Claims
- 1. A heat exchanger comprising:a plate extending longitudinally; a manifold extending longitudinally and disposed adjacent the plate, said manifold having a single first aperture forming a fluid inlet and a single second aperture forming a fluid outlet spaced laterally from said first aperture, said first aperture and said second aperture being disposed at one longitudinal end of said manifold; and a mechanism forming a restriction to fluid flow through either one of said fluid inlet and said fluid outlet comprising either one of said first aperture and said second aperture having a size less than the other one of said first aperture and said second aperture.
- 2. A heat exchanger as set forth in claim 1 wherein said first aperture and said second aperture each have a generally circular cross-sectional shape.
- 3. A heat exchanger comprising:a plurality of generally parallel plates, pairs of said plates being joined together in a face-to-face relationship to provide a channel therebetween, the pairs of said plates being joined together and aligned in a stack; a plurality of fins attached to an exterior of said plates and disposed between each pair of said joined plates; and a manifold extending longitudinally and disposed at one end of the stack having a single first aperture forming a fluid inlet and a single second aperture forming a fluid outlet spaced laterally from said first aperture, said first aperture and said second aperture being disposed at one longitudinal end of said manifold, and a mechanism forming a restriction to fluid flow through either one of said fluid inlet and said fluid outlet comprising either one of said first aperture and said second aperture having a size less than the other one of said first aperture and said second aperture.
- 4. A heat exchanger as set forth in claim 3 wherein said first aperture and said second aperture each have a generally circular cross-sectional shape.
- 5. A method of making a heat exchanger comprising the steps of:providing a plate extending longitudinally; providing a manifold extending longitudinally to be disposed adjacent the plate and forming a single first aperture in the manifold as a fluid inlet and forming a single second aperture as a fluid outlet spaced laterally from the first aperture, the first aperture and the second aperture being disposed at one longitudinal end of the manifold; and forming a restriction to fluid flow through either one of the fluid inlet or the fluid outlet by forming either one of the first aperture or the second aperture with a size less than the other one of the first aperture or the second aperture.
- 6. A method as set forth in claim 5 wherein said step of forming comprises forming the first aperture and the second aperture with a generally circular cross-sectional shape.
- 7. A method of making a heat exchanger comprising the steps of:providing a plurality of generally parallel plates, pairs of the plates being joined together in a face-to-face relationship to provide a channel therebetween, the pairs of the plates being joined together and aligned in a stack; providing a manifold extending longitudinally having a single first aperture as a fluid inlet and a single second aperture as a fluid outlet spaced laterally from the first aperture, the first aperture and the second aperture being disposed at one longitudinal end of the manifold; providing a restriction in either one of the fluid inlet and fluid outlet by forming either one of the first aperture or the second aperture with a size less than the other one of the first aperture or the second aperture and disposing the manifold at either end of the stack; providing a plurality of fins to be attached to an exterior of the plates and disposing the fins between each pair of the joined plates; and joining the fins and pairs of joined plates and manifold together to form the heat exchanger.
- 8. A method as set forth in claim 7 wherein said step of forming comprises forming the first aperture and the second aperture with a generally circular cross-sectional shape.
Parent Case Info
This application is a Division of application Ser. No. 09/470,383 filed on Dec. 22, 1999 now U.S. Pat. No. 6,338,383.
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