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    • 12. 发明授权
    • Fuel assembly
    • 燃油组件
    • US5490192A
    • 1996-02-06
    • US247854
    • 1994-05-23
    • Junjiro NakajimaKoji NishidaSatoshi KannoTadashi MizunoYasunori BesshoMasahisa InagakiYasuhiro Aizawa
    • Junjiro NakajimaKoji NishidaSatoshi KannoTadashi MizunoYasunori BesshoMasahisa InagakiYasuhiro Aizawa
    • G21C3/344G21C3/34
    • G21C3/344G21Y2002/101G21Y2004/302Y02E30/40
    • A fuel assembly comprises a plurality of fuel rods, tie plates for holding both ends of these fuel rods, and spacers which support these fuel rods. The spacer comprises a plurality of cells into which the fuel rods are inserted respectively, the adjacent cells being joined to each other at axial ends thereof, whereby a space between these cells being held or retained, and a plurality of loop springs held respectively on the cells. Each of the loop springs has a pair of resilient members which are located within the pair of adjacent cells and which urge the fuel rods in a radial direction, and a pair of connections which connect axial ends of the resilient members to each other. Each of the connections have a passage through which coolant flows axially and which is defined by a closed peripheral wall. The closed peripheral wall is not uniform in thickness. The pair of adjacent cells have at axial end portions of peripheral walls openings for accommodating or receiving the connections of the loop spring.
    • 燃料组件包括多个燃料棒,用于保持这些燃料棒的两端的连接板以及支撑这些燃料棒的间隔件。 间隔件包括分别插入燃料棒的多个单元,相邻的单元在其轴向端部彼此接合,由此保持或保持这些单元之间的空间,以及分别保持在该单元上的多个环形弹簧 细胞。 每个环形弹簧具有一对弹性构件,该弹性构件位于一对相邻的单元内并且沿径向推动燃料棒,以及将弹性构件的轴向端部彼此连接的一对连接件。 每个连接件都有一个通道,冷却剂通过该通道轴向流动,并由封闭的外围壁限定。 封闭的周边壁厚度不均匀。 一对相邻的单元具有用于容纳或接收环形弹簧的连接的外围壁开口的轴向端部。
    • 13. 发明授权
    • Corrosive environment sensor, corrosive environment measuring apparatus
and corrosive environment control system
    • 腐蚀性环境传感器,腐蚀性环境测量仪器和腐蚀性环境控制系统
    • US5378429A
    • 1995-01-03
    • US74320
    • 1993-06-09
    • Makoto HayashiSatoshi KannoNaoto Saito
    • Makoto HayashiSatoshi KannoNaoto Saito
    • G01N3/32G01N3/00G01N3/02G01N3/20G01N17/00G01N27/26G01N19/08
    • G01N3/20G01N17/00G01N2203/0066G01N2203/024
    • A corrosive environment sensor comprises an elongate member having a pair of elongate beam portions and a crack growth portion formed between the pair of beam portions so as to extend axially, and a wedge inserted between the pair of beam portions, wherein the crack growth portion has width thereof defined by quadratic curves extending axially so as to decrease from an axially intermediate portion of the sensor member to an axially intermediate portion of the crack growth portion and increase from the axially intermediate portion of the crack growth portion toward an end of the sensor member. The quadratic curves each consist of a first circular arc with first radius between the axially intermediate portion of the sensor member and the axially intermediate portion of the crack growth portion and a second circular arc with second radius less than the first radius between the axially intermediate portion of the crack growth portion and around the second end of the sensor member. There are further disclosed a corrosive environment measuring apparatus employing the above-mentioned corrosive environment sensor, and a corrosive environment control system employing the above-mentioned corrosive environment measuring apparatus.
    • 腐蚀性环境传感器包括细长构件,其具有一对细长的梁部分和在所述一对梁部分之间形成以便轴向延伸的裂纹扩展部分,以及插入在所述一对梁部分之间的楔形物,其中所述裂纹扩展部分具有 其宽度由沿轴向延伸的二次曲线限定,以便从传感器构件的轴向中间部分减小到裂纹增长部分的轴向中间部分,并且从裂纹扩展部分的轴向中间部分向传感器构件的端部增加 。 二次曲线各自包括第一圆弧,其第一半径在传感器构件的轴向中间部分与裂纹扩展部分的轴向中间部分之间,第二圆弧的第二半径小于轴向中间部分之间的第一半径 的裂纹生长部分和传感器部件的第二端周围。 还公开了采用上述腐蚀性环境传感器的腐蚀性环境测量装置和采用上述腐蚀性环境测量装置的腐蚀性环境控制系统。