Gas turbine heat-exchanging system using flexible locating members for torque transmission

Claim 1

A heat-exchanging system for a gas turbine engine comprising a regenerator core mounted rotatably in said engine, said core having a ceramic interior portion porous to gases flowing essentially parallel to the core rotational axis, the exterior surface of said core having a plurality of flat portions thereon, an annular driving means fitting loosely around said core, and a pluralitY of locating members corresponding numerically to said plurality of flat portions, one of said locating members being positioned between the flat portions of said core and said driving means, said locating members permitting slight relative radial and axial movement while preventing tangential movement between said core and said driving means, each locating member comprising a pad of elastomeric material having a metal plate bonded to one side, said pad being located against the flat portions on said core with the metal plate on the radial exterior of the pad, said metal plate having a groove parallel to the rotational axis of the core, the inner surface of said driving means having corresponding grooves therein, and circular metal members located in said grooves, said metal members bearing against the edges of the grooves to transmit driving torque from the driving means to the core.