Accession Number : ADD013338

Title :   Electrically Heated Non-Toxic Smoke Generator.

Descriptive Note : Patent, Filed 4 Apr 80, patented 14 Sep 82,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Swiatosz, Edmund

Report Date : 14 Sep 1987

Pagination or Media Count : 6

Abstract : A non-toxic smoke generator for simulating the smoke of a fire includes an inner cylindrical shell surrounded in spaced relation by a thermally insulated outer casing to form an air flow passage there between through which compressed air heated by electric air heaters is caused to flow in a helical pattern to heat the shell to a temperature above the vaporization temperature of a vaporizable smoke substance. The smoke substance, such as propylene glycol, polyethylene glycol 200 or mineral oil, is pumped from a reservoir through a supply pipe having a coiled preheating portion disposed in the space between the shell and housing and is sprayed through a wide spray atomizing nozzle into heated vaporization chamber where it is vaporized and discharged as nontoxic smoke. Keywords: Training devices. (Patents)

Descriptors :   *ELECTRIC HEATERS, *PATENTS, *SMOKE GENERATORS, AIR FLOW, AIR HEATERS, ATOMIZATION, FIRES, SIMULATORS, PROPYLENE GLYCOL, POLYETHYLENE, GLYCOLS, CHAMBERS, COMPRESSED AIR, CYLINDRICAL BODIES, EXTERNAL, HEAT, HELIXES, MINERAL OILS, NOZZLES, PATTERNS, SHELLS(STRUCTURAL FORMS), SMOKE, SPRAY NOZZLES, TEMPERATURE, THERMAL INSULATION, TOXICITY, TRAINING DEVICES, VAPORIZATION

Subject Categories : Pyrotechnics

Distribution Statement : APPROVED FOR PUBLIC RELEASE