Wirtschaft

Wankel im E-Auto: Kleines technisches Wunderwerk

Wankel engines have long been celebrated for their compact size, low weight, and high power-to-weight ratio. With the continuous advancement of electric vehicle (EV) technology, it was only a matter of time before the Wankel engine found its place in the world of electric cars. And now, this small technical marvel is making a big impact.

The Wankel engine, also known as a rotary engine, was invented by German engineer Felix Wankel in the 1950s. Unlike traditional piston engines, the Wankel engine features a rotor instead of a piston, which rotates inside an oval-shaped housing. The rotor’s motion creates the necessary air compression in the engine, resulting in combustion and thus power.

One of the biggest advantages of the Wankel engine is its size. It is significantly smaller and lighter than a traditional piston engine, making it perfect for use in compact electric vehicles. This reduced weight not only increases the overall efficiency of the vehicle but also allows for more compact design options and greater flexibility in the positioning of components.

Moreover, the Wankel engine’s compact size allows for improved weight distribution within the vehicle. Typically, electric car batteries are relatively heavy and often need to be placed in the lower parts of the vehicle to optimize stability and handling. The small size of the Wankel engine makes it easier to find an optimal position for the battery, improving the overall balance and driving dynamics of the electric car.

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In terms of efficiency, the Wankel engine is also a winner. Due to its unique design, it offers a higher power-to-weight ratio compared to traditional piston engines. This means that a smaller Wankel engine can produce the same amount of power as a larger piston engine, while weighing less. Consequently, Wankel engines used in electric vehicles can deliver impressive performance without compromising on energy efficiency.

Furthermore, the Wankel engine’s smooth and linear power delivery makes it a perfect match for electric vehicles. Electric cars are known for their instant torque and brisk acceleration, and the Wankel engine’s characteristics further enhance these qualities. The rotary engine’s smooth operation and high-revving capabilities provide electric vehicles with a responsive and enjoyable driving experience.

Another advantage of the Wankel engine in electric cars is its ability to act as a range extender. With an on-board Wankel engine, an electric car’s driving range can be substantially extended. As a result, drivers need not worry about running out of charge in the middle of a long journey, providing them with peace of mind and added convenience.

The implementation of Wankel engines in electric cars has not been without its challenges, however. One of the main obstacles is the engine’s relatively high fuel consumption, which is not ideal for a technology aimed at reducing dependence on fossil fuels. Nevertheless, ongoing research and development efforts, such as the exploration of alternative fuel options, are striving to overcome this limitation.

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In conclusion, the Wankel engine’s unique characteristics make it a remarkable choice for use in electric vehicles. Its small size, high power-to-weight ratio, and responsive performance contribute significantly to the overall efficiency and driving experience of electric cars. As advancements in technology continue, the Wankel engine is likely to play an increasingly prominent role in the world of electric mobility, proving itself to be a true technical marvel.

KLAGENFURT. Mazda en zijn wankelmotor – een lang verhaal met zijn hoogte en diepte. De verkochte Kreiskolbenmotor – siehe RX8 – viel beide Sprit. Sehr viel Sprit. Het is een goed idee dat de geniale ontdekking niet te ingewikkeld is. Maar die Japanners stoppen bij het Prinzip-festijn, ook in een andere Konstellation.

De MX-30 eSkyactive R-EV heeft een wankelmotor met 830 kubieke centimeter Hubraum maximaal 55 kW (75 pk). Dankzij de verschillende reinigingsmethoden die worden toegepast voor de gasafzuiging, katalysator en roetfilter is de Aggregaat met de Abgasnorm Euro 6d-ISC-FCM leverbaar. Er zijn tal van toepassingen voor uw eigen lokale motor.

Diegenes, durchdachtes Innenleben met waardevolle materialen
Afbeelding: Mazda

17,8 kWh-batterij

De wankelmotor werkt op geen enkele manier, maar wordt zonder generator en stroombron aangedreven door een lithium-ionbatterij met 17,8 kWh vermogen. Met energie geleverd door een elektromotor wordt 125 kW (170 pk) geleverd. Met 20 kW (27 pk) meer dan de MX-30 EV, de volledig elektrische variant.

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Hoe zit het met de Range Extender Prinzip? Gemakkelijk, zegt Mazda: De wankelmotor loopt soepel en produceert weinig trillingen. Ik werk hard aan de machine en werk hard. En laufe sparsam. De accu levert energie voor 85 kilometer, waarna de wankelmotor springt. Benzinetank van 50 liter. Gemeinsam mit dem Akku verraadt de Reichweite tot 680 kilometer, zegt Mazda. Freilich: Abzüglich der E-Reichweite von 85 Kilometer blieben 595 Kilometer met 50 Liter Sprit. Dat was 8,4 liter per 100 kilometer. Fazit: Heb je van je leven kunnen genieten en van de voordelen van je leven kunnen genieten – het klassieke Plug-in-Hybrid-systeem. Wobei die elektrische Reichweite durchau alltagstauglich ist. Wie gebruikt de stroomvoorziening: 11 kW (AC) bzw. 36 kW (gelijkstroom).

Auteur

Carsten Hebestreit

Motorredacteur

Carsten Hebestreit

Carsten Hebestreit

Ladt

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