By using the heat from exhaust
gas which would normally be diverted through the exhaust pipes and wasted, the
company’s technology reduces engine warm-up time, enhances efficiency and
significantly improves fuel economy and reduces emissions. This cost-effective
solution offers compact packaging, low weight and can easily be integrated into
existing vehicles.
“Until a cold engine reaches
its optimal operating temperature, it is much less fuel efficient and generates
higher emissions, which is one of the challenges to master for upcoming
emissions regulations. Our EHRS minimizes engine heat up time, helping
automakers around the globe meet new and more stringent regulations,” said Joe Fadool,
President and General Manager, BorgWarner Emissions & Thermal Systems.
“With the EHRS, BorgWarner
serves the growing demand for highly efficient solutions to reduce emissions
and strengthens its position as a leading supplier of clean technologies,” he
added.
Combining an exhaust gas
recirculation (EGR) system with a waste heat recovery system (WHRS), BorgWarner
leverages its vast experience in heat transfer and exhaust gas aftertatment
technologies, such as EGR coolers and valves, enabling the company to offer a
superior solution. The EHRS reduces mechanical losses by using the energy
conserved within the exhaust gas.
During engine cold starts, a
valve controls the exhaust gas flow, routing it through a heat exchanger, where
the thermal energy of the gas heats up the vehicle’s subsystem fluids. As a
result, the engine warms up faster, reducing emissions and improving fuel
efficiency. BorgWarner’s low-pressure EGR valve precisely controls the
temperatures in the combustion chamber, improving engine efficiency and
combustion timing. In addition, the technology reduces carbon monoxide (CO) and
nitrogen oxide (NOx) emissions as well as particulate matter (PM).