The Boeing Company

USA as Represented by Secretary of the Navy

John T Pogson

Roger L Shannon

Dale F Watkins

James L Franklin

Ted J Kramer

Donald A Streck

Robert H Hamasaki

The heat pipe has a condensing area at one end and an evaporating area at the other end. An ion drag pump is within the condensing area to receive dielectric refrigerant condensate in its inlet. There is a liquid carrying tube having one end connected to the pump outlet and having its other end terminating adjacent the evaporating area to discharge refrigerant condensate therein. The evaporating area has heat receiving flow paths into which the condensate is adapted to flow and be vaporized, there being a vapor flow path from the evaporating area through which the vaporized refrigerant returns to the condensing area. The method includes cooling one end of the heat pipe to liquefy refrigerant therein to form a condensate, flowing the condensate into an ion drag pump and applying a sufficiently high voltage across a cathode and anode of the pump to produce ions in the refrigerant condensate, the ions then being accelerated toward the anode so as to create fluid motion and pumping action through the pump inlet. The condensate is thereby pumped through a closed-wall flow path to the other end of the heat pipe to which heat is applied to evaporate the refrigerant into a vapor. The vapor from the other end is then flowed to the one end of the pipe in which the condensate is formed by cooling.

Electrostatically pumped heat pipe and method

A device for generating an air jet without the use of moving parts is proed. High voltage is used to create a corona discharge electric wind in a ducted, compact, portable generator that can be used for augmentation cooling applications where high voltage is available.

Electric wind generator

A flexible heat pipe employing external tube arteries in the adiabatic region to transfer the heat pipe working fluid from the wick contained in the condenser portion to the wick contained in the evaporator section.

External tube artery flexible heat pipe

Growing community of inventors

San Jose, CA, United States of America

John T Pogson