Bolting configuration for joining ceramic combustor liner to metal mounting attachments

A gas turbine combustor comprising a substantially cylindrical combustor liner located substantially concentrically within a flow sleeve, said combustor liner composed of a ceramic matrix composite material, a forward end of said combustor liner provided with a first plurality of circumferentially arranged bolt holes;

• an inner metal ring located about an outside surface of said forward end of said combustor liner, said inner metal ring having a solid annular portion and a plurality of axially extending, circumferentially spaced spring fingers, with a second plurality of circumferentially spaced slab-sided bolt holes located in respective ends of said spring fingers;
• and a plurality of bolts extending through said first and second pluralities of bolt holes to thereby secure said inner metal ring to said combustor liner;
• wherein a self-locking nut is threadably secured to each bolt and engaged with a radially outer surface of a respective spring finger;
• and wherein said slab-sided bolt holes are each adapted to receive a slab-sided shank portion of a respective one of said bolts.