Fuel injectors can get gummed up with dirt and fuel residue over time. Photo credit: David Traver Adolphus / Autoguide ...

Because the air behaves in a predictable way, this means that a diesel engine's fuel nozzle can be precisely calibrated to ...

We are fascinated by the hybrid rocket engine which [Ben Krasnow] built and tested in his shop. It is actually using a hollow cylinder of acrylic as the fuel ... There is a nozzle on the ...

Fuel enters through a series of small tubes ... As the exhaust races out the back, the engine’s nozzle is designed to open wider to accommodate the extra volume of hot gas, preventing any ...

GE is already using printers to make fuel-nozzle tips for jet engines. And interest isn’t limited just to corporate giants. “We all know that 3-D printing is going to play a big role in the ...