Using the engine as a load-bearing part of the bike frame is absolutely nothing brand-new. BMW has actually submitted a patent application that goes one action even more. Rather of a basic frame around the engine, BMW proposes a half frame that connects straight to the engine block and utilizes it as the primary structure. The patent illustrations plainly reveal that the style is not just lighter, however likewise more complicated than the basic frame style.
New! 2024 BMW R12 nineT
A redefinition of frame structure
Unlike standard styles where a steel or aluminum structure around the engine links the guiding head to the swingarm bearing, BMW’s brand-new principle includes a basic, stiff front end that is connected straight to the engine block. This supplies a direct connection to the steering head and permits the swingarm to turn straight on the transmission. Here the engine is utilized as the primary structure. This style resembles Ducati’s Panigale designs, where the block likewise works as the primary structure. BMW goes an action even more by utilizing cylinder head bolts to protect the frame to the engine.
BMW style
The benefits of this style are apparent: by linking the cylinders straight to the half frame, the forces are moved in a straight line from one side of the motorbike to the other. This not just lowers the variety of parts and the weight of the bike, however likewise decreases the width– a common weak point of motorbikes with inline transverse engines.
Consider lowering the width
Until now, V-twins and V-fours have actually blazed a trail commonly, which has actually led to aerodynamic benefits, to name a few things. BMW’s style can integrate the very best of both worlds and permit a slimmer engine with a lower expense of internal combustion engine.
Three or 4 cylinder engines in front
BMW’s patent likewise recommends the brand-new frame style might be created around 3 or 4 cylinders. BMW currently has a variety of four-cylinder engines, like the one in the S 1000 RR, the three-cylinder will be slimmer. While there have actually been three-cylinder BMWs in the past, such as the K75, it’s been years given that there was a three-cylinder in a BMW engine lineup.
Preliminary tests of 3 cylinders
BMW has actually try out three-cylinder engines in current times. Among the most popular is the MotoGP task that was stopped in the early 2000 s, where BMW utilized the 3000 cc V-10 from Formula 1 as a base. The 3 cylinders of this engine were extremely near to MotoGP’s 990 cc capability limitation, so BMW went that method. The bike was constructed and checked, the task was ultimately deserted.
Rumors and rumours
Since then, reports about BMW’s three-cylinder port engine have actually continued. Reports continue to emerge on the Internet that a smaller sized maker– maybe the S 675 RR– is being established, without enough proof. This patent, with its particular reference of a three-cylinder engine, might be the very first indicator that such a bike is being thought about.
But it’s frequently a long roadway from submitting a patent to bringing an item to market. And there is likewise no warranty that the patent will cause mass production. If and when we’ll see a three-cylinder BMW on the roadway stays to be seen.
.
