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1. 发明授权

US4622204A Spacer grid for nuclear reactor fuel assembly 失效
标题翻译：用于核反应堆燃料组装的间隔电网
公开(公告)号：US4622204A
公开(公告)日：1986-11-11
申请号：US720655
申请日：1985-04-08
申请人： Claude Feutrel
发明人： Claude Feutrel
IPC分类号： G21C3/34
CPC分类号： G21C3/34 , G21Y2002/101 , G21Y2002/201 , G21Y2002/301 , G21Y2004/30 , Y02E30/40
摘要： A spacer grid for a nuclear reactor fuel assembly, comprising an assembly of two families of thin partitions which are respectively parallel in each family and perpendicular from one family to the next and which bound pockets of square section through each of which a fuel rod of the cluster extends, the walls of the pocket being formed with bearing points to retain the fuel rods of the cluster, wherein it comprises bearing bridges formed by profiled bosses produced in pairs on a sheet metal tongue obtained by making two longitudinal parallel slots in the thin partition on either side of such bosses, the bosses being oppositely directed in two adjacent pockets, and the reaction of the fuel rods on the bosses after they have been positioned in the grid produces a torque on the resilient sheet metal tongue, the deformation of the tongue thus enabling the assembly tolerances of the fuel rods to be absorbed in the grid. Application to nuclear reactor assemblies.
摘要翻译：用于核反应堆燃料组件的间隔网格，包括两组薄壁隔板的组件，它们分别在每个系列中平行并且从一个系列到下一个系列垂直，并且通过其中的每一个的燃料棒簇延伸，口袋的壁形成有轴承点以保持簇的燃料棒，其中它包括由成对制成的成型凸台形成的轴承座，所述凸台由成对制成的金属板舌上形成，所述凸缘通过在薄隔板中形成两个纵向平行的槽在这种凸台的任一侧上，凸台相对地定向在两个相邻的凹穴中，并且燃料棒在它们已经定位在格架中之后的凸台上的反应在弹性金属板上产生扭矩，舌头的变形从而使燃料棒的组装公差能够在电网中被吸收。应用于核反应堆组装。

2. 发明授权

US4221636A Grids for bringing about the spacing of a group of sheathed fuel rods in a nuclear reactor 失效
标题翻译：用于在核反应堆中产生一组护套燃料棒的间距的网格
公开(公告)号：US4221636A
公开(公告)日：1980-09-09
申请号：US917593
申请日：1978-06-21
申请人： Claude Feutrel
发明人： Claude Feutrel
IPC分类号： G21C3/34 , G21C3/332 , G21C3/356 , G21C3/02
CPC分类号： G21C3/3566 , G21C3/332 , Y02E30/40
摘要： Spacing grid for a group of fuel rods in a nuclear reactor assembly which comprises an assembly of two groups of thin sheets which are parallel within each group and perpendicular from one group to the next for defining cavities of square cross-section, each of which is traversed by a fuel rod, while substantially in the center of its extension in the region defining two adjacent cavities on either side of the sheet the latter has at least one elastically sprung tongue connected to the sheet and made from a material which differs from that of the sheet, each tongue being bent so as to give a zig-zag profile so that it has at least two bosses bearing respectively against the rods passing through the two cavities, wherein the ends of the tongue are disposed in the plane of the sheet and are engaged in slots provided in the latter in order to hold the tongue in place, while permitting a deflection of its ends as a result of the forces exerted by the rods on the bosses.
摘要翻译：用于核反应堆组件中的一组燃料棒的间隔栅格，其包括两组薄片的组合，所述两组薄片在每组中平行并且从一组到下一组垂直，用于限定正方形横截面的空腔，当燃料棒穿过时，其基本上在其延伸部的中心位于片材的任一侧上限定两个相邻空腔的区域中，后者具有至少一个与片材连接的弹性舌形舌片，并且由不同于每个舌片被弯曲以形成锯齿形轮廓，使得其具有分别抵靠穿过两个空腔的杆的至少两个凸起，其中舌片的端部设置在片材的平面中，并且接合在后者中的狭槽中以便将舌头保持在适当的位置，同时由于杆施加在凸台上的力而允许其端部偏转。

3. 发明授权

US4551300A Nuclear reactor fuel assembly end fitting 失效
标题翻译：核反应堆燃料组件端配件
公开(公告)号：US4551300A
公开(公告)日：1985-11-05
申请号：US456739
申请日：1983-01-10
申请人： Claude Feutrel
发明人： Claude Feutrel
IPC分类号： G21C3/32 , G21C3/33 , G21C5/06 , G21C3/30
CPC分类号： G21C3/331 , G21C3/32 , G21C5/06 , G21C3/33 , G21C3/3315 , G21Y2002/104 , G21Y2002/303 , G21Y2004/30 , G21Y2004/303 , Y02E30/40
摘要： End fitting for the fuel assembly of a nuclear reactor comprising in per se known manner a device for holding the fuel assembly against an upper or lower plate of the reactor core, wherein the maintaining device is constituted by a plurality of rigid levers, having a first end and a second end, each lever being articulated on an axis A, a closed recess provided in the sides of a frame of the end fitting for each lever and elastic means contained in the recesses and exerting a restoring torque on the corresponding lever.
摘要翻译：用于核反应堆的燃料组件的端部配件，其包括本身已知的方式，用于将燃料组件保持抵靠在反应堆堆芯的上板或下板上，其中维护装置由多个刚性杆构成，其具有第一端部和第二端，每个杠杆在轴线A上铰接，设置在每个杠杆的端部配件的框架的侧面中的闭合凹部和容纳在凹部中的弹性装置，并且在相应的杠杆上施加恢复转矩。

4. 发明授权

US4364902A Device for fixing a spring to a spacing grid for fuel elements of nuclear reactors 失效
标题翻译：用于将弹簧固定到核反应堆燃料元件的间隔网格的装置
公开(公告)号：US4364902A
公开(公告)日：1982-12-21
申请号：US181704
申请日：1980-08-27
申请人： Claude Feutrel
发明人： Claude Feutrel
IPC分类号： G21C3/356 , G21C3/34
CPC分类号： G21C3/3566 , G21Y2002/201 , G21Y2002/204 , G21Y2002/302 , G21Y2004/30 , Y02E30/40
摘要： The present invention relates to a device for fixing a spring to a spacing grid for fuel elements of nuclear reactors.This device is characterized in that it is constituted by two retaining bridges (8) for the spring (6) made in one of the thin metal sheets constituting the grid and maintaining the spring (6) against said sheet. Two other bridges (10) located outside the bridges (8) constitute abutments for stopping the translation of the spring (6). A double stamping (12) made in the thin metal sheet at the approaches of each retaining bridge (8) constitute a precise translation guide for the spring (6).Application to the spacing grids of fuel elements of nuclear reactors.
摘要翻译：本发明涉及一种用于将弹簧固定到用于核反应堆的燃料元件的间隔格栅的装置。该装置的特征在于，它由用于构成网格的薄金属片之一制成的弹簧（6）的两个保持桥（8）构成，并将弹簧（6）保持在所述片材上。位于桥梁（8）外部的另外两个桥梁（10）构成用于停止弹簧（6）的平移的基台。在每个保持桥（8）的接近处，薄金属片制成的双重冲压（12）构成弹簧（6）的精确平移引导件。应用于核反应堆燃料元件间距格栅。

5. 发明授权

US4224107A Spacer grids for a nuclear reactor fuel assembly 失效
标题翻译：用于核反应堆燃料组件的间隔网
公开(公告)号：US4224107A
公开(公告)日：1980-09-23
申请号：US904452
申请日：1978-05-09
申请人： Jacques Delafosse , Claude Feutrel
发明人： Jacques Delafosse , Claude Feutrel
IPC分类号： G21C3/356 , G21C3/30
CPC分类号： G21C3/3563 , Y02E30/40
摘要： The spacer grid for a nuclear reactor fuel assembly has an open structure constituted by an array of flat sheet metal members in interfitting relation and defining compartments. Narrow corrugated strips project into the interior of the compartments and form separations between openings of substantial width in the surface of the sheet metal members and an outer frame surrounds the structure. The sheet metal members are joined to the corrugated strips by means of a zone having lower mechanical strength so as to increase the deflection of each strip in respect of the same applied force.
摘要翻译：用于核反应堆燃料组件的间隔栅格具有由相互关联的关系和限定隔室中的平板状金属构件阵列构成的开放结构。狭窄的波纹条投射到隔室的内部，并且在金属板构件的表面中形成相当宽度的开口之间的分隔，并且围绕该结构的外框架。金属板构件通过具有较低机械强度的区域连接到波纹条，以便相对于相同施加的力增加每个条带的偏转。

6. 发明授权

US4587092A Nuclear reactor fuel assembly 失效
标题翻译：核反应堆燃料组件
公开(公告)号：US4587092A
公开(公告)日：1986-05-06
申请号：US735720
申请日：1985-05-20
申请人： Claude Feutrel
发明人： Claude Feutrel
IPC分类号： G21C3/356 , G21C3/32 , G21C3/332 , G21C3/34
CPC分类号： G21C3/332 , G21C3/32 , G21Y2002/201 , G21Y2004/30 , Y02E30/40
摘要： Water-cooled nuclear reactor fuel assembly of the type comprising two end pieces, respectively an upper end piece and a lower end piece, said end pieces having openings for the circulation of the light cooling water, the spacing grids made from a single metal have a relaxation effect under irradiation and are constituted by two groups of perpendicular plates, said grids defining cavities, each of which is traversed either by a fuel rod, or by a connecting rod, said spacing grids being distributed along the connecting rods, the walls of each cavity having bearing members for holding in place the fuel rods, wherein the fuel rods are jointed to an end piece and wherein means are provided for maintaining the group of grids against one of the upper or lower end plates, both during the operation of the reactor and when it is shut down.
摘要翻译：所述水冷核反应堆燃料组件包括两个端部件，分别为上端件和下端件，所述端件具有用于轻水冷却水循环的开口，由单一金属制成的间隔栅格具有辐射下的松弛效应由两组垂直板组成，所述栅格限定空腔，每个都由燃料棒或连接杆穿过，所述间隔栅格沿着连接杆分布，每个壁空腔具有用于保持燃料棒的轴承构件，其中燃料棒被接合到端部件上，并且其中设置有用于在反应器的操作期间将栅格组保持抵靠上端板或下端板之一的装置当它被关闭时。

7. 发明授权

US4411862A Spacer grating for fuel element in a nuclear reactor 失效
标题翻译：核反应堆中燃料元件的间隔栅格
公开(公告)号：US4411862A
公开(公告)日：1983-10-25
申请号：US226895
申请日：1981-01-21
申请人： Joseph Leclercq , Jacques Le Pargneux , Claude Feutrel , Guy Lestiboudois , Michel Chantant
发明人： Joseph Leclercq , Jacques Le Pargneux , Claude Feutrel , Guy Lestiboudois , Michel Chantant
IPC分类号： G21C3/00 , G21C3/34 , G21C3/356
CPC分类号： G21C3/356 , G21C3/34 , G21C3/3424 , G21C3/3566 , G21Y2002/201 , G21Y2002/301 , G21Y2004/30 , G21Y2004/305 , Y02E30/40
摘要： The present invention relates to a spacer grating for fuel element in a nuclear reactor of the PWR type, said grating being constituted by intersecting plates. Over the greater part of the walls equipped with springs, double springs comprise two active parts on either side of the wall on which the double spring is placed, allowing the symmetrical action of this spring on two different pencils inside two adjacent cells. On the other walls equipped with springs, single springs comprise one active part only, disposed in one of the two cells separated by the wall on which is placed the spring of which the other part is not capable of coming into contact with a fuel pencil. The invention is particularly applicable to the manufacture of fuel assemblies in nuclear reactors of the PWR type.
摘要翻译：本发明涉及一种PWR型核反应堆中用于燃料元件的间隔光栅，所述光栅由相交板构成。在装有弹簧的大部分墙壁上，双弹簧包括两个有效部分，两个活动部分位于壁的两侧，双弹簧放置在该两个弹簧上，从而允许弹簧在两个相邻电池内的两个不同铅笔上的对称作用。在装有弹簧的其他墙壁上，单个弹簧仅包括一个活动部分，设置在两个细胞之一中，其中一个被隔离墙隔开，其中另一部分不能与燃料笔接触。本发明特别适用于PWR型核反应堆中的燃料组件的制造。

8. 发明授权

US4396573A Space grate for fuel-elements of nuclear reactors 失效
标题翻译：核反应堆燃料元件的空间格栅
公开(公告)号：US4396573A
公开(公告)日：1983-08-02
申请号：US181848
申请日：1980-08-27
申请人： Claude Feutrel
发明人： Claude Feutrel
IPC分类号： G21C3/34 , G21C3/00 , G21C3/356
CPC分类号： G21C3/3563 , G21Y2002/201 , G21Y2002/302 , G21Y2004/30 , Y02E30/40
摘要： A spacer grid assembly provides elastic support and secure positioning of fuel elements in a nuclear reactor. This spacer grid assembly comprises two families of thin perforated sheets, the sheets of one family being parallel to each other and perpendicular to the sheets of the other family. The interlaced assembly of these interfitting sheets forms a three-dimensional lattice of square-sectioned cells for positioning and securing the fuel elements vertically. This spacer grid assembly comprises large recesses within the cell walls that define the spring means. The spring means comprises two plates shaped as a flexible vault, a sheet stud connecting these plates, and two triangular strips integral with this sheet stud on one side and opposite each other on this same side, and ending in circular and protruding pads. These pads contact the fuel element and transmit the bearing power of the spring means to the fuel element. The fuel element is also in contact with rigid bosses on the face of the cell opposite the spring means. After the fuel element is fitted in the cell, the spring means move within the cell wall.
摘要翻译：间隔栅格组件提供弹性支撑并且将燃料元件固定在核反应堆中。该间隔栅格组件包括两个薄的穿孔片材系列，一个族的片材彼此平行并垂直于另一个家庭的片材。这些配合片的交错组件形成用于定位和固定燃料元件的方形截面电池的三维网格。该间隔栅格组件包括限定弹簧装置的单元壁内的大凹槽。弹簧装置包括形成为柔性拱顶的两个板，连接这些板的板螺栓，以及与该板螺栓在一侧一体并且在同一侧相对的两个三角形条，并且以圆形和突出的垫结束。这些垫接触燃料元件并将弹簧装置的轴承力传递到燃料元件。燃料元件也与弹簧装置相对的电池表面上的刚性凸台接触。在燃料元件安装在电池中之后，弹簧装置在电池壁内移动。

9. 发明授权

US4347966A Method for fixing a guide tube of a nuclear reactor fuel assembly 失效
标题翻译：固定核反应堆燃料组件的导管的方法
公开(公告)号：US4347966A
公开(公告)日：1982-09-07
申请号：US157827
申请日：1980-06-09
申请人： Claude Feutrel
发明人： Claude Feutrel
IPC分类号： F16L41/08 , G21C3/334 , B23K33/00
CPC分类号： F16L41/084 , G21C3/334 , G21Y2002/206 , G21Y2002/303 , G21Y2004/301 , G21Y2004/40 , Y02E30/40 , Y10T29/49373 , Y10T29/49945
摘要： Method for fixing a zircalloy guide tube of a nuclear reactor fuel assembly to the steel end plate of said assembly, wherein the following stages are successively formed:the previously expanded end of the guide tube is engaged around a sleeve until it abuts against a first outer shoulder of said sleeves;said end is covered with a force-fitted ferrule and the tube is squeezed against the sleeve, then the upper end of the ferrule is welded to the sleeve above the said first outer shoulder;the sleeve--tube--ferrule assembly is introduced into an opening provided for this purpose in the end plate and having a shoulder, until a second outer shoulder of the sleeve abuts against the said shoulder of the end plate opening;the upper part of the sleeve is welded to the upper part of the opening of the end plate of the assembly.The invention also relates to an apparatus for fixing the zircalloy guide tube to the steel end plate.
摘要翻译：将核反应堆燃料组件的锆合金引导管固定到所述组件的钢端板的方法，其中依次形成以下阶段：引导管的先前扩展的端部围绕套筒接合，直到其抵靠第一外部袖子的肩膀; 所述端部用力配合的套圈覆盖，并且所述管被挤压到所述套筒上，然后所述套圈的上端焊接到所述第一外肩上方的套筒; 套筒管套圈组件被引入设置在端板上的用于此目的的开口中并且具有肩部，直到套筒的第二外肩部抵靠端板开口的所述肩部为止; 套筒的上部焊接到组件的端板的开口的上部。本发明还涉及一种用于将锆合金引导管固定到钢端板的装置。

10. 发明授权

US4617171A Device for fixing a guide tube in a recess on the end fitting of a nuclear reactor fuel assembly 失效
标题翻译：用于将导管固定在核反应堆燃料组件的端部配件上的凹部中的装置
公开(公告)号：US4617171A
公开(公告)日：1986-10-14
申请号：US507060
申请日：1983-06-23
申请人： Claude Feutrel
发明人： Claude Feutrel
IPC分类号： G21C3/33 , G21C5/06 , G21C3/32
CPC分类号： G21C5/06 , G21C3/33 , G21C3/331 , G21C3/3315 , G21Y2002/302 , G21Y2002/303 , G21Y2002/40 , G21Y2004/301 , G21Y2004/50 , Y02E30/40
摘要： Device for the dismantlable fixing of a guide tube in a recess provided for this purpose in the end piece of a fuel assembly of a nuclear reactor, particularly of the water-cooled type, wherein the guide tube has an end fitting, whose ferrule-like end has an inner cylindrical profile slotted over its entire length into a certain number of flexible sectors which can be engaged in an annular recess, or on a bore having circular engagement threads on its surface, under the pressure of an internal cylindrical locking ring, means also being provided for braking the locking ring in axial translation with respect to the end piece and for remotely ensuring the dismantling of the ring.
摘要翻译：用于将引导管可拆卸地固定在用于此目的的凹部中的用于特别是水冷式的核反应堆的燃料组件的端部件中的凹槽的装置，其中，导向管具有端部配件，其套圈状端部具有在其整个长度上开槽的内圆柱形轮廓，该内圆柱形轮廓在一定数量的可在内圆柱形锁定环的压力下接合在环形凹部中或在其表面上具有圆形接合螺纹的孔上，也被设置用于相对于端件轴向平移地制动锁定环并且用于远程地确保环的拆卸。

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