Intercooling system Flow governor for charge-air cooling water The flow governor А for charge−air cooling water is attached to the intercooler and controls as a function of the charge-air pressure and output the flow of raw water through the intercooler and, consequently, the charge-air temperature too. 1 Functional description The cylindrical housing of the flow governor is subdivided by a diaphragm. Charge-air pressure is supplied to one side of the diaphragm; on the other side a spring acts as a counterforce.
If the force exerted by the charge−air pressure is smaller than the spring force (idle speed, low load), the annular slide valve is kept in a position in which raw water in the bypass can flow past the intercooler. As engine output increases, the force exerted by the charge-air pressure becomes higher than the spring force, and the annular slide valve allows raw water to flow to the intercooler. А Charge-air connection Б Raw-water intake 1 2 26