US 12,281,617 B2
Air turbine starter with lubrication recirculation circuit
Subrata Nayak, Bengaluru (IN); Milind Chandrakant Dhabade, Bengaluru (IN); Narendra Dev Mahadevaiah, Bengaluru (IN); Sharad Pundlik Pati, Bengaluru (IN); Shiloh Montegomery Meyers, Miamisburg, OH (US); and David Allan Dranschak, Union, OH (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed on Feb. 20, 2024, as Appl. No. 18/581,993.
Application 18/581,993 is a continuation of application No. 17/946,238, filed on Sep. 16, 2022.
Claims priority of application No. 202211039930 (IN), filed on Jul. 12, 2022.
Prior Publication US 2024/0240591 A1, Jul. 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)] 20 Claims
OG exemplary drawing
 
1. A lubrication recirculation circuit comprising:
a housing;
a distribution chamber provided within the housing;
a piston disposed within the distribution chamber, the piston movable between a first piston position and a second piston position;
a stopper movably disposed within the piston and having at least one outlet;
a reservoir fluidly coupled to the distribution chamber; and a lubrication line fluidly coupling the reservoir to the distribution chamber, the lubrication line further comprising a first conduit and a second conduit each extending from the distribution chamber;
wherein the first conduit of the lubrication line is open to a flow of lubricant when the piston is in the first piston position, and wherein the second conduit of the lubrication line is open to a flow of lubricant when the piston is in the second piston position; and
wherein the stopper includes a hollow portion which allows the lubricant to flow through an interior of the stopper.