公开(公告)号：US3844884A

公开(公告)日：1974-10-29

申请号：US27677572

申请日：1972-07-31

Applicant: COMBUSTION ENG

Inventor： FRANK B ,  FLINN W ,  GROVES M

IPC: G21C7/16

CPC classification number: G21C7/16 ,  G21Y2002/50 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/39

Abstract: An isolation valve particularly well suited for use in nuclear reactor hydraulic control systems is disclosed. The valve includes an electro-magnetic actuator which may be energized to open the valve thereby permitting the lift flow needed to move fission rate control devices with respect to a fuel assembly. The fission rate control devices are provided with elements comprised of magnetic material which, with the devices fully retracted from the fuel assembly, will be positioned within the magnetic field generated by the valve actuator whereby the devices will be magnetically held in the retracted position.

Abstract translation: 公开了一种特别适用于核反应堆液压控制系统的隔离阀。 阀包括电磁致动器，其可以被激励以打开阀，从而允许相对于燃料组件移动裂变率控制装置所需的升力。 裂变速率控制装置设置有由磁性材料组成的元件，其中从燃料组件完全缩回的装置将被定位在由阀致动器产生的磁场内，由此装置将被磁力地保持在缩回位置。