Marine
Large Slow-Speed 2-Stroke Diesel Engine
Conventional large marine engines, primarily 2-stroke designs, achieve a high thermal efficiency of around 48%, largely due to their ability to handle large air volumes. However, a major limitation is that the 2-stroke cycle cannot simulate the Atkinson cycle in its operation, which could further boost thermal efficiency.
The Dynamic Flow engine addresses this by combining the high gas flow rates of a 2-stroke engine with the longer gas flow duration of a 4-stroke engine. This allows it to simulate the Atkinson cycle within its diesel engine operation, achieving thermal efficiencies in the range of 60% to 75%.
Another advantage of the Dynamic Flow engine is its infinitely variable exhaust gas recirculation (EGR) system. While conventional diesel engines operate in a “lean mode” at partial load to conserve fuel, this results in increased nitrogen oxide emissions, a harmful greenhouse gas. The Dynamic Flow engine’s EGR system allows it to maintain the ideal stoichiometric air-fuel ratio, even at partial load, with lower fuel injection. This significantly reduces nitrogen oxide emissions, promoting cleaner operation and a more sustainable future for maritime transport.
In summary, the Dynamic Flow engine presents a pathway for combustion engines to achieve their maximum theoretical thermal efficiency. It offers a promising alternative for large 2-stroke marine engine applications, delivering impressive efficiency while reducing environmental impact.
Marine
Medium-Speed 4-Stroke Diesel Engine
The current generation of large, medium-speed marine engines, primarily 4-stroke designs, operates with a thermal efficiency of around 42%. However, the conventional valve configuration in these diesel engines prevents the use of early intake valve closing (EIVC) to simulate the Atkinson cycle. In 4-stroke diesel engines, the Atkinson cycle can only be simulated through late intake valve closing (LIVC), which results in significant pumping losses and offers only marginal efficiency improvements. Moreover, LIVC hinders the effective use of turbochargers in diesel engines, leading to large reduction in engine performance.
Dynamic Flow engines unlock greater efficiency potential. They provide much higher airflow rates compared to conventional 4-stroke engines and can effectively simulate the Atkinson cycle using EIVC. This enables them to achieve thermal efficiencies in the range of 60% to 75%, leading to a potential 30% reduction in fuel consumption and carbon dioxide emissions for medium-speed marine engines.
In addition to higher efficiency, Dynamic Flow engines promote cleaner operation. They eliminate the need for lean burn strategies by using an infinitely variable EGR system, which allows the engine to operate at the ideal stoichiometric air-fuel ratio even at partial load. This not only optimizes fuel use but also significantly reduces nitrogen oxide (NOx) emissions, supporting cleaner and more sustainable maritime transport.
Road
High-speed 4-Stroke Diesel Engine
Dynamic Flow engines hold immense potential for the high-speed diesel truck sector for several reasons.
Firstly, they offer soaring efficiency. These engines boast a significantly higher thermal efficiency compared to current designs, with projections indicating a 22% thermal efficiency improvement. This translates to a dramatic 36.66% reduction in both operational fuel consumption and carbon dioxide emissions for high-speed diesel trucks. This amounts to a reduction of 157.41 million metric tons of carbon dioxide and 15.47 billion gallons of gasoline equivalent annually in the U.S.
Secondly, they ensure cleaner operation by design. Dynamic Flow engines eliminate the need for the polluting “lean burn” operation used by conventional diesel engines at partial load. This is achieved through Dynamic Flow’s internal infinitely variable EGR system allows its diesel engines to operate at the ideal stoichiometric air-fuel ratio with lower fuel injection strategy when under various partial load. By operating at the ideal stoichiometric air-fuel ratio, Dynamic Flow engines ensure cleaner operation across all load conditions.
Road
High-speed 4-stroke Gasoline Engine
Dynamic Flow engines are a breath of fresh air for gasoline vehicles. Their revolutionary design significantly boosts airflow—50% intake and 135% exhaust—leading to a 35% improvement in thermal efficiency. This translates to a dramatic 58.33% reduction in both CO2 emissions and fuel consumption. On a national scale, that’s potentially 586.54 million metric tons of CO2 and 66.15 billion gallons of gasoline saved annually in the US alone.
Beyond environmental benefits, Dynamic Flow offers a broader powerband across the RPM range. Drivers experience smoother acceleration from a stop and exhilarating high-RPM performance.
Dynamic Flow simulated variable displacement feature allows the engine to optimize fuel usage at all loads while maintaining the ideal air-fuel ratio for cleaner emissions.
Dynamic Flow engines represent a paradigm shift for gasoline powertrains, offering a compelling combination of environmental responsibility, exhilarating performance, and efficient fuel usage. This innovation paves the way for a cleaner and more exciting future for cars and trucks.
Road
High-speed 2-stroke Gasoline Engine
Motorcycles occupy a unique space in the transportation landscape. Their compact size presents challenges for conventional emission control methods like external EGR systems. Additionally, the pursuit of high power density and compactness often leads to the use of 2-stroke engines, which can be significant polluters.
Dynamic Flow engine technology offers a revolutionary solution for motorcycles.
Firstly, these engines achieve soaring efficiency, boasting a projected thermal efficiencies in the range of 60% to 75%, a massive leap from the typical 17% seen in current motorcycles. This results in a real-world reduction in fuel consumption and CO2 emissions by a staggering 71.66%.
Secondly, the high airflow capability of Dynamic Flow engines provides power at lower RPMs, eliminating the need for motorcycles to rev excessively for power. This translates to smoother, more manageable operation at lower RPMs, leading to reduced engine wear and tear and a longer lifespan.
Dynamic Flow engines also ensure cleaner operation by design. Their internal infinitely variable EGR system, unlike bulky external systems, is compact and specifically designed for motorcycles. This allows for precise control of emissions, significantly reducing pollution compared to conventional engines.
Additionally, the broader powerband of Dynamic Flow engines ensures improved low-mid range power, providing ample power throughout the low and mid-RPM range, crucial for smooth city riding and maneuvering. Motorcycles can be significant polluters, emitting ten times more than passenger cars. By implementing Dynamic Flow engine technologies, we can dramatically improve overall motorcycle and motorbike emissions, leading to a cleaner global environment.
Furthermore, motorbikes are a vital form of daily transportation and economic mobility in developing countries. Dynamic Flow engine technology offers a pathway toward a cleaner and more sustainable transportation ecosystem, benefiting both the environment and economies worldwide.