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Fuel Dispensers TATSUNO EUROPE ‐ Installation and User Manual , revision 10, January 2022
NOTE‐>ADB
AdBlue® is a registered trademark of VDA. AdBlue® is also known as AUS 32 (Aqueous Urea Solution) or
DEF (Diesel Exhaust Fluid).
NOTE‐>ADB
Legislation and a technology of selective catalytic reduction. All vehicles weighing over 3.5 tons belong to
heavy vehicles and new European regulations for heavy vehicles relate to them. These regulations specify maximum values
of PM and NOx emissions. For the vehicles to meet new European regulations of EUTO IV and EURO V, European automotive
manufacturers have to implement new technologies. A technology of selective catalytic reduction (SCR) includes destruction
of NOx by the reaction with ammonia when harmless water and nitrogen are produced. The solution of urea required by the
SCR system is called AdBlue®. It is stored in a tank in a vehicle and injected to the exhaust system where the reaction occurs.
To meet the Euro IV standards, the expected consumption of AdBlue® solution is about 5% of diesel consumption which
requires a tank with a volume between 50 to 100 litres. A consumption of 6‐7% is expected for Euro V.
1.3.4. WINDSHIELD WASHER FLUID CHARACTERISTICS
Windshield washer fluid for motor vehicles (hereinafter referred to as "WSE") is a solution of water,
detergents, ethanol, and other admixtures. A percentage content of individual components in the agent
may differ. However, a maximum content of ethanol in the agent is limited to 85%.
CAUTION
It is prohibited to use a dispenser for dispensing an agent with a higher content of ethanol than
85%.!
1.3.5. CNG CHARACTERISTICS
CNG is a business name for Compressed Natural Gas. Natural gas is formed by 92–99 % of methane and the rest
is formed by inert gases.
Table 2 ‐ Physical properties of CNG and their comparison to other fuels
Octane number, range
Cetane number, range
Flash temperature [°C]
Burning temperature [°C]
Ignition temperature [°C]
Boiling temperature [°C]
3
Density at 15 °C [kg/m
]
Min. heating value of gaseous phase [MJ/m
or liquid phase [MJ/kg]
Explosive limit in air mixture [%]
Hazard class
The table means the following:
CNG is, compared to liquid fuels (petrol, diesel, LPG), lighter than air.
The flash temperature of petrol and air mixtures is significantly lower than natural gas and air
mixtures which increases the potential of the risk at petrol drives compared to natural gas
drives.
Natural gas has the most favourable explosive limit in the air mixture of all fuels.
In terms of fire safety, CNG is less risky than petrol or diesel.
CNG
128
‐
152
650
537
‐ 161.6
0.678
3
]
34
4.4 to 15
IV
Gasoline
Diesel
91–98
‐
‐
51‐55
‐ 20
55
‐ 20
80
340
250
30‐210
180‐370
‐42 to ‐0.5
720‐775
800‐845
43.5
41.8
0.6 to 8
0.6 to 6.5
I
III
13
LPG
100‐110
‐
‐69 to ‐60
‐40
400‐450
502‐579
46.5 94
1.5 to 9.5
I
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