Multipoint injector for turbomachine
AssigneeSnecma
InventorsDidier Hippolyte Hernandez, Thomas Olivier Marie Noel
Life of this patent
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Abstract
A multipoint injector for a turbomachine according to which any risk of fuel coking is eliminated is disclosed. The multipoint fuel which is liable to stagnate inside the circuit thereof is cooled uniformly, due to the formation of continuous baffles which each communicate with at least one separate circulation channel and of which the peripheral baffles open out into a fuel admission chamber arranged in a zone diametrically opposing the circulation channels and which communicates with the injection nozzle for pilot fuel in order to achieve uniform supply and cooling of the injector.
Claims2
A method of manufacturing a ferrule intended to be assembled in a multipoint fuel injector, wherein multipoint injection channels are perforated on a periphery of the ferrule, the method comprising:
- machining a first one-piece part in order to obtain a large hollow cylindrical ring;
- machining a second one-piece part in order to obtain a small hollow cylindrical ring of dimensions adapted to be housed inside the large hollow cylindrical ring;
- sealed soldering between two bases of the hollow rings;
- and
- simultaneously perforating the two hollow rings soldered to one another in order to obtain multipoint injection channels.
Dependencies are inferred from the claim text.