Abstract: An intake manifold for an internal combustion engine comprising an engine head in which there are obtained a number of cylinders; the intake manifold comprises a central body, wherein there are obtained an intake chamber which receives the intake air and a number of conduits each of which connects the chamber to a corresponding cylinder of the internal combustion engine; first passage through holes obtained in the central body for fastening the intake manifold to the engine head by means of first fastening screws screwed into the engine head; a common rail which receives the pressurized fuel and is connected to a number of injectors, each of which injects the fuel into a corresponding cylinder; second blank threaded fastening holes obtained in the central body for fastening the common rail to the central body itself by means of the second fastening screws screwed into the central body and, for each second fastening hole, a metallic reinforcement bracket, which presents a first assembly through hole arranged o

Abstract: A suction manifold for an internal combustion engine provided with a head in which a number of cylinders are obtained; the suction manifold displays: a body of the suction manifold in which a suction chamber, which receives fresh air from the external environment, and a number of suction pipes, each of which connects the suction chamber to a corresponding cylinder of the internal combustion engine, are defined and which ends with an outlet mouth; and a choking system for varying the geometry of the suction manifold and comprising, for each suction pipe, a corresponding choking valve provided with a choking element, which is arranged inside the suction pipe and is fitted to a shaft which is rotated about a rotation axis by an actuator device; the shaft of the choking system is provided with a toothed wheel arranged at one end of the shaft itself; and the actuator device displays a movable rod, which is linearly movable and provided with a rack which meshes with the toothed wheel of the shaft of the choking sys

Abstract: An intake manifold for an internal combustion engine comprising an engine head in which there are obtained a number of cylinders; the intake manifold comprises a central body, wherein there are obtained an intake chamber which receives the intake air and a number of conduits each of which connects the chamber to a corresponding cylinder of the internal combustion engine; first passage through holes obtained in the central body for fastening the intake manifold to the engine head by means of first fastening screws screwed into the engine head; a common rail which receives the pressurized fuel and is connected to a number of injectors, each of which injects the fuel into a corresponding cylinder; second blank threaded fastening holes obtained in the central body for fastening the common rail to the central body itself by means of the second fastening screws screwed into the central body and, for each second fastening hole, a metallic reinforcement bracket, which presents a first assembly through hole arranged o