Inert gas generator based on air jet engine

• US 4,113,019 A
• Filed: 04/22/1976
• Issued: 09/12/1978
• Est. Priority Date: 08/13/1975
• Status: Expired due to Term

• Current Assignee: Anatoly Ivanovich Kozljuk, Georgy Georgievich Sobolev, Leonid Denisovich Vishnevsky, Mikhail Vasilievich Kolyshenko, Valentin Vasilievich Vasilenko, Valery Leonidovich Makarenko, Viktor Ivanovich Kukhno
• Original Assignee: Anatoly Ivanovich Kozljuk, Georgy Georgievich Sobolev, Leonid Denisovich Vishnevsky, Mikhail Vasilievich Kolyshenko, Valentin Vasilievich Vasilenko, Valery Leonidovich Makarenko, Viktor Ivanovich Kukhno
• Inventors: Vishnevsky, Leonid Denisovich, Kolyshenko, Mikhail Vasilievich, Vasilenko, Valentin Vasilievich, Kozljuk, Anatoly Ivanovich, Kukhno, Viktor Ivanovich, Makarenko, Valery Leonidovich, Sobolev, Georgy Georgievich
• Primary Examiner(s): Peters, Jr., Joseph F.
• Assistant Examiner(s): Mar, Michael
• Application Number:
  US05/679,437
• Time in Patent Office: 873 Days
• Field of Search: 169/12, 169/11, 239/265.17, 239/265.39, 62/121, 62/269
• US Class Current: 169/12
• CPC Class Codes: F02C 6/04 Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output F02C6/18 takes precedence ; for a fluidised-bed combustor F02C3/205

Abstract

Installed at the outlet of the afterburning chamber is a diffuser whose narrow section forms a base for the afterburning chamber. The joint between the afterburning chamber and the diffuser is enclosed by a depression chamber which has a manifold with a circular slot for admitting compressed inert gas, e.g. nitrogen, from the outside. The diffuser accommodates a nozzle for feeding freon into the discharged gas flow. This increases the capacity, head and fire-fighting efficiency of the generator.

Claims

1. An inert gas generator for extinguishing fires comprising:

an air jet engine with fuel supply means adapted to produce exhaust gases;

said air jet engine communicating with an ejector channel with fuel supply means, and adapted to draw in outside air;

said ejector channel communicating with an afterburning chamber with cooling means and means for supplying an inert gas;

said afterburning chamber communicating with a low pressure depression chamber adapted to limit access of outside air into the flow of said gases;

said depression chamber communicating with manifold means for supplying an inert gas to the gas flow;

said manifold means communicating with a diffuser with means for feeding halogenated hydrocarbons into the gas flow which exits at high velocity.

2. The inert gas generator of claim 1 wherein said fuel supply means are adapted to supply fuel to the engine and afterburning chamber in amounts which insure substantially complete combustion.

3. The gas generator of claim 1 wherein the afterburning chamber cooling means is in the form of a water cooled jacket.

4. The inert gas generator of claim 1 wherein the inert gas manifold means includes circular slots mounted near the outlet of the depression chamber for admission of compressed inert gas.

5. A generator according to claim 1 wherein the diffuser of the depression chamber has a nozzle intended to feed freon into the jet of the discharged gas.