Company Filing History:
4 out of 1,721 
1 out of 774 
1 out of 66 Years Active: 2003-2016
Title: Innovations of Rodney James Callahan
Introduction
Rodney James Callahan is a notable inventor based in Novi, MI (US). He has made significant contributions to the field of air conditioning technology, holding a total of 6 patents. His work focuses on improving the efficiency and performance of compressors used in various applications.
Latest Patents
One of his latest patents is a variable suction device for an A/C compressor designed to enhance noise, vibration, and harshness (NVH) by varying the suction inlet flow area. This innovative variable displacement compressor features a suction throttle valve that includes a housing with a cavity. A first piston is reciprocatingly disposed in the cavity, allowing for variable restriction of refrigerant flow through a suction inlet. The design ensures that the refrigerant flows through the suction port in a direction that is not parallel to the piston’s reciprocation. The suction throttle valve is engineered to increase the restriction in the suction inlet when crankcase pressure rises relative to the external suction pressure of the refrigerant.
Another significant patent is an oil management system for a compressor. This system includes a hollow housing with a suction chamber, discharge chamber, and crank chamber. It features a first fluid flow path that facilitates the movement of the working fluid from the crank chamber to the suction chamber. Additionally, a second fluid flow path allows a mixture of working fluid and lubricating fluid to flow from the crank chamber to the suction chamber, with the path being selectively opened and closed by an annular sleeve.
Career Highlights
Rodney has worked with prominent companies in the automotive and technology sectors, including Visteon Global Technologies, Inc. and Hanon Systems. His experience in these organizations has contributed to his expertise in compressor technology and innovation.
Collaborations
Throughout his career, Rodney has collaborated with talented individuals such as Pete Edward Ganster and Michael Gregory Theodore, Jr. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Rodney James Callahan's contributions to compressor technology through his innovative patents demonstrate his commitment to enhancing efficiency and performance in air conditioning systems. His work continues to influence the industry and inspire future innovations.