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From: hans (no email)
Date: Tue Dec 14 2004 - 00:21:21 EST
Actually there are other kinds of 2-strokers. Ralph mentioned Burmeister &
Wain, Pilstick and MAK.
B & W : All of B & W engines were 2-strokers. Very few were made as "Double
action two strokers". Their correct desciption was Single action, single top
exhaust valve, turbo charged crosshead trunk engine.
Pilstick I know nothing about.
MAK Was never, to my knowledge, used in a Danish merchantman.
Sulzer was used a lot. And that was a double action 2-stroker. Compresion at
both ends of the stroke. They were complicated and maintenance heavy.
B & W was very simple and very reliable and huge in size, but the torque was
incredible.
They did make a couple of engines in the double action class, but they were
not very successful. They were in the 7000 hp range.
Just a little walk down memory lane.........now back to Volvos and Lehmans!
Hans
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