US 11,994,292 B2
Impingement cooling apparatus for turbomachine
Jonathan Dwight Berry, Simpsonville, SC (US); and Michael John Hughes, State College, PA (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Aug. 31, 2020, as Appl. No. 17/007,060.
Prior Publication US 2023/0375177 A1, Nov. 23, 2023
Int. Cl. F23R 3/06 (2006.01); F01D 9/02 (2006.01); F02C 3/14 (2006.01); F23R 3/00 (2006.01)
CPC F23R 3/06 (2013.01) [F01D 9/023 (2013.01); F02C 3/14 (2013.01); F23R 3/002 (2013.01); F05D 2260/201 (2013.01); F23R 2900/03044 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An integrated combustor nozzle comprising:
a combustion liner extending along a radial direction between an inner liner segment and an outer liner segment, the combustion liner including a forward end portion, an aft end portion, a first side wall, and a second side wall, the aft end portion of the combustion liner defining a turbine nozzle, the combustion liner defining a cavity forward of the turbine nozzle, the cavity extending between the first side wall and the second side wall, wherein a first rib and a second rib extend from one of the first side wall or the second side wall and within the cavity, the first rib and the second rib axially spaced apart such that the cavity is partitioned into a forward cavity portion, a middle cavity portion, and an aft cavity portion, and wherein the first rib and the second rib define one or more openings such that the forward cavity portion, the middle cavity portion, and the aft cavity portion are in fluid communication;
a fuel injector having an inlet disposed within the middle cavity portion, the fuel injector extending through one of the first side wall or the second side wall; and
an impingement cooling apparatus positioned within the aft cavity portion, the impingement cooling apparatus comprising:
a flange; and
a plurality of impingement members configured to direct air to impinge upon at least one of the first side wall and the second side wall, the plurality of impingement members comprising a first row of impingement members disposed proximate the first side wall and a second row of impingement members disposed proximate the second side wall, wherein a collection passageway is defined between the first row of impingement members and the second row of impingement members such that the collection passageway receives post-impingement air from gaps defined between the plurality of impingement members, wherein the first row of impingement members and the second row of impingement members diverge away from one another in a direction extending from the aft end portion towards the forward end portion of the combustion liner such that a transverse distance of the collection passage gradually increases in the direction from the aft end portion to the forward end portion, wherein the inlet of the fuel injector receives the post-impingement air from the collection passageway, wherein each impingement member of the plurality of impingement members extends from a respective inlet defined within the flange to a respective closed end, and wherein a plurality of impingement apertures are defined on each impingement member of the plurality of impingement members.