A New Method for Measuring Fuel Flow in an Individual Injection in Real Time

Felix Leach, Martin Davy, Manus Henry, Michael Tombs, Feibiao Zhou

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Knowledge of fuel mass injected in an individual cycle is important for engine performance and modeling. At the moment, such measurements are not possible on engine or in real time. In this article, a new method using Coriolis flow meters (CFMs) and a new, patented, signal processing technique, known as the Prism, are introduced. CFMs are extensively used for flow measurement both in the automotive industry and further afield and, when coupled with the Prism, have the potential to make these challenging high-speed measurements. A rig-based feasibility study was conducted injecting very small quantities of diesel (3 mg) at pressures of up to 1000 bar at simulated engine speeds of up to 4000 rpm. The results show that these small quantities can in principle be measured. The results also reveal a previously unknown behavior of CFMs when measuring very low flow rates at high speed. The study concludes that by combining high-resonant frequency flow tubes with the Prism technology in a new instrument - the fast next-generation Coriolis (fast NGC) flow meter - it will be possible to measure individual injector flow rates on engine in real time.

Original languageEnglish
Pages (from-to)687-695
Number of pages9
JournalSAE International Journal of Engines
Issue number6
Publication statusPublished - 3 Apr 2018
Externally publishedYes


Advanced Propulsion Centre Limited (grant number: PGC015)

ASJC Scopus subject areas

  • Automotive Engineering
  • Fuel Technology


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