US 12,264,629 B2
Air turbine starter with decoupler
Narendra Dev Mahadevaiah, Bengaluru (IN); Sharad Pundlik Patil, Bengaluru (IN); Pallavi Tripathi, Bengaluru (IN); Subrata Nayak, Bengaluru (IN); Milind Chandrakant Dhabade, Bengaluru (IN); Shiloh Montegomery Meyers, Dayton, OH (US); and David Allan Dranschak, Dayton, OH (US)
Assigned to Unison Industries, LLC, Jacksonville, FL (US)
Filed by Unison Industries, LLC, Jacksonville, FL (US)
Filed on Feb. 8, 2024, as Appl. No. 18/436,698.
Application 18/436,698 is a continuation of application No. 17/889,066, filed on Aug. 16, 2022, granted, now 11,959,421.
Claims priority of application No. 202211029491 (IN), filed on May 23, 2022.
Prior Publication US 2025/0027453 A1, Jan. 23, 2025
Int. Cl. F02C 7/277 (2006.01); F01D 19/00 (2006.01); F01D 21/00 (2006.01); F01D 21/02 (2006.01); F01D 21/14 (2006.01); F16D 9/06 (2006.01); F16D 43/20 (2006.01)
CPC F02C 7/277 (2013.01) [F01D 19/00 (2013.01); F01D 21/00 (2013.01); F01D 21/02 (2013.01); F01D 21/14 (2013.01); F16D 9/06 (2013.01); F16D 43/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An air turbine starter for starting an engine, the air turbine starter comprising:
a housing with an air flow path extending between an inlet and an outlet;
a turbine member located within the housing and having a turbine shaft and a plurality of blades extending from the turbine shaft, with at least a portion of the plurality of blades extending into the air flow path;
a drive shaft assembly operably coupled to the turbine member, and having an interior portion;
a hollow shaft at least partially disposed within the interior portion extending between a closed end and an open end;
a holder coupled to the hollow shaft and defining the closed end and defining at least one engagement surface;
an output shaft extending between a first end and a second end, the output shaft movable between a first position, where the first end is coupled to the engine, and a second position, where the second end is disposed within the interior portion and the first end is uncoupled from the engine; and
a retainer to connect the drive shaft assembly to the output shaft when the output shaft is in the first position, and to disconnect the drive shaft assembly from the output shaft when a driving torque transmitted from the drive shaft assembly to the output shaft loads the retainer over a torque limit and causes the output shaft to move into the second position.