Francis J Sisk

Title: Innovations by Francis J Sisk

Introduction

Francis J Sisk is a notable inventor based in Apollo, PA (US). He has made significant contributions to the field of heating and cooling systems, holding a total of 6 patents. His work focuses on improving the efficiency and effectiveness of these systems, showcasing his innovative spirit and technical expertise.

Latest Patents

One of Sisk's latest patents is for a heating and cooling system and method. This vapor compression heating and cooling system features an improved Coefficient of Performance and Capacity. In this system, post-condenser liquid is cooled in a subcooler coil by a stream of air. One embodiment of this invention provides a warming machine or heat pump where the condenser coil is located within a volume to be warmed, while the evaporator coil is exposed to ambient air outside. A stream of ambient air is pumped in heat exchange relationship with the subcooler coil to recover and expel heat from the coil into the volume. This design minimizes the infiltration of ambient air, creating an overpressure within the space being heated. Another embodiment utilizes the system for refrigerating a volume, such as a reefer trailer, where the evaporator coil is inside the compartment and the condenser coil is outside, effectively managing heat exchange.

Another significant patent by Sisk is for a fuel-fired supplementary heater for heat pumps. This invention includes a compressor, an indoor condenser for winter heating, and an outdoor evaporator. A second refrigerant loop is formed, bypassing the compressor and communicating with the condenser outlet and intake. A liquid metering pump flows liquid refrigerant from the outlet of the condenser via a fuel vaporizer back to the condenser intake. This auxiliary heat from the burner enhances indoor heating by supplying heated refrigerant vapor to the condenser.

Career Highlights

Francis J Sisk is associated with the Electric Power Research Institute Incorporated, where he continues to innovate in the field of energy efficiency. His work has had a lasting impact on the development of advanced heating and cooling technologies.

Collaborations

Sisk has collaborated with notable colleagues such as Stephen E Veyo and Thomas J Fagan, Jr. These partnerships have contributed to the advancement of his inventions and the overall progress in the field.

Conclusion

Francis J Sisk's contributions to heating and cooling systems demonstrate his commitment to innovation and efficiency. His