Patent ID: 11879691
Assignee: GENERAL ELECTRIC COMPANY
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A heat exchanger for exchanging heat between two fluid flows in counter-flow arrangement comprising:
a core region having opposed distal ends and defining a length therebetween, the core region including a first set of heat exchanging passageways disposed at least partially therein the core region and a second set of heat exchanging passageways disposed at least partially therein the core region; and
a plenum region, disposed adjacent each one of the opposed distal ends of the core region, each plenum region including a fluid inlet plenum, a fluid outlet plenum and a tube plate disposed therebetween the fluid inlet plenum and the fluid outlet plenum, each plenum region defined by non-planar ends,
the first set of heat exchanging passageways defining a first tube-side fluid flow path for a first fluid and the second set of heat exchanging passageways defining a second tube-side fluid flow path for a second fluid, wherein the second set of heat exchanging passageways have a length longer than the first set of heat exchanging passageways, each of the heat exchanging passageways of the first set of heat exchanging passageways and the second set of heat exchanging passageways extending from one of the fluid inlet plenums to one of the fluid outlet plenums, and wherein each of the first set of heat exchanging passageways are in contact against at least one of the second set of heat exchanging passageways; and
wherein the core region includes a metal cast about the heat exchanging passageways of the first set of heat exchanging passageways and the second set of heat exchanging passageways, such that when the casting process is complete, the metal secures the first set of heat exchanging passageways in contact against at least one of the second set of heat exchanging passageways.