IAV Injection Analyzer

The Injection Analyzer is a high-performance system for conducting hydraulic measurements on injection valves. It is used whenever differentiated analyses of injection cycles need to be provided.

The measurement principle selected distinguishes the Injection Analyzer from comparable instruments. The system computes the injection rate as a function of the dynamic increase in pressure in a fuel-filled measurement tube into which the nozzle injects fuel directly. With no moving parts, delays in the measurement system are ruled out.

Unlike other measuring systems, the Injection Analyzer can simultaneously measure injection rates as well as injected fuel quantities as single events, and display the rate signal with very high precision. A further advantage: As there are no moving parts, the measuring unit requires hardly any maintenance and measurement results can be reproduced exactly. The system is not sensitive to high and low temperatures either, making it suitable for use in temperature-control chambers as well.

Apart from the hydraulic unit, the Injection Analyzer also includes a separate electronic unit that not only records and processes data but also coordinates the measurement technology. Included in the package, the system is controlled by powerful software that is easy to use and displays all information in a clearly structured manner. In addition to displaying data in real time, it also provides the capability of re-playing saved measurement readings (e.g. for presentations) and analyzing them in detail. The Injection Analyzer can also be connected to other test-bench software by a TCP/IP data interface.

Technical specifications

  • Direct shot-to-shot measurement of injection rates
  • Direct shot-to-shot measurement of injection masses or injected fuel volumes
  • Measurement of injection delays
  • Up to seven partial injection events per stroke
  • Measurement ranges: 0.3 to 150 mg/stroke; 0.6 to 400 mg/stroke; 5 to 1600 mg/stroke and 20 to 6500 mg/stroke (versions with a wider measuring range are in preparation)
  • Measuring accuracy: +/- 0,2 mg/stroke to +/- 1% of the value measured (depending on measurement range)
  • Application temperature range: -30°C to +125°C
  • Analog inputs for parameterizing by the user (option)
  • Measurement of extremely small peak-to-peak distances (30µs)
  • Adjustable fuel backpressure: 5-180 bar
  • Suitability for diesel and gasoline fuels (biofuels etc.) on request