IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0297939
(2007-04-23)
|
등록번호 |
US-8235240
(2012-08-07)
|
우선권정보 |
DE-10 2006 018 639 (2006-04-21) |
국제출원번호 |
PCT/EP2007/003545
(2007-04-23)
|
§371/§102 date |
20081021
(20081021)
|
국제공개번호 |
WO2007/121969
(2007-11-01)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Magna Steyr Fahrzeugtechnik AG & Co. KG
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
7 |
초록
▼
A flat inner container (3), especially an internal tank for a road vehicle, which is surrounded by an outer container (1) and is used for receiving a cryogenic liquid, particularly a fuel. The inner container (3) comprises a combination of the following features: a longitudinally extending monolithi
A flat inner container (3), especially an internal tank for a road vehicle, which is surrounded by an outer container (1) and is used for receiving a cryogenic liquid, particularly a fuel. The inner container (3) comprises a combination of the following features: a longitudinally extending monolithic base (4) with a top wall (5) and a bottom wall (6) which are connected to also longitudinally extending sidewalls (7), and with at least two longitudinally extending, substantially straight webs (9) that connect the bottom wall (6) to the top wall (5) so as to form at least one longitudinally extending chamber (10) which is arranged between the webs, extends along the entire length of the base (4) as well as from the bottom wall (6) to the top wall (5), and has a predetermined width between the webs; and at least two caps (11) which tightly seal the two open ends of the base (4) at the periphery; the top wall and/or the bottom wall is/are provided with an arch relative to a planar reference top wall and/or reference bottom wall, the distance of the arch between the inner contour of the top wall and/or the bottom wall and the planar reference top wall and/or reference bottom wall amounting to less than 30 percent of the width of the chamber in the center between the webs.
대표청구항
▼
1. A fuel tank comprising an inner tank (3), of flat design, which is surrounded by an outer tank (1) and serves to hold a cryogenic liquid, the inner tank comprises: (a) a longitudinally extending, single-piece basic body (4) having a top wall (5) and a base wall (6) which are connected by means of
1. A fuel tank comprising an inner tank (3), of flat design, which is surrounded by an outer tank (1) and serves to hold a cryogenic liquid, the inner tank comprises: (a) a longitudinally extending, single-piece basic body (4) having a top wall (5) and a base wall (6) which are connected by means of likewise longitudinally extending side walls (7), and having at least two longitudinally running, substantially straight webs (9) which connect the base wall (6) to the top wall (5) so as to form at least one longitudinally extending chamber (10) which is arranged between the webs and which extends over the entire length of the basic body (4) and in each case from the base wall (6) to the top wall (5), with the longitudinally extending chamber having a predetermined width between the webs,(b) at least two caps (11) which sealingly close off the two open ends of the basic body (4) in each case at the periphery, and(c) with at least one of the top wall and base wall having, in each case with respect to a planar reference top wall and reference base wall, a bulge with a spacing, measured centrally between the webs, in each case between the inner contour of the top wall and base wall and the planar reference top wall and reference base wall, of less than 30% of the width of the chamber, wherein the webs have a cutout (30) in the region of the fastening of the caps (31) to at least one of the base wall and top wall, and wherein the caps are fastened by means of an encircling weld seam, to the basic body, and the webs have the cutout (30) in each case in the region of the weld seam, between the caps and the basic body. 2. The fuel tank according to claim 1, wherein the caps (11) engage over the ends of the chambers (10) in each case. 3. The fuel tank according to claim 2, wherein at least one of the caps (11) forms a free space (10′) which connects the chambers (19). 4. The fuel tank according to claim 3, wherein at least one of the caps (11) is of substantially flat design. 5. The fuel tank according to claim 1, wherein at least one of the caps (38) has a number of recesses (43) into which a free end (44), which is aligned in the longitudinal direction of the basic body, of at least one of the webs (41) projects. 6. The fuel tank according to claim 5, wherein the web is fastened by means of a weld seam to the cap (38) in the region of the recess (43) of the cap (38). 7. The fuel tank according to claim 1, wherein the basic body substantially has a profile, transversely with respect to the longitudinal extent, in the shape of a rectangle, with the longitudinal edges, which connect the side walls (7) to the base wall (6) and to the top wall (5) designed as rounded portions (8). 8. The fuel tank according to claim 1, wherein the basic body (4) is designed as a single-piece extruded profile. 9. The fuel tank according to claim 1, wherein the transitions between the web (9) and base wall (6) or top wall (5) are rounded with a radius which is greater than or equal to the wall thickness of the web (9), the wall thickness of the base wall (6), and the top wall (5). 10. The fuel tank according to claim 1, wherein the basic body (4) and the caps (11) are formed from an aluminum alloy.
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