Turbomachine with separate fuel injection systems, using identical sealing joints
AssigneeSnecma
InventorsFrançoise DesChamps, Alain Meriguet, Christophe Pieussergues, Jean-Luc Voisembert
Life of this patent
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Abstract
An aircraft turbomachine with a housing, and first and second fuel injection systems, where each system includes an injector fitted with an attachment plate traversed by three mounting holes positioned according to a first configuration for the first system and according to a second configuration distinct from the first for the second system. Each system also includes a reception device installed on the housing, a sealing joint interposed between the plate and the reception device, and securing screws which attach the plate on to its reception device. Sealing joints are identical for the first and second fuel injection systems.
Claims15
A unit for an aircraft turbomachine comprising:
- a housing centered on a longitudinal axis of a turbomachine;
- multiple first fuel injection systems;
- and
- multiple second fuel injection systems,
- wherein each first system comprises:
- a first attachment plate with first attachment plate mounting holes;
- a first fuel injector fitted with the first attachment plate according to a first configuration on said first attachment plate;
- a first reception device installed on said housing, receiving said first attachment plate with an orifice traversed by said first fuel injector, with first reception device mounting holes located around the orifice;
- a first sealing joint interposed between said first attachment plate and said first reception device, where said first joint defines an opening traversed by said first injector, with first sealing joint mounting holes located around the opening;
- and
- first securing screws, each extending successively through one of the mounting holes of the first plate, one of the mounting holes of the first sealing joint, and one of the mounting holes of the first reception device, where said first screws enable the first plate to be attached on to the first reception device,
- wherein each second system comprises:
- a second attachment plate with second attachment plate mounting holes;
- a second fuel injector fitted with a second attachment plate traversed by the second attachment plate mounting holes positioned according to a second configuration on said second plate, where the position of the second attachment plate mounting holes in said second configuration is different from the position of the first attachment plate mounting holes in said first configuration;
- a second reception device installed on said housing, receiving the second attachment plate with an orifice traversed by said second fuel injector, with second reception device mounting holes located around the orifice;
- a second sealing joint interposed between said second plate and the said second reception device, where the second joint defines an opening traversed by the second injector, with second sealing joint mounting holes located around the opening;
- and
- second securing screws, each extending successively through one of the mounting holes of the second plate, one of the mounting holes of the second sealing joint, and one of the mounting holes of the second reception device, where the second screws enable the second plate to be attached on to the second reception device, and
- wherein the first and second sealing joints are identical.
Dependencies are inferred from the claim text.