Mass flow-meter for "stroke by stroke" measurement on injectors EFS ELECTRONIQUE

IFR INECTION FLOW AND RATE

PRESENTATION
The IFR (Injection Flow and Rate) is a device for measuring injection volume on a stroke-bystroke basis.
It is particularly adapted for monitoring the high-energy multi-stroke injection systems found on modern diesel motors.

ADVANTAGES
- Instantaneous flow measurement of up to 10 injections/revolution.
- Real time display of the injection rate curve.
- Injection rate identical to the measurement given by a «rate tube».
- Analysis of the injection rate and time measurements.
- Mass measurement accuracy regardless of injection conditions : pressure, speed.
- Back pressure can be regulated from 5 to 100 bars.
- Injection measurement during 180° rotation from the pump (360° motor).

DEVICE STRUCTURE
The IFR system is made up of :
-a mechanical element including measurements of volume (mass), pressure and temperature.
-an electronic element which manages the measurement cycle and carries out all the necessary calculations at each revolution.

PRINCIPE DE FONCTIONNEMENT
The injected fluid is collected in an injection chamber maintained at a constant, static pressure. This injection back-pressure can be regulated from 5 to 100 bars.
The increase of the mass in the injection chamber causes an increase in the instantaneous pressure, providing an image of injection volume.
At the end of the injection cycle, the injected fluid is transferred into a volumetric measurement chamber which performs an accurate measurement of the total injected mass. The pressure signal from the first chamber is analysed to determine all the mass measurements, the time intervals and the duration of each injection.

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