Modine Manufacturing Company

Richard G Parkhill

Zalman P Saperstein

Alan Paul Meissner

Andrew J Cottone

Ronald D Tait

Jeffrey A Bahr

A heat exchanger/evaporator for transferring heat from a first heat exchange fluid to a liquid to be evaporated into a gaseous second heat exchange fluid that includes a thermally conductive element separating a first flow path for the first heat exchange fluid and a second flow path for the second heat exchange fluid. A first surface is on the element in heat exchange relation with the first flow path and a second surface is on the element opposite the first surface and is in heat exchange relation with the second flow path A hydrophilic coating is bonded on part of the second surface and includes a powder of nominally spherically shaped particles including nickel, chromium, aluminum, cobalt and yttrium oxide bonded together with a braze metal predominantly made up of nickel, chromium and silicon and diffused into the nominally spherically shaped particles and the second surface. Also disclosed is a composition useful in forming a hydrophilic surface and a method of making a heat exchanger/evaporator.

Evaporative hydrophilic surface for a heat exchanger, method of making the same and composition therefor

Potential difficulties in surface modification of a substrate are avoided by using a mixture that includes a ceramic powder, a brazing material and a flux. Exposure to an elevated temperature activates the flux and at least partially melts the brazing material. Upon cooling, the melt solidifies to bond the ceramic powder to the substrate surface an create the modification.

Growing community of inventors

Racine, WI, United States of America

Richard G Parkhill