| 摘要 |
The nozzle(10) is formed as a body of revolution about a longitudinal axis(11) and has a cross section diameter that varies along this axis. The nozzle wall structure has multiple mutually adjacent cooling channels(11) helically extending in parallel from the nozzle inlet(13) to the nozzle outlet(14). The nozzle has at least two longitudinally adjacent sections(10a,10b,10c) with a shift between positive and negative channel angles from one section to the next. |
