Fred Ahlstrom

Title: Innovations by Fred Ahlstrom in HVACR Systems

Introduction

Fred Ahlstrom is an accomplished inventor based in Onalaska, WI (US). He has made significant contributions to the field of heating, ventilation, air conditioning, and refrigeration (HVACR) systems. His innovative work focuses on improving the efficiency and control of working fluid in HVACR units.

Latest Patents

Ahlstrom holds a patent for "Methods and systems for controlling working fluid in HVACR systems." This patent describes methods and systems designed to control the flow of working fluid in HVACR units. The system includes a compressor with a motor and drive, a condenser fluidly connected to the compressor, and a subcooler located downstream of the condenser. Additionally, it features an evaporator fluidly connected to the condenser and a controller. A bypass assembly connected to the condenser includes a bypass flow control device and a bypass fluid line. When a heat recovery demand is detected, the controller opens the bypass flow control device, allowing a portion of the working fluid to bypass the condenser or subcooler.

Career Highlights

Fred Ahlstrom is associated with Trane International Inc., a leading company in HVACR solutions. His work at Trane has allowed him to develop innovative technologies that enhance the performance and efficiency of HVACR systems. Ahlstrom's patent reflects his commitment to advancing the industry through practical and effective solutions.

Collaborations

Ahlstrom has collaborated with notable colleagues, including Jun Wang and Yves Jacques Raimbault. These partnerships have contributed to the development of cutting-edge technologies in the HVACR sector.

Conclusion

Fred Ahlstrom's contributions to HVACR systems through his innovative patent demonstrate his expertise and dedication to improving energy efficiency and control in this essential field. His work continues to influence the industry positively.