However, not all innovations are equal and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

Mechanical injection systems rely entirely on engine driven components to meter, pressurize, and time fuel delivery. In these engines, a mechanical injection pump is driven by the engine's gear train ...

Aren’t the Duramax (left) and 5.9L Cummins common-rail (right) injectors from Bosch similar looking?...The solenoids and upper bodies of the injectors are the same. The returns appear to be the same, ...