Heat exchanger and method of manufacturing the same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02B-047/00
F02B-047/08
F02M-025/07
F28F-003/02
F28F-009/00
F28F-009/02
F28F-013/06
F28F-019/00
F28D-007/16
F28F-001/02
F28D-021/00
출원번호
US-0623995
(2012-09-21)
등록번호
US-9309839
(2016-04-12)
발명자
/ 주소
Schatz, Harald
Daniel, Michael
Grotophorst, Thomas
Schernecker, Jeff
Hornback, Daniel
출원인 / 주소
Modine Manufacturing Company
대리인 / 주소
Michael Best & Friedrich LLP
인용정보
피인용 횟수 :
0인용 특허 :
67
초록▼
An exhaust gas recirculation cooler that includes an inlet tank, an outlet tank, and an exhaust gas flow conduit in fluid communication with the inlet tank and the outlet tank. The exhaust gas flow conduit includes a first end, a second end, a first narrow side, a second narrow side, a first channel
An exhaust gas recirculation cooler that includes an inlet tank, an outlet tank, and an exhaust gas flow conduit in fluid communication with the inlet tank and the outlet tank. The exhaust gas flow conduit includes a first end, a second end, a first narrow side, a second narrow side, a first channel adjacent the first narrow side and extending between the first end and the second end, a second channel adjacent the second narrow side and extending between the first end and the second end, and a plurality of third channels located between the first channel and the second channel and extending between the first end and the second end. At least one of the inlet tank and the outlet tank includes a wall that inhibits exhaust gas from flowing through the first channel while allowing exhaust gas flow through the plurality of third channels.
대표청구항▼
1. An exhaust gas recirculation cooler configured to cool exhaust gas from an engine, the exhaust gas recirculation cooler comprising: a plurality of coolant ports;an inlet tank configured to receive the exhaust gas from the engine;an outlet tank configured to direct the exhaust gas back toward the
1. An exhaust gas recirculation cooler configured to cool exhaust gas from an engine, the exhaust gas recirculation cooler comprising: a plurality of coolant ports;an inlet tank configured to receive the exhaust gas from the engine;an outlet tank configured to direct the exhaust gas back toward the engine;a plurality of exhaust gas flow conduits in fluid communication with the inlet tank and the outlet tank and arranged in spaced relation to allow coolant to pass over outer surfaces of the exhaust gas flow conduits, at least one of the plurality of exhaust gas flow conduits including a first end adjacent the inlet tank,a second end adjacent the outlet tank,a first narrow side,a second narrow side opposite the first narrow side,substantially flat broad sides extending between the first narrow side and the second narrow side,a first channel adjacent the first narrow side and extending between the first end and the second end,a second channel adjacent the second narrow side and extending between the first end and the second end, anda plurality of third channels located between the first channel and the second channel and extending between the first end and the second end; andwherein the inlet tank includes a wall that inhibits the exhaust gas from flowing through the first channel while allowing exhaust gas flow through the plurality of third channels, and wherein at least a portion of the first narrow side and at least a portion of the second narrow side each include at least a portion of the outer surfaces over which coolant is allowed to pass. 2. The exhaust gas recirculation cooler of claim 1, wherein the wall is a first wall, and wherein the inlet tank further includes a second wall, and wherein the second wall inhibits the exhaust gas from flowing through the second channel while allowing exhaust gas flow through the plurality of third channels. 3. The exhaust gas recirculation cooler of claim 2, wherein the first wall and the second wall are integrally formed as a single component with the inlet tank, wherein the first wall and the second wall each extend continuously from approximately the first end of the at least one exhaust flow conduit to an exhaust gas flow inlet port of the inlet tank. 4. The exhaust gas recirculation cooler of claim 1, wherein the wall is integrally formed as a single component with the inlet tank and is located at the first end of the exhaust gas flow conduit and extends continuously from approximately the first end of the at least one exhaust flow conduit to an exhaust gas flow inlet port of the inlet tank. 5. The exhaust gas recirculation cooler of claim 4, wherein the wall of the inlet tank includes a free edge adjacent the first end of the exhaust gas flow conduit. 6. The exhaust gas recirculation cooler of claim 5, wherein the free edge contacts the first end of the exhaust gas flow conduit to substantially close off the first channel. 7. The exhaust gas recirculation cooler 1, wherein the exhaust gas flow conduit includes a fin structure that divides the exhaust gas flow conduit into the plurality of third channels. 8. The exhaust gas recirculation cooler of claim 1, wherein the first channel has a first hydraulic diameter, wherein the second channel has a second hydraulic diameter, and wherein at least one of the third channels has a third hydraulic diameter that is less than the first hydraulic diameter. 9. The exhaust gas recirculation cooler of claim 1, wherein the first narrow side has a first arcuate shape facing a first direction, and wherein the second narrow side has a second arcuate shape facing opposite the first direction of the first arcuate shape of the first narrow side. 10. An exhaust gas recirculation cooler configured to cool exhaust gas from an engine, the exhaust gas recirculation cooler comprising: an inlet tank having an exhaust gas flow inlet port configured to receive the exhaust gas from the engine;an outlet tank having an outlet port configured to direct the exhaust gas back toward the engine;a first exhaust gas flow conduit in fluid communication with the inlet tank and the outlet tank, the first exhaust gas flow conduit including a first end adjacent the inlet tank,a second end adjacent the outlet tank,a first narrow side,a second narrow side opposite the first narrow side,substantially flat broad sides extending between the first narrow side and the second narrow side,a first channel adjacent the first narrow side and extending between the first end and the second end,a second channel adjacent the second narrow side and extending between the first end and the second end, anda plurality of third channels located between the first channel and the second channel and extending between the first end and the second end,a first inner wall located at the first end of the first exhaust gas flow conduit to inhibit the exhaust gas from flowing through the first channel while allowing exhaust gas flow through the plurality of third channels; anda second inner wall located at the first end of the first exhaust gas flow conduit to inhibit the exhaust gas from flowing through the second channel while allowing exhaust gas flow through the plurality of third channels. 11. An exhaust gas recirculation cooler configured to cool exhaust gas from an engine, the exhaust gas recirculation cooler comprising: an inlet configured to receive the exhaust gas from the engine;an outlet configured to direct the exhaust gas back toward the engine;an exhaust gas flow conduit including a first end adjacent the inlet,a second end adjacent the outlet,a first narrow side,a second narrow side opposite the first narrow side,substantially flat broad sides extending between the first narrow side and the second narrow side,a first channel adjacent the first narrow side and extending between the first end and the second end,a second channel adjacent the second narrow side and extending between the first end and the second end, anda plurality of third channels located between the first channel and the second channel and extending between the first end and the second end;a wall having a first portion located at the first end of the exhaust gas flow conduit to inhibit the exhaust gas from flowing through at least one of the first channel and the second channel while allowing exhaust gas flow through the plurality of third channels; anda header that receives a portion of the exhaust gas flow conduit, wherein a second portion of the wall is directly connected to the header. 12. The exhaust gas recirculation cooler of claim 1, wherein a first coolant port of the plurality of coolant ports is adjacent to the first narrow side and a second coolant port of the plurality of coolant ports is adjacent to the second narrow side, such that spaces around the outer surfaces of at least some of the plurality exhaust flow conduits direct coolant flow between the first coolant port and the second coolant port. 13. The exhaust gas recirculation cooler of claim 9, wherein the at least one exhaust gas flow conduit further includes an insert extending between the flat broad sides, and wherein the first arcuate shape precludes the insert from extending to the first narrow side and the second arcuate shape precludes the insert from extending to the second narrow side. 14. The exhaust gas recirculation cooler of claim 10, further including, a second exhaust gas flow conduit in fluid communication with the inlet tank and the outlet tank, the second exhaust gas flow conduit including,an third end adjacent the inlet tank,a forth end adjacent the outlet tank,a third narrow side,a forth narrow side,substantially flat broad sides extending between the third narrow side and the forth narrow side,a forth channel adjacent the third narrow side and extending between the third end and the forth end,a fifth channel adjacent the forth narrow side and extending between the third end and the forth end, anda plurality of sixth channels located between the forth channel and the fifth channel and extending between the third end and the forth end,wherein the at least one inner wall permits flow into both the forth channel or the fifth channel. 15. The exhaust gas recirculation cooler of claim 10, wherein the first channel, the second channel, and the third channels of the first exhaust conduit are all continuously fluidly connected to the inlet port. 16. The exhaust gas recirculation cooler of claim 15, wherein the first channel and the second channel are each fluidly connected to the inlet port via a tortuous path. 17. The exhaust gas recirculation cooler of claim 10, wherein the inlet tank further includes at least one outer wall having an inner surface fluidly separated from the exhaust gas flow inlet port by the at least one inner wall. 18. The exhaust gas recirculation cooler of claim 10, further comprising a third inner wall located at the second end of the first exhaust gas flow conduit to inhibit the exhaust gas from flowing through the first channel while allowing exhaust gas flow through the plurality of third channels, anda fourth inner wall located at the second end of the first exhaust gas flow conduit to inhibit the exhaust gas from flowing through the second channel while allowing exhaust gas flow through the plurality of third channels. 19. The exhaust gas recirculation cooler of claim 11, wherein the second portion of the wall extends away from the first portion of the wall. 20. The exhaust gas recirculation cooler of claim 11, wherein first portion of the wall is fluidly connected to the inlet and the second portion of the wall is fluidly separated from the inlet by the first portion of the wall.
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