Andreas Hoelzel

Title: The Innovations of Andreas Hoelzel

Introduction

Andreas Hoelzel is a notable inventor based in Herrsching, Germany. He has made significant contributions to the field of gas turbine technology, holding 2 patents that showcase his innovative approach to engineering.

Latest Patents

One of his latest patents is an adjustable guide vane with a convexly shaped, radially inner storage section for a gas turbine, particularly for aircraft gas turbines. This invention describes a guide vane for a compressor, specifically a high-pressure compressor, which includes a radially outer bearing section, a radially inner bearing section, and a vane section extending radially between the two. The design allows the adjustable guide vane to rotate about a vane axis in the compressor, with the radially inner bearing section configured like a journal and featuring a convex lateral surface. This innovative design ensures that the radius of curvature of the convex lateral surface is at least double the maximum diameter of the bearing section.

Another significant patent by Hoelzel is for a turbomachine rotor disk. This rotor disk is connectable to at least one rotor blade and/or a shaft of the turbomachine. It features at least one borehole with an elliptical inlet opening and an elliptical outlet opening, where the outlet opening has a smaller passage cross-sectional area than the inlet opening. This design enhances the efficiency and performance of turbomachines.

Career Highlights

Throughout his career, Andreas Hoelzel has worked with prominent companies in the aerospace industry, including MTU Aero Engines AG and MTU Aero Engines GmbH. His experience in these organizations has allowed him to develop and refine his innovative ideas in gas turbine technology.

Collaborations

Hoelzel has collaborated with notable colleagues such as Christian Roth and Franz Prieschl, contributing to advancements in their respective fields.

Conclusion

Andreas Hoelzel's contributions to gas turbine technology through his patents and collaborations highlight his role as an influential inventor in the aerospace sector. His innovative designs continue to impact the efficiency and performance of modern turbomachines.