Device for exhaust gas heat utilization, exhaust gas module having such a device, and method of manufacturing the device
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-035/30
F01N-005/02
H01L-035/34
출원번호
US-0596155
(2012-08-28)
등록번호
US-9991435
(2018-06-05)
우선권정보
DE-10 2011 111 954 (2011-08-30)
발명자
/ 주소
Khuc, Anh-Duy
출원인 / 주소
FAURECIA EMISSIONS CONTROL TECHNOLOGIES, GERMANY GMBH
대리인 / 주소
Carlson, Gaskey & Olds, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
A device for exhaust gas heat utilization in internal combustion engines of motor vehicles has an outer housing through which exhaust gas can flow and at least one thermoelectric generator module received in the outer housing. The at least one thermoelectric generator module is fastened onto a wavel
A device for exhaust gas heat utilization in internal combustion engines of motor vehicles has an outer housing through which exhaust gas can flow and at least one thermoelectric generator module received in the outer housing. The at least one thermoelectric generator module is fastened onto a wavelike carrier wall. The invention further relates to an exhaust gas module having such a device, and to a method of manufacturing this device.
대표청구항▼
1. A device for exhaust gas heat utilization in internal combustion engines of motor vehicles comprising: an outer housing through which exhaust gas can flow, the outer housing having a longitudinal direction corresponding to a direction of an exhaust gas flow;at least one exhaust gas flow channel e
1. A device for exhaust gas heat utilization in internal combustion engines of motor vehicles comprising: an outer housing through which exhaust gas can flow, the outer housing having a longitudinal direction corresponding to a direction of an exhaust gas flow;at least one exhaust gas flow channel extending through the outer housing in the longitudinal direction and at least one cooling flow channel extending through the outer housing in the longitudinal direction, the at least one exhaust gas flow channel configured to conduct hot exhaust gases and the at least one cooling flow channel being configured to conduct a cooling agent;a plurality of wave carrier walls received within and surrounded by the outer housing, wherein each wave carrier wall has a wave shaped cross-section; andat least one thermoelectric generator module received in the outer housing and fastened onto the plurality of wave carrier walls, the at least one thermoelectric generator module being configured as a thin cuboidal plate and comprising interconnected thermoelectric elements, opposite cover plates, and electric connections for tapping electric energy;wherein the plurality of wave carrier walls comprise at least a first wave carrier wall that delimits the at least one exhaust gas flow channel and a second wave carrier wall extending parallel and adjacent to the first wave carrier wall, and wherein the second wave carrier wall delimits the at least one cooling flow channel;wherein the at least one thermoelectric generator module is arranged outside the at least one exhaust gas and cooling flow channels and is held directly between the first and second wave carrier walls;wherein each wave carrier wall comprises bent wall portions and flat wall portions, each thermoelectric generator module being in direct contact with exactly one of the flat wall portions of the first wave carrier wall and being in direct contact with exactly one of the flat wall portions of the second wave carrier wall; andwherein the second wave carrier wall extends parallel and adjacent to the first wave carrier wall over the complete extension of the first wave carrier wall. 2. The device according to claim 1, wherein the outer housing has a housing cross-section extending perpendicular to the longitudinal direction of the outer housing and the direction of the exhaust gas flow, the longitudinal direction defining a longitudinal axis, and wherein the housing cross-section extends from one cross-sectional edge on one side of the longitudinal axis to an opposite cross-sectional edge on an opposite side of the longitudinal axis, with each of the wave carrier walls extending in a wave manner and in one piece substantially from the one cross-sectional edge to the opposite cross-sectional edge of the housing cross-section. 3. The device according to claim 2, wherein the plurality of wave carrier walls have a V-shaped wave cross-section. 4. The device according to claim 1, wherein adjacent flat wall portions of each wave carrier wall is oriented at an angle (α) of 0°≤α≤120° with respect to each other. 5. The device according to claim 1, wherein on a face of a wave carrier wall facing away from the at least one thermoelectric generator module, heat conducting lamellas adjoin the wave carrier wall, with the heat conducting lamellas being clamped directly between two wave carrier walls and being located within the at least one exhaust gas flow channel. 6. The device according to claim 5, wherein the heat conducting lamellas are connected with at least one of the wave carrier walls by an intermaterial bond. 7. The device according to claim 5, wherein the heat conducting lamellas are made of a metal sheet bent to include a plurality of bends that are in an overlapping relationship with each other to form a zig-zag shape. 8. The device according to claim 5, wherein the plurality of wave carrier walls have flat wall portions, and in that each heat conducting lamella determines a lamella plane, the lamella planes of the heat conducting lamellas adjoining a flat wall portion respectively forming along with the flat wall portion an angle (β) of 30°<β<90°. 9. The device according to claim 1, wherein the at least one thermoelectric generator module has a first face in direct contact with the first wave carrier wall and having a second face, opposite the first face, in direct contact with the second wave carrier wall. 10. The device according to claim 1, wherein the at least one exhaust gas and cooling flow channels have a wave cross-section. 11. The device according to claim 1, wherein the outer housing is composed of two half shells and has a parting plane at which the two half shells are connected with each other to form the outer housing. 12. The device according to claim 11, wherein the two half shells are acted upon by a joining force when the outer housing is assembled, the joining force being directed substantially perpendicularly to the parting plane, the at least one thermoelectric generator module being arranged obliquely to the direction of the joining force as viewed in cross-section. 13. The device according to claim 1, wherein the plurality of wave carrier walls extend parallel to each other to delimit a plurality of adjacent flow channels alternately comprising one exhaust gas flow channel adjacent one cooling flow channel, and wherein the at least one thermoelectric generator module comprises a plurality of thermoelectric generator modules that are fastened between the at least one exhaust gas and cooling flow channels, and wherein one exhaust gas flow channel has one side adjoined by one cooling flow channel and an opposite side adjoined by another cooling flow channel. 14. The device according to claim 8, wherein at least one of the wave carrier walls has flat wall portions, and in that each heat conducting lamella determines a lamella plane, the lamella planes of the heat conducting lamellas adjoining a flat wall portion respectively forming along with the flat wall portion an angle (β) of 60°<β<88°. 15. The device according to claim 1, wherein one of the opposite cover plates comprises a hot side and the other of the opposite cover plates comprises a cold side. 16. The device according to claim 1, wherein the opposite cover plates lie flat against, and in direct abutting contact with, the flat wall portions of the plurality of wave carrier walls. 17. The device according to claim 1, wherein the plurality of wave carrier walls are held fixed to the outer housing. 18. The device according to claim 1, wherein the bent wall portions and flat wall portions alternate with one another to form a wave shape. 19. The device according to claim 1, wherein the thin cuboidal plate has a first flat plate surface that rests in direct abutting contact with a corresponding flat area of the one of the flat wall portions of the first wave carrier wall and a second flat plate surface that that rests in direct abutting contact with a corresponding flat area of the one of the flat wall portions of the second wave carrier wall. 20. The exhaust gas module according to claim 1, wherein the flat wall portion of the first wave carrier wall and the flat wall portion of the second wave carrier wall have at least the dimensions of the opposite cover plates of the at least one thermoelectric generator module in a contact area where the at least one thermoelectric generator module is in contact with the flat wall portions. 21. The exhaust gas module according to claim 1, wherein the opposite cover plates of the at least one thermoelectric generator module are flat.
Barben Ted (Carson City NV) Carlson Randy (Carson City NV) Christner Kurt (Carson City NV) Doring Heinz (Carson City NV), Thermoelectric gas sample cooler.
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