Search found 66 matches

by SScandizzo
Thu Jun 08, 2006 2:22 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Dual Acting Cylinders
Replies: 27
Views: 22021

Dual Acting Cylinders

Has there been much work done on dual acting cylinders for Stirling engines? (A dual acting cylinder is commonly found on 20th century steam locomotives. It is a design in which steam flows into a chamber first on one side of the power piston and then the other side, functionally acting as a two cyl...
by SScandizzo
Thu Jun 01, 2006 8:59 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Displacer motion
Replies: 9
Views: 8822

Stan,

Ivo Kolin's book "Isothermal Cycle Stirling Engine" is not only out of print, but completely unavailable! If you happen to be able to post some of its contents electronically (or by email) I'd really like to see it.

-Stefan
by SScandizzo
Wed May 31, 2006 11:51 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Displacer motion
Replies: 9
Views: 8822

Thanks for your leads, Stan. I've also seen a mechanism using two elliptical gears to drive the displacer in an almost intermittent manner. Here's the link: http://www.stirlingsouth.com/richard/develop/engines_under_development.htm They claim that the initial tests have been favorable, but they stop...
by SScandizzo
Sun May 21, 2006 10:39 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: New Stirling site
Replies: 6
Views: 7093

Way to go Roy! Using the polyester laminating resin is brilliant. I've found that the hardest single component to fabricate is the power cylinder/piston and you've found a great solution. My latest engine uses a glass syringe for the cylinder and piston, so my dimensions are restricted by the syring...
by SScandizzo
Wed May 17, 2006 7:13 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: crank angle
Replies: 9
Views: 10361

Hi guys, I'm new to the forum and the hobby of hot air engine building but my most recent design has given me quite a bit of confidence in addressing the questions generated in this thread. Take it (or leave it) with a grain of salt, and please don't hesitate to fire out more questions! Oh boy did y...
by SScandizzo
Tue May 16, 2006 5:43 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Displacer motion
Replies: 9
Views: 8822

Displacer motion

Hi Guys, Thank you Darryl for creating this forum, as I have few places to bounce my ideas. I've been thinking about how the displacer moves in its cylinder in a basic beta or gamma engine. With a circular motion driving a fixed con-rod the displacer should be moving in a sinusoidal manner (that is,...