Otto Cycle Engine.

[Dandy Dave]

Here's another Video I filmed. The engine ran flawlessly for about 5 Hours which is a full tank of gas. It only quit when it ran out.

 

 

Edited July 24, 2023 by Dandy Dave (see edit history)

[Terry Harper]

Great work Dave! 

 

T

[Restorer32]

I believe there is at Otto engine in the Rough And Tumble museum collection in Kinzers, PA.

[drhach]

In what application were these typically used? It doesn't look like the typical "hit and miss" engine that you'd see out in hay field. DId these power belt systems in shops? 

[JV Puleo]

Yes

[Guest]

Nice videos.

 

Fred Starr in the UK has written some interesting papers on valve design. There is a free to access article here:

 

https://fredstarr.com/wp-content/uploads/Chapter-22-Starr-Valve-Cooling.pdf

 

There is a more detailed article here (paywall):

 

https://www.tandfonline.com/doi/epdf/10.1179/1758120612Z.00000000013?needAccess=true&role=button

Edited July 27, 2023 by John E. Guitar (see edit history)

[Dandy Dave]

21 hours ago, drhach said:

In what application were these typically used? It doesn't look like the typical "hit and miss" engine that you'd see out in hay field. DId these power belt systems in shops? 

This particular engine was thought to originally power a generator as the size of the flywheel and pulley are key to powering that type of unit. Many did power over head jack shafts in shops to run machinery or pump water.  

[Dandy Dave]

8 hours ago, John E. Guitar said:

Nice videos.

 

Fred Starr in the UK has written some interesting papers on valve design. There is a free to access article here:

 

https://fredstarr.com/wp-content/uploads/Chapter-22-Starr-Valve-Cooling.pdf

 

There is a more detailed article here (paywall):

 

https://www.tandfonline.com/doi/epdf/10.1179/1758120612Z.00000000013?needAccess=true&role=button

Yes. Valve development has come a long way. A lot was done in WWII on aircraft as the exhaust valves were the weakest link and lead to engine failure. Sodium filled valves were found to help. 

[wayne sheldon]

A lot of early Otto engines were used to power mechanical looms used in the textile industry. They made it possible to build factories that previously needed the "perfect" river to be run by water wheel. The Otto engine also had an advantage in that it was easier to regulate the speed than was a water wheel.

 

D Dave, Interesting aside about the evolution of valves!

[Terry Harper]

13 hours ago, wayne sheldon said:

A lot of early Otto engines were used to power mechanical looms used in the textile industry. They made it possible to build factories that previously needed the "perfect" river to be run by water wheel. The Otto engine also had an advantage in that it was easier to regulate the speed than was a water wheel.

 

D Dave, Interesting aside about the evolution of valves!

Yes, and it wasn’t until the development of the first fast acting and effective waterwheel governor by Alvin and Nathanial Lombard in 1897 that the Development of hydro power to generate electricity became wide spread and practical.