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US 5,685,142 AGranted
Gas turbine engine afterburner
AssigneeUnited Technologies Corporation
InventorsKeith S. Brewer, Ronald T. Clawson, Steven B. Johnson
Life of this patent
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AssigneeUnited Technologies Corporation
InventorsKeith S. Brewer, Ronald T. Clawson, Steven B. Johnson
Estimating the term…
An afterburner 20 for a gas turbine engine 10 has a fuel spray ring 24a for injecting fuel into the afterburner, a flameholder gutter 34a for stabilizing combustion of a fuel-air mixture flowing through the afterburner, and an ignitor 35 for initiating combustion and includes an enclosure 50 attached to the gutter. The enclosure has radially inner and outer walls 52, 54 and circumferentially spaced apart webs 60, 62 extending between the walls to define a radially and circumferentially bounded chamber 64. Each web has a forward opening 72 and an aft opening 74 so that a portion of the spray ring and a portion of the gutter are embraced by the enclosure. The enclosure is ideally circumferentially aligned with the ignitor and regulates the fuel-air ratio within and in the vicinity of the chamber to ensure reliable lighting of the afterburner and flawless advancement to full afterburning operation.
An afterburner for a gas turbine engine having a fuel spray ring for injecting fuel into the afterburner, a flameholder gutter for stabilizing combustion of a fuel-air mixture flowing longitudinally through the afterburner, and an ignitor for initiating combustion, the afterburner characterized by an enclosure defining a radially and circumferentially bounded chamber, the enclosure embracing a portion of the spray ring and a portion of the gutter for controlling the fuel-air ratio within and in the vicinity of the chamber.
An afterburner for a gas turbine engine having a fuel spray ring for injecting fuel into the afterburner, a flameholder gutter for stabilizing combustion of a fuel-air mixture flowing longitudinally through the afterburner, and an ignitor for initiating combustion, the afterburner characterized by an enclosure attached to the gutter, the enclosure having radially inner and outer walls and circumferentially spaced apart webs extending between the walls, the walls and webs defining a radially and circumferentially bounded chamber with a longitudinally extending flowpath therethrough, each web having a forward opening and an act opening so that a portion of the spray ring and a portion of the gutter are embraced by the enclosure and the fuel-air ratio within and in the vicinity of the chamber is maintained within a desirable range.
Dependencies are inferred from the claim text.