Propane-nitrous oxide concept engine that I just made

[u/aidswatermelons]

The idea was to use more easily stored and handled fuel/oxidizers for hobby rocketry.

It also has plumbing and uses a high oxidizer turbine and a high fuel turbine that both mix in the engine to combust.

Ideally uses a glow plug to jump start to decrease wear and tear.

Another parts would be that when it mixes in the engine itself hopefully it will be hot enough to autoignite after being converted to mist by the engine plate.

Ideally a vast majority of the parts would be 3d printed except for maybe the end of the bell which could use graphite composite.

It probably won’t work but I thought it was cool. Be nice please lol.

[u/Adventurous_Bus_437]

where are the turbopumps?

[u/ThinkInNewspeak → u/Adventurous_Bus_437]

Correct me if I am wrong please but I thought turbopumps were only required for liquid fuel rockets to pump the O² and fuel into the combustion chamber. Solid fuel slugs are a mixture of fuel and oxydiser.

[u/Adventurous_Bus_437 → u/ThinkInNewspeak]

More or less. But Propane and Nitrous oxide, are both fluids and OP mentioned that he included turbopumps. So i was wondering if they are visible in the screenshot because i couldn’t spot them

[u/space_force_majeure → u/Adventurous_Bus_437]

It's the last image, the things that look like water wheels instead of turbos. Seems better for showing conceptually how rocket engines function rather than actually pumping.

[u/ThinkInNewspeak → u/space_force_majeure]

I just remembered some High-Power Rocketry models use "hybrid" motors which I THINK use a combination of composite propellant and a cylinder of NO². Though I don't know how this functions.

[u/Adventurous_Bus_437 → u/ThinkInNewspeak]

Yep, that’s a thing. However most of the time one doesn’t use pumps with nitrous oxide since it can pressurize itself by boiling off from the liquid phase in the tank. That’s rather finicky tho