Solving the riddle of an efficient, quiet and clean heat engine for electric vehicles
As the world gradually embraces electric vehicles (EVs) for a sustainable future, a critical challenge remains: increasing their range to meet the needs of long-distance commuting. The solution lies in the perfect combination of electric and internal combustion technologies. INNengine is convinced that the future of transportation belongs to those who manage to seamlessly merge the best of both worlds. After more than a decade of relentless research and development, his team presents the revolutionary e-Rex engine, the first single-stroke engine designed from the ground up for heat engine applications.
In search of the ideal heat engine
An efficient heat engine must have three essential qualities. First, it must be lightweight and compact to accommodate additional motors and batteries without compromising space or performance. Second, it must operate quietly and smoothly to maintain an enjoyable experience for passengers during power transitions. Last but not least, it must be highly efficient to significantly increase vehicle range while maintaining a clean and environmentally friendly profile.
The trade-off dilemma: two-stroke vs. four-stroke
Historically, car manufacturers have faced a difficult choice between two-stroke and four-stroke engine configurations. Two-stroke engines offer compactness and high power, but suffer from leaking unburned fuel and burning lubricating oil, leading to reduced efficiency and increased pollution. Four-stroke engines, while more efficient and cleaner, are larger and more complex, resulting in higher levels of noise and vibration – undesirable characteristics.
A revolutionary design: the e-Rex motor
The e-Rex engine marks a turning point in heat engine technology, challenging traditional classifications. Rather than being a two-stroke or four-stroke engine, it introduces an entirely new concept: single stroke engine. This engine design delivers one power stroke per cylinder with every turn, delivering unmatched power and efficiency.
The advantages of the single-stroke engine
The distinct single-stroke engine design has a host of advantages over its predecessors. First, it combines the compactness and high power of a two-stroke engine without the problems of fuel leakage and lube oil burning. Second, it achieves the efficiency and cleanliness of a four-stroke engine, significantly reducing NOx and CO2 emissions. In addition, the perfectly balanced mass of the e-Rex engine ensures smooth and vibration-free operation, offering a level of comfort never before seen in internal combustion engines.
The variable compression ratio: the revolution
At the heart of the e-Rex engine is its most revolutionary feature: variable compression ratio (TCV) system). Controlled in real time by the engine control unit (ECU), this technology allows the engine to adjust its compression ratio on demand. Low compression ratios provide extra power when needed, while higher compression ratios optimize efficiency during normal driving conditions. The result is a combustion engine that adapts to the needs of the vehicle with remarkable precision.
A compact powerhouse
The compact size of the e-Rex motor is really one of its strengths. With power equivalent to a state-of-the-art 2000cc four-stroke engine, this single-stroke wonder is less than 40 centimeters in length and weighs just 35 kilograms. Its lightness and efficiency make it the perfect complement to electric vehicles, improving their autonomy without compromising space or performance.
Zero vibration for unparalleled comfort
In addition to its size and efficiency advantages, the unique design of the e-Rex engine ensures a perfectly balanced mass at all times. This intrinsic balance means that the linear movement of the pistons does not require compensation, leading to zero vibrations. This feature guarantees a smooth and serene drive, exceeding the vibration levels of traditional engines and making the e-Rex engine the true combustion engine of choice.
The e-Rex engine represents a revolutionary advance in heat engine technology. By combining the best qualities of two-stroke, four-stroke and opposed-piston engines, it revolutionizes the concept of combustion engines for electric vehicles, paving the way for a cleaner and more sustainable future in transport. As the world moves towards a more environmentally friendly automotive landscape, the e-Rex engine is a testament to human ingenuity, proving that innovation knows no bounds to shape the future of transportation.
Yeah… yet another rehash of jumo 204. Not really revolutionary. But with nearly a century of technological advances on top of that, this project looks great... in a laboratory.