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Follow on Google News | Two dimensional ultrasonic inspection technique helps downsize high perfomance diesel enginesNew Non Destructive Testing Method helps major vehicle manufacturer to significantly reduce CO2 emissions
“Diesel downsizing increases specific power output in order to improve fuel economy and CO2 emissions and also increases the thermal and mechanical loads that diesel pistons must withstand,” says Gian Maria Olivetti, Federal-Mogul’ Modern diesel pistons have a cooling gallery, through which oil flows continuously. The position and design of the gallery have a significant impact on the component’s operating temperature and durability. The closer the gallery is to the piston bowl, the more heat that can be removed, allowing engine manufacturers to increase combustion temperatures and pressures to improve fuel economy and CO2 emissions. Standard, one-dimensional ultrasonic testing can identify defects but cannot quantify their size and position. Federal-Mogul’ “In the past, it was very difficult to cast gallery pistons with such precise control of the size and location of the cooling gallery,” said Dr. Frank T.H. Doernenburg, Federal-Mogul director of technology, pistons and pins. ”Federal-Mogul’ Federal-Mogul validated its 2D ultrasonic technology by dissecting and sampling hundreds of pistons, correlating the ultrasonic images against destructive testing methods. The research resulted in the development of software tools as well as a number of key physical parameters such as probe geometry, wave length, beam geometry and focus. Piston design and subsequent piston performance can be increased significantly through Federal-Mogul’ About Federal-Mogul Federal-Mogul Corporation is a leading global supplier of powertrain and safety technology and innovation to improve fuel economy, reduce emissions and enhance vehicle safety. The company serves the world’s foremost original equipment manufacturers of automotive, light, medium-, heavy-duty, aerospace, marine, rail and off-road vehicles; and industrial, agricultural and power-generation equipment; as well as providing well-known brands in the global aftermarket. Federal-Mogul’ Press contact Tristan Honeywill Market Engineering Tristan.honeywill@ +44 1295 277050 End
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