Company Filing History:
6 out of 41 
3 out of 111 
1 out of 177 
Years Active: 1984-1991
Title: The Innovations of Hans J Drewitz
Introduction
Hans J Drewitz is a distinguished inventor based in Munich, Germany, known for his groundbreaking contributions to the field of transmission technologies. With a total of twelve patents to his name, Drewitz has made significant advancements that enhance the efficiency and performance of mechanical systems.
Latest Patents
Two of his latest patents exemplify his innovative approach to engineering. The first is a **stepless hydrostatic-mechanical transmission**, which integrates an epicyclic differential to optimize power transmission between a prime mover and a power output train. This design incorporates at least four shafts and facilitates seamless operation by allowing hydrostatic machines to operate alternately as pumps and motors, enhancing functionality during various working ranges.
His second notable patent is a **starter system for automatically turning off and restarting a motor**. This innovative hydrostatic starting system eliminates the need for a traditional electric starter motor in vehicles. Instead, it employs a hydraulic accumulator capable of starting the engine and incorporates a responsive controller to manage the vehicle's operational states, offering a modern solution to motor vehicle efficiency.
Career Highlights
Throughout his career, Drewitz has worked with several prominent companies, including Man Nutzfahrzeuge GmbH and M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, where he has contributed to the advancement of mechanical engineering. His extensive knowledge and experience have positioned him as a key figure in the realm of hydrostatic transmission systems.
Collaborations
Hans has collaborated with talented individuals such as Faust Hagin and Stefan Martini, further enriching his projects with diverse insights and expertise. Their teamwork has led to the successful development of cutting-edge inventions that push the boundaries of existing technology.
Conclusion
Hans J Drewitz stands out as an influential inventor whose patents reflect a deep understanding of mechanical systems. His contributions, particularly in the areas of hydrostatic transmission and motor efficiency, showcase his commitment to innovation and have paved the way for future advancements in engineering.