Harley-Davidson appears to be working on forced induction of its future V-Twin engines, as its latest patent applications show. Patent applications show a supercharged engine with a belt-driven supercharger located directly above the gearbox and directly behind the rear drum of the v-twin engine. The supercharger is driven by a crank belt. When air enters the intake system through the filter, the supercharger driven by the reel compresses the incoming air before it is delivered to the combustion chamber through the intake manifold. But there is also a belt tension self-tensioning system, which uses a small spring to automatically adjust the belt tension.
The text in the patent filing describes it as a “disclosure relates to the mounting of a supercharger on an internal combustion engine.” The filing also goes on to state that “before any embodiments of the disclosure are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The disclosure is capable of other embodiments and of being practiced or of being carried out in various ways.”
So what does fine print mean? And what does Harley-Davidson plan to do with patenting the supercharged V-twin engine? One line of thought is that the system could be used to help the brand’s future V-Twin engines meet stringent emissions regulations for years to come. The other line of thinking is that while supercharging an engine can help make it cleaner, it can also make it the ideal part of after-sales service, which can provide customers with a proven solution to get better performance from their engines.