New Digital Rotary Control Valve to Boost Fuel Economy, Reduce Emissions

Switching to digital can manage vital fluid systems in a sense that significantly enhances fuel economy, reduces engine and emissions, driveline wear to help extend the life span of fluids vital in the operation of engine parts.

When you think of the complex systems in a vehicle today, it comes as a surprise that we still use analog systems to control the interaction of the engine with the radiator system said Hollis, manager of Advanced Research Inc MileageMatrix, the component relies on DuPont™ Zytel® HTN PPA resins for the valve body, tube and diverter.

“After all, those fluids shield most significant operating systems are used by the vehicle running them too high or too low just and – the engine and driveline – wastes energy.”

The Digital Rotary Control Valve (DRCV) will supply a “true” powertrain thermal management system that, after mapping, will always allow the engine/transmission to operate at their “known” optimum operating temperatures, under all driving conditions. The computer-regulated system tracks temperatures at several under-hood locations and controls the single DRCV to maintain transmission temperatures and optimum engine, throughout all engine load conditions and extreme ambient temperature ranges.

It is nominated for an International Plastics Design Competition People’s Choice Award, that will be declared in the NPE in Chicago later this month.

The materials’ resistance to continuous exposure to hot long-life coolant up to 130°C, and retention of properties with wetness proved optimal for this application.

“ Because all surfaces are consistently ‘wet’ we’d to be very sensitive to growth and contraction and we wanted a ‘fluid bearing’ to prevent sticking,” said Hollis. “Zytel® HTN PPA performed well in these states, enabling us to take advantage of the lightweight nature of 3d printer plastic and total cost edge over alloys.”

Vital to the parts’ success is its ability to provide precision temperature function between radiator and engine/transmission. “Every BTU that leaves through the radiator, supplies ZERO heat energy value,” said Hollis.

Results from an initial, three-year evaluation program shows 8 percent cans improve during the winter, and Hollis said they expect year-round fuel economy improvements greater than 5 percent. The component is currently being tested to stringent OEM specifications.