Tubing for a liquid medium that is to be conditioned
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F15D-001/02
F16L-009/19
B32B-001/08
F16L-053/00
B32B-027/34
F01N-003/20
출원번호
US-0865652
(2013-04-18)
등록번호
US-9371942
(2016-06-21)
우선권정보
EP-12 164 962 (2012-04-20)
발명자
/ 주소
Jensen, Hans
Hersel, Walter
출원인 / 주소
TI Automotive (Heidelberg) GmbH
대리인 / 주소
Brinks Gilson & Lione
인용정보
피인용 횟수 :
1인용 특허 :
18
초록▼
Tubing for a liquid medium that is to be conditioned, including an inner tube for the liquid-medium that is to be conditioned encompassed by an outer tube, parallel to the inner tube. An outermost tube surrounds the outer tube. At least one duct for the liquid conditioning medium, is disposed betwee
Tubing for a liquid medium that is to be conditioned, including an inner tube for the liquid-medium that is to be conditioned encompassed by an outer tube, parallel to the inner tube. An outermost tube surrounds the outer tube. At least one duct for the liquid conditioning medium, is disposed between the inner tube and the outer tube and at least one duct for the liquid conditioning medium is disposed between the outer tube and the outermost tube. A redirecting region connects the ducts between the inner tube and outer tube and the outer tube and the outermost tube. The inner tube and the outer tube consist of thermoplastic plastics, and the unit, consisting of the inner tube and the outer tube, is produced by co-extrusion.
대표청구항▼
1. An apparatus for a motor vehicle for a liquid medium that is to be conditioned, the apparatus comprising: a tank for providing the liquid medium that is to be conditioned, anda tubing in fluid communication with the tank for advancing the liquid medium that is to be conditioned, wherein the tubin
1. An apparatus for a motor vehicle for a liquid medium that is to be conditioned, the apparatus comprising: a tank for providing the liquid medium that is to be conditioned, anda tubing in fluid communication with the tank for advancing the liquid medium that is to be conditioned, wherein the tubing comprises: an inner tube for the liquid medium that is to be conditioned or for a liquid conditioning medium, andan outer tube, wherein the inner tube is encompassed by the outer tube, and runs substantially parallel, to the outer tube, wherein at least one duct is disposed between the inner tube and the outer tube for the liquid conditioning medium or for the liquid medium that is to be conditioned, wherein the inner tube and the outer tube consist, or substantially consist, of thermoplastic plastics, and wherein a unit, consisting of the inner tube and the outer tube is produced by means of co-extrusion,wherein the tubing further comprises at least one co-extruded outermost tube, wherein the unit, consisting of the inner tube and the outer tube, is disposed in the outermost tube, wherein the outermost tube runs in the longitudinal direction of the unit, and parallel or substantially parallel to the unit, and wherein at least one outer duct is disposed between the outer tube and the outermost tube,and wherein a redirecting region is provided for redirecting the conditioning medium, andwherein the redirecting region is disposed at a first end of the tubing and wherein an inlet and an outlet for the conditioning medium are disposed at a second end of the tubing, wherein the tank is connected with the second end of the tubing, and wherein the first end of the tubing is connected with an SCR catalytic converter. 2. The apparatus according to claim 1, wherein the inner wall of the outer tube is connected by means of numerous co-extruded bridges to the outer wall of the inner tube, and wherein the co-extruded bridges extend in the longitudinal direction of the tubing. 3. The apparatus according to claim 1, wherein the inner wall of the outermost tube is connected to the outer wall of the outer tube by means of numerous co-extruded outer bridges, and wherein the co-extruded outer bridges extend in the longitudinal direction of the tubing. 4. The apparatus according to claim 1, wherein the bridges and/or the outer bridges exhibit a trapezoidal cross-section. 5. The apparatus according to claim 1, where the wall thickness of the inner tube and/or the outer tube and/or the outermost tube is 0.6-3 mm. 6. The apparatus according to claim 1, wherein the inner tube and/or the outer tube and/or the outermost tube are cylindrical, or substantially cylindrical. 7. The apparatus according to claim 1, wherein the inner tube is disposed concentrically within the outer tube, and/or wherein the outer tube, or the unit, consisting of the inner tube and the outer tube, respectively, is disposed concentrically within the outermost tube. 8. The apparatus according to claim 1, wherein the ratio of the inner diameter d of the inner tube to the radial width ri of a duct between the inner tube and the outer tube, and/or the radial width ra of an outer duct between the outer tube and the outermost tube is 3-15. 9. The apparatus according to claim 1, wherein the inner diameter d of the inner tube is 2-15 mm. 10. The apparatus according to claim 1, wherein the radial width ri of a duct and/or the radial width ra of an outer duct is 0.5-3.0 mm. 11. The apparatus according to claim 1, wherein the tubing is a component of a motor vehicle, and wherein the conditioning medium is preferably heated cooling fluid or recirculated fuel. 12. The apparatus according to claim 1, wherein the medium to be conditioned is a carbamide solution. 13. The apparatus according to claim 1, wherein the liquid medium to be conditioned is received, or flows, respectively, in the inner tube, and wherein the liquid conditioning medium is received, or flows, respectively, at the at least one duct between the inner tube and the outer tube. 14. The apparatus according to claim 1, wherein the conditioning medium first flows through the at least one duct between the inner tube and the outer tube in a first direction, along the tubing, wherein the redirecting region is provided for redirecting the conditioning medium into the at least one outer duct between the outer tube and the outermost tube, and wherein the conditioning medium flows through the at least one outer duct in a second direction, opposite the first direction, along the tubing.
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