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The RCV rotating cylinder  engine

RCV 35cc UAV JP8 engine under dynamometer test

- from http://www.rcvengines.com

 

 

 

 

 

 


 

Rotating cylinder engines: an introduction...

- from http://www.rcvengines.com

from http://www.sae.org/aeromag/techupdate/09-2006/2-26-8-5.pdf

RCV engines for UAV applications - Heavy Fuel, JP8, JP5

The RCV engine is particularly suited to UAV applications because it runs extremely well on heavy fuels, typically generating the same power levels that it does on gasoline. The excellent JP5/JP8 running characteristics, are due to the compact combustion chamber and high internal turbulence levels, generated by the large squish area, sharp valve edges and rotating cylinder.

RCV have developed and patented a reliable cold start system, for use with heavy fuels.

Benefits include:-

  • High power density
  • Low BSFC for long endurance missions
  • Excellent JP8 performance
  • Ultra compact size
  • Suitable for ducted fan operation
  • These engines are designed to give low Brake Specific Fuel Consumption (BSFC) at part throttle:

     

    Observed on general RCV engines

    Fixed valve timing and compression engine (JP-8)

    Variable valve timing and compression engine (JP-8)

    Typical conventional automotive

    Specific power

    82 KW / litre

    82 KW / litre

    82 KW / litre

    75 KW / litre

    Power density

    630 g / KW

    < 350 g / KW

    < 400 g / KW

    500 - 600 g / KW

    Full throttle BSFC

    290 g / KWhr

    270 g / KWhr

    270 g / KWhr

    300 g / KWhr

    Part throttle BSFC (25% load)

     

    396 g / KWhr

    331 g / KWhr

    440 g / KWhr

     

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