Patent ID: 8689540

Claim:
A component configured for being subjected to a high thermal load during operation, comprising a first portion and a second portion defined by a wall structure with cooling channels adapted for handling coolant flow to cool a thrust chamber, the first portion comprising at least one first cooling channel, of the cooling channels adapted to convey the coolant between the first portion and the second portion, and the second portion comprising at least one second cooling channel of the cooling channels, the at least one second cooling channel being split into a plurality of channels comprising a first channel and a second channel, the first channel being open so that the first channel is in direct flow communication with the at least one first cooling channel and in direct flow communication with the second channel, the second channel being in direct flow communication with the first channel and otherwise being in flow communication with the first cooling channel only directly via a cooling structure between the second channel and the first cooling channel that allows a controlled leakage flow of coolant.