Internal combustion engine system, comprising an internal combustion engine and an exhaust gas recirculation circuit
AssigneeVolvo Truck Corporation
InventorAdrien Halle
Life of this patent
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Abstract
An internal combustion engine system including an internal combustion engine and an exhaust gas recirculation circuit connecting an exhaust manifold of the engine to an intake manifold of the engine, the circuit including at least one reed valve, an EGR valve, that is arranged downstream of the reed valve on the path of exhaust gas flowing from the exhaust manifold to the intake manifold and an EGR line connecting the reed valve to the EGR valve. The system further includes a bypass line for gas, connecting the EGR line to an exhaust line of the engine and controller for controlling the flow of gas discharged through the bypass line.
Claims14
An internal combustion engine system, comprising an internal combustion engine and an exhaust gas recirculation circuit connecting an exhaust manifold of the engine to an intake manifold of the engine, the exhaust gas recirculation circuit comprising:
- at least one reed valve;
- an EGR valve arranged downstream of the reed valve on a path of exhaust gas flowing from the exhaust manifold to the intake manifold;
- an EGR line connecting an outlet of the reed valve to an inlet of the EGR valve, wherein the system further includes:
- a bypass line for gas, connecting the EGR line to an exhaust line of the engine;
- and
- a controller for controlling the flow of gas discharged through the bypass line via controlling an opening position of a discharge valve positioned in the bypass line.
A vehicle comprising an internal combustion engine system comprising an internal combustion engine and an exhaust gas recirculation circuit connecting an exhaust manifold of the engine to an intake manifold of the engine, the exhaust gas recirculation circuit comprising:
- at least one reed valve;
- an EGR valve, that is arranged downstream of the reed valve on the path of exhaust gas flowing from the exhaust manifold to the intake manifold;
- an EGR line connecting an outlet of the reed valve to an inlet of the EGR valve, wherein the system further includes:
- a bypass line for gas, connecting the EGR line to an exhaust line of the engine;
- and
- controller for controlling the flow of gas discharged through the bypass line via controlling an opening position of a discharge valve positioned in the bypass line.
Dependencies are inferred from the claim text.