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Advanced Fuel Research, Inc.

Stephen C Bates

Peter R Solomon

Robert M Carangelo

David G Hamblen

This invention relates to a fueling process that allows complete combustion with air in the combustor of an aircraft traveling at a speed greater than the speed of sound. A process is described to inject a jet of solid hydrogen particles admixed in liquid helium through the combustor wall to achieve extremely rapid mixing of hydrogen throughout the supersonic airstream of the combustor of a high speed vehicle. Mixing on a molecular scale is so rapid that complete and efficient combustion occurs within the combustor.

Technique for high mixing rate, low loss supersonic combustion with

A method and system for fabricating porous polycrystalline diamond material whose volume is described by a dimension larger than 1 mm, with no upper limit on size. A net shape diamond part is fabricated by compacting small diamond particles into a mold and then performing chemical vapor deposition (CVD) growth of diamond on the particles until they are joined into a porous whole. The CVD growth of diamond is achieved by photofragmentation of vapor phase Fullerene, C.sub.60, molecules in the pores. C.sub.60 molecules are vaporized from solid C.sub.60 at a temperature of about 800.degree. C. The vapor diffuses into the voids between the diamond particles in the mold. The vapor is then subjected to intense illumination by a laser which causes the C.sub.60 molecules fragment. The deposition of these fragments causes diamond growth to occur on all surfaces around the pores between the particles. Continual replenishment of the C.sub.60 by the vapor source allows continuous deposition. The transparency of the diamond particles allows penetration of the laser illumination into the volume of the particles. After sufficient deposition and growth, diamond connections are made between the particles, making the entire mass a porous, single diamond entity.

Technique for the fabrication of bulk porous diamond

An aerodynamically cleaned heat-exchanger is used in heating apparatus in which the radiant energy of a dirty fuel, such as coal or char, is efficiently recovered while the exposed heat-exchange components are protected from the deleterious combustion products.

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Glastonbury, CT, United States of America

Stephen C Bates