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Regenerator cage for 2 in and 1.5 in tri-clamp spools (Ø47.5 and Ø34.8)
How do I hold regenerator mesh inside a tri-clamp spool? · Hardware · basis: Split tube drawn at the tri-clamp spool bore (2 in Ø47.5, 1.5 in Ø34.8), 2 mm split so it closes for insertion
Long Earth Society build part. The regenerator packing and burner insulation on every LES engine. The engines
Exact dimensions. Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part. Mating features
- sizes
- 2 in table
Notes
- The 2 in cage is Ø47.5 OD (= the 2 in spool bore) × 40 long, Ø44 ID, 1.75 mm wall.
- The 1.5 in cage is Ø34.8 OD (= the 1.5 in spool bore) × 30 long, Ø32 ID, 1.4 mm wall.
- Each has a 2 mm split through one wall (designed), so it closes slightly to slide into the bore and springs out against it.
- The regenerator matrix fills the cage bore: Ø44 × 40 on the 2 in size, Ø32 × 30 on the 1.5 in.
Sizes
| cage | od_mm | id_mm | length_mm | split_mm | spool |
|---|---|---|---|---|---|
| regenerator-cage-47-5x40 | 47.5 | 44 | 40 | 2 | 2 in |
| regenerator-cage-34-8x30 | 34.8 | 32 | 30 | 2 | 1.5 in |
Mating features
Drawn at the exact size. Open press, slide, run and socket features by your process's clearance; leave designed gaps and clamp fits as drawn.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| cage OD | Ø47.5 / Ø34.8 | tri-clamp-spool bore 47.5 / 34.8 | socket | regenerator-cage-* |
| cage split | 2 | closes for insertion | designed | regenerator-cage-* |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Wikipedia | Mesh (scale) | web | CC BY-SA 4.0 (text) |
| Wikipedia | Regenerative heat exchanger | web | CC BY-SA 4.0 (text) |
| Wikipedia | Steel wool | web | CC BY-SA 4.0 (text) |
| McMaster-Carr | Wire cloth (free STEP per part, for your own design use; no redistribution) | STEP, PDF | McMaster-Carr site terms verify |
| Long Earth Society | Engine and rig builds | web, video | LES site |
Free files
★ Free files 2 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| regenerator-cage-47-5x40 | regenerator cage for a 2 in spool bore: Ø47.5 OD (= bore) × 40, Ø44 ID, 1.75 wall, 2 mm split; pack with mesh or scrubber | STEP · STL |
| regenerator-cage-34-8x30 | regenerator cage for a 1.5 in spool bore: Ø34.8 OD (= bore) × 30, Ø32 ID, 2 mm split | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=regenerator-cage
How it fits
Goes in or on
Tri-clamp spool, 1.5 and 2 inchcage OD = spool bore Ø47.5 / Ø34.8 (socket)Also needed
Regenerator matrix disc Ø44 / Ø32 × 0.5 mmmatrix discs stacked in the cage bore
Tri-clamp clamp, two-boltclamps the spool between hot and cold endsIn these build lists
Tri-clamp elbow diaphragm alpha, 2 inA torch-heated alpha in 2 in tri-clamp: a square of fittings with a diaphragm he…You might also need
Questions
What size regenerator cage for a 2 in tri-clamp spool?
Ø47.5 OD × 40 mm, Ø44 ID, drawn at the spool bore with a 2 mm split.
Why is the cage split?
The 2 mm split lets it close for insertion into the Ø47.5 or Ø34.8 bore; it is a designed gap.