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This fact have caused a variety of concepts of internally cooled insulated engines. To our knowledge, no such concepts have reached any kind of mass market, probably due to mechanical and lubrication difficulties with the high temperatures.
The Free Valve Technology open new possibilities to realize old dreams: Combustion cycles can be alternated with cycles where water is injected into the combustion chamber generating steam on the hot surfaces. This steam generation will increase cylinder pressure which can be converted to mechanical work through normal gas expansion, contributing to the engine output without added fuel input. |
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Internal cooling
Cooling losses is a main reasons for the low efficiency of the combustion engines, typically consuming 20-30% of the energy released in the combustion.
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