US 11,946,383 B2
Seal oil systems
Todd A. Davis, Tolland, CT (US); and Christopher M. Valva, Manchester, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Jun. 28, 2022, as Appl. No. 17/851,412.
Application 17/851,412 is a continuation of application No. 16/215,470, filed on Dec. 10, 2018, granted, now 11,401,833.
Prior Publication US 2022/0325633 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F01D 25/18 (2006.01); F01D 25/20 (2006.01); F16C 33/66 (2006.01); F16C 33/76 (2006.01)
CPC F01D 25/186 (2013.01) [F01D 25/20 (2013.01); F16C 33/6637 (2013.01); F16C 33/76 (2013.01); F05D 2260/98 (2013.01); F16C 2360/23 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A gas turbine engine, comprising:
a first bearing compartment;
a seal assembly within the first bearing compartment, comprising:
a rotatable seal seat; and
a gutter radially outward of the seal seat and fixed against rotation, the gutter including a channel on a radially inner face of the gutter;
a second bearing compartment; and
a scavenge pump in communication with a first supply line configured to supply the first bearing compartment and a second supply line configured to supply the second bearing compartment,
wherein the gutter is in communication with the scavenge pump through a gutter scavenge line, the channel feeds the gutter scavenge line through an air/oil separation ramp, the gutter scavenge line is attached to the gutter near the air/oil separation ramp, and the gutter includes a radially outwardly extending flange for attachment of the cutter to a stationary component of the engine.