Patent ID: 6311685
Filing Date: 2001-11-06
Classification: F24C

Abstract:
A heat exchanger for ovens for food cooking, in which the heat exchanger surrounds a radial fan and is engaged to a burner supplied by a blower; the heat exchanger comprising a first part of pipe into which combustion gases flow formed in a single direction around the radial fan and bifurcating into at least two pipes which extend in the single direction around the radial fan;wherein the at least two pipes extend around the radial fan and axes of the at least two pipes lie in parallel planes to a plane containing an axis of the first part of pipe;wherein the parallel planes containing the axes of the at least two pipes and the axis of the first part of pipe are perpendicular to an axis of rotation of the radial fan;wherein the at least two pipes substantially surround the radial fan;wherein terminal parts of the at least two pipes open into a manifold having a chamber through which initial parts of the at least two pipes pass; the manifold leading directly to a discharge; andwherein the manifold and the chamber of the manifold are parallelepiped in shape.