MODULE FOR CONTROLLING FUEL PRESSURE IN AN INTERNAL COMBUSTION ENGINE

摘要

A module for controlling a first fuel rail pressure in an internal combustion engine and maintaining a predetermined pressure bias with a second fuel rail pressure comprises a manifold body and several components that are mounted on the manifold body to form an unitary and independent structure that is fluidly connected to a first fuel supply and to a first fuel rail. The components that are mounted on the manifold body are a pressure regulator, a shut-off valve and a check valve and can further comprise, for example, a service valve for venting the fuel from the module and/or a sensor for measuring the pressure in the first fuel rail.