Liquid Rocket Engine Component "Injection Nozzle", at the end of WWⅡ
$5.00 Liquid Rocket Engine Component "Injection Nozzle", at the end of WWⅡ
3D
Published 2022-04-11T09:43:11+00:00
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 an actual size functional cutaway teaching model for “Injection Nozzle” of “[B] Combustion Chamber” with reference to books and public information on the Internet.
A. Features of this model
① Injection Nozzle (Almost actual size and parts configuration)
② Injector Body (Partial, one pair of Fuel and Oxidizer)
B. Assembly Manual (PDF format, total 8 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 - M3x60L Screw
2. Aluminum Pipe - φ4
3. Coil Spring - φ0.4x9.52x19.05 - Similar parts is acceptable
D. STL file
Total STL files are 17 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. 15 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.
I do hope your success!!
| Date published | 11/04/2022 |
| Price | $5.00 |