초록 ▼

A fuel injection assembly for a combustion chamber of a gas turbine engine is disclosed in which a plurality of premixing chambers are in communication with the combustion chamber and adjacent pairs of the premixing chambers are connected to a single prevapoization chamber by prevaporization conduit

A fuel injection assembly for a combustion chamber of a gas turbine engine is disclosed in which a plurality of premixing chambers are in communication with the combustion chamber and adjacent pairs of the premixing chambers are connected to a single prevapoization chamber by prevaporization conduits. Fuel is injected into the prevaporization chamber via a fuel injector and is mixed with oxidizer passing into the prevaporization chamber such that the fuel/oxidizer mixture has a richness exceeding the stoichiometric ratio. The fuel/oxidizer mixture passes into the prevaporization conduits through a diaphragm opening and, upon entering the premixing chamber, is mixed with additional oxidizer such that the fuel/oxidizer mixture in each premixing chamber has a richness less than the stoichiometric ratio. The premixing chambers are bounded by generally tubular walls, a portion of each adjacent tubular wall forming a protective hood between the fuel injector and the combustion chamber so as to prevent self-ignition of the fuel/oxidizer mixture in the prevaporization chamber. Oxidizer entering the premixing chambers passes through one or more oxidizer swirlers to assure a complete mixing of the fuel and oxidizer prior to its passing into the combustion chamber.

대표청구항 ▼

A fuel injection assembly for a combustion chamber of a gas turbine engine, the combustion chamber having an exhaust opening, the fuel injection assembly comprising: a) a plurality of premixing chambers in communication with the combustion chamber; b) a prevaporization chamber; c) a fuel injector to

A fuel injection assembly for a combustion chamber of a gas turbine engine, the combustion chamber having an exhaust opening, the fuel injection assembly comprising: a) a plurality of premixing chambers in communication with the combustion chamber; b) a prevaporization chamber; c) a fuel injector to inject fuel into the prevaporization chamber; d) prevaporization conduits connecting the prevaporization chamber to the plurality of premixing chambers enabling fuel injected into the prevaporization chamber to pass into the premixing chambers; and, e) means to introduce oxidizer into the prevaporization chamber and the premixing chambers such that the fuel/oxidizer mixture in the prevaporization chamber has a richness exceeding a stoichiometric ratio and the fuel/oxidizer mixture in each premixing chamber has a richness less than the stoichiometric ratio.