QFI™ System

The Quantum Fuel Injection System (QFI^TM) is a family of products which has been developed by Scion- Sprays using the Company’s patented Pulse Count Injection (PCI) Technology.
QFI^TM is a fully integrated solution, including throttle body, electronic engine management system, injectors and sensors. The engine management system controls fuel delivery and ignition according to the requirements of the engine based on speed, load, temperatures etc. Additional functions such as idle speed control or electronic throttle control are included depending on the application.

Thanks to its modular design, QFI^TM can be easily tailored to suit any engine.

Diagnostics and calibration can be operated by standard protocols or using Scion-Sprays’ own PC based QEMS Interface software.

Advantages

• Cost savings.
  Component elimination and integration.
  Product variety reduction through flexible product design.
  Low number and low complexity of parts and components.
  Easy maintenance.
  Low variety in spare parts.
• Optimized fueling under all conditions
  Optimised fuel consumption.
  Minimised emissions.
• Easy start
  Using optimum fuelling at all temperatures and the integrated fuel atomization process, quick clean starts are readily and repeatedly achievable.
• Smooth and rapid response to load changes
  With throttle position and engine speed inputs, accurate fuelling with rapid compensation is achieved to any load change, even from no load to full load, with minimum drop in speed.
• Low susceptibility to fuel varnishing and stale fuel issues
  Minimising the residual fuel in the intake port during shut-down and the inherent check-valve sealing of the injector prevent any fuel evaporation during shut-down or soak periods. 
• QFI^TM Systems offer a unique proposition for small engines
  - Engine independent,
  - Solenoid driven pump and metering system with atomization,
  - Load, temperature and throttle position sensors.
• Life cycle compliance
  Durability by class of use and/or emission legislation.
  Low number of moving parts and electronic components.
  High recycle ability at end of life.
• Operation optimisation
  Easy to start, requires no choke, but delivers ideal start fueling under all conditions.
  Low susceptibility to stale fuel or fuel varnishing.
  Smooth response through rapid changes in fuel quantity.