| 摘要 |
<p>The present invention relates to a turbine assembly (10, 10a-d) comprising a basically hollow aerofoil (12), having at least a cavity (14) with an inner wall (16) and having at least an aperture (18) providing access to the cavity (14), and at least a first impingement device (20, 20a-d) arrangeable within the cavity (14). According the invention the at least first impingement device (20, 20a-d) is self-locking, resilient and preloadable and has at least one locking element (22, 22') to lock the at least first impingement device (20, 20a-d) in place in the cavity (14) via a force fit between the at least one locking element (22, 22') and the inner wall (16) of the cavity (14) wherein the locking element (22, 22') of the at least first impingement device (20, 20a-d) is embodied as a protrusion (26, 26') extending in an assembled state of the at least first impingement device (20, 20a-d) in the cavity (14) basically perpendicular to a surface (28) of a side wall (30, 30') of the at least first impingement device (20, 20a-d) in a direction towards the inner wall (16).</p> |
