Jeffery L Campbell

Title: Innovations by Jeffery L Campbell

Introduction

Jeffery L Campbell is an accomplished inventor based in Hope, Indiana, known for his significant contributions to the field of engineering. He holds 2 patents that showcase his innovative approach to solving complex problems in fuel injection technology.

Latest Patents

His latest patents include a high-pressure limiting valve with fast response and an improved high-pressure fuel injector. The high-pressure limiting valve is a pressure-responsive spring valve designed to function efficiently at high pressures and temperatures. It achieves a high degree of precision control while minimizing space requirements. The valve utilizes a band-like spring member to reduce the number of parts compared to traditional coil spring types, enhancing performance and precision at the outlet port area.

The second patent focuses on reducing trapped volume in open nozzle type unit fuel injectors. This invention features an improved lower plunger and cup design that minimizes trapped fuel volume, thereby reducing unburned hydrocarbons in vehicle emissions. The design includes a major and minor diameter section in the plunger, which optimizes fuel flow and metering sensitivity.

Career Highlights

Jeffery L Campbell is associated with Cummins Engine Company, Inc., where he applies his expertise in fuel injection systems. His work has contributed to advancements in engine performance and emissions reduction.

Collaborations

He has collaborated with notable coworkers such as Oldrich S Kolarik and Lester L Peters, further enhancing the innovative environment at Cummins.

Conclusion

Jeffery L Campbell's contributions to fuel injection technology through his patents reflect his commitment to innovation and engineering excellence. His work continues to influence the automotive industry and improve environmental outcomes.