single acting enclosed crankcase

A special section just for steam engines and boilers, as without these you may as well fit a sail.
User avatar
DetroiTug
Full Steam Ahead
Full Steam Ahead
Posts: 1863
Joined: Fri Nov 27, 2009 5:56 pm
Boat Name: Iron Chief
Location: Northwest Detroit

Re: single acting enclosed crankcase

Post by DetroiTug » Fri Nov 17, 2017 3:50 pm

A twin simple has very smooth output, there are no deadspots of torque as there is with a single or double expansion compound, I ran my 3 X 4 twin with no flywheel for a long time and then added a flywheel for no other reason than peer pressure :), there was very little difference afterwards. It's only real purpose is a pulley to drive the generator. Car steam engines didn't use flywheels.

Outboard motor shear pins float in a slot and many of them are 1 and 2 cylinder. The key, no pun intended is to size it appropriately.

-Ron
Post Reply