Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: Alan UK on July 23, 2021, 08:34:55 am

Title: Re: Scratch Built Rotary Valve Model Engine
Post by: Dampfopa on July 24, 2021, 05:40:05 am

Two videos that clearly illustrate the rotary valve principle. Thank you for showing them.

Title: Re: Scratch Built Rotary Valve Model Engine
Post by: Alan UK on July 24, 2021, 05:36:55 am

An interesting variation. Markilin appear to have used a separate shaft for the valve driven via gearing from the crankshaft.
I really like the inline flyball governor.

Title: Re: Scratch Built Rotary Valve Model Engine
Post by: parallelmotion on July 23, 2021, 06:52:43 pm

Enjoyed the video. Marklin used this rotary valve design in one of its toy engines about 100 years ago:

https://youtu.be/LOht5uOvhb0

Title: Re: Scratch Built Rotary Valve Model Engine
Post by: PO9R4S4CHE on July 23, 2021, 12:34:32 pm

great share.  thanks for making this video.

Title: Scratch Built Rotary Valve Model Engine
Post by: Alan UK on July 23, 2021, 08:34:55 am

Saw this on ebay and thought that it was an interesting and unusual design.

Scratch Built Rotary Valve Model Engine (https://youtu.be/63EnNWzYFvI)