Patent XYZ-LOLZ-4500:
Thermosiphonic effect used to aid in the cooling of combustion engines.
Studies show, modern cars used in urban conditions are destinied to be moved not more than 4 - 6 miles on average. Under that conditions the engine oil wont heat up properly and wont work at peak efficiency to minimize friction between parts and therefore to minimize fuel consumption.
The thermosiphonic effect is a closed coolant circuit around the aggregate, consisting of a hot and a cold zone. The fluid heated up by the engine has a lower specific density due to the fact that its hot and the cold fluid, being cooled down in a fan-pipe system has a higher specific density. Therefore in a closed system the fluid starts to circulate on its own trieing to compensate for the differences in density.
This particular system to cool an engine needs a coolant pump only as an ancillary unit. The pump will stay switched off, after the engine is started and therefore the engine will heat up more rapidly. Pumps are constructed to cool the engine at peak efficiency at peak output but if the engine runs at partial load, the coolant pump does cool too much and prevents the engine from getting to a proper operating temperature.
The thermosiphonic effect will let the engine oil reach its operation temperature much quicker and therefore minimze fuel consumption, when the car is moved for only short distances. On longer distances the coolant pump will be switched on periodically to maintain a proper operating temperature but because its not always on, the energy it normally would consume will be preserved and fuel consumption will be reduced again.
Anyone wants to sponsor me for a prototype ? I think 5-10% of lower fuel consumption is possible