Measuring method of nitrogen oxide content in oxygen content exhaust from internal combustion engine

摘要

It is compressed in stream of the internal combustion engine, the flammability blend, the piston which one cylinder (2) does the combustion chamber (11) in inside, mobility at least alternately (12) by. In order to measure the nitrogen oxide content in the exhaust which includes oxygen, with the method of being designed, the quantity, and the inlet pipe of the fuel oil which is supplied to the cylinder (2) (15) mass of the air which flows being inspected, it is transmitted in the circuit (6). Center of gravity of combustion (S), measuring numerical value at least at the time of one actual engine driving, it is decided, it is calculated the quantity of the nitrogen oxide emission, center of gravity of combustion (S) (and, the quantity of the fuel oil which is inspected and numerical value of mass of the air it is considered) on the basis of the numerical value for.