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Has anyone fitted a vacuum sensor/transducer on the oil return line so that they can observe in real time.  I don't want to use a old school vacuum gauge as I want to be able to log it.  What sensor did you end up using?

 

Cheers, Rob. 

  • Re: Vacuum sensor on oil return line

    by » 2 years ago


    The oil return line should always be seeing a slight pressure (crankcase pressure) or atmospheric pressure, never a vacuum.


  • Re: Vacuum sensor on oil return line

    by » 2 years ago


    Rob may be referring to the oil tank (reservoir) - oil cooler - oil pump - crankcase line,  which can be expected to be under negative pressure during engine running. Why Rob would wish to separately monitor this system is a ????  


  • Re: Vacuum sensor on oil return line

    by » 2 years ago


    Sean you are right, the reason I want to monitor this is that I am experimenting with remote operation and this is a data point that has been identified as a key marker. 

     

    Rob.  


  • Re: Vacuum sensor on oil return line

    by » 2 years ago


    Hi Rob,

     

    "..........identified as a key marker. " For what?

    The pump will cause a slight vacuum, in the oil supply line identified BUT also high pressure on the other side of its system. Most aircraft will have some way of monitoring the high pressure side (which has a very strong relationship with oil temp) as this is one of the key indicators of engine wellbeing.).

    What additional engine condition monitoring will be achieved by monitoring the low pressure/vacuum side of this system?


  • Re: Vacuum sensor on oil return line

    by » 2 years ago


    Slightly off topic, but Sean,

    that‘s an interesting comment you made („ Most aircraft will have some way of monitoring the high pressure side (which has a very strong relationship with oil temp) as this is one of the key indicators of engine wellbeing.).

    Is there a link you can provide on further details?

    Regards

    Peter


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