The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 1980
Filed:
Nov. 28, 1978
Edward Duncombe, Hale, GB;
Gordon Thatcher, Warrington, GB;
United Kingdom Atomic Energy Authority, London, GB;
Abstract
A liquid metal cooled fast breeder nuclear reactor of the kind wherein the fuel assembly is submerged in a pool of liquid metal coolant in a primary vessel which is housed in a concrete vault. The fuel assembly, which comprises a multiplicity of elongate fuel pins, is sub-divided into a plurality of elongate sub-assembly constructions which upstand side-by-side. The fuel assembly has an inner zone comprised mainly of fissile material and a surrounding outer zone comprised mainly of breeder material. The sub-assemblies in the outer zone include electro-magnetic braking devices for regulating the flow of coolant through the sub-assemblies and the magnetic fields of the electro-magnetic braking devices are temperature sensitive being arranged so that as the power output of the breeder sub-assemblies increases the electro-magnetic resistance to coolant flow is reduced thereby maintaining the temperature of the coolant outlets from the sub-assemblies substantially constant.