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Nozzle Suggestion

This document provides a table of suggested nozzle diameters for different types of gas-powered vehicle conversions based on the original power per cylinder of the vehicle. The table lists nozzle diameters for both LPG and CNG fuel systems at various pressure levels and indicates the corresponding power output in kW and HP. Nozzle diameters range from 1.5mm to 3.5mm, with larger diameters suggested for higher power applications. A note explains that the values are just an indication and real maximum capacities depend on additional system characteristics.

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Christian Arias Montoro
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127 views1 page

Nozzle Suggestion

This document provides a table of suggested nozzle diameters for different types of gas-powered vehicle conversions based on the original power per cylinder of the vehicle. The table lists nozzle diameters for both LPG and CNG fuel systems at various pressure levels and indicates the corresponding power output in kW and HP. Nozzle diameters range from 1.5mm to 3.5mm, with larger diameters suggested for higher power applications. A note explains that the values are just an indication and real maximum capacities depend on additional system characteristics.

Uploaded by

Christian Arias Montoro
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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SUGGESTED NOZZLES TABLE

Values indicate original power per cylinder of the car


SUGGESTED kW/cyl HP/cyl
DIAMETER LPG 1 bar CNG 2 bar LPG 1 bar CNG 2 bar
up to up to up to up to
3,5 mm 33 29 45 40
3,0 mm 29 26 40 35
IG1 2,5 mm 26 22 35 30
2,0 mm 18 15 25 20
1,5 mm 11 11 15 15
LPG 1,8 bar CNG 1,8 bar LPG 1,8 bar CNG 1,8 bar
IG1 Apache 1,8
3,5 mm 53 30 72 41
3,0 mm 44 25 60 34
bar
2,5 mm 35 20 47 27
2,3 mm 31 18 42 24
2,0 mm 25 14 34 19
1,5 mm 15 8 20 11
3,5 mm 37 33 50 45
IG1 Apache 3,0 mm 33 29 45 40
IG2 Metis 2,5 mm 26 22 35 30
IG2 Namur I/II 2,0 mm 18 15 25 20
1,5 mm 11 11 15 15
2,75 mm 30 25 40 35
2,5 mm 26 22 35 30
IG1 APACHE HD
2,0 mm 18 15 25 20
1,5 mm 11 11 15 15
3,5 mm 37 33 50 45
3,0 mm 33 29 45 40
IG5 Noumea 2,5 mm 26 26 35 35
2,0 mm 18 18 25 25
1,5 mm 11 11 15 15

3,0 mm 33 29 45 40
IG7 Dakota 2,5 mm 26 26 35 35
2,0 mm 18 18 25 25
1,5 mm 11 11 15 15
3,5 mm 43 38 59 51
IG7 Dakota LHF 3,0 mm 39 27 53 37
2,5 mm 29 25 40 34
2,0 mm 20 17 27 23
1,5 mm 12 10 16 13
Note: this is just an indication; the real maximum flow capacity of the injector depends
from other components' characteristics (gas composition, gas differential pressure, gas
temperature, ambient temperature, flow characteristic of reducer, etc…). For CNG values
we considered a 10% loss from petrol engine max power.
Version 03/2015

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