A model of the valve train of what is expected to be the world’s most fuel efficient internal combustion engine – the Scuderi Air-Hybrid Engine – was on display at the Engine Expo in Stuttgart, Germany, in May this year.
Automotive Industries (AI) caught up with Sal Scuderi (SS), president of the Scuderi Group.
AI: Tell us more about the Scuderi Split-Cycle engine.
SS: This engine is expected to provide significant improvements in the area of power, efficiency, and environmental protection. The results of state-of-the-art modeling and testing indicate, amongst others, that the fuel efficiency is 25 to 50% higher than in today’s conventional engines, and that nitrous emissions are up to 80% less than that of today’s gasoline and diesel engines. Through the addition of a compressed air storage tank and some controls, the Scuderi Engine can recover the energy that is normally lost when a vehicle is decelerated. To apply this principle in an electric-hybrid vehicle, a complex electrical system is needed that costs thousands of dollars and consists of generators, motors, and batteries.
AI: This is the first time an actual model of the Scuderi engine was available for public viewing. How was the response at the Scuderi booth at the Engine Expo?
SS: It has gone very well. Our booth was situated right next to the Open Technology Forum so we had a lot of visibility and traffic coming through the exhibit. As usual, many of the major OEMs from Europe and India visited us, many of them twice as they often come back with colleagues after digging deeper into the technology. The highlight this year was the plastic model of the valve train assembly. It has drawn the most attention and has given us an opportunity to present the engine’s concept in a form that visitors can see and touch.
AI: Scuderi has an independent laboratory that is testing and building the engine’s proof-of-concept prototype expected to be completed by the end of the year. What milestones have been reached by the Scuderi engineering team?
SS: Measured results from valve train test rig tests exceeded expectations and have had a nearly perfect match to earlier computer predictions of the engine.
There has been great anticipation around the development of our engine and showing this model to the European engineering community attending Engine Expo gave them a new opportunity to see the breakthroughs we have been realizing since our European debut there two years ago. The newly developed valve train test rig was designed to fully actuate, test and measure all performance criteria of the Scuderi Engine’s crossover valve train sub-assembly. The crossover valve train is one of the most critical portions of the Scuderi Engine since it must actuate at greater than Formula 1 speeds.
AI: Tell us more about your laboratory studies.
SS: In January, the Scuderi Group announced the completion of the laboratory study addressing the Scuderi Engine under full load conditions.
It focused on the characteristic of a single-stage, turbocharged Scuderi Split-Cycle Engine under full load conditions, predicted that the engine will have higher power, torque and efficiency ratings than the current state-of-the-art turbocharged engines on the road today. It also showed that not only did it achieve higher efficiency than the best gasoline engines on the market, but it also showed that the Scuderi gasoline engine also has a higher torque than most of the conventional diesel engines in use today.
For more information visit www.scuderigroup.com, or participate in the discussion at www.airhybridblog.com