Spring-backed abradable seal for turbomachinery

The present invention provides, in one embodiment, an annular turbine seal for disposition in a turbine between a rotatable component (110) having an axis of rotation and a turbine housing (120) about the same axis of rotation. The turbine seal has a plurality of arcuate seal carrier segments (140) that have an abradable portion (150) secured to the seal carrier segments (140). In addition, at least one spring (185) is disposed on the seal carrier segment (140) to exert a force and maintain the seal carrier segment (140) adjacent to the rotatable component.