syfuga
Well-Known Member
I am thinking about using a 'Raspberry Pi' processor to monitor and log engine parameters, e.g. hours run, oil pressure, water temperature, fuel level and battery voltage. This is because my VDO Logic Combi is no longer waterproof, and therefore unreliable, and there is no room at the wheel for separate instruments.
As is usual, the float based fuel sensor fitted now is pretty non-linear (the tank tapers) and arbitrary, so I was wondering about a fuel flow sensor. Does anyone have any ideas on this. I saw a fuel flow sensor fitted on an expensive Oyster, and it makes sense if you can measure the litres used and the current rate of consumption.
As on most boats I have encountered, the excess fuel pumped by the low pressure pump and not required by the injectors is returned to the tank. Is there any reason why the return should not go back into the feed, after the filter? Obviously, if you are going to measure the flow you don't want to be subtracting the flow from the return to get a net figure?
So how is this done?
As is usual, the float based fuel sensor fitted now is pretty non-linear (the tank tapers) and arbitrary, so I was wondering about a fuel flow sensor. Does anyone have any ideas on this. I saw a fuel flow sensor fitted on an expensive Oyster, and it makes sense if you can measure the litres used and the current rate of consumption.
As on most boats I have encountered, the excess fuel pumped by the low pressure pump and not required by the injectors is returned to the tank. Is there any reason why the return should not go back into the feed, after the filter? Obviously, if you are going to measure the flow you don't want to be subtracting the flow from the return to get a net figure?
So how is this done?