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Summary of change:
'''Certified CNG engine''' 4 cyl ??? ---- '''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) Why certify ? Third-party certification is good for certification :-) ---- '''Trigger''' * primary trigger: HALL (?) ** pattern ? * secondary trigger: HALL (?) ---- '''Injectors''' [http://enerma.pl/en/injectros/3898-injector-hercules-gism-i1000-bf.html Hercules GISM-I1000] '''1.7 Ω''' * Opening time - 2.5 ms * Operating temperature - 20 ° C (or -40C) to +120 ° C 3.3 or 4.7 Ohm 50 Watt series resistor for each ? (6.8 Ohm might be too high to open reliably). ---- '''Harness for certification''' * 1 or 4 injectors ? * signal generator * can TUV apply 13.5V (12..14V) DC supply ** or should we include a 230V => 12V supply with the test setup ?
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