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Formulary Injected Fuel Quantity


All the variables to calculate the injectionquantity

If you look at the range of a modern vehicle and relate this to the revolutions of the engine, or even to each individual cylinder, then it is clear that there is an unimaginably small volume injected before each working cycle. The performance of modern technology will be fully apparent, if the quantities differ at various throttle positions by only a fraction of a cubic millimeter.

Four-stroke engine

Pe·be·1000

VE=


·n·z·30*

Pe·be·1000

n=


VE··z·30*

VE··n·z·30*

Pe=


be·1000

VE··n·z·30*

be=


Pe·1000

*In the case of two-stroke engines, replace with '60'!


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2001-2014 Copyright programs, texts, animations, pictures: H. Huppertz - Email
Translator: Don Leslie - Email: lesdon@t-online.de
Here you can check your calculation:
(Only for four-stroke engines!)

Please enter numbers only in five of the six fields!
Pe Effective performance kW
n RPM 1/min
z Numbers of cylinders
be Specific
Fuel consumption
g/kWh
Density of the fuel g/cm³
VE Injection amount mm³
Places behind the comma: 2 3 4 5

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