公开(公告)号：US10767560B2

公开(公告)日：2020-09-08

申请号：US16127365

申请日：2018-09-11

Applicant: United Technologies Corporation

Inventor： Daniel S. Rogers ,  Taryn Narrow ,  Gregory E. Reinhardt ,  Collin P. Fitzgerald ,  Christopher M. Valva ,  Leonard Kolshak

IPC: F02C7/06

Abstract: A bearing assembly for a gas turbine engine includes, among other things, a bearing housing extending along an axis to define a bearing compartment, a lubricant seal assembly adjacent to the bearing housing to bound the bearing compartment, an air seal assembly defining a vent cavity along the bearing housing, wherein a mixing cavity is defined between the lubricant seal assembly and the air seal assembly, and wherein the bearing housing defines an airflow supply passage, an airflow vent passage and a scupper passage having respective fluid ports at different circumferential positions relative to the axis, the fluid port of the airflow vent passage fluidly coupled to the vent cavity, and the fluid ports of the airflow supply and scupper passages fluidly coupled to the mixing cavity. A method of sealing for a gas turbine engine is also disclosed.

公开(公告)号：US20200080478A1

公开(公告)日：2020-03-12

申请号：US16127365

申请日：2018-09-11

Applicant: United Technologies Corporation

Inventor： Daniel S. Rogers ,  Taryn Narrow ,  Gregory E. Reinhardt ,  Collin P. Fitzgerald ,  Christopher M. Valva ,  Leonard Kolshak

IPC: F02C7/06

Abstract: A bearing assembly for a gas turbine engine includes, among other things, a bearing housing extending along an axis to define a bearing compartment, a lubricant seal assembly adjacent to the bearing housing to bound the bearing compartment, an air seal assembly defining a vent cavity along the bearing housing, wherein a mixing cavity is defined between the lubricant seal assembly and the air seal assembly, and wherein the bearing housing defines an airflow supply passage, an airflow vent passage and a scupper passage having respective fluid ports at different circumferential positions relative to the axis, the fluid port of the airflow vent passage fluidly coupled to the vent cavity, and the fluid ports of the airflow supply and scupper passages fluidly coupled to the mixing cavity. A method of sealing for a gas turbine engine is also disclosed.