Seal oil systems
AssigneeRaytheon Technologies Corporation
InventorsTodd A. Davis, Christopher M. Valva
Life of this patent
Estimating the term…
Abstract
A gas turbine engine includes a first bearing compartment and a seal assembly within the first bearing compartment that includes a rotatable seal seat, a gutter radially outward of the seal seat and fixed against rotation. The gutter includes a channel on its radially inner face. A second bearing compartment is also included. A scavenge pump is 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. The gutter is in communication with the scavenge pump through a gutter scavenge line.
Claims20
A gas turbine engine, comprising:
- a first bearing compartment;
- a seal assembly within the first bearing compartment, comprising:
- a rotatable seal seat;
- a gutter radially outward of the seal seat and fixed against rotation, the gutter including a channel on its radially inner face;
- 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.
Dependencies are inferred from the claim text.