Engine system

An engine system, comprising:

• an internal combustion engine, comprising an intake, a first set of cylinders including at least a first cylinder and a first exhaust collector, and a second set of cylinders including at least a second cylinder and a second exhaust collector,
• a turbocharger,
• a first exhaust conduit, providing fluid communication between the first exhaust collector and the turbocharger,
• a second exhaust conduit, providing fluid communication between the second exhaust collector and the turbocharger, an exhaust gas recirculation system, comprising:
• a recirculation conduit, providing fluid communication between the first exhaust collector and the intake of the internal combustion engine, and
• a proportional recirculation valve, adapted to control a flow of exhaust gas in the recirculation conduit, and operable between an open position in which the flow of exhaust gas is allowed, and a closed position in which the flow of exhaust gas is prevented, the closed position being a resting position of the proportional recirculation valve,
• a first proportional exhaust valve, adapted to control a flow of exhaust gas in the first exhaust conduit, and operable between an open position in which the flow of exhaust gas is allowed, and a closed position in which the flow of exhaust gas is prevented, the open position of the first proportional exhaust valve being a resting position of the first proportional exhaust valve, and
• a second proportional exhaust valve, adapted to control a flow of exhaust gas in the second exhaust conduit, and operable between an open position in which the flow of exhaust gas is allowed, and a closed position in which the flow of exhaust gas is prevented, the open of the second proportional exhaust valve position being a resting position of the second proportional exhaust valve,
• wherein the engine system is switchable between:
• a first configuration, in which the first proportional exhaust valve is in the open position of the first proportional exhaust valve, the second proportional exhaust valve is in the open position of the second proportional exhaust valve, and the proportional recirculation valve is in the closed position of the proportional recirculation valve, and
• a second configuration, in which the first proportional exhaust valve is in the closed position of the first proportional exhaust valve,
• wherein the engine system comprises an actuator and a kinematic chain configured to operate at least two valves among the proportional recirculation valve, the first proportional exhaust valve and the second proportional exhaust valve, wherein an output component of the actuator comprises a gear and is in a neutral position when the engine system is in the first configuration,
• wherein a first movement of the output component, from the neutral position of the output component and in a first direction (R1;
• R1′), operates each of the at least two valves from the resting position of the respective at least two valves to another position, and wherein a second movement of the output component, from the neutral position of the output component and in a second direction (R2;
• R2′) opposite to the first direction, operates only one of the at least two valves from the resting position of the only one of the at least two valves to another position, and
• wherein the output component of the actuator is configured to operate each of the proportional recirculation valve, the first proportional exhaust valve, and the second proportional exhaust valve.