BARNARD MICROSYSTEMS LIMITED
helping you keep an eye on things...
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
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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:-
These engines are designed to give low Brake Specific Fuel Consumption (BSFC) at part throttle:
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Observed on general RCV engines |
Fixed valve timing and compression engine (JP-8) |
Variable valve timing and compression engine (JP-8) |
Typical conventional automotive |
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Specific power |
82 KW / litre |
82 KW / litre |
82 KW / litre |
75 KW / litre |
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Power density |
630 g / KW |
< 350 g / KW |
< 400 g / KW |
500 - 600 g / KW |
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Full throttle BSFC |
290 g / KWhr |
270 g / KWhr |
270 g / KWhr |
300 g / KWhr |
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Part throttle BSFC (25% load) |
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396 g / KWhr |
331 g / KWhr |
440 g / KWhr |
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Links |
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Downloads |
- Slide Presentation by RCV, AutoExpo International Engine Conference, India 2004 (1.6 MB)
- Slide Presentation by RCV, SAE Small Engine & Technology Conference SETC2002 in Kyoto (335 kB)
- SAE Paper No. JSAE20024321, SETC2002 (757 kB)
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