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Type IX D2 propulsion...
Posted by: SnakeDoc ()
Date: February 25, 2009 07:05PM

Type IX D2 had two MAN 9-cylinder supercharged engines, 2 SSW electric motors and 2 MWM 6-cylinder engines.
General descripion is that: MWM engines were used for cruising, thus enabling main MAN engines to drive electric motors as generators to recharge batteries.
As I look on blueprints, I see these MWM engines are in set with some kind of generators and are not connected to main propeler shafts.
MAN engines and SSW motors are connected to shafts (through clutches).
And now - how it all together works? I think cruise mode is some kind of indirect, diesel/electric drive. MWM engines with their generators provide power to drive electric motors. But how these motors can act as generators powered by main MAN engines to recharge batteries? Unless in that mode only one motor drives the boat, and the other recharges batteries.
I hope I clearly expressed my doubts.

--
Thanks, regards
Maciek

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Subject Written By Posted
Type IX D2 propulsion... SnakeDoc 02/25/2009 07:05PM


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