CPC F01D 25/183 (2013.01) [F01D 11/00 (2013.01); F01D 25/12 (2013.01); F16J 15/162 (2013.01); F05D 2220/32 (2013.01); F05D 2240/55 (2013.01); F05D 2260/232 (2013.01)] | 20 Claims |
1. A seal system comprising:
a first member;
a seal carried by the first member and having a seal face; and
a second member rotatable relative to the first member about an axis and having:
a seat on a first piece of the second member, the seat having a seat face in sliding sealing engagement with the seal face; and
a radially outwardly closed collection channel for collecting centrifuged oil;
a second piece encircling and attached to the first piece and:
having a circumferential array of apertures; and
cooperating with the first piece to define a plenum; and
a flowpath from the collection channel passing radially outward axially spaced from the seat face to cool the seat face and passing axially away from the seat face in the plenum.
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