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US 11,002,196 B2Granted
Combustion chamber comprising two types of injectors in which the sealing members have a different opening threshold
AssigneeSafran Aircraft Engines
InventorsGuillaume Aurélien Godel, Christophe Chabaille, Thomas Olivier Marie Noel
Life of this patent
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Abstract
The invention relates to a combustion chamber for a turbomachine. The combustion chamber comprises at least one spark plug, at least one fuel injector of a first type of injector that is located facing the spark plug, and at least one fuel injector of a second type. Each fuel injector comprises a mobile sealing member that is configured to open when the fuel pressure exceeds an opening threshold. The opening threshold of the mobile sealing member of the injector of the first type is strictly less than the opening threshold of the mobile sealing member of the injector of the second type.
Claims15
A combustion chamber for a turbomachine, comprising:
- a spark plug,
- a first fuel injector facing the spark plug,
- a second fuel injector, farther away from the spark plug than the first fuel injector,
- each of the first fuel injector and the second fuel injector comprising:
- an opening for intake of fuel,
- a first fuel outlet,
- a mobile sealing member configured to be mobile between an open position and a closed position, wherein in the open position fuel passes through in a direction of the first fuel outlet and wherein in the closed position the intake opening is plugged by the mobile sealing member, wherein the mobile sealing member is configured to open when a fuel pressure applied to the mobile sealing member exceeds an opening threshold of the mobile sealing member,
- a first elastic return means configured to bias the mobile sealing member towards the closed position,
- a second fuel outlet,
- a mobile dosing member configured to be mobile between an open position wherein fuel passes through the mobile dosing member in a direction of the second fuel outlet and a closed position wherein the circulation of fuel towards the second fuel outlet is prevented,
- a second elastic return means configured to bias the mobile dosing member towards the closed position,
- wherein the mobile dosing member is configured to open when the fuel pressure exceeds an opening threshold of the mobile dosing member that is greater than the opening threshold of the mobile sealing member of the fuel injector, and
- wherein the first fuel outlet fluidly communicates with a primary circuit of the fuel injector, wherein the second fuel outlet fluidly communicates with a secondary circuit of the fuel injector, and
- wherein the opening threshold of the mobile sealing member of the first fuel injector is less than the opening threshold of the mobile sealing member of the second fuel injector.
11 more elements
A turbomachine comprising a combustion chamber comprising:
- a spark plug,
- a first fuel injector, located facing the spark plug,
- a second fuel injector, farther away from the spark plug than the first fuel injector,
- each of the first fuel injector and the second fuel injector comprising:
- an opening for intake of fuel,
- a first fuel outlet,
- a mobile sealing member configured to be mobile between an open position wherein fuel passes through in a direction of the first fuel outlet and a closed position wherein the intake opening is plugged by the mobile sealing member, wherein the mobile sealing member is configured to open when a fuel pressure applied to the mobile sealing member exceeds an opening threshold of the mobile sealing member,
- a first elastic return means configured to bias the mobile sealing member towards the closed position,
- a second fuel outlet,
- a mobile dosing member configured to be mobile between an open position wherein fuel passes through the mobile dosing member in a direction of the second fuel outlet and a closed position wherein the circulation of fuel towards the second fuel outlet is prevented,
- a second elastic return means configured to bias the mobile dosing member towards the closed position,
- wherein the mobile dosing member is configured to open when the fuel pressure exceeds an opening threshold of the mobile dosing member that is greater than the opening threshold of the mobile sealing member of the fuel injector, and
- wherein the first fuel outlet fluidly communicates with a primary circuit of the fuel injector, wherein the second fuel outlet fluidly communicates with a secondary circuit of the fuel injector and
- wherein the opening threshold of the mobile sealing member of the first fuel injector is less than the opening threshold of the mobile sealing member of the second fuel injector.
11 more elements
Dependencies are inferred from the claim text.