US 12,372,238 B1
Gas turbine engine combustor having a ceramic matrix composite liner and dome
Trevor James Hahm, Cincinnati, OH (US); Daniel J. Kirtley, Blue Ash, OH (US); Scott M. Bush, Liberty Township, OH (US); Adam Robert Kahn, Mason, OH (US); Shai Birmaher, Cincinnati, OH (US); Ryan Christopher Jones, West Chester, OH (US); Nathan Richard Hermanson, Cincinnati, OH (US); and Gerardo Antonio Salazar Lois, West Chester, OH (US)
Assigned to GENERAL ELECTRIC COMPANY, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Mar. 14, 2024, as Appl. No. 18/604,906.
Int. Cl. F23R 3/00 (2006.01)
CPC F23R 3/002 (2013.01) [F23R 2900/00012 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A combustor for a gas turbine engine, the combustor receiving an airflow from a compressor section of the gas turbine engine, the airflow being provided to a combustion chamber within the combustor, the combustor comprising:
a ceramic matrix composite (CMC) dome structure including an outer dome connecting flange extending in a longitudinal direction, an inner dome connecting flange extending in the longitudinal direction, and dome plate extending between the outer dome connecting flange and the inner dome connecting flange;
a CMC outer liner including an outer liner connecting flange extending in the longitudinal direction;
a CMC inner liner including an inner liner connecting flange extending in the longitudinal direction;
a cowl structure including an outer cowl connecting flange extending in the longitudinal direction and an inner cowl connecting flange extending in the longitudinal direction;
at least one outer connection connecting the outer liner connecting flange, the outer cowl connecting flange, and the outer dome connecting flange;
at least one inner connection connecting the inner liner connecting flange, the inner cowl connecting flange, and the inner dome connecting flange, the at least one inner connection comprises an inner bolted joint including an inner liner bushing extending through an inner liner bushing opening through the inner liner connecting flange, an inner dome bushing extending through an inner dome bushing opening through the inner dome connecting flange, and an inner fastener extending through the inner liner bushing and through the inner dome bushing;
an outer seal member arranged to seal an outer gap between the outer liner connecting flange and the outer dome connecting flange to restrict an airflow through the outer gap into the combustion chamber; and
an inner seal member arranged to seal an inner gap between the inner liner connecting flange and the inner dome connecting flange to restrict an airflow through the inner gap into the combustion chamber.