Injection of water on a BMW Safety Car and M4 series soon?

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BMW developing water injection! This is very good news for all supporters of the technology water injection in engines defended on since 2003 (!!), such as on the subject about theinjection of steam in an engine!

BMW has indeed developed an integrated water intake air injection system of an engine turbocharged gasoline. This system reduces the fuel consumption of the engine 8% while increasing performance and reducing emissions. Ultimately, it is conceivable that such a system can be integrated with a range extender electric vehicle, similar to the GM Volt or Vtrux Via Motors.

This innovation, hoping it will spread over the entire BMW range, should nail the beaks of critics of injecting water into combustion engines (and there is not a bit!) ...

Then yes water injection in engines work and yes it is good and yes we know why... And no it was not operated for reasons ... mmmm ... dark?

Yet it was already known that injection of water, under certain conditions, is beneficial for more than a century !! See the work of the engineer Clerget (Among others)! Thank you # BMW and too bad for other manufacturers ... but they should do so quickly!

Learn more and technical debate on water injection by BMW


1 comment on "Injection of water on a BMW M4 Safety Car and serial soon?"

  1. Contrary to say in English Mr. Clerget patent application, I do not think that the maximum temperature in the cylinder of a gasoline engine is sufficient to separate the oxygen from the hydrogen from water.
    Besides this operation would be without energy interest since it would provide as much energy for this separation that it would be recovered by combustion.
    However, at the same temperature, especially if it is relatively low but beyond 300 ° C, the expansion of the water vapor is much higher than that of air. Resulting in greater pressure on the plunger all things being equal and therefore better performance.
    Diesel engines emit soot microparticles because they are set so that the combustion is incomplete because then the temperature is too low, so that it forms very toxic nitrogen compounds. But carbon released into the particulate filter, the fuel lost, wasted.
    The performance would be better if combustion was complete but an injection of water by cooling the cylinder temperature prevents the formation of oxides of nitrogen and increasing the pressure on the free piston.
    This system would be used on jet engines. But the weight of the water to take the risk of making the operation less attractive.
    The evaporation of water being particularly greedy in calories, it is preferable that the injected water is as hot as possible: given the pressure in the cylinder, it could be more than 100 ° C, previously heated by the engine itself (special radiator high pressure).
    There is of course the use of demineralized water.
    Cold start of a diesel engine, such as cylinder walls load to cool the gases below the temperature of formation of nitrogen oxides, there is no need to inject water.

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