Shengjian Liu

Title: Innovations by Shengjian Liu in Electric Motor Technology

Introduction

Shengjian Liu is a notable inventor based in Suzhou, China. He has made significant contributions to the field of electric motor technology. His innovative work focuses on reducing electromagnetic interference (EMI) in electric motors, which is crucial for enhancing their performance and reliability.

Latest Patents

Shengjian Liu holds a patent for "Electric motors having EMI reducing circuits and methods therefor." This invention involves an electric motor equipped with a circuit designed to minimize electromagnetic interference. The motor features a field stack, including a stator and an armature with a shaft and commutator. The armature core is rotatably mounted within the field stack, and a brush assembly delivers electrical power to the commutator. The circuit includes a delta capacitor network and a conductive lead that connects the delta capacitor network to the brush assembly. In some embodiments, the circuit incorporates motor field windings or coils, along with a power source that connects to both the delta capacitor network and the motor field windings. This innovative design can be applied to universal motors, showcasing Liu's expertise in the field.

Career Highlights

Shengjian Liu is currently associated with Black Decker Inc., where he continues to develop and refine his inventions. His work has garnered attention for its practical applications in improving electric motor efficiency and reducing EMI.

Collaborations

Throughout his career, Liu has collaborated with talented individuals such as Jiangang Zhao and Paik Gu. These partnerships have contributed to the advancement of his projects and the successful implementation of innovative technologies.

Conclusion

Shengjian Liu's contributions to electric motor technology, particularly in reducing electromagnetic interference, highlight his role as a significant inventor in the field. His patent and ongoing work at Black Decker Inc. demonstrate his commitment to innovation and excellence in engineering.