Douglas R Potratz

Title: Douglas R. Potratz: Innovator in Engine Control Systems

Introduction

Douglas R. Potratz is a notable inventor based in Oshkosh, WI (US). He has made significant contributions to the field of engine control systems, holding a total of 3 patents. His work focuses on enhancing the performance and efficiency of internal combustion engines, particularly through innovative ignition and fuel injection technologies.

Latest Patents

One of Potratz's latest patents is a "Cylinder-specific spark ignition control system for direct fuel injected" engines. This invention allows for the control of spark ignition timing and ignition coil dwell time on a cylinder-specific basis. By customizing spark ignition and fuel injection, the system improves engine running quality and reduces emissions. The electronic control unit features a high-resolution global look-up table that determines values for spark ignition and fuel injection based on engine load and speed. Additionally, it includes low-resolution, cylinder-specific offset value look-up tables to generate precise control signals.

Another significant patent is the "Ignition coil dwell time control system." This system minimizes ignition coil dwell times at medium and high engine speeds, optimizing engine performance. The electronic control unit also implements an intermittent spark plug cleaning strategy, which raises the ignition coil dwell time temporarily to clean fouled spark plugs during operation.

Career Highlights

Douglas R. Potratz is currently employed at Brunswick Corporation, where he continues to innovate in engine technology. His work has been instrumental in advancing the efficiency and performance of two-stroke direct fuel injected engines.

Collaborations

Potratz collaborates with Mark A. Ruman, contributing to the development of cutting-edge engine control systems.

Conclusion

Douglas R. Potratz is a prominent inventor whose work in engine control systems has led to significant advancements in performance and efficiency. His innovative patents reflect his commitment to improving internal combustion engine technology.