QFI™ System
The Quantum Fuel Injection System (QFITM) is a family of products which has been developed by Scion Sprays using the Company’s patented Pulse Count Injection (PCI) Technology.
QFITM 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, QFITM provides a low cost injector with smart controls which is easy to maintain. When the single QFITM module is attached to the throttle body the product solution guarantees excellent sealing in a harsh environment and is easy to replace if necessary (also see pictures at the right).
Quantum Engine Management (QEM)
QEM, the QFITM Electronic Engine Management System, is based upon a printed circuit board concept, embedded software and a software interface.
- Printed circuit boards
The printed circuit boards are specified according to the particular use and the features included in the product solution.
- Embedded software
The QFITM embedded software is MISRA compliant
(Motor Industry Software Reliability Association|).
- Interface software
Scion-Sprays developed an easy to use QEM software interface which is PC based.
An introductory presentation is included under Resources at the right.
Diagnostics can be operated by standard protocols or using Scion-Sprays’ own PC based QEM Interface software.
Main Features of Quantum Fuel Injection
- 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.
- QFITM Systems offer a unique proposition for small engines
- Engine independent,
- Solenoid driven pump and metering system with atomization,
- Load, temperature and throttle position sensors.
Detailed Product Deliverables
- 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
Delivering economic fuel consumption.
Minimised emissions.
- 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.