Engine used in torpeto ww2 submerine?

Question

They were 4 cylinder alcohal with compress air, that is all I could find out

Answer 1

You're in the wrong forum, but here's an answer anyway: they also used batteries, kerosene, or a device called a "wet-heater". Check these links :

http://www.navweaps.com/Weapons/WTUS_WWI...

http://www.navweaps.com/Weapons/WTBR_Pos...

http://www.navweaps.com/Weapons/WTJAP_WW...

http://www.navweaps.com/Weapons/WTGER_Pr...

p.s. and the words are spelled "alcohol", "torpedo" and "submarine"