Not being content with already having an engine project going, I decided to have a go at the Vince Gingery Atkinson differential design. This is another engine designed by Mr Atkinson in the late 19th century, but it is quite unlike the Atkinson cycle engine that is more familiar to people.
This is a 4 stroke IC engine, but it it has 2 pistons working in a single cylinder. The two pistons work in opposition with each other for compression, power, exhaust and intake cycles. It's a bit reminiscent of the Comer "knocker" engines- although I think they were 2-stroke Diesels.
Here's the book:
And here's a video of it in action:
[ame]http://youtu.be/fgcOYEpKrMY[/ame]
I've made a fair start on mine.
I have the patterns done:
And I've been running up the charcoal furnace:
I still need to make a flywheel, but for that I can use the same pattern as the Atkinson cycle engine I made.
By all reports, including Vince Gingery's, this engine is a PITA to get working. Oh well, I guess forewarned is forearmed. I'll be really careful on my cylinder bore to make sure it's parallel and nicely finished.
Stay tuned...
This is a 4 stroke IC engine, but it it has 2 pistons working in a single cylinder. The two pistons work in opposition with each other for compression, power, exhaust and intake cycles. It's a bit reminiscent of the Comer "knocker" engines- although I think they were 2-stroke Diesels.
Here's the book:
And here's a video of it in action:
[ame]http://youtu.be/fgcOYEpKrMY[/ame]
I've made a fair start on mine.
I have the patterns done:
And I've been running up the charcoal furnace:
I still need to make a flywheel, but for that I can use the same pattern as the Atkinson cycle engine I made.
By all reports, including Vince Gingery's, this engine is a PITA to get working. Oh well, I guess forewarned is forearmed. I'll be really careful on my cylinder bore to make sure it's parallel and nicely finished.
Stay tuned...