Patent ID: 6259064
Filing Date: 2001-07-10
Classification: A21B

Abstract:
A method of transferring heat between a stream of temperature controlled fluid and a splash area on a product against which the stream impinges on the surface of the product in an impingement heat transfer device comprising the steps of:providing an air supply duct and an air return duct having a partition wall wherein a tube has one end communicating with the inside of the air supply duct and another end extending through an opening in the air return duct, said opening in the air return duct having an inside diameter and said tube having an outside diameter, said outside diameter of the tube being less than said inside diameter of the opening in the air return duct to form an inlet into the air return duct encircling the tube;circulating air to reduce pressure in the air return duct and increase pressure in the air supply duct such that a stream of air flows through and out of the tube and spent air is drawn through the opening encircling the tube into the air return duct;collecting each volume of spent fluid adjacent the stream of fluid that was diffused to form the spent volume; andimparting relative movement between the product and the stream wherein the splash area moves across the surface of the product such that heat is transferred substantially uniformly over the surface of the product.