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US 10,851,655 B2Granted
Fan
AssigneeROLLS-ROYCE plc
InventorGabriel Gonzalez-Gutierrez
Life of this patent
Estimating the term…
Abstract
A fan for a gas turbine engine, the fan comprising a first set of fan blades and a second set of fan blades arranged circumferentially around a hub. Each of the fan blades of the first and second set comprises an organic matrix composite body and a leading edge member connected to the body. The leading edge member of the first set of fan blades has a mass less than the leading edge member of the second set of fan blades.
Claims12
A fan for a gas turbine engine, the fan comprising:
- a first set of fan blades and a second set of fan blades arranged circumferentially around a hub,
- each of the fan blades of the first and second set comprises an organic matrix composite body and a leading edge member connected to the body,
- wherein the leading edge member of the first set of fan blades has a mass less than the leading edge member of the second set of fan blades,
- wherein a leading edge region of the first set of fan blades and a leading edge region of the second set of fan blades have a same exterior shape,
- wherein the mass of a radially inner portion of the leading edge member of the blades of the first set of blades is less than the mass of a radially inner portion of the leading edge member of the blades of the second set of blades, wherein the radially inner portion extends from a mid-spanwise location to a root of the blade, and
- wherein the mass of the leading edge member of the second set of fan blades is increased by providing a leading edge member with a greater volume in the region of greater mass than the fan blades of the first set.
3 more elements
Dependencies are inferred from the claim text.