing a series of first passageways for flow of a first fluid in heat exchange relationship with cooling air flow flowing through said gaps during use of said heat exchanger, said first members and said gaps forming a primary heat exchanger area having a length extending at least most of the length of one of the first members and a width substantially equal to the total of the widths of said gaps and the thicknesses of the first members;a first inlet manifold extending along one end of the heat exchanger and fluidly connected to adjacent first ends of the first members to direct first fluid flow into said first passageways;a first outlet manifold extending along an opposite end of the heat exchanger and fluidly connected to adjacent second ends of the first members to receive said first fluid flow from said first passageways; andan associated cooling device for circulating a liquid coolant for heat exchange between said liquid coolant and said flow of first fluid through said first passageways, said cooling device including generally flat, tube-like second members each extending into a respective one of said elongate gaps in a secondary heat exchange area, which is part of said primary heat exchange area and substantially smaller than said primary heat exchange area, said second members each having a thickness at least as large as the width of their respective gaps so that each second member fills its respective gap in the widthwise direction of the gap. 17. A heat exchanger according to claim 16 wherein at least a portion of said first members are formed with cut-outs in opposite flat sides of these first members, said cut-outs being located in said secondary heat exchange area and sealingly closed by flat sides of the second members. 18. A heat exchanger according to claim 17 wherein said gaps have cooling fins mounted therein and arranged to permit said cooling air to flow through said gaps and along said fins, said fins being arranged over a major portion of said length of the primary heat exchange area. 19. A heat exchanger according to claim 16 wherein said second members form respective second passageways for said liquid coolant, said second passageways are U-shaped so that each second passageway has two parallel passage sections which are separated by an interior baffle, said second members are formed with bubble extensions which are sealingly joined to form a second inlet manifold located at one end of the second passageways and a second outlet manifold for said liquid coolant located at an opposite end of the second passageways, and said second inlet and outlet manifolds are both located on one side of the heat exchanger. 20. A heat exchanger according to claim 18 wherein each second member comprises a pair of plates sealingly joined together about their peripheral edges, each plate of said pair being formed with two short, annular extensions, and wherein each pair of annular extensions formed on said second members are mated with and joined to adjacent annular extensions of an adjacent second member to form said second inlet and outlet manifolds.