Location History:
- Goyang-si, KR (2014)
- Daejeon, KR (2024)
Company Filing History:
2 out of 772 
1 out of 832,680 Years Active: 2014-2025
Title: Innovations by Dong Hyuk Chang
Introduction
Dong Hyuk Chang is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of compressor technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and durability of compressors used in various applications.
Latest Patents
One of his latest patents is a variable displacement swash plate type compressor. This innovative design smoothly supplies oil contained in a refrigerant inside a crank-case to a drive shaft seal region of a front housing. This mechanism reduces the frictional heat temperature between the drive shaft and a sealing member, preventing leakage of refrigerant and pressure, while improving durability. Another significant patent is the swash plate compressor, which includes a housing, a rotating shaft, and a swash plate that rotates with the shaft. This design features a piston that forms a compression chamber and interlocks with the swash plate to reciprocate. The compressor also includes a discharge flow path that guides refrigerant from the crank chamber to the suction chamber, with an adjustable inclination angle of the swash plate and a control valve that manages the flow based on pressure differentials.
Career Highlights
Throughout his career, Dong Hyuk Chang has worked with Hanon Systems, where he has contributed to advancements in compressor technology. His expertise in this field has allowed him to develop innovative solutions that address common challenges in compressor design and functionality.
Collaborations
Dong Hyuk Chang has collaborated with notable colleagues such as Se Young Song and Ok Hyun Kim. Their combined efforts have led to significant advancements in the technology surrounding compressors.
Conclusion
Dong Hyuk Chang's contributions to compressor technology through his patents and collaborations highlight his role as an influential inventor in the industry. His innovative designs continue to improve the efficiency and reliability of compressors, making a lasting impact on the field.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.