Single Cam (IMAGE) Southwest Research Institute Caption SwRI tribologist Carlos Sanchez observes a test in progress on the single cam rig, a device designed by Institute engineers to investigate wear mechanisms in an engine's valvetrain components. Credit Southwest Research Institute Usage Restrictions Images/videos may be used by the media and the public for educational and informational purposes only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.