Thomas J Hollis

Title: Thomas J Hollis: Innovator in Exhaust Emission Control Technologies

Introduction

Thomas J Hollis is a notable inventor based in Fairport, NY (US). He has made significant contributions to the field of exhaust emission control technologies, holding a total of 2 patents. His work focuses on improving the efficiency and functionality of internal combustion engines.

Latest Patents

Hollis's latest patents include the "Exhaust Gas Recirculation Control" and the "Power Cruise Diverter Valve." The Exhaust Gas Recirculation Control patent describes a transducer that modifies a subatmospheric pressure signal to create an operating pressure, which positions an exhaust gas recirculation control valve. This innovation includes a regulating unit that senses subatmospheric induction passage pressure to provide the pressure signal, ensuring that the pressure signal does not drop below a lower limit. This mechanism establishes the maximum exhaust gas recirculation area produced by the control valve.

The Power Cruise Diverter Valve patent outlines an air control valve designed for use in the exhaust emission control system of an internal combustion engine. This valve performs three functions, including a divert timing switching diaphragm assembly that provides the standard diverter valve function during engine warmup. It also controls port air injection during mid-power conditions, provides secondary air bypass during high engine load, and allows for secondary air bypass during low engine load or vehicle cruise conditions.

Career Highlights

Hollis is currently associated with GM Global Technology Operations, Inc., where he continues to innovate in the field of automotive technology. His work has contributed to advancements in reducing emissions and improving engine performance.

Collaborations

Throughout his career, Hollis has collaborated with notable colleagues, including Edward G Day and William F Thornburgh. These collaborations have fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Thomas J Hollis is a distinguished inventor whose work in exhaust emission control technologies has made a significant impact on the automotive industry. His patents reflect a commitment to enhancing engine efficiency and reducing environmental impact.