Supplementary intercooler for internal combustion engines

A supplementary intercooler for cooling engine air after it has passed through the turbocharger of a vehicle's turbocharged internal combustion engine, but before it enters the engine, comprising:

• a main body having an inlet for capturing at least a portion of the turbo's air charge and an outlet for routing the air charge to the engine after passing through the intercooler;
• electrolysis means in the main body for producing hydrogen from water and means for injecting the produced hydrogen into the air intake stream;
• a container for holding water and a water pump for injecting water from the container to the electrolysis means to be converted into hydrogen;
• and
• means for activating the water pump and the electrolysis means when the intake charge has reached a set pressure.