Patent ID: 7004237
Filing Date: 2006-02-28
Classification: F28D,F28F

Abstract:
1. A heat exchanger comprising a housing including a cylindrical shell closed by a top cover member and a bottom cover member, a plurality of first heat transfer plates and a plurality of second heat transfer plates located within said cylindrical shell with said first heat transfer plates interleaved with said second heat transfer plates in alternating relationship in a plate stack and with spaces between said first and second heat transfer plates, each of said first and second heat transfer plates being formed with channels on opposite sides of said each of said heat transfer plates that provide first and second fluid passages for fluid flow between the heat transfer plates, said first fluid passages for a first fluid in alternate spaces and said second fluid passages for a second fluid in remaining spaces, and a spring device located in said housing adjacent one end of said plate stack, said spring device supporting said plate stack and compensating for any expansion or contraction of said heat transfer plates along the longitudinal axis of the housing during operation of said heat exchanger.