Location History:
- Saint-Yrueux, FR (2009)
- Saint Yrieix, FR (2010 - 2019)
Company Filing History:
Years Active: 2009-2019
Title: The Innovative Contributions of Jean-Marie Andrejak
Introduction
Jean-Marie Andrejak is a notable inventor based in Saint Yrieix, France. He has made significant contributions to the field of engineering, particularly in the area of hydrocarbon pumping and generator set regulation. With a total of six patents to his name, Andrejak's work reflects a commitment to innovation and efficiency in energy systems.
Latest Patents
Among his latest patents is an installation for pumping hydrocarbons. This invention includes a submerged pump in a well, driven by a motor linked to a variable frequency drive. The drive is powered by an external network during normal operation and features a rectifier supplying a DC bus, an inverter linked to the motor, and a controller. Notably, the installation incorporates an electricity storage element connected by a reversible DC-DC converter to the DC bus. This design ensures that the variable frequency drive can be supplied by the storage element in the event of an interruption to the external network supply.
Another significant patent is a method for regulating a generator set. This method involves regulating the injection of fuel into a heat engine of a generator set, which includes an alternator driven by the heat engine. The alternator is equipped with a voltage regulator, while the heat engine has a speed regulator that can receive an external speed setpoint. The method detects variations in torque and kinetic energy through electrical measurements on the alternator, allowing for adjustments to the voltage and speed regulators based on these variations.
Career Highlights
Jean-Marie Andrejak is currently employed at Moteurs Leroy-Somer, a company known for its expertise in electric motors and drive systems. His work at this company has allowed him to develop and refine his innovative ideas, contributing to advancements in energy efficiency and technology.
Collaborations
Throughout his career, Andrejak has collaborated with talented individuals such as Samuel Moser and Patrice Betge. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Jean-Marie Andrejak's contributions to the field of engineering through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the energy sector, showcasing the importance of innovation in addressing modern challenges.
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