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Liquid Rocket Engine Component "Combustion Chamber", at the end of WWⅡ

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3D design format
STL and ZIP Folder details Close
  • Assy-Manual-LRE01-CC.zip
    • Assy-Manual-LRE01-CC.pdf
  • C-C-Chamber-Cut02.stl
  • C-C-Chamber-Cut101ws.stl
  • C-C-Cool-Guide-Cut01ws.stl
  • C-C-Cool-Guide-Cut02ws.stl
  • C-C-Weld-Bead01.stl
  • C-Comb-Case-Cut01.stl
  • C-Comb-Case-Cut102ws.stl
  • Flame-Exting-Duct-Cut01.stl
  • Inj-Pipe-C-Cool01.stl
  • Inj-Pipe-C-Flg01.stl
  • Inj-Pipe-C-RTN01.stl
  • Inj-Pipe-C1-01.stl
  • Inj-Pipe-C2-01.stl
  • Inj-Pipe-C3-101.stl
  • Inj-Pipe-Purge101.stl
  • Inj-Pipe-T-Connect01.stl
  • Inj-Pipe-T1-01.stl
  • Inj-Pipe-T2-01.stl
  • Inj-Pipe-T3-101.stl
  • Inj-Pipe-T3-102.stl
  • Inj-Pipe-T3-103.stl
  • Injector-Front201.stl
  • Injector-Main201.stl
  • Injector-Nozzle02.stl
  • Injector-Nozzle03.stl
  • Injector-Nozzle101ws.stl
  • Pipe-Label-Clip101.stl
  • Pipe-Label101.stl
  • Pipe-Nut02.stl
  • Stand-C-Chamber01.stl
  • Stand-C-Chamber02.stl
  • Support-Tube-Brkt01.stl
  • Support-Tube-Cut101.stl
  • Support-Tube-Cut102.stl
  • Support-Tube-Cut103.stl
  • Valve-Dump01ws.stl

Learn more about the formats
Publication date 2022-04-09 at 21:45
Design number 688969
konchan77

konchan77

3D printer file info

3D model description

◆Related URLs◆
[Engine]
https://cults3d.com/en/3d-model/tool/liquid-rocket-engine-assembly-at-the-end-of-ww
[Turbopump]
https://cults3d.com/en/3d-model/tool/liquid-rocket-engine-component-turbopump-at-the-end-of-ww
[Injection Nozzle]
https://cults3d.com/en/3d-model/tool/liquid-rocket-engine-component-injection-nozzle-at-the-end-of-ww
[Metering Unit]
https://cults3d.com/en/3d-model/tool/liquid-rocket-engine-component-metering-unit-at-the-end-of-ww
[Steam Generator]
https://cults3d.com/en/3d-model/tool/liquid-rocket-engine-component-steam-generator-at-the-end-of-ww
[Steam Control Valve]
https://cults3d.com/en/3d-model/tool/liquid-rocket-engine-component-steam-control-valve-at-the-end-of-ww
★At the end of WWII, the only manned tailless fighter equipped with a liquid rocket engine was developed and produced in Germany (Me163), and remodeled and prototyped in Japan (秋水).
In Japan, the war ended shortly after the failure of the first flight, and it ended incompletely.
The engine uses the propellant (below) that self-ignites by mixing fuel and oxidizer.
　　・Fuel(C-Stoff, 乙液: "Hydrazine (30%) + Methanol (57%) + Water (13%)",
　　・Oxidizing agent(T-Stoff, 甲液): "80% hydrogen peroxide solution"
　Both were dangerous chemical that were difficult to handle because they were powerful drugs.
The engine names are known as HWK109-509A (Germany), 特呂二号(Japan).
The main components are
　[A] Power unit (Turbopump, Gearbox, Starter),
　[B] Combustion Chamber (Injector, Combustion Nozzle, Cooling Device),
　[C] Metering Device, [D] Steam Generator, [E] PressureRegulator, etc.
This time, I made a functional cut model teaching material for “[B] Combustion Chamber” with reference to books and public information on the Internet.

A. Features of this model
　① Injector (Injection Nozzles)
　　　The injector body is divided into two parts to explain the internal passage.
　② Combustion Nozzle with Cooling Jacket and Tubes
　③ Support Tube (Partial)
　④ Fuel and Oxidizer Supply Piping
　⑤ Color identification (Light Green: Fuel, Yellow: Oxidizer, light blue: Steam)

The following structure has been changed.
　　Welding, Riveting

B. Assembly Manual (PDF format, total 14 pages)
The detail assembly manual including "Parts-List", "After printing treatment" and "Assembly procedure" are prepared based on "Standard Skill (Filing, Drilling, Tapping and painting)".

C. Purchase Parts Information;
　1. Screws
　　Micro screws M1.4x3.5L & M1.4x6L - Direct screw-in to 1 mm dia hole (No nut)
　　　But if you have the M1.4 Tap, it will be very useful.
　　Screws M2 - See Parts List

D. STL file
　　Total STL files are 36 items including the stand and tools.
　　“ws” of last 2 digits of file name means “With Support” special designed.

E. Total Net Print Time: Approx. 58 HR
　- (Estimated as case of PLA, 0.4mm Nozzle, 0.2mm Layer Height, 40% infill and No raft and support)
　　Note: When at actual print, each parameter may be adjusted by your experience.

F. Printing settings
　　Raft, Support, Layer Height, Infill: Depending on your experience.
　　My models were printed by "idbox" using with 0.4 nozzle, 1.75 PLA.
[Update] 2022.05.15 - Relate URLs added

I do hope your success!!

3D printing settings

See above.

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