Location History:
- Lohr am Main, DE (1984)
- Lohr/Main, DE (1983 - 1988)
- Lohr, DE (1980 - 1998)
Company Filing History:
Years Active: 1980-1998
Title: The Innovative Contributions of Roland Ewald
Introduction
Roland Ewald is a notable inventor based in Lohr, Germany. He has made significant contributions to the field of hydraulic systems, holding a total of 5 patents. His work focuses on enhancing the efficiency and control of hydraulic drives and actuators.
Latest Patents
One of Ewald's latest patents is a control for hydraulic drives or actuators. This invention provides a method for applying pressurized operating fluid to an actuator through an electrically controlled valve. The valve establishes the amount of fluid fed to the actuator based on an electrical signal from a computing device. This device continuously calculates a predetermined desired value for the actuator's position, force, or pressure, ensuring that the computing speed surpasses the valve's actuating velocity.
Another significant patent is an apparatus for controlling a hydromotor. This invention features a compensating valve arrangement that connects to a throttling direction control valve. It includes a pressure reducing valve, check valves, and throttling points to manage fluid flow from a pressure source to a load. This design compensates for surges, prevents sudden load driving, and minimizes leakage.
Career Highlights
Ewald has worked with prominent companies in the industry, including G. L. Rexroth GmbH and Mannesmann Rexroth Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in hydraulic technology.
Collaborations
Throughout his career, Ewald has collaborated with talented individuals such as Andreas Grimm and Wolfgang Lukasczyk. These partnerships have contributed to the advancement of his projects and inventions.
Conclusion
Roland Ewald's contributions to hydraulic technology through his patents and collaborations highlight his innovative spirit and dedication to improving engineering solutions. His work continues to influence the field and inspire future advancements.