US 11,939,919 B2
Gas turbine engine cooling fluid metering system
John H. Mosley, Portland, CT (US); Michelle Diana Stearns, Lebanon, CT (US); Michael Luther Comeau, Manchester, CT (US); and James P. Chasse, Wethersfield, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by United Technologies Corporation, Farmington, CT (US)
Filed on Jun. 12, 2019, as Appl. No. 16/439,090.
Application 16/439,090 is a continuation of application No. 14/818,944, filed on Aug. 5, 2015, granted, now 10,443,498.
Claims priority of provisional application 62/037,631, filed on Aug. 15, 2014.
Prior Publication US 2020/0032711 A1, Jan. 30, 2020
Int. Cl. F02C 7/12 (2006.01); F01D 25/12 (2006.01); F02C 3/04 (2006.01); F02C 7/18 (2006.01); G01F 1/42 (2006.01)
CPC F02C 7/12 (2013.01) [F01D 25/12 (2013.01); F02C 3/04 (2013.01); F02C 7/18 (2013.01); G01F 1/42 (2013.01); Y02T 50/60 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fluid supply system for a gas turbine engine comprising:
a first component and a second component;
a fluid fitting that has a fluid junction, the fluid junction includes a first fluid port in fluid communication with and configured to supply a first cooling fluid to the first component, and the fluid junction includes a second fluid port in fluid communication with and configured to supply a second cooling fluid to the second component;
a primary pipe fluidly connected to the fluid fitting;
a flow meter arranged upstream from the fluid junction and configured to receive a cooling supply fluid from a fluid source, wherein the flow meter is a wall having an orifice and a surface that is radiused and convex facing into the cooling supply fluid;
a secondary pipe secured to the fluid fitting and configured to supply the second cooling fluid to the second component;
a turbine section having a high pressure turbine section rotating at a faster speed than a low pressure turbine section, the turbine section including the first and second components, wherein the first and second components are part of a mid-turbine frame arranged within the turbine section between the high pressure turbine section and the low pressure turbine section; and
the primary pipe configured to provide the cooling supply fluid from the fluid source to the fluid fitting.
 
11. The fluid supply system according to claim 1, wherein the mid-turbine frame is configured to support a bearing system in the turbine section.