Now major manufacturers have launched streetcars with more than 200 horsepower, and the competition for super streetcars is becoming more and more fierce. They are not only the wings of aerodynamic design, but also the competition in horsepower is more cruel. The traditional natural inhalation seems to be unable to meet the current demand, so many manufacturers have turned their attention to the supercharged intake system.
Yamaha has also been developing a turbocharged three-cylinder proTurbotype, which may be the next generation motorcycle to meet future emission regulations. In addition to the patent application submitted, Yamaha also showed photos of the prototype at a technical conference (above). The prototype adopts MT- 10 chassis, rear rocker arm, suspension, wheels and brakes, fuel tank and seat, etc. Although the prototype is about 20kg heavier than the 230kg MT- 10, the torque is increased by more than 50%, the peak power is increased by 12.5%, and the performance is higher.
Turbocharging technology has long been popular in automobiles, and it is a technology that has been eagerly awaited in the motorcycle field. Through the application of turbocharging technology, Yamaha has achieved a great leap in performance and greatly reduced emissions. Compared with traditional non-turbine engines with similar power or torque level, CO2 emissions are reduced by about 30%, while the emissions of carbon monoxide, nitrogen oxides, hydrocarbons and particulate matter are far less than half of the latest Euro 5 emission standards. Therefore, in the future Euro 6 era, turbocharging technology may be the next focus of major manufacturers.
In the exposed registered patent, Yamaha seems to combine the CP3 engine (with three exhaust manifolds in some designs) with the "forced air intake" system commonly known as supercharger. In this case, the exhaust gas in the exhaust system (78) drives the turbine to rotate (No.8 1), which is contrary to the supercharger using an electric motor in the air intake system of the air cleaner.
The turbine in the turbine engine system will inhale (inhale) high-pressure air, make it compressed (dense, solid) and enrich oxygen, and then introduce it into the combustion chamber. Oxygen-enriched air will increase the explosion of the combustion chamber, resulting in more power (torque).
It can be seen that Yamaha has shown an "intercooler" (90) in its design, which is actually a necessary part of turbocharged engines. At present, the only supercharged motorcycle on the market is Kawasaki H2 series, and Kawasaki adopts the supercharged form. If Yamaha puts turbocharged engines into mass production, it will definitely rewrite the current industry pattern.
The following figure shows that the air inhaled and tried to be compressed by the turbine is obtained from the left shroud side (42) of the motor, and there is a pre-filtering device to prevent small impurities from entering the turbocharger system.
Yamaha's patent has brought its super streetcar closer and closer. Although the patent has been applied and taken effect, can the turbocharged engine be mass-produced smoothly? Yamaha tried to optimize many existing engines to meet the increasingly stringent European emission regulations. But it is still not as good as the current rivals with horsepower over 200, and the turbine engine may be the ultimate weapon of Yamaha.
Not only Yamaha, but also Suzuki are quietly developing turbocharged engines, and Honda has also applied for a patent for a non-twin-engine turbocharged version. Kawasaki has formed its own supercharged series, so Yamaha's move is not groundless. In the foreseeable Euro-6 era, the emission standards will be more stringent, which will be the era of turbocharging technology.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.