公开(公告)号：US11918934B2

公开(公告)日：2024-03-05

申请号：US15613865

申请日：2017-06-05

Applicant: RTX Corporation

Inventor： Nicholas D. Leque

IPC: B01D11/02 ,  F01D25/18 ,  F01M1/10 ,  F01M11/03

CPC classification number: B01D11/0284 ,  F01D25/18 ,  F01M2001/1057 ,  F01M2001/1092 ,  F01M11/03 ,  F05D2260/606 ,  F05D2260/607 ,  F16N2210/02

Abstract: An oil filtration system includes an oil chamber inlet. Also included is a first screen defining a first chamber volume that receives an oil flow from the oil chamber inlet, the first screen having a first mesh coarseness. Further included is a second screen surrounding the first screen to define a second chamber volume surrounding the first chamber volume, the second screen having a second mesh coarseness that is greater than the first mesh coarseness. Yet further included is at least one exit nozzle having an exit cross-sectional area that is greater than or equal to a cross-sectional area of apertures of the second screen. Also included is a bypass valve disposed in a first position during a first pressure condition within the first chamber volume and in a second position during a second pressure condition within the first chamber volume.