Injection Analyzer

Instrument for the simultaneous measurement of injection rate and injection quantity. The Injection Analyzer is used for investigating hydraulic parameters in the course of development work on high-pressure injection systems.

Injection Analyzer
Components of the Injection Analyzer: Hydraulic unit (top), evaluation software (bottom left), control unit (bottom right)
Schematic cross-sectional diagram of the hydraulic unit (installed vertically)
The measuring principle selected generates a basic signal with an unprecedented information content and quality that permits a significantly more detailed analysis of injection cycles. In conjunction with a highly efficient electronic evaluation unit performing principal calculations in real time, this IAV product is becoming a tool that is capable, within an optimized time framework, of addressing all of the increasingly complex tasks involved in developing injection systems.

Technical details
  • Efficient measurement data recording unit; sampling rate 100 kHz per channel   
  • Direct lift-to-lift measurement of injection rates
  • Direct lift-to-lift computation of injected masses or injected volumes in real time
  • Up to 7 partial injection events per lift
  • Measurement accuracy: << +/- 0.2 mg/lift*
  • Application temperature range: -30°C to +125°C
  • Minimum detectable injection interval: 30 µs*
  • Selectable fuel backpressure: 5-180 bar
  • Measurement range: 0.3 to 150 mg/lift (configurations with greater measurement range in preparation)
  • No moving parts of relevance to accuracy, making the system largely immune to wear and keeping maintenance to a minimum
  • Suitable for diesel and gasoline fuels
  • TCP/IP data interface for remote control by host computer systems
  • Simple data handling and convenient processing capabilities
  • Dimensions d x l approx. 140 x 315 mm plus injector mount

* The measuring unit's accuracy has been determined in IAV's calibration facility under standardized boundary testing conditions and is based on national standards. The measurement accuracy capable of being achieved also depends on boundary testing conditions.


Online display during measurement
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  • Injection rates   
  • Injection quantities
  • Injector control signal (current or voltage)
  • Injection limits (start, end) of partial injection events
  • Boundary parameters (system backpressure, temperatures, speeds, etc.)
  • Error status

Comprehensive analysis options after completing a measuremen
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  • Scatter display of injection rates and injector actuation over all measured events (period comparison)
  • Calculation of minimums and maximums, as well as the mean for injection quantities, injection times, etc.
  • Calculation of standard deviations
  • Storage of all data measured (injection rate curves, injection quantities, injector actuation, boundary parameters, etc.)
  • Convenient generation of printable graphics   
  • Convenient functions for loading and playing measurement results
  • Curve characteristics for injection quantities, injection times, etc. (over all measured injection events)
  • Extensive capabilities of displaying and comparing injection rates and injection quantities for any injection events as well as associated injector actuations

IAV Automotive Engineering, Inc. - 4110 Varsity Drive, Ann Arbor, Michigan 48108 USA • Phone: +1 734 971-1070 • Fax: +1 734 971-0570 • info@iav-usa.com