US Government As Represented by the Secretary of the Army

Daniel K Yu

William G Rouse

Christian S Gardner

Charles D Corum

A particle smoke generator having a gas turbine for combusting air and fu and for discharging heated exhaust combustion gases. A venturi tube conveys the heated exhaust gases into a low-pressure region away from the combustion means. A supply of particulate smoke material is joined to a supply tube for conducting the particulate smoke material from the supply to the venturi tube. In the venturi tube the particulate smoke material is deagglomerated by the exhaust gases. The deagglomerated particles and gases are diffused in a diffuser nozzle to generate smoke in the atmosphere.

Particle smoke generator and method

A heat exchanger and heater of a tube type is provided for heating a liquid n a coiled type housing having an inlet and an outlet for liquid of various types. Hot materials in a gas flow are introduced into the system and a liquid is vaporized to heat the heat exchanger system. In a second embodiment of the shell type of heat exchanger and heater is used in the heating of the input liquid. The third embodiment of the heat exchanger and heater system utilizes a frusto-conical shell with a heat coil centrally located in the shell, while a fourth embodiment of the heat exchanger and heater utilizes a cylindrical coil for the liquid to be heated and a temperature sensor for sensing the temperature in the system at end point.

Heat exchanger and heater

The temperature of heated exhaust gases from a gas turbine is increased to value sufficient to vaporize fog oil to form smoke. The turbine itself is unmodified and requires no bleed air control valve at the air inlet to the compressor to regulate exhaust gas temperature.

Growing community of inventors

University Park, MD, United States of America

Daniel K Yu