Propulsion chamber for rocket engine, has coolant circuit materialized by channels machined inside hull, channels closed by thin internal wall, and welding network provided between hull and internal wall individualizes conduits of circuit

摘要

The chamber has a thin internal wall (29) assembled with an external hull (27) of a wall, where thickness of the wall is lower than 1 mm in an upstream zone of the collar. A coolant circuit is integrated in the thickness of wall of the chamber and materialized by channels (31) machined inside the hull. The channels are closed by the thin internal wall. A welding network (34) provided between the hull and the thin internal wall individualizes conduits (25) of the coolant circuit. An independent claim is also included for a method for manufacturing a propulsion chamber.