Rafael Antonio Bruno

Title: Rafael Antonio Bruno: Innovator in Piston Ring Technology

Introduction

Rafael Antonio Bruno is a notable inventor based in Sao Paulo, Brazil. He has made significant contributions to the field of piston ring technology, holding a total of four patents. His innovative designs and engineering solutions have garnered attention in the automotive industry.

Latest Patents

One of Rafael's latest patents involves a piston ring that may include a spacer or expansion element and/or two segments. The segments are designed with a radial dimension between approximately 1.50 mm and 1.90 mm and a height between approximately 0.30 mm and 0.40 mm. They feature a concave profile with recesses ranging from approximately 0.015 mm to 0.030 mm and a clearance of approximately 0.150 mm. The segments are wound using a matrix box device and a roller, ensuring precision in manufacturing. Additionally, the piston ring may exhibit a circularity, expressed as a decomposition in the form of a Fourier series, with an amplitude for orders higher than 10 not exceeding 0.10 μm.

Another patent focuses on a piston ring that has a base with a sliding external surface, an internal surface, an upper surface, and a lower surface, with the external surface featuring chamfered edges. The surfaces are coated with a nitrided first layer, with thickness specifications tailored for optimal performance. The external surface and chamfered edges may also include a sliding layer made of hard chromium or ceramic chromium plating, enhancing durability and functionality.

Career Highlights

Rafael has worked with prominent companies in the automotive sector, including Mahle International GmbH and Mahle Metal Leve S/A. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in piston ring development.

Collaborations

Throughout his career, Rafael has collaborated with talented individuals such as Bruno Fineto and Rafael Bettini Rabello. These partnerships have fostered a creative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Rafael Antonio Bruno is a distinguished inventor whose work in piston ring technology has made a significant impact in the automotive industry. His innovative patents and collaborations highlight his commitment to advancing engineering solutions.