Diesel Applications : 250 bar peak cylinder pressure - no problem
Peak combustion forces in Diesel engines are much.... much higher then the peak combustion in gasoline engines. It's logic to think that the load on the gears of the GoEngine mechanism in a diesel application will be much higher then on gasoline engines. But the opposite is true.... because..... we can use a much smaller eccentricity on a diesel application. An eccentricity of 0,5 to 1 mm is normally enough to realise the required variation in compression ratio on a diesel application, and because the load on the gears is directly related to the eccentricity this means that the load on the gears in a GoEngine diesel application is only 1/2 the load of a gasoline application.
FRICTION REDUCTION
With the Gomecsys VCR technology for diesel the friction is reduced in two ways:
- Bearing speed of the eccentric and bigend are running with half the crankshaft speed which results in a lower friction compared to the normal big-end bearings that runs with eqaul the crankshaft speed.
- The variation of the compression ratio makes it possible to reduce the compression ratio up to 12:1, a level where peak pressure is lowered to levels at 150 bar (in stead of 200 bar) and as such reducing peak bearing load and peak friction point.
