E.i. Dupont De Nemours and Company

Cesaroni Technology Incorporated

Gordon James Clarke

Anthony Joseph Cesaroni

Shailesh Ratilal Doshi

Kenneth Earl Stevens

Myron Bruce Babcock

Maurizio Parrino

Enrico Simonato

Alberto Mannoni

Michael Nicola Rozyle

Mahender Kumar Khurana

This invention relates to fabrication of tube bank style heat exchangers and similar assemblies. It provides a novel device and a method for presenting and feeding multiple relatively flexible tubes in a predetermined spaced apart manner, and subsequently threading them through corresponding holes in tube-sheets, baffles or similar components during fabrication of the core structure, for example a heat exchanger core.

Device and method for positioning flexible tubes into a core and articles made therefrom

A heat exchanger comprising plates of thermoplastic tubes arranged in a way which minimizes the thermal resistance at the outer surface of the tubes preferably to not more than 5 times the resistance to heat transfer at the inside of the tubes. The tubes are arranged in the tube plates in groups that can be flat or slightly wavy, such as undulating in a periodic manner, or offset with open spaces facing groups of tubes in alternating rows. This is done in a way that maximizes turbulence outside the tubes and minimizes vortices which can trap coolant in the interstices between tubes.

Heat exchanger with tube plates

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Markham, Canada

Gordon James Clarke