Merlin 1D Rocket Engine
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Model information
- Source
- Printables
- Category
- Vehicles & Machines
- License
- Creative Commons — Attribution
The SpaceX Merlin is a family of rocket engines developed by SpaceX for use on its Falcon 1, Falcon 9 and Falcon Heavy launch vehicles. Merlin engines use RP-1 and liquid oxygen as rocket propellants in a gas-generator power cycle. The Merlin engine was originally designed for sea recovery and reuse.
The injector at the heart of Merlin is of the pintle type that was first used in the Apollo Lunar Module landing engine (LMDE).
Propellants are fed via a single shaft, dual impeller turbopump. The turbopump also provides high-pressure fluid for the hydraulic actuators, which then recycles into the low-pressure inlet. This eliminates the need for a separate hydraulic drive system and means that thrust vectoring control failure by running out of hydraulic fluid is not possible.
How I Designed This
The Amazing Merlin!
I used the few images supplied by Elon Musk and SpaceX to create the parts in Fusion 360. I used my experience as an engineer to guess at some things, but all in all, this model shows the piping of fuel and oxidizer through the engine.
Category: Engineering