Case Studies Tested & Proven Technology

Bhagwan G-Cylinder trial proves potential for savings at sea

A fuel saving above 20% has been achieved in a long-term test of a carbon nanotube device fitted to a Bhagwan Marine vessel.

The G-Cylinder, developed by an Australian Research & Development company, utilises carbon nanotube technology from Japan to enhance fuel combustibility, reduce engine wear, cut emissions and improve power delivery.

Fitted to the fuel line in a relatively simple, low cost procedure, the G-Cylinder conducts radiant heat from the engine room to stimulate the emission of far infrared radiation within the graphene and carbon nanotube. This infrared radiation excites the diesel fuel molecules, disentangling and dispersing them so that they are optimised for combustion

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University of Western Australia


¼ throttle tests with the G-cylinder show a noticeable decrease in specific fuel consumption.

 December 10th 2004.

 1966 Holden 161 “red” engine, 2,640cc

Test 4: 0.456 kg/kWh ¼ throttle, with G-cylinder

Test 5: 0.549 kg/kWh  ¼ throttle,  no G-cylinder

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The results from test 4  (¼ throttle with the g-cylinder) gave a 17% reduction  in specific fuel consumption in comparison to test 5 (¼ throttle no g-cylinder)

The tests conducted at UWA show the G-cylinder achieving 17% improved fuel consumption. The short 15 minute tests do not conclusively evaluate the G-cylinder. Results indicate and reinforce that this could be the worlds most advanced superior fuel saving device.

Japanese Vehicle Certification Institution


The reductions in carbon monoxide and residual hydrocarbons are confirmation that the combustion efficiency has improved.

CO (g/km) Carbon monoxide HC (g/km) Hydrocarbon Nox (g/km) Nitrogen oxides CO2 (g/km) Carbon dioxide Mileage (km/l) 10-15 Mode
Without G-Cylinder 1.199 0.291 0.761 288.0 9.00
9.00 1.001 0.106 0.712 264.9 9.90
Fluctuation −0.198 −0.185 −0.049 −23.1 +0.90
Ratio −16.51% −63.57% −6.43% −8.02% +10.0%

16th 12 2002 1990 NISSAN Q-WBYD21 2600cc Diesel, Manual T/M Diesel 10-15 Mode * Japanese Vehicle Certification Institution

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Real World Fuel Saving Results on Japanese Ships using PCM devices

Name Prefecture Work Weight Horsepower Engine Saving(%) PCM Model Summary
Tonbolo Kagoshima Run by fishpond 5 tonne 300hp 6400cc Yammar 38.7% 1×620 3mths data before installing PCM – 1100L/1350L/1550L 3mths av. 4000L
3mths data after installing PCM – 830L/710L/900L 3mths av. 2450L
Lopez Okinawa Diving 5 tonne 329hp 6000cc Yammar 22.4% 1x PCM620 More than 22.4% more efficient after installing PCM in same condition of without PCM
The fifth Sho-tomaru Wakayama Fishing 8 tonne 700hp 13400 Isuzu 35% 1x PCM620 without PCM—850rpm 11.5L/h, with PCM ——-800rpm 8.7L/h
Ken-ei maru Kouchi Fishing 20 tonne 730 18000 Yammar 30% 2x PCM620 Without PCM—1000L Diesel Approx. 40- 50L/h in 3days work of 6-8h/day,
With PCM—1000L Diesel, approx. 30-35L/h 4days work, also reduced the noise and the colour of exhaust gas.
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