Search found 6 matches

by markombi
Sat May 14, 2022 10:08 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Heinrici
Replies: 1
Views: 2664

Heinrici

I have been given the task of repairing an Heinrici engine of approx1900circa. It is mostly complete but missing the flywheels and crankshaft. If I make a pattern for the flywheels I can have them cast at a local foundry. From photos I could see where the rim coincides with the body and ascertained ...
by markombi
Tue Aug 16, 2011 2:43 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Need help with our gamma school project engine
Replies: 31
Views: 17920

Re: Need help with our gamma school project engine

I have found that old stainless vacuum cleaner tubes are good for displacers you just have to braze the cap. Just looking at your photo the displacer cylinder looks too small in relation to the power cylinder. Most of my engines have at least 1.5 to 1 ratio and they 800 run to 1000 rpm. Your engine ...
by markombi
Thu Mar 17, 2011 7:12 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha type engine Idea/need input
Replies: 31
Views: 22561

Re: Alpha type engine Idea/need input

From what I have read about stirling engines over the last few months, I have come to the conclusion that the only reason for placing the power piston at the cold end, is just to keep as many moving parts as possible away from the heat source. This makes it easier to seal the power piston and pisto...
by markombi
Thu Mar 17, 2011 3:03 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Is my epoxy piston good enough?
Replies: 15
Views: 11414

Re: Is my epoxy piston good enough?

It should take 10 sec to drop
by markombi
Mon Mar 07, 2011 12:21 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Displacer Pushrod Gland Question
Replies: 3
Views: 3820

Re: Displacer Pushrod Gland Question

In my engines I usually use teflon plumber's tape in a stuffing box, well oiled. the teflon melds together with oil and heat making a good sliding seal. I haven't tried it with a popcan engine but it works well with the usual engines.
Mark