Gravimetric Blending System (GBS)
Offering unparalleled precision of +/- 0.2% for the gravimetric blending of primary, secondary, and standard reference fuels.
F5 Cetane EFI Rating System
with XCP® TECHNOLOGY
This innovative system features a state-of-the-art solenoid-style automotive fuel injector with a modified nozzle to accommodate a wide range of cetane number (CN) applications. The injector is coupled with an electrically driven injection pump that delivers a constant fuel flow rate. The injection advance is not sensitive to the physical properties of the fuel, ensuring consistent timing. The injection duration is also fixed and always completes before the start of combustion (SOC).
Fuel is supplied to the injection pump under pressure, ensuring that the fuel flow rate remains stable regardless of the fuel bowl level or the physical properties of the fuel. This results in significantly less variation in fuel quantity compared to legacy systems and reduces cycle-to-cycle combustion variation. The improved atomization of the fuel leads to better air/fuel mixing, promoting cleaner combustion and longer maintenance intervals.
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Fuel is supplied to the injection pump under pressure, ensuring that the fuel flow rate remains stable regardless of the fuel bowl level or the physical properties of the fuel. This results in significantly less variation in fuel quantity compared to legacy systems and reduces cycle-to-cycle combustion variation. The improved atomization of the fuel leads to better air/fuel mixing, promoting cleaner combustion and longer maintenance intervals.
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The CFR F5 Cetane EFI rating engines are specified equipment for testing fuels according to:
ASTM D613:
Standard Test Method for Cetane Number of Diesel Fuel Oil
IP 41:
Petroleum Products - Determination of the ignition quality of diesel fuels - Cetane Engine Method
EN ISO 5165:
Petroleum Products - Determination of the ignition quality of diesel fuels - Cetane Engine Method
Features & Benefits
The F5 Cetane EFI significantly enhances fuel atomization, improves air/fuel mixing, maintains a cleaner combustion chamber, and ensures a precise start and consistent injection duration, resulting in highly consistent fuel quantities.
The F5 Cetane EFI produces an atomized spray and improves air / fuel mixing, resulting in a more reactive mixture. This leads to a faster combustion reaction using less fuel.
Constant start of injection and a constant duration are provided by the F5 Cetane EFI, ensuring a very consistent fuel quantity.
The EFI nozzle is designed to replicate the Cetane Number (CN) rating from the legacy system.
F5 Cetane EFI Details
|
|
Mechanical Injection |
EFI |
|---|---|---|
|
Start of Injection (SOI) |
Fuel dependent, manually adjusted, varies |
Constant |
|
Injection Duration |
Fuel dependent, manually adjusted, varies with SOC |
Constant, injection always ends before SOC measurement |
|
Injection Quantity |
Fuel dependent, manually adjusted |
Constant |
|
Start of Combustion (SOC) |
Very inconsistent due to injection timing and duration |
Greatly improved due to consistent injection |
|
Injector Spray Quality |
Wet spray = soot and constantly degrading spray |
Atomized spray places focus on chemical aspects of ignition delay |
|
Engine Position Tracking |
Two fixed proximity sensors = approximation only |
Optical encoder, very precise tracking of SOI and SOC |
|
SOI & SOC Tolerance |
+/- 0.2 crank angle degrees |
+/- 0.1 crank angle degrees |
Accessories & Optional Equipment
Learn More
Volumetric Blending System (VBS)
A complete standardized system for the volumetric blending of primary, secondary, and standard reference fuels.
XCP® TECHNOLOGY
Taking integrated data to the next level, this advanced system automatically captures critical test data and displays information using bold graphics and ease-to-read charts, while eliminating manual adjustments and potential calculation errors.
Closed-Loop System
Experience an innovative and sustainable solution for the precise management of engine intake air and auxiliary cooling.
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Contact CFR to learn more about the F5 Cetane EFI Rating System
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