Patent ID: 7766025

Claim:
A regenerative heat exchanger assembly comprising; a first heat exchanger including a plurality of first heat recovery media for transferring heat, a second heat exchanger including a plurality of second heat recovery media for transferring heat, an inlet valve assembly in fluid communication with said first and second heat exchangers, an outlet valve assembly in fluid communication with said first and second heat exchangers, said inlet valve assembly having two corresponding pairs of inlet valve ports, said inlet valve assembly including two inlet poppet discs each being movable between one of said corresponding pairs of inlet valve ports for defining multiple flow passages therethrough, said outlet valve assembly having two corresponding pairs of outlet valve ports, said outlet valve assembly including two outlet poppet discs each being movable between one of said corresponding pairs of outlet valve ports for defining multiple flow passages therethrough, a first inlet rod extending from one of said inlet poppet discs to a first inlet distal end, a first outlet rod extending from one of said outlet poppet discs to a first outlet distal end, an eccentric mechanical drive including a first crank for rotation about an axis, a first linkage assembly connected to said first crank for orbital movement about said axis, and said first linkage assembly interconnecting said first inlet distal end to said first outlet distal end to operate one of said inlet poppet discs and one of said outlet poppet discs in tandem.