P Douglas Free

Title: P Douglas Free: Innovator in Fuel Injection Technology

Introduction

P Douglas Free is a notable inventor based in Columbus, IN (US), recognized for his contributions to fuel injection technology. He holds a total of 4 patents, showcasing his innovative approach to engineering challenges in the automotive industry.

Latest Patents

Among his latest patents is the "Liquid cooled fuel injection valve and method of operating a liquid cooled fuel injection valve." This invention involves a fuel injection valve that injects fuel directly into a combustion chamber through a nozzle orifice in the injector tip. The design includes a cooling system that drains fuel from a cavity within the injector tip, utilizing a drain valve that opens under specific pressure conditions. This innovative cooling system enhances the efficiency of fuel injection.

Another significant patent is the "Multiple nozzle ejector for wastegated turbomachinery." This invention improves wastegated turbochargers by incorporating ejector nozzles that allow bypassed exhaust flow to re-enter the main exhaust flow at optimal angles. This design reduces turbine back pressure, enhancing the overall performance of the turbocharger.

Career Highlights

P Douglas Free has worked with prominent companies in the industry, including Cummins Engine Company, Inc. and Westport Research Inc. His experience in these organizations has contributed to his expertise in fuel injection systems and turbocharging technologies.

Collaborations

Throughout his career, Free has collaborated with notable professionals such as Lester L Peters and David A Vittorio. These partnerships have likely influenced his innovative designs and advancements in fuel injection technology.

Conclusion

P Douglas Free's contributions to fuel injection technology through his patents and career experiences highlight his role as a significant innovator in the automotive field. His work continues to impact the efficiency and performance of modern engines.