Multi-part fluid chamber and method of manufacturing

A coupling system for forming a multi-part thrust chamber for liquid rocket propellant engines, comprising:

• a first segment of the multi-part thrust chamber including a first joint face with a first profile, the first profile comprising:
• an first inner edge extending from the first joint face;
• a first lip separated from the first inner edge by a first gap, the first lip extending from the first joint face;
• a first shoulder arranged opposite the first inner edge;
• and
• a first chamber arranged between the first lip and the first shoulder, the first chamber being at least partially aligned with a first mating interface between the joint insert and the first segment;
• a second segment of the multi-part thrust chamber, positioned adjacent the first segment, including a second joint face with a second profile, the second profile comprising:
• an second inner edge extending from the second joint face;
• a second lip separated from the second inner edge by a second gap, the second lip extending from the second joint face;
• a second shoulder arranged opposite the second inner edge;
• and
• a second chamber arranged between the second lip and the second shoulder, the second chamber being at least partially aligned with a second mating interface between the joint insert and the second segment;
• an opening formed between the first profile and the second profile;
• and
• a joint insert including an insert profile positioned in the opening, the insert profile mating with at least a portion of the first profile and at least a portion of the second profile, the joint insert in contact with the first shoulder and the second shoulder and extending to the first gap and the second gap.