US 12,000,342 B2
Air turbine starter with lubrication recirculation circuit
Narendra Dev Mahadevaiah, Bangalore (IN); Sharad Pundlik Patil, Bangalore (IN); Subrata Nayak, Bangalore (IN); Milind Chandrakant Dhabade, Bangalore (IN); Shiloh Montegomery Meyers, Miamisburg, OH (US); and David Allan Dranschak, Union, OH (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed on Sep. 16, 2022, as Appl. No. 17/946,238.
Prior Publication US 2024/0018909 A1, Jan. 18, 2024
Int. Cl. F02C 7/277 (2006.01); F01D 25/18 (2006.01); F02C 7/32 (2006.01); F16H 57/02 (2012.01); F16H 57/04 (2010.01)
CPC F02C 7/277 (2013.01) [F01D 25/18 (2013.01); F02C 7/32 (2013.01); F16H 57/02 (2013.01); F16H 57/04 (2013.01); F05D 2260/85 (2013.01); F16H 2057/02017 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An air turbine starter (ATS) for a gas turbine engine having an accessory gear box (AGB) with a lubricant reservoir, the air turbine starter comprising:
a housing at least partially defining a working air flow path;
a turbine section comprising a turbine having a turbine shaft and a plurality of blades circumferentially spaced about the turbine shaft, the plurality of blades at least partially extending into the working air flow path;
a drive section having at least one lubricated component, a drive shaft operably coupling the turbine shaft to the AGB;
a lubrication recirculation circuit having a supply line fluidly coupling the lubricant reservoir to the at least one lubricated component, and a return line fluidly coupling the at least one lubricated component to the lubricant reservoir;
a distribution chamber located within an interior of the housing fluidly coupled to the supply line, the return line and the at least one lubricated component; and
a bypass line, located within the interior of the housing, fluidly coupled to the distribution chamber, fluidly coupling the supply line to the return line, via the distribution chamber, for bypassing the at least one lubricated component.