Abstract: Exhaust gas system (1) for an internal combustion engine (2) of a saddle-ride type vehicle (20), comprising: —a first conduit portion (3) with one or more primary catalysts (6) arranged inside thereof; —a second conduit portion (4) with one or more secondary catalysts (6?) arranged inside thereof; —a third conduit portion (5) inside of which there is arranged a number of secondary catalysts (6?) which is less than the number of secondary catalysts arranged inside said second conduit portion (4); —at least one outlet (16,17) for discharging exhaust gas to atmosphere; wherein said first conduit portion (3) extends from a first end (11) connectable to an outlet of said internal combustion engine (2) and branches at a branch point (19) into said second and third conduit portions (4,5); wherein said exhaust gas system (1) further comprises at least one valve (7) configured to deviate an exhaust gas flow coming from the engine (2) from the first conduit portion (3) into one or both of said the second and third cond

Abstract: A lubrication system for internal combustion engines, in particular for vehicles with a rideable saddle, said system comprising a crank chamber in which at least one connecting rod is accommodated, and a basin or pan for collecting a lubricating liquid, wherein said crank chamber and said collection basin or pan are put in mutual communication by means of a first opening obtained in said crank chamber, wherein the flow of said lubricating liquid through said first opening from said crank chamber into said basin is adjusted by means of a first adjusting element adapted to be switched to an open position so as to allow the discharge of said lubricating liquid from said crank chamber into said collection basin or pan at a predetermined switching gas pressure value inside said crank chamber.

Abstract: A top box for a ridable saddle vehicle, including a bottom and a fixing assembly provided on the bottom and configured to fix the top box to a luggage carrier which has at least one mounting portion, where the fixing assembly is configured to take a release configuration, in which it allows coupling/decoupling the top box to/from the luggage carrier, and a fixing configuration, in which it allows fixing the top box to the luggage carrier, where the fixing assembly includes at least one fixing portion shaped so as to achieve a shape coupling with the mounting portion when the fixing assembly takes the fixing configuration.

Abstract: Riding-saddle motor vehicle including a front frame which extends along a longitudinal direction having at least one front wheel, a rear frame having a pair of rear wheels mounted on opposite sides of a rear wheel axis, a motor unit mounted on board the front frame and adapted to provide a driving torque to the pair of rear wheels and/or the front wheel, where the motor unit is connected to the rear wheel axis by means of an articulated transmission joint adapted to allow a relative rotation, around the longitudinal direction, between the front frame and the rear frame, and transmit a driving torque to the pair of rear wheels.

Abstract: A key switch including: a support base; a key which is manually operable for being moved, with respect to the support base, between at least a first operating position and a second operating position spaced apart from each other, in order to establish or interrupt at least one electric connection; a leaf spring member operatively interposed between the support base and the key; wherein the first operating position is a stable operating position of the key in which the leaf spring member is deformed between the key and the support base so as to take a first curvilinear configuration.

Abstract: A motorcycle including a motorcycle body having a front part, a tail part and a central part between the front part and the tail part front and rear wheels constrained to the motorcycle body (2,3,4), a traction engine constrained to the motorcycle body (2,3,4) and operatively connected to at least one of the wheels, at least one optical signalling device fixed to the motorcycle body arranged and oriented so as to be visible by a vehicle that is following the motorcycle, an electronic control unit of the optical signalling device operatively connected to the optical signalling device, an obstacle sensor fixed to the motorcycle body (2,3,4) and operatively connected to the electronic control unit, where the electronic control unit is adapted and configured to receive at least one output signal supplied by the obstacle sensor, verifying whether said output signal meets at least one logical activation condition and, in such case, turning on the optical signalling device to signal a risk of collision with the moto

Abstract: A combustion engine for a vehicle includes a device for changing the timing of suction/relief valves with respect to the drive shaft. The device includes a first disc idly mounted to the camshaft and has a first side defining first slot tracks. A second disc is integral with the camshaft and includes second slot tracks facing the first side of the first disc. Drive elements transmit motion between the first disc and the second disc and each is accommodated between corresponding two of the partially facing tracks. As centrifugal forces caused by the rotation speed of the camshaft changes, each drive elements moves between a first reference position and a second reference position which are close to and far from the rotation axis of the camshaft, respectively. A phase changer device exerts a force which tends to oppose movement of said drive elements towards the second reference position.

Abstract: A gear shift (100) is described for a saddle vehicle (M) comprising a shift lever (110), a selecting element (130) actuated through the shift lever (110) and a selector drum (150) connected to the selecting element (130) and adapted to engage gears. The gear shift (100) further comprises a block device (140) functionally connected to the selector drum (150) and configured so as to be switched between: a first configuration, wherein the block device (140) allows engaging a first gear (I) from a neutral gear (N) in a first change direction (Up), a second configuration, wherein the block device (140) inhibits the subsequent engagement of the neutral gear (N) from the first gear (I) in a second change direction (Dwn). Control means (120) of the block device (140) are further provided, actuated by a rider (G) so as to define a third configuration, wherein the block device (140) is disabled in order to allow engaging the neutral gear (N) from the first gear (I) in the second change direction (Dwn).

Abstract: The motor vehicle (1) comprises at least one rear driving wheel (5) and two front steered wheels (7?, 7?). A tilting four bar linkage (11) allows the motor vehicle to perform a tilting movement, for example, when cornering. Support arms (21?, 21?) for front steered wheels (7?, 7?), which rotate around steering axes (21A?, 21A?) and are joined to each other by a steering bar (23), are associated with the tilting four bar linkage. Each wheel is constrained to the respective support arm with the interposition of a suspension (33; 33?). A tilting locking device comprises a brake (53?, 53?) which locks the springing movement of the respective suspension and the tilting movement of the four bar linkage.

Abstract: Shock absorber having a main sheath and a main piston sliding inside the main sheath in a sliding direction (X-X), the main piston including a main rod coming out of the main sheath and a main head contained inside the main sheath, the main sheath being filled with hydraulic fluid, a secondary sheath fluidically connected to the main sheath and provided with at least one damping valve, where the secondary sheath is connected to the main sheath by a first and a second passage placed at opposite ends to the main head of the main piston, along the sliding direction (X-X), the secondary sheath including a control valve movable, according to a regulation stroke, between an unlocking position, in which it does not interfere with the first and second passages, and a blocking position, where it occludes the first and second passages so as to realize a selective two-way block.

Abstract: A method (100) for estimating a volume of fuel available in a fuel tank (6) of a transport vehicle (1), the tank (6) comprising a tank wall inside which a space is defined for containing fuel, the method (100) comprising, in sequence, the steps of: a) exciting (101) a vibration of the tank (6); b) acquiring (102) a response signal correlated to a frequency response produced by the tank (6) due the excited vibration; c) processing (103) the acquired response signal to obtain an estimate of the initial volume of fuel available in the tank (6); d) gradually taking (104) fuel from the tank (6) with the transport vehicle (1) in use; e) estimating (105) a quantity of fuel taken gradually from the tank (6); f) estimating (106) the volume of fuel available in the tank (6) based on the initial volume and quantity estimate of fuel taken gradually.

Abstract: An electric drive motorcycle (100), comprises: a front portion comprising one or more front wheels (103) and a handlebar (104); a rear portion comprising a saddle (101), a shell body (107) arranged below said saddle (101), and a rear wheel (105) arranged below said shell body (105); an intermediate portion (108) extending as a connection between said front portion and said rear portion; an electric drive unit (8) connected to said rear wheel (105); a power supply unit feeding said electric drive unit (8); and a helmet carrying compartment (11) placed in the shell body (107) below the saddle (101), wherein said power supply unit is arranged in a position below said helmet carrying compartment (11), so that said saddle (101), said helmet carrying compartment (11) and said power supply unit are substantially stacked on each other, being said helmet carrying compartment (11) and said power supply unit arranged inside the shell body (107), wherein said supply unit comprises a battery unit (15) or a battery unit (1

Abstract: Suspension assembly including a body associable to the chassis of the tilting vehicle and two junction devices opposite with respect to the body; the junction devices being articulated to the body by means of connecting elements, wherein each junction device includes a first structural junction portion rotationally coupled in a first coupling site to a first connecting element and a second structural joint portion rotationally coupled in a second coupling site to a second connecting element; and wherein the suspension assembly further includes elasto-damping elements associated with the hinge devices and adapted to damp the stresses transmitted by the wheels; and wherein each hinge device includes a dynamic junction portion rotationally coupled to a elasto-damping element in a dynamic junction coupling site; and wherein the junction device rigidly determines the relative positioning and spatial orientation of the first structural joint portion, the second structural joint portion and the dynamic joint portion

Abstract: A shock absorber assembly including a first sheath slidingly housing inside it a first piston which is filled with hydraulic fluid, the first piston having a first stem extending from the first sheath and a first head contained inside the first sheath, a second sheath slidingly housing inside it a second piston which is filled with hydraulic fluid, the second piston having a second stem extending from the second sheath and a second head contained inside the second sheath. The first and second sheaths are fluidly connected to each other by means of at least one upper duct and a first interconnection duct passing through a control body.

Abstract: An electric drive motorcycle (100) allows a suitable configuration of all the components deputed to the electric supply of the motorcycle electric drive, and comprises: a front portion comprising one or more front wheels (103) and a handlebar (104); a rear portion comprising a saddle (101), a shell body (107) arranged below said saddle (101), and a rear wheel (105) arranged below said shell body (107); an intermediate portion (108) extending as a connection between said front portion and said rear portion; an electric drive unit (8) connected to said rear wheel (105); and a hybrid supply unit supplying said electric drive unit (8), comprising at least a battery unit (115) and a combustion engine (116) actuating an electric generator (120) apt to supply said battery unit (115) and/or said electric drive unit (8), wherein said shell body (107) defines a housing space apt to receive at least said battery unit (115) and said combustion engine (116), with the related electric generator (120), placed side by side t

Abstract: A cooling system of an internal combustion engine of a motorcycle, which has a suction side guard (4), enables a high ratio between the open surface of the guard and its overall surface, ensuring an improved penetration of the air through the radiator and thus avoiding oversizing of the suction fan, wherein: said guard (4), having a lower edge (6), an upper edge (7), a front edge (8) and a rear edge (9) with respect to a running direction (F) of the vehicle, has a grate mesh structure extending on a plane whereby a deviation space (12) of motion of the air sucked by the fan is defined behind the guard (4); said grate mesh structure being surrounded by a rib (13) having, at the front edge (8), a lower height than that at the rear edge (9).

Abstract: A high performance synchronous transmission to be used aboard a motorcycle for transmitting the motion generated by an engine to a driving wheel, between a crankshaft and a hub shaft parallel therebetween and perpendicular to the median plane of the motorcycle, comprising on the crankshaft a centrifugal clutch, for the automatic engagement of the first speed above a predetermined rotation regime, and a driving pulley apt to transmit the motion through a subsequent kinematic chain, is provided with a coupling between crankshaft and driving pulley which connects them directly, by determining with its own engagement the exclusion of said centrifugal clutch, said coupling being controlled in disengagement when a control lever is in active position.