| 摘要 |
A thermal protection arrangement (2) for at least one heat-sensitive component (4), comprising an elongate radiation screen (6) configured to at least partly enclose said component (4) and to protect the component from radiant heat, comprising a delineating wall (8) which defines a space (10) for said component and is configured to be at a distance from said component (4). The radiation screen (8) has an inflow end portion (12) defining a cross-sectional area A1, and an outflow end portion (14), for the respective inflow and outflow of a cooling airflow (16), the thermal protection arrangement (2) comprises an airflow means (18) configured to supply said cooling airflow (16) to said inflow end portion (12), and the cross-section of the cooling airflow (16) defines an area A2, the ratio A1/A2 being within the range 0.5 to 2. |
