Company Filing History:
2 out of 113 
2 out of 2 Years Active: 2025
Title: Luhe Zhang: Innovator in Gear Transmission Technology
Introduction
Luhe Zhang is a prominent inventor based in Chongqing, China. He has made significant contributions to the field of gear transmission technology, holding a total of 2 patents. His innovative designs focus on enhancing the efficiency and functionality of gear systems.
Latest Patents
Zhang's latest patents include an "External meshing cylindrical gear pair with constant meshing characteristics constructed tooth pair." This invention features a cylindrical gear I and a cylindrical gear II, both designed with constructed tooth pairs based on conjugate curves. The normal tooth profile curves are continuous combined curves, facilitating machining with the same cutter. Additionally, a common normal at an inflection point or tangent point passes through a pitch point of the gear pair, allowing for adjustments based on actual demands. The contact ratio is designed as an integer.
Another notable patent is the "Herringbone planetary gear transmission device with constant meshing characteristics constructed tooth pair." This device includes a sun gear, a planetary gear, and an internal gear, all featuring constructed tooth pairs based on conjugate curves. The normal tooth profiles are identical combined curves, enabling machining with the same cutter. The sliding ratio of the meshing gear pair can be adjusted according to the position of the inflection point or tangent point, with the contact ratio also designed as an integer.
Career Highlights
Luhe Zhang has worked at Chongqing University and Chongqing Yisilun Technology Co., Ltd. His experience in these institutions has allowed him to develop and refine his innovative ideas in gear transmission technology.
Collaborations
Zhang has collaborated with notable colleagues, including Bingkui Chen and Changyan Peng. Their teamwork has contributed to advancements in the field and has fostered a collaborative environment for innovation.
Conclusion
Luhe Zhang's contributions to gear transmission technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, showcasing the importance of innovation in engineering.