Exhaust Gas Blowing System

The exhaust gas blow system used exhaust gas from the main engines to assist with blowing the tanks to raise the U-boat. A pipe extending forward from the main engine exhaust valves, to led forward to a manifold located over the control room. From the manifold, smaller pipes runs to 8 tanks around the u-boat. The eight associated valves in the manifold were operable from within the control room.


Fig. 1. A overview of the piping on the stern section of a Type VIIC with a schnorchel.


Fig. 2. A overview of the piping around the tower, the manifold can be seen lower right.


Fig. 3. Close-up view of the manifold and the 8 smaller pipes that led to the different tanks.


Fig. 4. Close-up view of piping about the air inlet for the main engines.