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Class 60/39.11 - Flame screen


Subclass of Class 60 - Power plants
Definition: Plants in which the safety means includes screens or equivalent
No. of patents: 32
Last issue date: 08/16/2011


NumberTitleIssue Date
7997058Apparatus for mixing substances
A combustor assembly for a gas powered turbine includes a premix section to mix a first selected volume of fuel with a selected oxidizer. The premix section includes an injector plate that includes a porosity according to selected characteristics, such as pore size,...
08/16/2011
7918081Flame prevention device
A gas turbine engine includes an engine casing concentrically disposed around the following: a low pressure compressor; a turbine; and a high pressure compressor having at least one bleed tube and at least one joint proximate to the engine casing; and at least one f...
04/05/2011
7516607Method and apparatus for mixing substances
A combustor assembly for a gas powered turbine includes a premix section to mix a first selected volume of fuel with a selected oxidizer. The premix section includes an injector plate that includes a porosity according to selected characteristics, such as pore size,...
04/14/2009
7513098Swirler assembly and combinations of same in gas turbine engine combustors
A fuel/air mixing apparatus, such as a main swirler assembly (400) comprising a sleeve (410), provides for additional air entry around the perimeter of a bore (440) through which passes a fuel/air mixture. The additional air reduces or eliminate...
04/07/2009
7370466Extended flashback annulus in a gas turbine combustor
An extended flashback annulus (520) is formed between an exterior surface (506) of a shroud or casing (508) associated with a main swirler assembly inner body (500) or other fuel/air mixing device and the inner surface (514) of an ...
05/13/2008
7273366Method and apparatus for destruction of vapors and waste streams
A burner assembly for the destruction of noxious vapors and other waste streams includes an inner burner element in the form of a sudden expansion burner and an outer burner element that encircles the inner burner element and forms an annular passageway between the ...
09/25/2007
7270539Method and apparatus for destruction of vapors and waste streams using flash oxidation
A burner assembly for the destruction of noxious vapors and other waste streams includes an inner burner element in the form of a sudden expansion burner and an outer burner element that encircles the inner burner element and forms an annular passageway between the ...
09/18/2007
7241137Flame arrestor
A flame arrestor for a flowing explosive gas (4), having a flame barrier (10, 20, 30) with a large number of defined passage gaps (17, 18), whose gap cross section is set with regard to the properties of the flowing gas (4), is cooled eff...
07/10/2007
7232097Fire shield method
Provided is a method for providing fire shield protection to an aircraft auxiliary power unit, or portion thereof, or to other aircraft systems. ...
06/19/2007
7093666Apparatus and method for providing fireproofing to an aircraft auxiliary power unit
A fire protection apparatus for an oil cooler in an aircraft auxiliary power unit compartment adapted to at least partially cover the oil cooler to thereby at least partially block flames from directly impinging the oil cooler in the event of a fire in the compartme...
08/22/2006
7017329Method and apparatus for mixing substances
A combustor assembly for a gas powered turbine includes a premix section to mix a first selected volume of fuel with a selected oxidizer. The premix section includes an injector plate that includes a porosity according to selected characteristics, such as pore size,...
03/28/2006
6931858Rotating pulse detonation system for a gas turbine engine
A pulse detonation system for a gas turbine engine having a longitudinal centerline axis extending therethrough includes a rotatable cylindrical member having a forward surface, an aft surface, and an outer circumferential surface, where a plurality of spaced detona...
08/23/2005
6834504Premix burner with high flame stability having a net-like structure within the mixing section
The invention relates to a premix burner with high flame stability for use in a heat generator, preferably in the combustion chamber of a gas turbine. Modern, lean-operated premix burners enable very low noxious emissions, but sometimes operate very close to the ext...
12/28/2004
6811122Flame arrestor to cover aircraft engines
Flame arrestor to cover aircraft engines made up of one ventilation wire grid (6), one upper metallic plate (9) where wire grid sits (6) on the edges of a circular hole (10) and a wall (25) which is located next to a chamfer (26...
11/02/2004
6792757Gas turbine combustor heat shield impingement cooling baffle
A heat shield for a combustor dome includes U-shaped baffles on the outer diameter area of the upstream surface of the heat shield. The baffles are clocked with respect to the impingement openings in the combustor dome. The baffles increase cooling of the heat shiel...
09/21/2004
6557349Method and apparatus for increasing heat transfer from combustors
A combustor for a gas turbine engine includes a deflector assembly that enhances heat transfer from the combustor and minimizes low cycle fatigue stresses induced within the combustor. The deflector assembly includes a plurality of deflectors secured to a...
05/06/2003
6330791Burner for operating gas turbines with minimal NOx emissions
A porous, low-conductivity material formed of metal or ceramic fibers provides the burner face of a gaseous fuel combustor for gas turbines capable of minimizing nitrogen oxides (NOX) emissions in the combustion product gases. A preferred burne...
12/18/2001
6282904Full ring fuel distribution system for a gas turbine combustor
A fuel nozzle system for use in a combustor utilized in a combustion turbine for reducing nitrogen oxides and other pollutants including an annular fuel distribution manifold separately mounted away from a diffusion nozzle, said annular manifold having a ...
09/04/2001
6199364Burner and process for operating gas turbines with minimal NOx emissions
A porous, low-conductivity material formed of metal or ceramic fibers provides the burner face of a gaseous fuel combustor for gas turbines capable of minimizing nitrogen oxides (NOx) emissions in the combustion product gases. A preferred burne...
03/13/2001
6056538Apparatus for suppressing flame/pressure pulsations in a furnace, particularly a gas turbine combustion chamber
An apparatus is provided for suppressing flame/pressure pulsations in a furnace, in which a flame is surrounded by a gas shroud stream having a higher flow speed, whereby a ring vortex formation is stopped. In order for this gas shroud stream to be able t...
05/02/2000
5964086Flashback system
Flashback of flames in premixed combustion systems is avoided by passing premixed fuel and air prior to combustion through a series of two or more nonaligned multi-channel monolith attached in series. The device is useful as a pre-ignition inhibitor, a de...
10/12/1999
5685139Diffusion-premix nozzle for a gas turbine combustor and related method
A fuel nozzle for a gas turbine includes a nozzle body having a tip portion, the nozzle body including an inner tube defining an axially extending air passage; an intermediate tube concentrically arranged and radially spaced from the inner tube and defini...
11/11/1997
5628181Flashback system
Flashback of flames in premixed combustion systems is avoided by passing premixed fuel and air prior to combustion through a series of two or more close coupled nonaligned multi-channel monoliths....
05/13/1997
5611196Fuel/air mixing device for gas turbine combustor
A fuel/air mixing device for two-stage, lean-flow, pre-mix combustion chambers in gas turbines. The primary and secondary combustors are formed as venturi nozzles with the primary venturi mounted tangentially to a flametube which surrounds the secondary v...
03/18/1997
5578828Flame sensor window coating compensation
Intensity of optical emission from a combustion flame within a gas turbine combustor is monitored through an optical window in the combustor wall by a primary detector. Because the window is susceptible to becoming coated with deposits during combustor op...
11/26/1996
5524846Fire protection system for airplanes
A system for protecting the strut and wing structure of an airplane from high temperatures proximate the exhaust nozzle end of a jet engine employs a set of outer spring metal fingers attached to the exhaust nozzle outer sleeve and which bear against the ...
06/11/1996
5331815Impact resistant combustor
An impact resistant cowl structure for a gas turbine engine mounted in front of the combustor dome of the engine having a concave dish-like center for capturing incident debris which is bounded by a pair of forward protruding elbows that transition into o...
07/26/1994
5271219Gas turbine engine combustor
A gas turbine engine annular combustor (16) has a bulkhead (19) at its upstream end which is protected by an annular array of heatshields (32). Each of the heatshields (32) is spaced apart from the bulkhead (19) by flanges (37, 38,39,40) on the upstream h...
12/21/1993
4478045Combustors and gas turbine engines employing same
Combustors [22] which employ such features as rotary cup fuel atomizers and the latter in conjuction with CIVIC combustion to enhance flame performance, to produce efficient combustion over a wide operating range, and to eliminate the problems typically e...
10/23/1984
4067190Catalytic gas turbine combustor with a fuel-air premix chamber
A combustor for a gas turbine is shown having a catalytic reactor element to promote low temperature combustion of the fuel. An air-fuel premix chamber is provided in the upstream end of the combustor arrangement to produce a mixture which is substantiall...
01/10/1978
4045159Combustion apparatus
A combustion apparatus having a mixing chamber, a combustion chamber, a flame holes plate disposed therebetween for forming a combustion flame at a flame projecting aperture thereof, a choke plate on the mixing chamber side of the flame holes plate in con...
08/30/1977
4015954Laminar flow flame arrestor
A flame arrester having a rectangular housing of internal width W, length L and heighth H filled with a plurality of contiguous convoluted planar laminae. Each lamina is comprised of a thin sheet of metal formed with a plurality of spaced parallel shallow...
04/05/1977
 
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