Patent 7754034 was granted and assigned to United Technologies on July, 2010 by the United States Patent and Trademark Office.
Apparatus and methods are provided for cooling workpieces. A cooling gas is directed toward a surface of a workpiece. The workpiece is moved relative to the flow of cooling gas. The cooling gas may include at least a first component that is gaseous at a reference ambient condition and a second component that is a liquid at the ambient condition. The second component may be delivered as a gas or as droplets.