Patent ID: 7213575
Filing Date: 2007-05-08
Classification: F02M

Abstract:
1. A fuel manifold for the direct injection of fuel into an internal combustion engine comprising a head provided with a number of cylinders, a number of injectors, each of which is connected to the fuel manifold and is adapted directly to inject the fuel into a respective cylinder, and an intake manifold which is connected to the head in order to supply fresh air to the cylinders, wherein the fuel manifold is formed by a single monolithic body which is made of thixotropic aluminum by means of a pressure die casting process and comprises a supply duct adapted to distribute the fuel under pressure to the injectors, and a flange disposed laterally to the supply duct, the flange having a plurality of through holes in order to be secured by respective screws to the head of the engine and comprising a number of coupling members, each of which is adapted to bring a respective cylinder into communication with the intake manifold; the supply duct includes a main cylindrical tubular channel having two opposite open ends, one of which is used to supply the fuel under pressure and the other is closed by a screw cap; in the vicinity of the end closed by the screw cap, the main cylindrical tubular channel has a first opening adapted to receive a pressure regulator and a second opening adapted to receive a pressure sensor.