IMPINGEMENT COOLING MECHANISM, TURBINE BLADE AND COMBUSTOR

摘要

The present invention relates to an impingement cooling mechanism that sprays a cooling gas towards a cooling target (2) from multiple impingement holes (3b) formed in a facing member (3) disposed facing the cooling target (2). Blocking members (5) that block the cross flow (CF), which is the flow formed by the cooling gas after being sprayed from the impingement holes (3b), are disposed on at least the upstream side of the cross flow (CF) with respect to at least a portion of the impingement holes (3b). Turbulent flow-promoting parts (6) are provided in the flow path (R) of the cross flow (CF) regulated by the blocking members (5).