IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0674236
(1996-06-28)
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우선권정보 |
FR-0007852 (1995-06-29) |
발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
Pollock, Vande Sande & Priddy
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인용정보 |
피인용 횟수 :
12 인용 특허 :
4 |
초록
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A spacer grid spring (6) consists of a single metal leaf including two end parts (6a, 6b) substantially in the same plane and a central part (6c) out of the plane of the end parts (6a, 6b). At least one of the end parts (6a, 6b) is laterally provided with two flanges (6d, 6e) folded out of the plane
A spacer grid spring (6) consists of a single metal leaf including two end parts (6a, 6b) substantially in the same plane and a central part (6c) out of the plane of the end parts (6a, 6b). At least one of the end parts (6a, 6b) is laterally provided with two flanges (6d, 6e) folded out of the plane of the end part (6a, 6b), in the opposite direction from the central part (6c) of the spring (6). The call wall (5) intended to receive the spring (6) includes, in an arrangement adjacent to each of two dimples (7a, 7b) placed at the ends of the wall (5), a part (8a,8b) for holding an end (6a, 6b) of the spring, and an opening (10a, 10b) passing through the wall (5) adjacent to the holding part (8a, 8b).
대표청구항
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[ What is claimed is:] [1.] A spacer grid of a fuel assembly for a nuclear reactor, consisting of interlaced metal straps (2, 3) defining a regular lattice of cells (4), at least a part of which includes, for each cell (4, 4a, 4b, 4', 4"), at least one wall (5) for separation from a neighbouring cel
[ What is claimed is:] [1.] A spacer grid of a fuel assembly for a nuclear reactor, consisting of interlaced metal straps (2, 3) defining a regular lattice of cells (4), at least a part of which includes, for each cell (4, 4a, 4b, 4', 4"), at least one wall (5) for separation from a neighbouring cell, constituted by a portion of a strap, on which a spring (6, 6', 6") for holding a fuel rod intended to be housed in the cell (4, 4a) is attached and held, the wall of the cell (4, 4a) being cut and pushed into the neighbouring cell (4b, 4") in two end zones spaced apart in a longitudinal mounting direction of the spring (6, 6', 6"), in order to constitute two dimples (7, 7', 7a, 7b, 7'a, 7'b) for holding a rod in the neighbouring cell (4", 4b), wherein, for each of the walls (5) on which a spring (6, 6', 6") is attached, the spring (6, 6', 6") is constituted by a single metal leaf including two end parts (6a, 6b, 6'a, 6'b, 6"a, 6"b) substantially in the same plane and a central part (6c, 6'c, 6"c) out of the plane of the end parts, at least one of the end parts being laterally provided with two flanges (6d, 6e, 6'e, 6"e, 6'f) folded out of the plane of the end part (6a, 6b, 6'a, 6'b, 6"b) in the opposite direction from the central part (6c, 6'c, 6"c) of the spring (6, 6', 6"), and wherein the wall (5, 5', 5") intended to receive an attached spring includes, in an arrangement adjacent to each of the dimples (7a, 7b, 7'a, 7'b, 7"a, 7"b), in the direction of the second dimple, a part (8a, 8b, 8'a, 8'b, 8"a, 8"b) for holding an end of the spring (6, 6', 6") and, in an arrangement adjacent to at least one of the holding parts (8a, 8b, 8'a, 8'b, 8"a, 8"b), at least one opening (10a, 10b, 10'a, 10'b, 10"b) passing through the wall.
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