Location History:
- Lohr-Sendelbach, DE (1987)
- Lohr/Main, DE (1987 - 1988)
- Lohr, DE (1987 - 1989)
Company Filing History:
Years Active: 1987-1989
Title: Norbert Kreth: Innovator in Hydraulic Control Systems
Introduction
Norbert Kreth is a distinguished inventor based in Lohr/Main, Germany. He has made significant contributions to the field of hydraulic control systems, holding a total of six patents. His innovative designs have advanced the efficiency and functionality of hydraulic systems in various applications.
Latest Patents
Kreth's latest patents include a control arrangement for at least two hydraulic consumers fed by a delivery pump. This invention addresses the issue of inadequate power from the delivery pump by reducing the flow rate set at the directional control valves in equal proportions. Electrical signals proportional to the flow rates are supplied to a summation stage, where the sum voltage is compared to a limit value corresponding to the maximum pump delivery flow. When this limit is exceeded, a control signal is generated to jointly reduce the stroke of all driven directional control valves. Another notable patent involves a control arrangement for multiple hydraulic loads fed by a single pump. This design ensures proportional quantity reduction at all loads when pump power is insufficient, enhancing the overall performance of hydraulic systems.
Career Highlights
Norbert Kreth is currently associated with Mannesmann Rexroth Corporation, a leading company in the field of drive and control technologies. His work has been instrumental in developing advanced hydraulic solutions that cater to various industrial needs.
Collaborations
Throughout his career, Kreth has collaborated with notable colleagues, including Armin Stellwagen and Peter Buttner. These partnerships have fostered innovation and contributed to the successful development of his patented technologies.
Conclusion
Norbert Kreth's contributions to hydraulic control systems exemplify his commitment to innovation and excellence in engineering. His patents reflect a deep understanding of hydraulic mechanics and a dedication to improving system efficiency.