Xiankai Liu

Title: Innovations of Xiankai Liu in Maglev Train Technology

Introduction

Xiankai Liu is a prominent inventor based in Shandong, China, known for his contributions to maglev train technology. He holds a total of 3 patents that focus on enhancing the efficiency and functionality of linear motors used in maglev trains. His innovative designs aim to improve transportation systems and provide solutions for modern transit challenges.

Latest Patents

Among his latest patents, Liu has developed a linear motor specifically designed for maglev trains. This linear motor consists of a primary part and a secondary part that are positioned opposite each other, with an air gap reserved between them. The air gap features a first spacing in a non-operating state and a second spacing in an operating state. Notably, the primary part's side surface facing the secondary part is equipped with a magnetically conductive film that possesses elasticity in the thickness direction. This film is designed to be thicker than the first spacing but thinner than the second spacing. The film comprises magnetically conductive base bodies and non-magnetically conductive base bodies that are alternately distributed along its surface. The magnetically conductive base bodies are filled with magnetically conductive materials, effectively covering the magnetic poles on the primary part's side surface while the non-magnetically conductive base bodies shield the gaps between adjacent magnetic poles.

Additionally, Liu has developed a positioning system and method for maglev trains. This system includes an onboard magnet mounted at the bottom of the train, along with two grating arrays laid side by side on the train tracks in the direction of travel. The system features an optical pulse generation module and a data processing module. The data processing module is responsible for performing multiple stages of train positioning based on the drift conditions of the center wavelengths of the marking gratings, allowing for precise determination of the train's track positions.

Career Highlights

Xiankai Liu is currently employed at CRRC Qingdao Sifang Co., Ltd., a leading company in the field of rail transportation. His work at this company has allowed him to focus on innovative solutions for maglev technology, contributing to advancements in the industry.

Collaborations

Liu has collaborated with notable coworkers, including Donghua Wu and Jin Luan, who have also contributed to the development of maglev train technologies. Their teamwork has fostered an environment of innovation and creativity, leading to significant