Jung-chen Chein

Title: Jung-chen Chein and the Combination Double Screw Rotor Assembly.

Introduction

Jung-chen Chein is an inventor associated with Hsinchu, Taiwan, and the Industrial Technology Research Institute. His work includes a patented design for a double screw rotor assembly intended to improve air compression while reducing power loss and operating noise.

Latest Patents

Chein is credited with 1 patent: “Combination Double Screw Rotor Assembly.” The invention places two parallel screw rotors inside a casing. Each rotor has low-pressure and high-pressure elements, with spiral thread segments of different pitches that mesh with corresponding segments on the other rotor.

During operation, air moves from larger chambers around the low-pressure elements toward smaller chambers around the high-pressure elements, where it is compressed. The design aims to limit reverse airflow caused by pressure differences near the outlet, thereby minimizing power loss and operating noise.

Career Highlights

Chein’s patent reflects engineering work focused on rotor geometry, airflow, and compression efficiency. His association with the Industrial Technology Research Institute connects this invention to an organization engaged in technology research and development.

Collaborations

Chun-Chien Chen and Ming-Hsin Liu are identified as Chein’s coworkers. The available information does not specify their roles in developing or patenting the rotor assembly.

Conclusion

Jung-chen Chein’s patented double screw rotor assembly uses staged screw elements and varying thread pitches to support efficient air compression and reduce reverse flow, power loss, and operating noise.