公开(公告)号：US11655731B2

公开(公告)日：2023-05-23

申请号：US16791375

申请日：2020-02-14

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Pierre-Yves Legare ,  Sylvain Brouillet ,  Daniel Alecu ,  Sam Cutrara ,  Rose Beaulieu

IPC分类号： F01D25/20 ,  F01M1/02 ,  F01M1/10 ,  F01M11/00 ,  F16H57/04

CPC分类号： F01D25/20 ,  F01M1/02 ,  F01M1/10 ,  F01M11/0004 ,  F16H57/0402 ,  F16H57/0436 ,  F16H57/0452 ,  F16H57/0457 ,  F01M2001/105 ,  F01M2001/1035

摘要： An oil supply system for supplying oil to a lubricating cavity of a gas turbine engine, the oil supply system has: a de-oiler having a de-oiler air-oil inlet, a de-oiler oil outlet hydraulically connected to the lubricating cavity, and a de-oiler air outlet in fluid flow communication with an environment outside of the oil supply system; and a closed-loop oil circuit including a main pump having a main pump inlet and a main pump outlet, the main pump outlet hydraulically connected to the lubricating cavity, a de-aerator having a de-aerator inlet hydraulically connected to a scavenge outlet of the lubricating cavity, a de-aerator air-oil outlet in fluid flow communication with the de-oiler inlet, and a de-aerator oil outlet hydraulically connected to the main pump inlet.

公开(公告)号：US10918989B2

公开(公告)日：2021-02-16

申请号：US15949241

申请日：2018-04-10

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Sylvain Brouillet

IPC分类号： B01D45/00 ,  B01D50/00 ,  F02C7/06 ,  F02C7/36 ,  B01D45/14 ,  B01D46/00 ,  F01D25/18 ,  F02C7/32 ,  F01M13/04

摘要： There is disclosed an air-oil separator for a gas turbine engine. The separator has a first separator section having a first separator rotatably mounted about a rotation axis and having an air-oil mixture inlet and an air-oil mixture outlet; a second separator section having a second separator rotatable about the rotation axis, the second separator having a first air-oil mixture inlet fluidly connected to the air-oil mixture outlet of the first separator, and a second air-oil mixture inlet; and an air outlet. A first flow path extends from the first air-oil mixture inlet to the air outlet through the two separator sections, and a second flow path extends from the second air-oil mixture inlet to the air outlet, solely through the second separator section A method of operating an air-oil separator is also disclosed.