IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0140899
(2002-05-07)
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발명자
/ 주소 |
- Fang, Lei
- Hu, Zaiqian
- Bonnet, Pascal
- McKittrick, Jason W.
- Lorentz, Jay
- Baylor, David W.
- Domen, Daniel R.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
18 인용 특허 :
11 |
초록
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An improved heat exchanger for an automotive vehicle, comprising at least one end tank; and at least two heat exchangers including a plurality of spaced apart extruded metal tubes with fins between the spaced tubes. The heat exchangers are disposed so that their respective tubes and fins are general
An improved heat exchanger for an automotive vehicle, comprising at least one end tank; and at least two heat exchangers including a plurality of spaced apart extruded metal tubes with fins between the spaced tubes. The heat exchangers are disposed so that their respective tubes and fins are generally co-planar with each other and are connected to the end tank. In preferred embodiments, the heat exchanger may include a bypass element.
대표청구항
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1. A heat exchanger comprising:a first end tank;a second end tank opposite the first end tank;a plurality of first tubes in fluid communication with the first and second end tanks, the plurality of first tubes adapted to have a first fluid flow therethrough;a plurality of second tubes in fluid commu
1. A heat exchanger comprising:a first end tank;a second end tank opposite the first end tank;a plurality of first tubes in fluid communication with the first and second end tanks, the plurality of first tubes adapted to have a first fluid flow therethrough;a plurality of second tubes in fluid communication with the first and second end tanks, the plurality of second tubes adapted to have a second fluid, different from the first fluid, flow therethrough, wherein at least one of the plurality of second tubes has an internal passageway defined by at least one surface and the at least one surface is corrugated to include several patterned ridges; anda plurality of fins disposed between the first and second tubes, with the first and second tubes and the fins being generally co-planar relative to each other. 2. A heat exchanger as in claim 1 wherein the first end tank and the second end tank each include at least one baffle. 3. A heat exchanger as in claim 1 wherein the first tubes are larger than the second tubes. 4. A heat exchanger as in claim 1 wherein the first fluid is an oil and the second fluid is a refrigerant. 5. A heat exchanger as in claim 1 wherein the internal passageway is subdivided into a plurality of sub-passageways. 6. A heat exchanger as in claim 1 wherein each of the plurality of first tubes includes a passageway and the passageway includes partitions, which divide the passageway into at least one larger sub-passageway and at least one smaller sub-passageway such that the tube will perform a passive bypass function. 7. A heat exchanger as in claim 6 wherein the partitions include fins. 8. A heat exchanger comprising:a first end tank;a second end tank opposite the first end tank;a plurality of first extruded metal tubes in fluid communication with the first and second end tanks, and being adapted to have a first fluid flow there-through;a plurality of second extruded metal tubes in fluid communication with the first and second end tanks, and being adapted to have a second fluid, different from the first fluid, flow there-through; anda plurality of fins disposed between the first and second tubes, with the first and second tubes and the fins being generally co-planar relative to each other;wherein at least one of the first or second extruded metal tubes includes an interior wall structure including a partition adapted for subdividing the tube into a plurality of passageways within the tube, the partition including at least one fin; andwherein the interior wall structure is corrugated. 9. A heat exchanger as in claim 8 wherein the first end tank and the second end tank each include at least one baffle. 10. A heat exchanger as in claim 8 wherein the first tubes are larger than the second tubes. 11. A heat exchanger as in claim 8 wherein at least one of the plurality of passageways is stacked atop another of the plurality of passageways. 12. A heat exchanger as in claim 8 wherein at least one of the plurality of passageways is larger than another of the plurality of passageways for performing a passive bypass function. 13. A heat exchanger as in claim 8 wherein an insert is located in at least one of the plurality of passageways. 14. A heat exchanger for an automotive vehicle, comprising:at least one end tank; andat least three heat exchangers including a plurality of spaced apart metal tubes with fins between the spaced tubes;the heat exchangers being disposed so that their respective tubes and fins are generally co-planar with each other and are connected to the at least one end tank;the heat exchangers being selected from the group consisting of an oil heat exchanger, a condenser or combinations thereof;wherein the plurality of spaced apart metal tubes have a length and a hydraulic diameter and wherein a ratio of the length to the hydraulic diameter is between about 80 and about 1820. 15. A heat exchanger as in claim 14 wherein the at least one end tank includes at least one baffle. 16. A heat exchanger as in cl aim 14 wherein the ration of the oil cooler internal to external surface area is larger than the ratio of the condenser internal to external surface area. 17. A heat exchanger as in claim 14 wherein the length is between about 200 mm to about 1000 mm and the hydraulic diameter is between about 0.55 to about 2.50 mm. 18. A heat exchanger as in claim 14 wherein the at least one end tank includes a plurality of end tanks. 19. A heat exchanger as in claim 14 wherein at least one of the at least three heat exchangers includes a tube having an internal passageway defined by at least one surface and the at least one surface is corrugated. 20. A heat exchanger as in claim 19 wherein the at least one surface is corrugated to include several patterned ridges. 21. A heat exchanger as in claim 19 wherein the internal passageway is subdivided into a plurality of sub-passageways. 22. A heat exchanger for an automotive vehicle, comprising:a first heat exchanger;a second heat exchanger in generally co-planar relationship with the first heat exchanger;at least one end tank divided into an inlet portion and an outlet portion for the first heat exchanger, and being connected in fluid communication to both the first heat exchanger and the second heat exchanger;an inlet in fluid communication with the inlet portion of the first end tank;an outlet in fluid communication with the outlet portion of the first end tank;a plurality of heat exchanger tubes adapted for fluid flow therethrough in a first flow circuit in the first heat exchanger, at least one of the plurality of tubes in fluid communication with the inlet portion and a least one other of the plurality of tubes in fluid communication with the outlet portion; anda bypass element located on the exterior of the end tank and being adapted for providing a passageway at an intermediate location within the first flow circuit adapted for, at relatively low operating temperatures, intercepting a fluid in the first flow circuit to divert the fluid so that it avoids passing through the entire first flow circuit. 23. A heat exchanger as in claim 22 wherein the inlet, the outlet and the passageway of the bypass element are defined by a single member and the passageway provides fluid communication between the inlet and the outlet. 24. A heat exchanger as in claim 23 wherein the fluid flows through the inlet in a first direction and the passageway of the bypass element extends at least partially in a second direction opposite the first direction. 25. A heat exchanger as in claim 22 wherein the first heat exchanger is for an oil and the second heat exchanger is a condenser. 26. A heat exchanger as in claim 22 wherein the at least one end tank includes an X-shaped baffle. 27. A heat exchanger as in claim 22 wherein the bypass element includes a member and an actuator for selectively moving the member to substantially prohibit the fluid from flowing through the passageway of the bypass element. 28. A heat exchanger as in claim 27 wherein the actuator is a spring that applies a force to the member for prohibiting the fluid from flowing through the bypass element and wherein said force can be overcome by a pressure gradient that can be induced across the bypass when the fluid is relatively cool. 29. A heat exchanger for an automotive vehicle, comprising:a first heat exchanger;a second heat exchanger in generally co-planar relationship with the first heat exchanger;at least one end tank divided into an inlet portion and an outlet portion for the first heat exchanger, and being connected in fluid communication to both the first heat exchanger and the second heat exchanger;an inlet in fluid communication with the inlet portion of the first end tank;an outlet in fluid communication with the outlet portion of the first end tank;a plurality of heat exchanger tubes adapted for fluid flow therethrough in a first flow circuit in the first heat exchanger, at least one of the plurality of tubes in fluid communication with the inlet portion and a least one other of the plurality of tubes in fluid communication with the outlet portion;a bypass element located on the exterior of the end tank and being adapted for providing a passageway at an intermediate location within the first flow circuit adapted for inducing a pressure gradient, at relatively low operating temperatures, and intercepting a fluid in the first flow circuit to divert the fluid so that it avoids passing through the entire first flow circuit,wherein the bypass element includes a first passageway that is part of the inlet, and a second passageway that is part of the outlet, and a third passageway joining the first passageway and the second passageway. 30. A heat exchanger as in claim 29 wherein the first passageway, the second passageway and the third passageway of the bypass element are defined by a single member and the passageway provides fluid communication between the inlet and the outlet. 31. A heat exchanger as in claim 29 wherein the fluid flows through the inlet in a first direction and the third passageway of the bypass element extends at least partially in a second direction opposite the first direction. 32. A heat exchanger as in claim 29 wherein the first heat exchanger is for an oil and the second heat exchanger is a condenser. 33. A heat exchanger as in claim 29 wherein the at least one end tank includes an X-shaped baffle. 34. A heat exchanger as in claim 29 wherein the bypass element includes a member and an actuator for selectively moving the member to substantially prohibit the fluid from flowing through the third passageway of the bypass element. 35. A heat exchanger as in claim 34 wherein the actuator is a spring that applies a force to the member for prohibiting the fluid from flowing through the bypass element and wherein said force can be overcome by the pressure gradient that can be induced across the bypass when the fluid is relatively cool. 36. A heat exchanger for an automotive vehicle, comprising:a first heat exchanger;a second heat exchanger in generally co-planar relationship with the first heat exchanger;at least one end tank divided into an inlet portion and an outlet portion for the first heat exchanger, and being connected in fluid communication to both the first heat exchanger and the second heat exchanger;an inlet in fluid communication with the inlet portion of the first end tank;an outlet in fluid communication with the outlet portion of the first end tank;a plurality of heat exchanger tubes adapted for fluid flow therethrough in a first flow circuit of the first heat exchanger, at least one of the plurality of tubes in fluid communication with the inlet portion and a least one other of the plurality of tubes in fluid communication with the outlet portion;a bypass element located on the exterior of the end tank and being adapted for providing a passageway at an intermediate location within the first flow circuit adapted for inducing a first pressure gradient, at relatively low operating temperatures, and intercepting a fluid in the first flow circuit to divert the fluid so that it avoids passing through the entire first flow circuit,wherein the bypass element includes a first passageway that is part of the inlet, and a second passageway that is part of the outlet, and a third passageway joining the first passageway and the second passageway; andfurther wherein, a protrusion is provided in the first passageway for inducing a second pressure gradient at the juncture of the first passageway and the third passageway. 37. A heat exchanger as in claim 36 wherein the first passageway, the second passageway and the third passageway of the bypass element are defined by a single member and the passageway provides fluid communication between the inlet and the outlet. 38. A heat exchanger as in claim 36 wherein the fluid flows through the inlet in a first direction and the third passageway of the bypass element extends at least partially in a second direc tion opposite the first direction. 39. A heat exchanger as in claim 36 wherein the at least one end tank includes an X-shaped baffle. 40. A heat exchanger as in claim 36 wherein the bypass element includes a member and an actuator for selectively moving the member to substantially prohibit the fluid from flowing through the third passageway of the bypass element. 41. A heat exchanger as in claim 40 wherein the actuator is a spring that applies a force to the member for prohibiting the fluid from flowing through the bypass element and wherein said force can be overcome by the pressure gradient that can be induced across the bypass when the fluid is relatively cool. 42. A heat exchanger comprising:a first end tank;a second end tank opposite the first end tank;a plurality of first tubes in fluid communication with the first and second end tanks, the plurality of first tubes adapted to have a first fluid flow therethrough;a plurality of second tubes in fluid communication with the first and second end tanks, the plurality of second tubes adapted to have a second fluid, different from the first fluid, flow therethrough, wherein at least one of the plurality of second tubes has an internal passageway defined by at least one surface and the at least one surface is corrugated; anda plurality of fins disposed between the first and second tubes, with the first and second tubes and the fins being generally co-planar relative to each otherwherein each of the plurality of first tubes includes a passageway and the passageway includes partitions, which divide the passageway into at least one larger sub-passageway and at least one smaller sub-passageway such that the tube will perform a passive bypass function. 43. A heat exchanger as in claim 42 further comprising a bypass element located on the exterior of the first end tank or the second end tank. 44. A heat exchanger as in claim 42 wherein the at least one surface is corrugated to include several patterned ridges. 45. A heat exchanger as in claim 42 wherein at least one of the first fluid and the second fluid is an oil and at least one of the first fluid and second fluid is a refrigerant. 46. A heat exchanger as in claim 42 wherein the first tubes are larger than the second tubes. 47. A heat exchanger comprising:a first end tank;a second end tank opposite the first end tank;a plurality of first extruded metal tubes in fluid communication with the first and second end tanks, and being adapted to have a first fluid flow there-through;a plurality of second extruded metal tubes in fluid communication with the first and second end tanks, and being adapted to have a second fluid, different from the first fluid, flow there-through; anda plurality of fins disposed between the first and second tubes, with the first and second tubes and the fins being generally co-planar relative to each other;wherein at least one of the first or second extruded metal tubes includes an interior wall structure including a partition adapted for subdividing the tube into a plurality of passageways within the tube;wherein at least one of the plurality of passageways is stacked atop another of the plurality of passageways; andwherein the interior wall structure is corrugated. 48. A heat exchanger as in claim 47 further comprising a bypass element located on the exterior of the first end tank or the second end tank. 49. A heat exchanger as in claim 47 wherein the interior wall structure is corrugated to include several patterned ridges. 50. A heat exchanger as in claim 47 wherein at least one of the first fluid and the second fluid is an oil and at least one of the first fluid and second fluid is a refrigerant. 51. A heat exchanger as in claim 47 wherein the first tubes are larger than the second tubes.
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