Method and apparatus for segregated oil supply and scavenge in a gas turbine engine
First Claim
1. An oil supply and scavenge apparatus for a gas turbine engine, comprising:
- a stationary first frame comprising a first hub and a first outer ring interconnected by an array of radially-extending hollow first struts;
a forward wet cavity defined radially inboard of the first frame, having a first rolling element bearing disposed therein;
a supply line extending from the first outer ring through one of the first struts and communicating with the forward wet cavity, the supply line adapted to discharge oil to the forward wet cavity;
a stationary second frame comprising a second hub and a second outer ring interconnected by an array of radially-extending hollow second struts, the second frame disposed aft of the first frame; and
a scavenge path communicating with the forward wet cavity and adapted to remove oil-air mist from the forward wet cavity, the scavenge path defined at least in part by the second frame.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas turbine engine oil supply and scavenge apparatus includes: a stationary first frame comprising a first hub and a first outer ring interconnected by an array of radially-extending hollow first struts; a forward wet cavity defined radially inboard of the first frame, having a first rolling element bearing disposed therein; a supply line extending from the first outer ring through one of the first struts and communicating with the forward wet cavity, the supply line adapted to discharge oil to the forward wet cavity; a stationary second frame comprising a second hub and a second outer ring interconnected by an array of radially-extending hollow second struts, the second frame disposed aft of the first frame; and a scavenge path communicating with the forward wet cavity and adapted to remove oil-air mist from the forward wet cavity, the scavenge path defined at least in part by the second frame.
-
Citations
17 Claims
-
1. An oil supply and scavenge apparatus for a gas turbine engine, comprising:
-
a stationary first frame comprising a first hub and a first outer ring interconnected by an array of radially-extending hollow first struts; a forward wet cavity defined radially inboard of the first frame, having a first rolling element bearing disposed therein; a supply line extending from the first outer ring through one of the first struts and communicating with the forward wet cavity, the supply line adapted to discharge oil to the forward wet cavity; a stationary second frame comprising a second hub and a second outer ring interconnected by an array of radially-extending hollow second struts, the second frame disposed aft of the first frame; and a scavenge path communicating with the forward wet cavity and adapted to remove oil-air mist from the forward wet cavity, the scavenge path defined at least in part by the second frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of supplying oil to a bearing in a gas turbine, comprising:
- flowing oil through a supply line that extends radially inward through a hollow strut of a stationary first frame, where the first frame comprises a first hub and a first outer ring interconnected by an array of radially-extending hollow first struts, and discharging the oil into a forward wet cavity disposed radially inboard of the first frame which encloses a first rolling element bearing;
using the oil to lubricate the first rolling element bearing, whereby an oil-air mist is generated; and extracting the oil-air mist through a scavenge path defined at least in part by a stationary second frame that comprises a second hub and a second outer ring interconnected by an array of radially-extending hollow second struts, the second frame disposed aft of the first frame and the rolling element bearing. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
- flowing oil through a supply line that extends radially inward through a hollow strut of a stationary first frame, where the first frame comprises a first hub and a first outer ring interconnected by an array of radially-extending hollow first struts, and discharging the oil into a forward wet cavity disposed radially inboard of the first frame which encloses a first rolling element bearing;
Specification