This is a system that already has both Italian and international patents. The official press release explains that “it is a mechanical and forced control of the valves, both in opening and closing. Once the structural and material resistance tests are completed, we will move on to laboratory tests and then the engines will be installed in a company model for the necessary road tests. An ambitious project that will represent a fundamental step in product development and the growth of the iconic artisanal company founded in 1987.”
Umberto Borile’s statements to Moto.it reveal all the details.
“It took a gentleman from Spoleto, Dr. Massimo Fracassi, who is a well-known business consultant, to start over. The new company was born, called Marik (from the first letters of his wife Maura and my son Riccardo, whom we lost), and will produce and market Borile motorcycles. The prototypes will always be made here in Vo’. We are now working on the engine model to present at MBE.”
“This is a new distribution system for four-stroke engines, designed, manufactured, and patented by Borile. Basically, it is a mechanical and forced control of the valves, both in opening and closing. This system ensures lower consumption and higher performance due to its lightness and smoothness. Just remove the spark plug and operate it by hand to understand. It is more compact than any other system: our cylinder head measures about 7 centimeters less in height than any other head with the same displacement. There are no springs, oscillators, or chains, no sliding friction, no sliding of two surfaces. Here, the camshafts press on a ball bearing, which in turn is connected to a titanium rod, which raises and lowers two bars that carry the valves.”
There are many advantages, says Umberto Borile.
‘Other systems are based on a chain, which carries the movement from the crankshaft to the camshaft at the top end of the cylinder head. Now, sliding friction is created between the joints and links of this chain, even the tensioner that stretches it creates sliding friction, even the camshafts in desmo systems slide on the oscillator. And all this sliding requires a lot of oil to reduce the possibility of seizing and to dissipate the heat. Our system can also work without oil, which is an absolute novelty: only the bottom part with the gears needs lubrication, but the bottom part is affected by much less heat, also extending the lifespan of the oil. And, once again, all the rotating parts are in a low position, reducing the gyroscopic effect. All these are small things that, together, create a system that is both very simple and very effective. No valve adjustments and just a little oil vapor in the cylinder head’.
