Location History:
- Richmond, CA (2005 - 2006)
- Etobicoke, CA (2007)
Company Filing History:
1 out of 2 
1 out of 137 
1 out of 29 
Years Active: 2005-2007
Title: John Gordon Crawford: Innovator in Gaseous Fuel Injection Technology
Introduction
John Gordon Crawford is a notable inventor based in Richmond, CA (US). He has made significant contributions to the field of internal combustion engines, particularly in the area of gaseous fuel injection. With a total of 3 patents to his name, Crawford's work has advanced the efficiency and functionality of engine systems.
Latest Patents
Crawford's latest patents focus on methods of injecting gaseous fuel into internal combustion engines. One of his patents describes a method that involves selecting one of at least two predetermined operating modes based on engine load and speed. This method includes a fuel injection valve with an actuator that adjusts the amplitude of the valve needle during injection. In the first operating mode, which is designed for low load and low speed, the actuation pulse is rectangular. Conversely, in the second operating mode, which caters to higher loads and speeds, the actuation pulse consists of multiple segments, with the initial segment having an amplitude less than 90% of the subsequent segment.
Another patent outlines a method for operating a gaseous-fueled internal combustion engine. This method also involves selecting between two operating modes based on engine conditions. In the first mode, the gaseous fuel is injected in a single event with a constant amplitude. In the second mode, the injection begins with a constant amplitude for a set duration before increasing to a higher amplitude.
Career Highlights
Crawford has worked with several companies throughout his career, including Westport Germany GmbH and Westport Power Inc. His experience in these organizations has allowed him to refine his expertise in engine technology and fuel systems.
Collaborations
Crawford has collaborated with notable professionals in his field, including Kenneth R. C. Mann and Ulrich Hilger. These collaborations have contributed to the development of innovative solutions in gaseous fuel injection.
Conclusion
John Gordon Crawford's contributions to the field of gaseous fuel injection technology have made a significant impact on internal combustion engine efficiency. His innovative methods and collaborative efforts continue to influence advancements in this area.