US 12,188,363 B2
Air turbine starter
Amit Arvind Kurvinkop, Bengaluru (IN); David Raju Yamarthi, Bengaluru (IN); David Allan Dranschak, Union, OH (US); Brian Christopher Kemp, Troy, OH (US); Marc David Zinger, Dayton, OH (US); Parmeet Singh Chhabra, Bengaluru (IN); Roberto Karpik, Warsaw (PL); and Eliel Fresco Rodriguez, Springboro, OH (US)
Assigned to Unison Industries, LLC, Jacksonville, FL (US)
Filed by Unison Industries, LLC, Jacksonville, FL (US); and General Electric Company, Schenectady, NY (US)
Filed on Mar. 22, 2024, as Appl. No. 18/613,901.
Application 18/613,901 is a continuation of application No. 18/307,457, filed on Apr. 26, 2023, granted, now 11,959,387.
Application 18/307,457 is a continuation of application No. 17/358,236, filed on Jun. 25, 2021, granted, now 11,661,863, issued on May 30, 2023.
Claims priority of application No. 434997 (PL), filed on Aug. 18, 2020.
Prior Publication US 2024/0229678 A1, Jul. 11, 2024
Int. Cl. F01D 25/16 (2006.01); F02C 7/27 (2006.01)
CPC F01D 25/16 (2013.01) [F02C 7/27 (2013.01); F05D 2220/32 (2013.01); F05D 2240/54 (2013.01); F05D 2260/85 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An air turbine starter comprising:
a housing having a primary inlet and primary outlet to define a primary air flow path from the primary inlet to the primary outlet;
a gear box located within the housing and having a drive shaft and an output shaft, with a gear train, including a carrier, operably coupling the drive shaft and the output shaft;
a turbine having a rotor coupled to the drive shaft and a plurality of circumferentially spaced blades extending from the rotor;
a first bearing assembly located radially between the drive shaft and the housing and axially upstream of the gear box; and
a second bearing assembly located axially downstream of the gear box, wherein the second bearing assembly is in contact with and rotatably supporting the drive shaft relative to the carrier.