Pratt-whitney Canada Corp

Josianne Coulombe

Vincent Savaria

Jeremie Barberger

Thomas Georges

Jessie Gagnon

Addison Rayner

Alice Goffin

An apparatus is provided for a powerplant. This apparatus includes a pilot chamber structure formed as a monolithic body. The pilot chamber structure includes an exterior surface, an interior surface, a pilot chamber, a pilot aperture, a fuel aperture and an ignitor aperture. A material property of the monolithic body may change as the pilot chamber structure extends between the exterior surface and the interior surface. The interior surface forms an outer peripheral boundary of the pilot chamber. The pilot chamber is internal to the pilot chamber structure. The pilot aperture projects into the pilot chamber structure to the pilot chamber. The fuel aperture projects into the pilot chamber structure to the pilot chamber. The ignitor aperture projects into the pilot chamber structure to the pilot chamber.

Internal combustion engine with monolithic pilot chamber structure

A repair method for a component having a damaged portion on a surface thereof includes obtaining a feedstock mixture comprising base material particles and a binder, forming a preform with the feedstock mixture, placing the preform on the damaged portion of the surface of the component, and subjecting the component and the preform to at least one thermal cycle for forming a metallurgical bond in a solid state between the preform and the surface of the component after the at least one thermal cycle, the at least one thermal cycle occurring below a melting temperature of the component and the preform. A repair method involving pouring fluid feedstock mixture on a damaged portion of the surface of the component is also disclosed.

Repair methods for components having a damaged portion on a surface thereof

Growing community of inventors

Boucherville, Canada

Josianne Coulombe