MembersPage/CngEngine (2016-02-17 13:18:07)

Certified CNG engine

4 cyl engine


Certification

There are some considerations for certification (R110 ?)

Eg. EMI: most likely series resistors will be used, not PWM-ing (with PWM-ing, special harness would be needed to pass certification EMI test).

The Certification harness might slightly differ from the production harness. Eg.

Why certify ? Third-party certification is good for certification :-)


Trigger


Low Impedance Injectors

[Hercules GISM-I1000]

3.8 Ohm measured, some sites say 1.7 Ohm

3.3 or 4.7 Ohm 50 Watt series resistor for each ?

(6.8 Ohm might be too high to open reliably).


Pressure sensors

'''MAP sensor on "air-side"


Harness for certification