Patent ID: 6105538
Filing Date: 2000-08-22
Classification: F22B,Y02E

Abstract:
A self-regulating exhaust gas boiler for the recovery of thermal energy from exhaust gases of diesel engines, the boiler comprising:a steam/water cylinder acting as a water and steam space; a convection part adapted to receive the exhaust gas from the diesel engine, the convection part acting as a vaporizer and being fitted in a vertical orientation below the steam/water cylinder and connected between the steam/water cylinder and a lower cylinder; and at least one downcomer interconnecting the steam/water cylinder and the lower cylinder;at least one flow regulation device configured to regulate an amount of water and a water level in the convection part, the flow regulation device being mounted between the steam/water cylinder and the lower cylinder; andthe convection part having generally vertically disposed pipes partly filled with water, the flow regulation device being controllable to selectively adjust the power of the exhaust gas boiler by adjusting the water level in the convection part the power changing on the basis of the different heat transfer properties of water, a water-steam mixture, and steam.