Delphi Multec 3.5 - Linear and Working Flow Range

Multec 3.5 Fuel Injector Application Manual Product Description
Delphi Energy and Chassis Systems
Revision: 11/05-1 3-31
1
0
Driver
Logic
Injector
Current
(Amps)
1.04
0
95
0
Injector
Stroke
(
µm)
Injector
Voltage
(Volts)
12.5
0
-75
0.5 ms
Time
Figure 3-16 - Injector Flow Curve Tailbiting
3.10 Linear and Working Flow Range
3.10.1 Linear Range
Linear Range is a measure of the portion of an injector flow curve that is
linear. It is a function of opening and closing response times. The SAE
J1832 standard test period is 10 ms.
Linear Range = Maximum regression flow divided by the minimum
regression flow where actual flow falls within +/-5% of the linear
regression line determined by the 3.0, 4.0, 5.0, 6.0, and 7.0 ms pulse-
widths and a 10.0 ms repetition rate. Refer to Figure 3-17.