Patent ID: 7334461

Claim:
A method of measuring exhaust gas of internal combustion engines, preferably in test benches, through the use of CVS (constant value sampling) full-flow systems whereby exhaust gas of the internal combustion engine is mixed with combustion gas, preferably air, and whereby the volume flow or mass flow of the combustion air is determined by the CVS full-flow system and whereby the maximum quantity of combustion air needed by the internal combustion engine is thereby exceeded, characterized in that an essentially constant and fully conditioned quantity of humidity-conditioned and/or temperature-conditioned combustion gas is fed into the internal combustion engine at any time whereby this quantity is at least equal to the maximum quantity needed by the internal combustion engine and whereby combustion gas not needed is fed into the CVS full-flow system, and wherein a pre-determinable set pressure value is adjusted for the combustion gas upstream from the CVS full-flow system and also upstream from the point of conditioning of the combustion gas.