Patent ID: 11933187
Assignee: PRATT & WHITNEY CANADA CORP.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 9:
10. A gas turbine engine comprising:
a centrifugal compressor having an impeller;
a bearing housing located downstream from the impeller, the bearing housing including a bearing within an interior chamber, the bearing rotationally supporting the impeller; and
a bearing housing cover at least partially enclosing the bearing housing, the bearing housing comprising:
an annular collar having a flange mountable to an exterior surface of the bearing housing;
an impeller baffle integrated with the annular collar, the impeller baffle having an annular body with a front baffle face positioned adjacent a rear face of the impeller, a rear baffle face having a plurality of stiffening elements extending between the rear baffle face and the annular collar, and a central baffle opening; and
a plurality of air passages circumferentially separated from one another and extending through the bearing housing cover at least partially axially between the front baffle face and the flange, the plurality of air passages in fluid communication with the interior chamber of the bearing housing.