Location History:
- Aalen, DE (1996 - 1999)
- Böbingen a.d. Rems, DE (2003)
- Böbingen, DE (2003)
- Boebingen, DE (2004 - 2009)
Company Filing History:
7 out of 2,614 
4 out of 1,777 
1 out of 2,047 Years Active: 1996-2025
Title: **Alois Raab: Innovator in Internal Combustion Engine Technology**
Introduction
Alois Raab, an accomplished inventor based in Boebingen, Germany, has made significant strides in the field of internal combustion engines. With a remarkable portfolio of 13 patents, Raab's work focuses on enhancing the efficiency and functionality of modern engine systems. His innovative approaches have positioned him as a notable figure in automotive technology.
Latest Patents
Raab's latest patents demonstrate his expertise in compression ignition internal combustion engines. One of his significant inventions details a method for operating an internal combustion engine, which includes injecting fuel directly into the combustion chamber. This system utilizes a main injection, as well as postinjection and optional preinjection methods. The design incorporates an injection nozzle with multiple injection bores to effectively carry out these processes cyclically. To minimize the wetting of combustion chamber walls, Raab's innovations set specific parameters for the postinjection, ensuring that the reach of the fuel jets remains less than the distance to any combustion chamber boundary.
Another notable invention by Raab pertains to a fuel injection device featuring an injection nozzle equipped with a nozzle needle and various injection bores. This technology allows for flexible fuel injection into the combustion space as main injection, postinjection, and preinjection processes. The arrangement includes multiple rows of holes that can be activated separately, with the control unit adjusting the nozzle needle's operating stroke based on the piston position and engine operating point. The differing angles of the injection-hole cones further enhance performance.
Career Highlights
Alois Raab has contributed his expertise to prominent automotive companies, including Daimler Chrysler AG and Daimler-Benz AG. His work at these organizations allowed him to push the boundaries of internal combustion engine technologies, driving advances that have significantly impacted vehicle performance and fuel efficiency.
Collaborations
Throughout his career, Raab has collaborated with fellow engineers and inventors, including Friedrich Wirbeleit and Martin Schnabel. Together, they have shared knowledge and insights that have fostered innovation within the industry, contributing to the development of cutting-edge technologies in internal combustion engines.
Conclusion
Alois Raab's inventive spirit and technical prowess have solidified his reputation as an innovator in the automotive sector. With his extensive patent portfolio and contributions to engine technology, Raab continues to influence the landscape of internal combustion engines, paving the way for more efficient and environmentally friendly solutions in the automotive industry.