Magneti Marelli S.p.a.

Andrea Davitti

Marcello Cristiani

Stefano Fornara

Michele Pecora

Giampaolo Schiavina

Carlo Orlandi

Giovan Giuseppe Trani

An intake manifold with integrated canister circuit for a supercharged internal combustion engine provided with: a tubular body in which a plenum is defined; a sorting chamber obtained in a wall of the tubular body; a canister solenoid valve arranged in the sorting chamber and is adapted to adjust the introduction of gasoline vapours into the sorting chamber; a first pipe, which is obtained in the wall of the tubular body, puts the sorting chamber into communication with the plenum, and defines a first branch of a recovery pipe; a second pipe, which is obtained in the wall of the tubular body and defines an initial portion of a second branch of the recovery pipe; a first one-way valve which allows, through the first pipe, only a flow towards the plenum; a second one-way valve which allows, through the second pipe, only a flow through the intake pipe.

Intake manifold with integrated canister circuit for a supercharged internal combustion engine

An internal combustion engine with electromagnetically actuated valves comprising a variable volume combustion chamber, at least one suction duct connecting the combustion chamber with the suction manifold of the engine and at least one exhaust duct connecting the combustion chamber with the exhaust manifold of the engine, the internal combustion engine further comprising, for each suction and exhaust duct, a respective mushroom valve that can move from and to a closed position in which it closes the duct and an electromagnetic actuator adapted on command to move the valve to and from the closed position, the internal combustion engine further comprising, for at least one of the valves, a device for balancing the pressures exerted on the head of the valve and adapted to balance the pressure forces that tend to oppose the opening of this valve.

Internal combustion engine with electromagnetically actuated valves

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Turin, Italy

Andrea Davitti