US 12,286,934 B1
Turbine engine including an air turbine starter and a bleed air circuit
Pallavi Tripathi, Bengaluru (IN); Brian Christopher Kemp, Troy, OH (US); Shiloh Montegomery Meyers, Miamisburg, OH (US); Nagendra Baddam, Bengaluru (IN); and Sheo Narain Giri, Bengaluru (IN)
Assigned to Unison Industries, LLC, Jacksonville, FL (US)
Filed by Unison Industries, LLC, Jacksonville, FL (US)
Filed on Oct. 26, 2023, as Appl. No. 18/495,209.
Int. Cl. F02C 7/277 (2006.01); F02C 7/12 (2006.01); F02C 7/32 (2006.01); F02C 9/18 (2006.01)
CPC F02C 7/277 (2013.01) [F02C 7/12 (2013.01); F02C 7/32 (2013.01); F02C 9/18 (2013.01); F05D 2260/20 (2013.01); F05D 2260/85 (2013.01)] 20 Claims
OG exemplary drawing
 
18. An assembly for a turbine engine, the assembly comprising:
an accessory gear box (AGB);
an air turbine starter (ATS) having an ATS turbine, an ATS gearbox, an ATS drive shaft operably coupling the ATS turbine and the ATS gearbox, and an ATS output shaft operably coupling the ATS gearbox to the AGB; and
a bleed air circuit comprising:
a first bleed air passage;
a second bleed air passage fluidly coupling the first bleed air passage to the ATS;
a third bleed air passage fluidly coupled to an output of the ATS; and
a bypass passage fluidly coupled to the third bleed air passage while bypassing the ATS, and
a pre-cooler heat exchanger (PCE) fluidly coupled to the fan section of the turbine engine and a system external to the turbine engine, wherein the third bleed air passage and the bypass passage meet at a junction upstream of the PCE.