High-pressure pump is responsible for compressing the fuel supplied by the electric fuel pump to the pressure required for high-pressure injection

The principle is based on the turbocharger using overpressure to force more air into the intake manifold so that a larger air mass enters the combustion chamber.

The in-line and rotary fuel injection pumps of Bosch could cater to the full spectrum of diesel engines

Today, manufacturers use CRDi technology to overcome some of the deficiencies of conventional diesel engines which were sluggish, noisy and poor in performance when implemented especially in passenger vehicles.

Bosch fuel rails can be either throughflow modules when used in manifold injection, or they are of the non-throughflow type when used with gasoline direct injection.