The invention relates to a method for cooling a heat shield element (13), comprising a wall (15) with an inner side (151) and an outer side (153), which can be exposed to a hot fluid, and wherein a coolant (K) is introduced into an impingement region (17) ...

The cooling system for a post-combustion pipe having primary gas (2) and secondary air (3) channels has the secondary air channel surrounding the primary gas channel and separated from it by a thermal protection sleeve (4), and flaps (5) surrounding part o...