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Thermoacoustic fin sleeve: clamp-on, 2 in tube, 34 mm (optional)

Name: Thermoacoustic fin sleeve: clamp-on, 2 in tube, 34 mm (optional) dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

How do I get more of a torch's heat into a 2 inch tube? · Hardware · basis: Bore = 2 in tube OD Ø50.8; length covers the 12 mm hot exchanger with 11 mm each side

Long Earth Society build part. The fin sleeves on my generator hot zones. 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: 3 in table

Notes

Two halves with 24 radial fins each side of the split, clamped round the plain core tube over the hot exchanger with one M4 × 16 and nut each side. The flame gas in the burner drum passes between the fins; the fins conduct into the tube wall, the wall into the slotted hot exchanger inside.
Optional: the engine is complete without it (the drum then heats the bare tube); with it the tube wall reaches a given temperature with less flame.
Fits: bore clamps the tube (1 mm split take-up); ear holes M4 clearance.

Sizes

feature	value
bore	Ø50.8
fins	24 × 1.5 to Ø72
length	34

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
bore	Ø50.8	2 in tube outside over the hot exchanger	clamp	all
split	1.0 total (0.5 per half)	the other half	clamp	all
ear holes	Ø4.5	M4 clearance (ISO 273 medium)	designed	all
fins	24 × 1.5 to Ø72	flame gas (no contact)	designed	all