Jet Engine, 3-Spool

by konchan77

Printable files (33)

  • stl

    Exhaust-Cone101ws.stl

    248 Ko · 7 243 downloads

  • stl

    Dummy-BRG-10mm01.stl

    57 Ko · 7 208 downloads

  • stl

    Fan-Duct302.stl

    144 Ko · 7 226 downloads

  • stl

    HPC-Case101.stl

    749 Ko · 7 214 downloads

  • stl

    HPC-Case101a.stl

    34 Ko · 7 194 downloads

  • stl

    Dummy-BRG-9mm01.stl

    52 Ko · 7 199 downloads

  • stl

    GB-Angle-Box01.stl

    98 Ko · 7 198 downloads

  • stl

    Exhaust-Frame01.stl

    553 Ko · 7 200 downloads

  • stl

    Fan-Duct01.stl

    198 Ko · 7 203 downloads

  • stl

    LPT-Inlet-Case01.stl

    631 Ko · 7 196 downloads

  • stl

    Fan-Shaft01.stl

    141 Ko · 7 187 downloads

  • stl

    GB-Main-Box01.stl

    618 Ko · 7 179 downloads

  • stl

    GB-Upper-Box01.stl

    231 Ko · 7 173 downloads

  • stl

    Fan-Duct301ws.stl

    1.9 Mo · 7 178 downloads

  • stl

    C-Chamber01.stl

    793 Ko · 7 177 downloads

  • stl

    Dummy-BRG-7mm01.stl

    46 Ko · 7 168 downloads

  • stl

    HPT-Case01.stl

    319 Ko · 7 174 downloads

  • stl

    HPT-Rotor01.stl

    192 Ko · 7 168 downloads

  • stl

    LP-Front-Stop101.stl

    119 Ko · 7 164 downloads

  • stl

    Spacer-7-06.stl

    21 Ko · 7 160 downloads

  • stl

    Stand-Front101.stl

    74 Ko · 7 158 downloads

  • stl

    Spinner01ws.stl

    307 Ko · 7 167 downloads

  • stl

    Stand-Rear101.stl

    94 Ko · 7 149 downloads

  • stl

    IPT-Rotor101.stl

    563 Ko · 7 163 downloads

  • stl

    IPC-Inlet-Case101.stl

    2.1 Mo · 7 163 downloads

  • stl

    IPC-Case01.stl

    605 Ko · 7 137 downloads

  • stl

    IPC-Rotor101ws.stl

    2.5 Mo · 7 151 downloads

  • stl

    Spinner01ws-Test01.stl

    1.1 Mo · 7 153 downloads

  • stl

    HPC-Rotor101ws.stl

    1.3 Mo · 7 142 downloads

  • stl

    LPT-Rotor101ws.stl

    2.5 Mo · 7 147 downloads

  • stl

    Fan-Blade201ws.stl

    5.5 Mo · 7 398 downloads

  • stl

    IPC-Rotor101.stl

    1.3 Mo · 1 089 downloads

  • stl

    HPC-Rotor101.stl

    1.2 Mo · 1 088 downloads

Description

For the latest jet engine for passenger planes, the Bypass Ratio is bigger and bigger to improve the engine-performance.
In order for one of them, the 3-spool system is developed. The 3D model for explaining this system was designed and made.
The points of the design are;

  1. For the rotation of each spool, the ball bearing method and the dummy bearing method are prepared.
  2. All stator vanes are omitted this time, because of avoiding rub of vanes and blades. And each rotor is designed with support so that it can be printed as one-piece.
    The blade angle is made to agree in the spool rotational direction (View from Rear).

    • HP Spool: Clockwise
    • IP Spool: Counter Clockwise
    • LP Spool: Counter Clockwise
  3. In addition, some parts that printing is considered difficult without support, are prepared STL file with support. The last of two digits of the file name is identified as "ws". In order to ease understanding about the contents of each part and the assembly order, parts breakdown and list are prepared.

Download files includes;
-files: STL Files
-images: Parts Breakdown for assembly Aid
-Excel File: Parts List

Purchase Parts Information;
-Bearings (Can be used Dummy BRGs instead of the followings, See Parts List)
DDL-1370ZZ (7 x 13 x 4) 2ea - For IP-Spool
689ZZ (9 x 17 x 5) 2ea - For HP-Spool
6900ZZ (10 x 22 x 6) 2ea - For LP-Spool

-Aluminum Tubes
See Parts List

-Screws
Micro screws M1.4x3L - Appox. 50 ea - Direct screw-in to 1 mm dia hole (No nut),
Screws M2 x 6L - 6 ea, See Parts List

Assembly Points

  • Standard Skill (such as Drilling, Tapping, Filing, Tightening, Painting and Gluing etc) is needed and perseverance too.

Total Net Print Time: Approx. 42HR

  • (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.

[Update]
Optional Fan; https://www.thingiverse.com/thing:2794855 - 2018.2.15
Modified Rotor; https://www.thingiverse.com/thing:2833968 - 2018.3.21
Parts-List011.csv was uploaded - 2020.5.19
No support rotors "IPC-Rotor101" & "HPC-Rotor101" are added as reference. - 2020.6.24
LPT Rotor illust changed - 2021.7.14

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