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In fuel-rich engines can't the fuel be harvested after it does its function of cooling the chamber walls at the end of the nozzle. There are cases where fuel is
by soheil 5y ago
In fuel-rich engines can't the fuel be harvested after it does its function of cooling the chamber walls at the end of the nozzle. There are cases where fuel is boiling before it's ignited so I don't think the heat will be an issue. If it's not possible to have a pipe that transfers the fuel from the end of the nozzle back to the tip of the engine because of re-transfer of heat can't there be a secondary small engine near the end of the main engine that directly gets its fuel from the excess fuel used to cool the main engine?
- pfdietz 5y agoAll the fuel goes through the cooling channels before injection into the thrust chamber, typically. So what you're talking about there is standard practice.
- soheil 5y agoNot in those type of engines. I meant the type of engine that creates a layer of fuel on the outside walls that gets pushed out with the exhaust gases.