| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 431114000 | WITH MEANS ATTENUATING SOUND OR PULSATION | 11 |
| 20090061369 | Multi-response time burner system for controlling combustion driven pulsation - A combustion system having at least one wall enclosing a combustion chamber and forming a plurality of burner or burner nozzle openings. Disposed within each of the openings is a premix burner or burner nozzle, each of which has a premixed fuel/oxidant outlet proximate the combustion chamber and a fuel/oxidant inlet distal from the combustion chamber. At least a portion of the premix burners or burner nozzles are sized to produce different fuel/oxidant delivery disturbance response times in response to a pressure disturbance within the combustion system. Differences in fuel/oxidant delivery response times are achieved by using burners or burner nozzles having different internal dimensions, different volume flow rates, and, optionally, by varying the fuel/oxidant ratios of the mixtures flowing through the burners or burner nozzles. | 03-05-2009 |
| 20090162802 | ATTENUATING CUMBUSTION NOISE OF PREMIXED FLAMES - Disclosure is made of methods, systems, and apparatus for changing characteristics of noise of premixed flames supported on burners by heating burner passageways by an amount that attenuates combustion noises arising from premixed flames. Alternatively, attenuation occurs by controlling a temperature differential between a first point relative to a premixed flame and at least a second point in an uncombusted portion of a fuel/oxidizer mixture causing the flame | 06-25-2009 |
| 20100119984 | ABATEMENT SYSTEM - Abatement systems are described. An abatement system includes a combustion chamber and a fuel burner ring coupled with the combustion chamber. Another abatement system includes a combustion chamber and a fuel flow control mechanism coupled with the combustion chamber. | 05-13-2010 |
| 20100167220 | Sound Reduction Provision for Heat Apparatuses - A heat apparatus ( | 07-01-2010 |
| 20110165527 | Method and Apparatus of Combustor Dynamics Mitigation - A thermo acoustic damper for a combustor includes at least one resonator in flow communication with a flow channel of the combustor. The resonator includes an enclosed volume and at least one baffle plate positioned in the enclosed volume dividing the enclosed volume into at least two volumes. A plurality of feed tubes extend inwardly into at least one of the at least two volumes from the flow channel and are configured to reduce thermo acoustic dynamics of the combustor. A combustor includes an enclosed combustor cap volume and a plurality of fuel nozzles extending through the combustor cap volume. At least one baffle plate is located in the combustor cap volume dividing the combustor cap volume into at least two volumes. A plurality of feed tubes extend inwardly into at least one of the at least two volumes from a flow channel. | 07-07-2011 |
| 20110311924 | Low Pressure Drop, Low NOx, Induced Draft Gas Heaters - An improved induced draft gas burner assembly ( | 12-22-2011 |
| 20120100495 | COMBUSTOR CONFIGURATIONS - The present specification generally relates to improvements to combustors such as burners and engines. In one aspect, the specification presents an acoustically enhanced ejector system which can be used as part of an intake system for a combustor. In another aspect, the specification teaches the use of a combustor combustion chamber as an oscillator to magnify a harmonic frequency of a pulsating frequency of the combustor. In still other aspects, the specification presents a combustion chamber having an inlet with a plurality of tangentially spaced apertures, and an in-line intake system connected to the apertures. | 04-26-2012 |
| 20120107754 | COMBUSTOR CONFIGURATIONS - The present specification generally relates to improvements to combustors such as burners and engines. In one aspect, the specification presents an acoustically enhanced ejector system which can be used as part of an intake system for a combustor. In another aspect, the specification teaches the use of a combustor combustion chamber as an oscillator to magnify a harmonic frequency of a pulsating frequency of the combustor. In still other aspects, the specification presents a combustion chamber having an inlet with a plurality of tangentially spaced apertures, and an in-line intake system connected to the apertures. | 05-03-2012 |
| 20120288807 | Combustor casing for combustion dynamics mitigation - A dampener or resonator is provided within a combustor casing to mitigate combustion dynamics. The combustor casing head end volume is reduced by the resonator to mitigate combustion dynamics. The resonator is formed by a ring shaped plate that carries a continuous inwardly protruding wall or segmented inwardly protruding wall portions. The resonator can be a stand alone part that is inserted into the combustor casing or it can be integrally formed with the combustor casing. | 11-15-2012 |
| 20130164697 | Combustion Apparatus - A combustion apparatus has a burner, a combustion box containing therein a heat exchanger, an exhaust passage in fluid communication with the combustion box, a fan for supplying the burner with combustion air, and a predetermined length of air suction duct in fluid communication with a suction opening formed in a fan casing. The air suction duct has: on a downstream end thereof, an outlet cylindrical portion which is smaller in diameter than a diameter of the suction opening in the fan casing and which lies opposite to the suction opening; and a flange portion which overhangs radially outward from a perimeter of the air suction duct adjacent to the outlet cylindrical portion into contact with that peripheral portion of the fan casing which forms the suction opening. The flange portion is provided with an auxiliary suction opening in fluid communication with a space surrounding the outlet cylindrical portion. | 06-27-2013 |
| 20140134551 | Combustion Instability Suppression System Using Heat Insulating Flameholding Material - Combustor. The combustor includes a duct through which an air/fuel mixture flows, including a flame-anchoring region. An insulating material is located proximate the flame-anchoring anchoring region whereby combustion instability is decreased. | 05-15-2014 |
