A process for the preparation of a regenerative cooled nozzle expansion of a rocket combustion chamber and the nozzle expansion

摘要

The invention describes a process for the production of a regenerative cooled nozzle expansion of a rocket combustion chamber, which has a first wall (1) and a second wall (2), which are arranged coaxially relative to one another and between which a number of cooling channels (11) is formed by the cooling channel fins (5, 10) are limited laterally. The first and second wall (1, 2) by means of a positive connection (7) connected with each other, with cooling channel fins (5, 10) of the first wall (1) in corresponding depressions (6) of the second wall (2) for the formation of the positive connection (7) engage. The positive connection (7) is formed by a deformation of the having the depressions, second wall (2) in the region of the cooling channels (11) is produced.