The brand new v-twin engine from Harley-Davidson makes use of variable valve timing (VVT) and a modular engine balancer.
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Harley-Davidson has filed patents for a brand new v-twin engine with VVT
Harley-Davidson could also be preparing for its future fashions with new expertise. And this time, it is for a brand new v-twin engine which can use variable valve timing (VVT), in addition to a modular engine balancer. Newest patent pictures present how that the brand new v-twin engine can be totally different from present Harley-Davidson engines, and the way the VVT system works in tandem with the modular balancer. The brand new v-twin will seemingly supply increased revs and extra refinement, together with extra efficiency and higher emissions, to fulfill the newest rules. Whereas Harley-Davidson could have been within the information currently for all of the fallacious causes, the newest information is proof sufficient that there is greater than a brand new engine brewing for the longer term.
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An exploded view reveals the engine stability module in addition to the variable valve timing system
The brand new engine nonetheless makes use of overhead valves, however with pushrods working on reverse sides of every cylinder. The drawings additionally present air-cooling fins, with uneven contours curving out and in at totally different spots across the cylinder. The engine additionally has an oil cooler on the entrance, one thing which signifies that Harley-Davidson will stick with an air/oil-cooled format for the brand new v-twin, in comparison with the DOHC, liquid-cooled engines that are anticipated to debut on new fashions, together with the Harley-Davidson Pan America and the Streetfighter. The brand new v-twin with the overhead valve system is anticipated to say increased engine speeds than the present Milwaukee-Eight.
Additionally Learn: Harley-Davidson Working On New Pushrod Engine
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Diagrams filed with the patent present the engine stability module the place the crankshaft is linked to a gear (No. 154 within the determine above), which rotates a cam gear (No. 158). The cam gear is linked to a second, smaller toothed gear (No. 170) which rotates a series (No. 178). The chain in flip spins a balancer sprocket which rotates a stability weight (No. 86) across the crankshaft in the wrong way of the crank’s rotation. The VVT unit (No 98) adjusts the timing of the cams, affecting when the consumption and exhaust valves open and shut, in relation to the crankshaft. The thought isn’t just to optimise energy and torque supply, but additionally to scale back emissions, to fulfill the newest and probably, future rules. To this point, there is not any phrase on when the brand new v-twin engine can be launched in manufacturing kind, or what fashions it’ll energy.
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