Stefan Lueer

Title: The Innovative Contributions of Stefan Lueer

Introduction

Stefan Lueer is a notable inventor based in Langenfeld, Germany. He has made significant contributions to the field of engineering, particularly in the development of piston rings. His innovative approach has led to the creation of a patented technology that enhances the performance and durability of piston rings.

Latest Patents

Stefan Lueer holds a patent for a "Piston ring with hard chromium layer and improved running-in behaviour." This invention features a piston ring that includes a base body with an inner circumferential surface, first and second flank surfaces, and an outer circumferential surface. A first hard chromium layer with a crack network is applied to the outer circumferential surface, exhibiting a crack density of 10-250 cracks per mm. Additionally, solid particles with an average size of 0.01-10 μm are embedded in the cracks of the first hard chromium layer. A second hard chromium layer, also with a crack network, is applied to the first layer, having a crack density of 10-250 cracks per mm, but without solid particles embedded in its cracks. The cracks in this layer have an average width of 1-15 μm and are electrolytically expanded, with a surface proportion of cracks ranging from 3-25% based on the total surface of the second hard chromium layer. This innovative design significantly improves the running-in behaviour of piston rings.

Career Highlights

Stefan Lueer is currently employed at Federal-Mogul Burscheid GmbH, where he continues to work on advancements in automotive components. His expertise in materials and engineering has positioned him as a valuable asset to the company.

Collaborations

Throughout his career, Stefan has collaborated with talented colleagues, including Peter Schmidt and Sabine Balke. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Stefan Lueer's contributions to the field of engineering, particularly through his patented piston ring technology, demonstrate his commitment to innovation and excellence. His work continues to impact the automotive industry positively.