US 12,258,878 B2
Lubricant system
Pietro Molesini, Castelnuovo del Garda (IT); Alberto Frezet, Turin (IT); and Saypen Baraggia Au Yeung, Valenza (IT)
Assigned to GE AVIO S.R.L., Rivalta di Torino (IT)
Filed by GE Avio S.r.l., Rivalta di Torino (IT)
Filed on May 19, 2023, as Appl. No. 18/320,564.
Application 18/320,564 is a continuation of application No. 16/895,336, filed on Jun. 8, 2020, granted, now 11,686,219.
Claims priority of application No. 102019000011391 (IT), filed on Jul. 10, 2019.
Prior Publication US 2023/0313707 A1, Oct. 5, 2023
Int. Cl. F01D 25/20 (2006.01); F01D 25/12 (2006.01); F01M 5/00 (2006.01); F01M 11/00 (2006.01); F02C 7/06 (2006.01); F16H 57/04 (2010.01); F01M 1/02 (2006.01)
CPC F01D 25/20 (2013.01) [F01D 25/12 (2013.01); F01M 5/007 (2013.01); F01M 11/00 (2013.01); F02C 7/06 (2013.01); F16H 57/0412 (2013.01); F16H 57/0482 (2013.01); F01M 1/02 (2013.01); F01M 2250/60 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of supplying lubricant to a component within a turbine engine, the method comprising:
recirculating a lubricant through a recirculation line from a reservoir, through the component, and back to the reservoir;
sensing a first parameter of the lubricant upstream of the component;
sensing a second parameter of the lubricant downstream of the component; and
controlling a flow rate of the lubricant to the component based on the sensed first and second parameters, wherein controlling the flow rate comprises:
controlling a first bypass valve to decrease a lubricant flow through the first bypass valve when at least one of the first parameter or the second parameter exceeds a predetermined threshold temperature; or
controlling the first bypass valve to increase a lubricant flow through the first bypass valve when a difference between the first parameter and the second parameter is below a predetermined threshold temperature difference.