John A J Griffiths

Title: John A J Griffiths: Innovator in Fuel Injection Technology

Introduction

John A J Griffiths is a notable inventor based in Vancouver, Canada. He has made significant contributions to the field of internal combustion engines, particularly in the area of fuel injection technology. His innovative approach has led to the development of a patented method that enhances the efficiency of gaseous-fuelled engines.

Latest Patents

Griffiths holds a patent for a "Method for determining fuel injection on-time in a gaseous-fuelled internal combustion engine." This invention provides a method and apparatus to accurately meter fuel injected directly into the combustion chamber. The fuel injection on-time is determined by interpolating between values retrieved from two predetermined look-up tables, which define fuel injection on-time as a function of gaseous fuel rail pressure and fuelling amount. Each table corresponds to a fixed value of a third parameter that correlates to in-cylinder pressure. This innovative method improves the performance and efficiency of gaseous-fuelled internal combustion engines.

Career Highlights

Throughout his career, Griffiths has worked with prominent companies in the industry. He has been associated with Westport Power Inc. and Westport Fuel Systems Canada Inc., where he contributed his expertise in fuel injection technology. His work has been instrumental in advancing the capabilities of gaseous-fuelled engines.

Collaborations

Griffiths has collaborated with various professionals in his field, including Olivier P M Lebastard. These collaborations have fostered innovation and development in fuel injection systems.

Conclusion

John A J Griffiths is a distinguished inventor whose work in fuel injection technology has made a significant impact on the efficiency of gaseous-fuelled internal combustion engines. His patented methods continue to influence advancements in the automotive industry.