- Technical details:
- Displacer cylinder capacity: 345cm 3
- Measurements displacer cylinder:
Ø 69 x 58 mm
- Stroke: 20 mm
- Power piston capacity:
25 cm3
- Stroke: 20 mm
- Unloaded revolution:
n= 250-300/min.
- Material choice
Current available materials are used to build this engine.
Alternative available materials may be chosen for many of the in the part list mentioned materials.
- Measurements
The measurements of most of the components are not critical. Of course tuning is then necessary.
- Tip
In old computer parts you can find several suitable mini-bearings.
- Tip
The displacer also can be made of flower foam (dry).
Because the flower foam is so vulnerable, you must treat the outside several times with thinned wood glue after testing the engine.
- Heat source
The homemade spirit burner is very simple device.
Always use a little bit spirits at a time (fire- risk!!)
|
| piecenum. |
number |
description |
material |
measurement |
A. Frame
|
|---|
| 1. |
1 |
base |
plywood |
180x 120x 18 |
| 2. |
1 |
bearing-support |
plywood |
270x 70x 18 |
| 3. |
1 |
support |
plywood |
105 x 70 x 12 |
| 4. |
1 |
clip |
aluminium |
260 x 30 x 1 |
| 5. |
2 |
screws |
zinc plated steel |
3,5 x 35 |
| 6. |
4 |
screws |
idem |
3,0 x 12 |
B. Displacer piston
|
|---|
| 7. |
1 |
tin can 30cl. |
pewter steel |
Ø 72 x 88 |
| 8. |
1 |
cilinder lid |
aluminium |
Ø 74 x 1,5 |
| 9. |
1 |
tube mount |
acrylic, brass, aluminium |
Ø 15 x 12 |
| 10. |
1 |
displacer gland |
brass tube |
Ø 3 x 2 x 30 |
| 11. |
1 |
tube mount |
acrylic,brass, aluminium, |
Ø15 x12 |
| 12. |
1 |
tube connectionpiece |
brass tube |
Ø 6 x 5 x 25 |
| 13a. |
1 |
displacer connecting rod-bottom |
silver- or weldingsteel |
Ø 2 x 120 |
| 13b. |
1 |
displacer connecting rod-top |
silver- or weldingsteel |
Ø 2 x 120 |
| 14. |
1 |
hing connection |
smooth cablemantle |
Ø 3 x 1,5 x 20 |
| 15. |
1 |
tube |
pvc |
Ø 8 x 6 x 200 |
| 16. |
1 |
isolationtape |
elastic |
250 x 20 |
| 17. |
6 |
displacer piston
Ø 69 x 58 |
balsawood |
80 x 80 x 10 |
C. Powerpiston-Diaphragm
|
|---|
| 18. |
1 |
powerpiston |
pvc-endcap-40 |
Ø 44x 40x 20 |
| 19. |
1 |
bolt |
zinc plated steel |
M3 x 20 |
| 20. |
1 |
flat washer |
idem |
M3 |
| 21. |
1 |
cap nut |
idem |
M3 |
| 23. |
1 |
connectionpiece tube |
brass tube |
Ø 6 x 5 x 15 |
| 24. |
1 |
diaphragm |
balloon, theraband |
80 x 80 |
| 25. |
1 |
rubber band or
o-ring |
rubber |
30 mm |
| 26. |
2 |
disk |
acrylic |
Ø 20 x 3 x 2 |
| 27. |
1 |
bolt |
zinc plated steel |
M3 x 20 |
| 28. |
1 |
flat washer |
idem |
M3 |
| 29. |
1 |
rod screw connection |
brass |
M3 x 4 x 15 |
| 30. |
1 |
connecting rod |
zinc plated steel |
M3 x 100 |
D. Crankshaft-Flywheel
|
|---|
| 31. |
2 |
bearing |
steel |
13 x 5 x 4 |
| 32. |
1 |
crankshaft bearing tube |
brass tube |
Ø 5 x 4 x 30 |
| 33. |
1 |
crankshaft |
threaded rod M4 |
M4 x 90 |
| 34. |
7 |
nut |
zinc plate steel |
M4 |
| 35. |
4 |
flat washer |
idem |
M4 |
| 36. |
2 |
flat washer |
idem |
M4 x 20 |
| 37. |
2 |
crank disk |
beech |
Ø 30 x 8 |
| 38. |
2 |
crankshaft bearing |
silver- or weldingsteel |
Ø 2 x 15 |
| 39. |
2 |
bearing bloc |
acrylic |
8 x 8 x 16 |
| 40. |
1 |
flywheel |
plywood |
Ø 170 x 12 |
E. Heat source
|
|---|
| 41. |
1 |
tin can box |
pewter steel |
Ø100 x 25 |
| 42. |
1 |
shoelace |
cotton |
Ø3 x 100 |
| 43. |
- |
fuel |
spirit |
some cm3 |
| 44. |
2 |
wax-light candles |
paraffin |
- |
F. Glue
|
|---|
| - |
- |
woodglue |
- |
- |
| - |
- |
epoxyglue |
- |
- |
|
|
- current available materials
- adaption is possible
- non critical measurements
|
|
