Duran Cheung

Title: Duran Cheung: Innovator in Internal Combustion Engine Technology

Introduction

Duran Cheung is a notable inventor based in Vancouver, Canada. He has made significant contributions to the field of internal combustion engine technology, holding a total of 3 patents. His innovative work focuses on utilizing accelerometer signals to enhance engine performance and reliability.

Latest Patents

Duran Cheung's latest patents include a method and apparatus for using an accelerometer signal to detect misfiring in an internal combustion engine. This method involves operating an engine and collecting a real-time accelerometer signal from an accelerometer sensor. The signal is digitized and filtered to isolate data in a frequency range associated with combustion, producing a filtered signal data set. Misfire detection is achieved by comparing this integrated signal data set with a predetermined reference data set associated with the same operating point. The apparatus includes a control system for the engine, featuring an accelerometer sensor, a look-up table for storing reference data sets, and an electronic controller programmed to execute the method.

Another significant patent by Cheung is a method and apparatus for determining a normal combustion characteristic for an internal combustion engine from an accelerometer signal. This method involves operating a calibration engine and collecting combustion characteristic data alongside reference accelerometer signals, which are then correlated and stored in a calibration table. This table allows an engine to determine a real-time normal combustion characteristic by cross-correlating real-time accelerometer sensor signals with the stored data.

Career Highlights

Duran Cheung is currently employed at Westport Power Inc., where he continues to develop innovative solutions for engine technology. His work has been instrumental in advancing the understanding and application of accelerometer technology in internal combustion engines.

Collaborations

Duran has collaborated with notable colleagues, including Richard J Ancimer and Jian Huang, contributing to a dynamic and innovative work environment.

Conclusion

Duran Cheung's contributions to internal combustion engine technology through his patents and work at Westport Power Inc. highlight his role as a leading inventor in this field. His innovative methods for utilizing accelerometer signals are paving the way for advancements in engine performance and reliability.