Post by paul on Feb 10, 2007 19:07:56 GMT
I've been putting together some simple drawings for an engine. My idea is to create a very simple single-acting piston-valve operated engine that requires the minimum number of difficult-to-make parts and is designed with metric measurements in mind. The objectives are...
So far I've got the basics organised for the cylinder, valve and cylinder support and I'm just starting to think about the crankshaft end of things.
Thanks to 'Baggo' for help with the valve details and Alan for supplying lots of simple engine plans that have provided inspiration.
I know there are plenty of simple engine designs out there in imperial measurements but I've been unable to find a piston-valve engine in metric hence this crazy idea!
If anyone would care to look at the plans so far there's a .PDF here... www.artefact-rescue.co.uk/file/pr_re1.pdf
At the moment I'm trying to figure out the best way to get the two crankshaft standards perpendicular to the base and whether or not the cylinder end and support should be threaded or just have clearance holes for bolting on (the cylinder is of sufficient thickness to allow threaded holes to be made but these aren't on the drawing yet!).
The piston will probably have an integral (extended) rod with cross-head to eliminate the need for a slide/trunk arrangement.
The valve tube and cylinder will be silver soldered together.
If anyone has any suggestions I'd be grateful to hear them but please keep in mind I want this to be uber-simple to make!
- Very easy to make with few complex parts (simple lathe operations only) and not requiring many tools i.e. suitable for a beginner
- Measurements in metric
- Easy to work and inexpensive materials (brass and mild steel)
- A hint of 'realism' rather than being of 'toy' appearance
So far I've got the basics organised for the cylinder, valve and cylinder support and I'm just starting to think about the crankshaft end of things.
Thanks to 'Baggo' for help with the valve details and Alan for supplying lots of simple engine plans that have provided inspiration.
I know there are plenty of simple engine designs out there in imperial measurements but I've been unable to find a piston-valve engine in metric hence this crazy idea!
If anyone would care to look at the plans so far there's a .PDF here... www.artefact-rescue.co.uk/file/pr_re1.pdf
At the moment I'm trying to figure out the best way to get the two crankshaft standards perpendicular to the base and whether or not the cylinder end and support should be threaded or just have clearance holes for bolting on (the cylinder is of sufficient thickness to allow threaded holes to be made but these aren't on the drawing yet!).
The piston will probably have an integral (extended) rod with cross-head to eliminate the need for a slide/trunk arrangement.
The valve tube and cylinder will be silver soldered together.
If anyone has any suggestions I'd be grateful to hear them but please keep in mind I want this to be uber-simple to make!