Method of Preventing the Plugging of Liquid Coolant Passages of a Regeneratively Cooled Rocket Engine Thrust Chamber.

In the patent, the liquid coolant passages of a regeneratively cooled rocket engine thrust chamber are prevented from becoming plugged by foreign particles. The method includes the steps of forming an inlet and an outlet for each liquid coolant passage. Each inlet and each outlet is so configurated and so dimensioned as to prevent the entry into the respective liquid coolant passage of foreign particles of a predetermined size and larger which would plug the liquid coolant passage.