Baffle for installation inside a bearing chamber of a gas turbine engine
AssigneePratt & Whitney Canada Corp.
InventorIvan Sidorovich Paradiso
Life of this patent
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Abstract
A bearing chamber configuration that favorably directs the flow of oil/air mixture inside the bearing chamber of a gas turbine engine is disclosed. The bearing chamber includes an annular baffle surrounding a rotatable shaft. The baffle comprises an annular groove facing radially inwardly and a first radially-inner annular surface extending axially from a first side of the annular groove. The first radially-inner annular surface of the baffle cooperating with the shaft to define a first space inside the bearing chamber and adjacent the seal. The first space is circumferentially uniform.
Claims20
A gas turbine engine comprising:
- a shaft having a rotation axis;
- a bearing disposed inside an annular bearing chamber, the bearing rotatably supporting the shaft;
- a seal extending around the shaft and defining a sealing interface between an interior of the bearing chamber and an exterior of the bearing chamber;
- and
- an annular baffle disposed inside the bearing chamber and surrounding the shaft, the baffle comprising an annular groove facing radially inwardly and a first radially-inner annular surface extending axially from a first side of the groove, the first radially-inner annular surface of the baffle cooperating with the shaft to define a first space inside the bearing chamber and adjacent the seal, the first space being circumferentially uniform.
An annular baffle for installation inside a bearing chamber of a gas turbine engine where the bearing chamber houses a bearing rotatably supporting a rotatable shaft and the baffle surrounds the shaft, the baffle comprising:
- an annular groove having a central axis that corresponds to a rotational axis of the shaft during use, the groove facing radially inwardly;
- and
- a first radially-inner annular surface extending axially from a first side of the groove;
- and
- a second radially-inner annular surface extending axially from a second side of the groove opposite the first side of the groove.
Dependencies are inferred from the claim text.