Road vehicle with an internal combustion engine and provided with an exhaust noise transmission device
AssigneeFerrari S.P.A.
InventorFrancesco Naclerio
Life of this patent
Estimating the term…
Abstract
Road vehicle having: a passenger compartment; an internal combustion engine provided with at least one exhaust duct, which originates from an exhaust manifold and has at least one exhaust gas treatment device; and an exhaust noise transmission device provided with a transmission duct, which originates from the exhaust duct, and with a symposer device, which is arranged inside the transmission duct, is pneumatically insulating and is acoustically permeable; an inlet of the transmission duct being arranged between the exhaust manifold and the exhaust gas treatment device, hence upstream of the exhaust gas treatment device.
Claims11
A road vehicle (1) comprising:
- a passenger compartment (5);
- an internal combustion engine (4) provided with at least one exhaust duct (13), which originates from an exhaust manifold (8) and has at least one exhaust gas treatment device (17);
- and
- an exhaust noise transmission device (21), which is provided with at least one transmission duct (22), which originates from the exhaust duct (13), and with a symposer device (23), which is arranged inside the transmission duct (22), is pneumatically insulating and is acoustically permeable;
- wherein an inlet (24) of the transmission duct (22) is arranged between the exhaust manifold (8) and the exhaust gas treatment device (18), hence upstream of the exhaust gas treatment device (18);
- the road vehicle (1) being characterized in that the transmission device comprises:
- a temperature sensor (28) or a flow sensor (29) arranged inside the transmission duct (22);
- and
- a control unit (30) which, through the temperature sensor (28) or the flow sensor (29) diagnoses the presence of exhaust gas leaks in the transmission duct (22).
Dependencies are inferred from the claim text.