Robert Bosch LLC

Spray Enhancements in Gasoline Direct Injection Enabled by Laser Drilling

Robert Bosch LLC, after 10 years of collaboration and invention, have perfected a Short Pulse Laser drilling technology that allows them to drill fuel injector tips with as many as 7 different tailored spray patterns per injector. This technology allows engine design architects to micro manage exactly how much fuel goes in specifically what direction in the combustion chamber to produce the most efficient combustion possible. The benefits of this truly unique technology include gains in fuel economy and a very important reduction in particulate emissions to levels below future European regulations that are being phased in. Two European manufacturers have already embraced this technology, using these injectors in their current production engines, and one American producer is including the new injectors in an engine family that is set to launch in 2014.