Gas turbine case and reinforcement strut for same
AssigneePratt & Whitney Canada Corp.
InventorAssaf FARAH
Life of this patent
Estimating the term…
Abstract
A case assembly for a gas turbine engine comprising annular case components each having a central axis. Radial struts each have a radial axis and intersect the annular case components. A stress dissipation mass projecting from a continuous surface of at least one of the struts at the intersection with a corresponding annular case component, the stress absorption mass being on either side of a plane passing through the radial axis of the strut and the central axis of the corresponding annular case component. A method for dissipating thermal and mechanical stresses on a strut in a case assembly for a gas turbine engine is also provided.
Claims20
A case assembly for a gas turbine engine comprising:
- annular case components each having a central axis;
- radial struts each having a radial axis, the radial struts intersecting the annular case components;
- and
- a stress dissipation mass projecting from a continuous surface of at least one of the struts at the intersection with a corresponding annular case component, the stress absorption mass being on either side of a plane passing through the radial axis of the strut and the central axis of the corresponding annular case component.
A method for dissipating thermal and mechanical stresses on a strut in a case assembly for a gas turbine engine comprising:
- determining a location of substantial thermal and mechanical stresses,
- determining a volume of mass required to dissipate the thermal and mechanical stresses at the location, and
- forming a discrete mass on the strut protruding from a continuous surface of the strut, at the determined location on either side of the strut.
A gas turbine engine comprising:
- a case assembly of an annular case components each having a central axis;
- radial struts in the case assembly, each having a radial axis, the radial struts intersecting the annular case components;
- and
- a stress dissipation mass projecting from a continuous surface of at least one of the struts at the intersection with a corresponding annular case component, the stress dissipation mass being on either side of a plane passing through the radial axis of the strut and the central axis of the corresponding annular case component.
Dependencies are inferred from the claim text.