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US 12,535,214 B2Granted
Attaching powerplant structures together using fuel injector bolts
AssigneeRtx Corporation
InventorsLawrence A. Binek, Jose R. Paulino
Life of this patent
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Abstract
An assembly is provided for a powerplant. This powerplant assembly includes a first powerplant structure, a second powerplant structure and a fuel injector bolt that fastens the second powerplant structure to the first powerplant structure. The fuel injector bolt includes an injector head and an injector base. The injector head longitudinally engages the second powerplant structure. The injector base projects longitudinally along a centerline out from the injector head, through a fastener aperture of the second powerplant structure and into an injector receptacle of the first powerplant structure. The injector base is attached to the first powerplant structure through a threaded interface.
Claims13
An assembly for a powerplant, comprising:
- a first powerplant structure including an internal volume, an injector receptacle and a first powerplant engagement surface, the injector receptacle projecting longitudinally along a centerline into the first powerplant structure from the first powerplant engagement surface to the internal volume, wherein the longitudinal centerline is arranged parallel or along a same direction as a centerline axis of the powerplant;
- a second powerplant structure including a fastener aperture and a second powerplant engagement surface, the fastener aperture extending longitudinally along the centerline through the second powerplant structure to the second powerplant engagement surface, and the second powerplant engagement surface longitudinally engaging the first powerplant engagement surface, wherein the second powerplant structure further includes an exhaust duct for the powerplant,
- wherein the exhaust duct is positioned downstream of a combustion chamber of the powerplant;
- and
- a fuel injector bolt fastening the second powerplant structure to the first powerplant structure, the fuel injector bolt including an injector head and an injector base, the injector head longitudinally engaging the second powerplant structure, the injector base projecting longitudinally along the centerline out from the injector head, through the fastener aperture and into the injector receptacle, and the injector base attached to the first powerplant structure through a threaded interface, wherein the fuel injector bolt is configured to inject fuel into the internal volume comprising the combustion chamber,
- wherein the fuel enters the combustion chamber to generate combustion products to flow to the exhaust duct.
3 more elements
An assembly for a powerplant, comprising:
- a first powerplant structure including a combustion chamber, an injector receptacle and a first powerplant engagement surface, the injector receptacle projecting longitudinally along a centerline into the first powerplant structure from the first powerplant engagement surface to the combustion chamber;
- a second powerplant structure including a fastener aperture and a second powerplant engagement surface, the fastener aperture extending longitudinally along the centerline through the second powerplant structure to the second powerplant engagement surface, and the second powerplant engagement surface longitudinally engaging the first powerplant engagement surface;
- and
- a fuel injector bolt fastening the second powerplant structure to the first powerplant structure, the fuel injector bolt including an injector head and an injector base, the injector head longitudinally engaging the second powerplant structure, the injector base projecting longitudinally along the centerline out from the injector head, through the fastener aperture and into the injector receptacle, and the injector base attached to the first powerplant structure through a threaded interface;
- wherein the first powerplant structure further includes a diffuser wall, a plenum, a strut and a combustor wall that forms a peripheral boundary of the combustion chamber;
- wherein the plenum is between and formed by the combustor wall and the diffuser wall;
- wherein the strut extends across the plenum from the diffuser wall to the combustor wall;
- and
- wherein the injector receptacle extends longitudinally through the diffuser wall, the strut and the combustor wall to the combustion chamber.
6 more elements
An assembly for a powerplant, comprising:
- a first powerplant structure including an internal volume, an injector receptacle and a first powerplant engagement surface, the injector receptacle projecting longitudinally along a centerline into the first powerplant structure from the first powerplant engagement surface to the internal volume;
- a second powerplant structure including a fastener aperture and a second powerplant engagement surface, the fastener aperture extending longitudinally along the centerline through the second powerplant structure to the second powerplant engagement surface, and the second powerplant engagement surface longitudinally engaging the first powerplant engagement surface;
- and
- a fuel injector bolt fastening the second powerplant structure to the first powerplant structure, the fuel injector bolt including an injector head and an injector base, the injector head longitudinally engaging the second powerplant structure, the injector base projecting longitudinally along the centerline out from the injector head, through the fastener aperture and into the injector receptacle, and the injector base attached to the first powerplant structure through a threaded interface;
- wherein the fuel injector bolt further includes a nozzle passage, an injector base and a splash plate connected to the injector base;
- and
- wherein the injector base is configured to direct fuel through the nozzle passage and out of the injector base through a nozzle outlet to impinge against the splash plate.
4 more elements
Dependencies are inferred from the claim text.