US 11,933,187 B2
Bearing housing assembly
Oleg Morenko, Oakville (CA); and Sandeep Vishal Dhalla, Woodbridge (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed on Dec. 18, 2020, as Appl. No. 17/126,678.
Prior Publication US 2022/0195888 A1, Jun. 23, 2022
Int. Cl. F01D 25/12 (2006.01); F01D 25/16 (2006.01)
CPC F01D 25/125 (2013.01) [F01D 25/16 (2013.01); F05D 2240/50 (2013.01); F16C 2360/23 (2013.01)] 20 Claims
OG exemplary drawing
 
20. 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;
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 extending 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;
wherein the bearing housing cover is mounted to an upstream end of the bearing housing; and
a second bearing housing cover mounted to a downstream end of the bearing housing, the second bearing housing cover including a plurality of additional air passages in fluid communication with the plurality of air passages in the bearing housing cover mounted to the upstream end of the bearing housing.