diesel fuel flow sensor

[nigelmercier]

I looked into this, there is no way it can be done with one sensor. I considered using an air-flow sensor (I even bought one) but in the end I decided that it was easier just to use the fuel consumption vs. rpm formula.

 

[Mechatronica]

Dear colleagues

if someone interested

We can offer rigid and precise fuel flow meters Eurosens Delta
(adopted for supply-return measurements)

now we have NMEA2000 version, at screenshots it working with Lowrance

 

[Paul&Ness]

Where can we see more information on your solution?

 

[knuterikt]

Could you utilise something from a diesel car? My peugeot displays real-time mpg figures so it must be measuring flow to fuel pump minus return to fuel filter (that's where the return goes on mine I think, from memory). These bits from a scrapyard shouldn't cost much should they? Can't be in that much demand (yet).

You have common rail engine? The consumption is based on opening time for injectors and the source is the ECU, no flow sensor.

 

[RichardS]

Dear colleagues

if someone interested

We can offer rigid and precise fuel flow meters Eurosens Delta
(adopted for supply-return measurements)

now we have NMEA2000 version, at screenshots it working with Lowrance

Your example shows a flow rate of 100 L/hr.

Will your device show flow rates as low as 2L/hr with any kind of accuracy?

Richard

 

[rogerthebodger]

Your example shows a flow rate of 100 L/hr.

Will your device show flow rates as low as 2L/hr with any kind of accuracy?

Richard

Richard I am also interested

This may give some info on accuracy.

http://eurosensplus.com/download/Fuel flow sensors EUROSENS_main technical data (en_v2.2).pdf

But percentage accuracy is normally quoted as a percentage of maximum flow rate not the measures flow rate

I started to look at flow measurement using a venturi or orifice plate and manometer. I did find a differential pressure transducer that would measure very low pressure differential but have not found a venturi small enough to measure very small flow rates yet.

 

[reeac]

You have common rail engine? The consumption is based on opening time for injectors and the source is the ECU, no flow sensor.

That's my understanding also and that's why the advent of fuel computer displays in cars coincided with the adoption of electronic injection injection for petrol and common rail for diesel.

 

[gordmac]

Modern cars seem to know quite accurately how much fuel is in the tank, presumably very accurate float thingy. Could this be used to measure fuel consumption?