Location History:
- Crescent, MN (US) (1997)
- La Crescent, MN (US) (1991 - 2017)
Company Filing History:
6 out of 789 
4 out of 645 
2 out of 1,121 
Years Active: 1991-2017
Title: The Innovative Contributions of William J Plzak
Introduction
William J Plzak is a notable inventor based in La Crescent, MN (US), recognized for his significant contributions to the field of refrigeration technology. With a total of 12 patents to his name, Plzak has developed innovative solutions that enhance the efficiency and performance of chiller systems.
Latest Patents
Among his latest patents is the "Coaxial Economizer Assembly and Method." This invention features a coaxial economizer designed for use in chiller systems, consisting of an inner and outer housing with a common longitudinal axis. The outer housing includes an inlet for fluid from an upstream compressor stage and an outlet for fluid to a downstream compressor stage. A flow chamber creates a fluid flow path around the inner housing, while a flash chamber converts liquid state fluid into gas state. The design allows for the mixing of flashed gas and incoming fluid, optimizing the flow toward the outlet.
Another significant patent is the "Centrifugal Compressor Assembly and Method." This assembly is intended for compressing refrigerant in chiller systems with a capacity of 250 tons or larger. It incorporates a motor, preferably a compact, high energy density motor, to drive a shaft at various sustained operating speeds. The assembly also features a mixed flow impeller and a vaneless diffuser, ensuring optimal performance for specific combinations of head and capacity.
Career Highlights
Throughout his career, Plzak has worked with prominent companies such as Trane International Inc. and the Gas Research Institute. His experience in these organizations has allowed him to refine his skills and contribute to advancements in refrigeration technology.
Collaborations
Plzak has collaborated with several professionals in his field, including Rick Todd James and Randall L Janssen. These partnerships have fostered innovation and the development of cutting-edge technologies.
Conclusion
William J Plzak's contributions to refrigeration technology through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative designs continue to influence the efficiency of chiller systems, showcasing the importance of creativity and engineering in modern technology.