Robert Hofer

Title: Innovations by Robert Hofer

Introduction

Robert Hofer is a notable inventor based in Elgg, Switzerland. He has made significant contributions to the field of fuel injection technology, holding a total of four patents. His work focuses on enhancing the efficiency and reliability of fuel injection systems in combustion engines.

Latest Patents

One of Hofer's latest patents is the Fuel Injection Valve. This innovative valve is designed with a pair of ceramic rings that define multiple nozzles for injecting fuel into a combustion chamber. The ceramic rings are strategically mounted around an annular groove on the valve body and connect with a fuel delivery duct. They are secured in place by threaded rings and intermediate rings, which feature conical surfaces that align with the conical surface of the valve body.

Another significant patent is the Injection System for a Valve of a Diesel Engine. In this design, the valve needle of the injection valve is actuated by a control pressure generated by a hydraulic injection system. This control pressure is produced by a piston pump and is delivered through a control line to the injection valve. At the start of the stroke, a bypass flow path is opened, which gradually decreases in cross-section as the piston stroke progresses. This mechanism ensures a control pressure that is free from pressure waves and their reflections, allowing for smooth operation of the valve needle without oscillations.

Career Highlights

Robert Hofer is currently employed at Sulzer Brothers Limited, a company known for its engineering and manufacturing expertise. His work at Sulzer has allowed him to develop and refine his innovative ideas in fuel injection technology.

Collaborations

Hofer collaborates with talented coworkers such as Anton Steiger and Frederic Porchet. Their combined expertise contributes to the advancement of technology in their field.

Conclusion

Robert Hofer's contributions to fuel injection technology through his patents demonstrate his commitment to innovation and engineering excellence. His work continues to influence the efficiency of combustion engines, showcasing the importance of inventive minds in the industry.