( Our Engines )

The Evolution

If the revolution is the Scuderi Split-Cycle Engine firing ATDC, then the evolution is the designs that flow from this unique engine concept. 

Air-Hybrid Mode

Regenerative Braking

Cruising Mode

High-Efficiency Mode

Turbocharged Mode

Turbocharged Split-Cycle Engine
(High Torque, High Speed, Enormous Power, Smaller Engines)

The next step in the development of the Scuderi Split-Cycle Engine is the turbocharged version. Because the crossover passage provides an opportunity to cool the intake air after it is compressed, the Scuderi Split-Cycle Engine has a very high resistance to pre-detonation (knock). This high resistance to knock potentially enables the Scuderi Split-Cycle Engine to boost or turbocharge to more than 2.5 bar absolute pressure. A conventional gasoline engine typically can boost to only 1.5 bar absolute before pre-detonation occurs.

The result is a significantly higher brake mean effective pressure (BMEP) and torque level. In fact, the torque level of the Scuderi Split-Cycle Engine matches or exceeds most turbocharged diesel engines. However, a Scuderi Split-Cycle Engine can potentially obtain rated speeds of up to 6000 rpm. The combination of diesel like torque levels matched with gasoline like speed levels would result in a power density higher than any conventional engine available today. The Scuderi Split-Cycle Turbocharged Engine has a potential power rating at 6000 rpm of up to 101 kW per liter.

The Scuderi Engine enables the industry to drastically downsize its engines (reducing fuel consumption and CO2 emissions) without compromising performance. 

Air-Hybrid Design

Because the Scuderi Engine is really a dedicated compressor on one side and an engine on the other, it simply requires the addition of an air storage tank and some controls to convert it into a hybrid system that can capture and store energy lost during the normal operation of the engine.

Since the turbocharged version of the Scuderi Engine operates at 130 bar, it will be able to store a significant amount of energy in its air tank. There are various engine control strategies that can be employed to improve the overall reduction in fuel consumption. This includes engine shutoff at idle, air-only driving, off-loading of the compression cylinder and regenerative braking.

The Scuderi Air-Hybrid provides a cost-effective hybrid solution that does not compromise performance.

Scuderi Split-Cycle Diesel Engine (Reduced Emissions)

One of the biggest benefits of the Scuderi Split-Cycle Engine for diesel applications is the reduction in emissions. The tougher emission standards that will begin in 2010 are causing the cost of diesel engines to dramatically increase while performance is being compromised.

The Scuderi Engine's combustion process of firing ATDC has an unusual effect of reducing both soot and NOx. This results from the combustion cylinder in the Scuderi Engine having a higher average temperature but at the same time a lower peak temperature than a conventional engine. The high average temperature, along with the high turbulence in the combustion process, is expected to reduce soot. However, lower peak temperatures resulting from combustion gases rapidly expanding when firing ATDC occurs, reduces NOx emissions by as much as 80 percent.

The Scuderi Split-Cycle Engine offers a unique opportunity to reduce emissions to the new levels without the need for costly after treatment systems.

Promise of the Scuderi Split-Cycle Engine

With the revolution of the Scuderi Split-Cycle Engine firing ATDC and its evolution into the various configurations of naturally aspirated, turbocharged, air-hybrid and diesel designs, the Scuderi Split-Cycle Engine Technology provides a simple but elegant solution to meet today's - and tomorrow's - engine demands for increased efficiency, improved power, downsizing and lower emissions.