Stefan Renfftlen

Title: Inventor Stefan Renfftlen: Pioneering Innovations in Exhaust Gas Aftertreatment

Introduction

Stefan Renfftlen, an accomplished inventor based in Eislingen, Germany, has made significant contributions to the field of automotive and environmental engineering. With a total of eight patents to his name, his work focuses primarily on exhaust gas aftertreatment technologies, which play a crucial role in meeting environmental standards and enhancing engine performance.

Latest Patents

Among his notable inventions, Renfftlen's latest patent concerns an innovative exhaust gas aftertreatment installation and method. This technology utilizes a nitrogen oxide storage catalytic converter along with a selective catalytic reduction (SCR) catalytic converter. A particulate filter is strategically placed either upstream of the nitrogen oxide storage catalytic converter, between the two converters, or downstream of the SCR catalytic converter. This arrangement allows for the regeneration operating phases of the nitrogen oxide storage catalytic converter to be determined based on the nitrogen oxide content of the exhaust gas or the ammonia loading in the SCR catalytic converter. Furthermore, it enables the calculation of the desired ammonia generation quantity during each regeneration phase. This installation and method are specifically designed for motor vehicle internal combustion engines and other engines predominantly operated in lean-burn mode.

Career Highlights

Renfftlen has built a robust career, having worked with renowned companies such as DaimlerChrysler AG and Daimler AG. His experiences in these prestigious organizations allowed him to refine his expertise and push the boundaries of existing technologies to create more efficient and environmentally-friendly solutions.

Collaborations

Throughout his career, Stefan has collaborated with notable professionals like Bernd Krutzsch and Michel Weibel. These collaborations have contributed to the successful development and patenting of innovative solutions in the automotive technology sector.

Conclusion

Stefan Renfftlen is a prominent inventor whose work in exhaust gas aftertreatment technology exemplifies the blend of environmental responsibility and engineering excellence. With a commitment to innovation, he continues to make strides in improving the efficiency and effectiveness of internal combustion engines, significantly impacting the automotive industry and environmental efforts.