Pin-guided spring for ceramic matrix composite turbine components and method

A method of mounting a ceramic matrix composite (CMC) component of a turbine engine, the CMC component having a hot side configured for exposure to a hot gaspath of the turbine engine and an opposing non-gaspath side having a first flange and a second flange extending radially outward therefrom, the first and second flanges each including a plurality of axial holes disposed therethrough, the method comprising:

• disposing a first support radially outward from the non-gaspath side of the CMC component, the first support including:
• a circumferential slot dimensioned to receive the first flange,
• a first end wall configured to be positioned between the first flange and the second flange when the first flange is received in the circumferential slot,
• a plurality of through holes in the first end wall that extend to the circumferential slot that are in registration with the plurality of axial holes of the first flange when the first flange is received in the circumferential slot, and
• a plurality of first blind holes in registration with the plurality of through holes in an opposing side of the circumferential slot;
• inserting the first flange of the CMC component into the circumferential slot of the first support;
• positioning a pin-guided spring between the first end wall of the first support and the second flange of the CMC component, the pin-guided spring including:
• a first end configured to contact the first end wall and having a plurality of first axial holes in registration with the plurality of through holes in the first end wall,
• a second end configured to contact the second flange and having a plurality of second axial holes in registration with the plurality of axial holes in the second flange, and
• a compressible central section;
• inserting a plurality of pins axially through corresponding axial holes of the second flange, through corresponding second axial holes of the pin-guided spring, through corresponding first axial holes of the pin guided spring, through corresponding through holes in the first end wall, through corresponding axial holes of the first flange, and into corresponding first blind holes of the first support;
• disposing a second support radially outward from the non-gaspath side of the CMC component and axially-spaced from the first support, the second support including a second end wall having a plurality of second blind holes in registration with the plurality of axial holes of the second flange;
• and
• axially moving the second support towards the first support to:
• receive the plurality of pins within the plurality of second blind holes, and
• compress the central section of the pin-guided spring to form an interference fit between the first end wall and the second flange to cause the second flange to contact the second end wall of the second support.