US 12,066,114 B2
Systems and methods for purging liquid from a liquid fuel supply system
Jeevankumar Krishnan, Karnataka (IN); Laxmikant Merchant, Karnataka (IN); Anil Kumar Dasoji, Karnataka (IN); and Rajarshi Saha, Karnataka (IN)
Assigned to GE INFRASTRUCTURE TECHNOLOGY LLC, Greenville, SC (US)
Filed by GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed on Nov. 22, 2021, as Appl. No. 17/532,280.
Prior Publication US 2023/0160479 A1, May 25, 2023
Int. Cl. F16K 11/07 (2006.01); F02C 7/22 (2006.01); F02C 7/232 (2006.01); F16K 24/02 (2006.01); F16K 31/122 (2006.01)
CPC F16K 11/07 (2013.01) [F02C 7/22 (2013.01); F02C 7/232 (2013.01); F16K 24/02 (2013.01); F16K 31/1221 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A three-way valve for a liquid fuel supply system, said three-way valve comprising:
a housing having a first end and an opposite second end that is spaced axially from the first end, said housing defining:
a liquid fuel inlet sized to receive liquid fuel therethrough for selectively channeling the liquid fuel through a liquid fuel outlet to a combustor of a gas turbine engine;
a purge gas inlet sized to receive purge gas therethrough for selectively purging the liquid fuel from said three-way valve when a flow of the liquid fuel is prevented into said three-way valve;
at least one outlet oriented to selectively discharge the liquid fuel from said three-way valve from a first axial location in response to the liquid fuel being purged from at least a portion of said three-way valve; and
at least two drain ports spaced axially apart and oriented to selectively channel the liquid fuel from said three-way valve in response to the liquid fuel being purged from at least a portion of said three-way valve, wherein each of said at least two drain ports are spaced an axial distance from said at least one outlet.