Brackets and mounts
Epitrochoidal Rotary Engine Housing Stator
- Bounding box
- 112.2 × 89.5 × 40.2 mm
- Engine
- Precision B-rep
- Parameters
- 14
- Published
- November 6, 2026
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The prompt
Design a parametric epitrochoidal rotary engine housing stator for a 3D mechanical model. Include a central epitrochoidal rotor cavity with smooth inner walls. Add a 10mm thick outer wall boundary with a pattern of 8 evenly spaced mounting bolt holes around the perimeter. Incorporate 2 intake ports on the left side, 2 exhaust ports on the right side, dual spark plug thread ports on the top surface, and internal micro-cooling passages running along the outer profile. Keep the design symmetrical along the horizontal axis with smooth fillets on all outer edges.
Parameters
| Name | Value | Range |
|---|---|---|
| Generating Radius (R) | 40 mm | 25 – 80 |
| Eccentricity (e) | 6 mm | 2 – 15 |
| Housing Depth | 40 mm | 15 – 100 |
| Profile Segments | 120 count | 60 – 360 |
| Outer Wall Thickness | 10 mm | 6 – 25 |
| Outer Rim Fillet | 1.5 mm | 0.5 – 4 |
| Mounting Bolt Count | 8 count | 4 – 16 |
| Mounting Bolt Hole Dia | 5.5 mm | 3 – 10 |
| Cooling Passage Count | 8 count | 4 – 16 |
| Cooling Passage Dia | 2.5 mm | 1.5 – 5 |
| Intake / Exhaust Port Dia | 9 mm | 4 – 20 |
| Port Offset from Axis | 12 mm | 5 – 25 |
| Spark Plug Thread Dia | 14 mm | 8 – 20 |
| Spark Plug Offset | 12 mm | 5 – 30 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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