High accuracy of ±0.5% reading accuracy
Continuous measurement of the amount of fuel injected with each stroke.
In diesel vehicles, with stricter exhaust gas regulations, high-pressure injection systems that atomize the fuel spray of diesel engines to reduce exhaust emissions have become mainstream. However, vibrations and noise generated by high-pressure injection and rapid combustion are becoming a new problem. Therefore, pilot injection systems are currently being put into practical use. Pilot injection systems perform a preliminary injection (pilot injection) and burn the fuel once beforehand, which suppresses the rapid combustion when the main injection is performed. As a result, they have the characteristic of reducing vibrations and noise, and are attracting attention as an effective method for complying with exhaust gas regulations.
The newly announced FJ-6000 pilot injection volume measurement device is equipped with a newly developed high-sensitivity pressure sensor for pilot injection measurement, in addition to the pressure sensor for measuring the main injection volume. This enables continuous measurement of the pilot injection volume preceding the main injection with high precision of 0.2 mm³/str (reading accuracy of 0.5%) per stroke. This makes it compatible with split injection systems that repeat injection several times.
The FJ-6000 is a measuring device that strongly supports future engine development, as it can measure the injection volume and injection rate of diesel engine injection systems, as well as the injection volume and injection rate of direct injection gasoline engine injection systems and the injection volume and injection rate after the main injection.
