| 摘要 |
N.E.V.I.S. stays for New Exhaust Valve and Intake System. This invention defines together with a new charge regulating system and a special valve for the function of the exhaust, several innovative elements that change completely the traditional alternative engine. Thanks to this new concepts, efficiency can be drastically improved, wile the dimensions, the weight and the power are comparable to wankel or to gasturbine and the expectations of the emissions and production cost are very interesting, wile the radically n ew architecture of the block allows to have the advantages of a complete modularity of the cylinders (every block can be associated to another one), the pistons are annular and are provided in the lower part of ball bearing that follow a convenient law of the movement caused by a cylinder surrounded by an undulated slot where the ball bearings are operatively inserted. The exhaust is timed and variable like the compression ratio; the cleaning phase happens via the inertia of the fluids in a vast rang of revolutions per minute, differently from Kadenacy system. The lubrication system is of the spraying kind, the cooling system is with circulation of liquid, the injecti on is direct for both the versions diesel or gasoline one. A transmission shaft can be inserted in the engine shaft, permitting to the engine an axial positioning between two tires, if the number of cylinders adopted is not excessive. It is possible to put on the same axis two, three, four or six cylinders, one after the other one, without having problems of balancing; th e number of maximum revolutions per minute is very low so to have a correct ratio with a propeller or an eventual tire it isn't neede any reducing gear between the transmission and the differential, because the number of cycles are three in one engine shaft revolution instead of half.
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