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Ducati 1199 Panigale “Superquadro” ability abode revealed

With just a amount of weeks to go until the final actualization of Ducati’s casting new 1199 Panigale at the EICMA International Motorcycle Show in Milan (10-13 November), the Italian architect has appear some of the secrets abaft the alarming ability of its 2012 Superbike.

Ducati engineers were asked for added power, torque and user-friendliness, a abridgement in all-embracing weight while carrying bargain aliment costs.

After getting accustomed a 'blank canvas' by management, they accept appear up with their new Superquadro engine, so alleged because of its massively over-square bore and achievement ratio. In accomplishing so they accept accomplished a new exciting anniversary for a accumulation twin-cylinder engine with Ducati claiming 195hp and 98.1 lb-ft (13.5kgm) of torque. Such a huge ability achievement will be tailored to the accession with assorted selectable benumbed modes and aloft account internals accept been pushed out to 24,000km. Alone Fabio Taglioni’s 90° L-twin agreement and Desmodromic valve ascendancy accept been retained from antecedent engines. Everything abroad is new.

User-friendly Benumbed Modes that bear that ability adapted to the rider’s appearance and environment. Its architectonics has enabled a abolitionist abridgement in all-embracing car weight and, added anecdotic Ducati’s connected following of achievement perfection, aloft casework accept been continued to 24,000km (15,000 miles).

With the engine advised to be a absolutely fatigued affiliate of the chassis, its architectonics has been absolutely re-calculated to accommodate the best accessible car architectonics for layout, weight administration and strength.

The cylinders, which abide at 90° to anniversary other, accept been rotated backwards about the crankcases by a added 6°, until the foreground butt is 21° from horizontal. This has enabled the engine to be positioned 32mm added assiduously for bigger foreground / rear weight administration in accession to altogether accession the butt arch adapter credibility for the 1199 Panigale’s monocoque frame.

The crankcases, which are exhaustion die-cast application Vacural? technology to ensure optimal weight saving, connected bank array and added strength, aswell absorb in their anatomy the alien water-jacket of the “cylinder”, eliminating the jointing face that acclimated to abide at the abject of the cylinders. Instead, the Superquadro has abstracted nikasil-coated aluminium “wet-liners” amid into the acme of the crankcase apertures. This architecture enables defended acclimation of the butt arch anon to the crankcase, bigger sealing and added calefaction amusement from the attenuate cylinder-liners anon into the surrounding coolant.

The primary-drive casing, clamp case and alien cover, sump and cam covers are all casting in magnesium alloy, ensuring a failing engine admitting its added backbone as an basic allotment of the chassis.

In accession to butt position, the crankcases now use carapace capital bearings for the crankshaft, ahead alone acclimated by Ducati on the Desmosedici RR engine. Removing the roller bearings has enabled an access in bore of the crank journals for added acerbity and an access the crankcase breadth about the capital address breadth for bigger backbone in band with the Superquadro’s acute ability output. The carapace bearings are force-fed oil from centralized drillings aural the capital address pillars to accumulate the new crankshaft able-bodied anointed and is bound scavenged aback into the sump with the addition of a new Ducati feature, a awful able MotoGP-style exhaustion pump.

The pump is apprenticed by the capital oil pump shaft and finer maintains connected exhaustion in the crankcase breadth beneath the pistons, abbreviation atmospheric attrition during the down-stroke of the agent and authoritative the centralized “breathing” of the engine.

In artful the optimum agreement to accomplish the next big footfall advanced in ability achievement for the L-twin engine, Ducati and Ducati Corse engineers added engine acceleration and added breathability with the absurd bore and achievement of 112mm x 60.8mm. The acute abstraction of ability and ridability resulted in an achievement of 195hp @ 10,750rpm and 98.1 lb-ft (13.5kgm) @ 9,000rpm. The new bore and achievement acclimation of 1.84:1 finer increases rpm with the ultra-short achievement of the crankshaft and increases the butt breadth to accredit added sanitary valves diameters. Basin valves accept added from 43.5 to 46.8mm and bankrupt valves from 34.5 to 38.2mm. With such ample basin valves operating at college rpm, the acute inertial armament accept been controlled by application titanium instead of steel, a band-aid alone ahead acclimated on abounding “R” models. The new reversing valve are actuated by racing-derived rocker arms, 'super-finished' for bargain abrasion and fatigue and again coated in polymeric-like carbon (PLC), a activity originally developed for the aerospace industry.

The race-derived Superquadro pistons accept a characteristic double-ribbed undercrown to accomplish top backbone and bargain abrasion by application basal agent bank apparent area. Application technology developed by Ducati Corse, the architecture enables reliable operation of the 112mm bore pistons if assuming at top rpm. The bigger volumetric ability of the added basin butterfly valve diameters is added capitalised on by accretion the egg-shaped burke physique ambit from an agnate bore of 63.9 to a massive and highflowing 67.5mm. The Ride-by-Wire burke bodies augment air beyond accompanying injectors per cylinder, one positioned beneath the butterfly for added adaptability and one aloft for absolute power.

With such added “breathing”, the claiming for the Superquadro’s Architecture Engineers was to affairs performance-optimised ammunition mapping for a smoother cycle-to-cycle engine operation, after compromising emissions. To accomplish this, Ducati alien a accessory air acclimation that completes the oxidisation of unburned hydrocarbons and finer reduces HC and CO levels. The acclimation is activated if the engine ECU recognises specific altitude in the engine’s operation via the lambda and burke aperture sensors. It again opens a valve enabling a breeze of apple-pie air from the capital airbox to a reed valve anchored in anniversary butt head, which enables one-way breeze into an air arcade departure into the bankrupt anchorage abutting to the bankrupt valve. Entering the hottest point of the bankrupt gasses, the beginning allegation of air enhances the bake environment, eliminating any unburned ammunition that escapes during the bankrupt aeon beneath assertive conditions.

With such an acute engine, never afore has Ducati's different Desmodromic acclimation been so awfully important. With the top engine speeds at which the Superquadro operates accumulated with such ample valves, it would be absurd for the valve’s rocker-arm to chase the abrupt cease contour of the cam affiliate application accustomed valve cease springs. The Desmo acclimation actuates valve cease mechanically with the aforementioned acclimation and accurateness as it opens, enabling abrupt cam profiles, abolitionist cam timings, ample valves and top operating speeds. This acclimation is acclimated on every individual Ducati motorcycle and is consistently accurate on Ducati Corse’s World Superbikes and Desmosedici MotoGP bikes.

Controlling such ample valves with the absolute Desmodromic acclimation aswell led engineers to alter the aboriginal belt-drive concept, acclimated aback the addition of the Ducati Pantah in 1979, with a accumulated alternation and gear-drive arrangement. The accepted bush-type alternation runs from the crankshaft to the butt arch area a individual sprocket positioned amid basin and bankrupt camshafts, is absorbed back-to-back to a accessory caster army on its own short, committed shaft. The absorbed accessory meshes anon with apparatus on the ends of both the basin and bankrupt camshafts, which are aswell advised with +/- position acclimation for ultraprecise cam-calibration. The cam chain, therefore, provides awful able point-to-point drive avenue and, tensioned automatically, provides connected believability and added abbreviation the amount of accepted maintenance.

On the end of anniversary bankrupt cam drive accessory is a centrifugal flyweight which retracts at speeds beneath tickover to circle a “protrusion” from the concentric breadth of the cam, appropriately creating acceptable basin valve lift to act as a de-compressor. This able accessory enables the Superquadro engine to be started calmly after application a beyond array and amateur motor, which has bargain all-embracing car weight by about 3.3kg (7.3lb). If the engine starts and the camshafts activate to circle at tick-over speed, the centrifugal flyweight flicks out, abandoning the “protrusion” aback into the cam and acceptance complete valve cease for abounding compression. This avant-garde affection added underlines the lengths to which designers and engineers accept formed calm in the committed following of weight-saving.

Ducati’s engineers aswell capitalised on the befalling of the “blank canvas” activity to access dimensionS amid the centres of the six-speed gearbox shafts, enabling beyond diameter, stronger apparatus to address the added ability output. New for a top-of-the-range Ducati Superbike is a “wet”, oil-bath clutch. Based actual carefully on the architecture of the Multistrada and Diavel components, the clamp accumulation appearance a “slipper” activity and a accelerating self-servo apparatus that compresses the abrasion plates if beneath drive from the engine. While acceptable frictional efficiency, this aswell after-effects in a rider-friendly ablaze clamp batten “feel” at the handlebar. Conversely, if the drive force is antipodal (over-run), the apparatus reduces burden on the abrasion plates, enabling a accurate antagonism “slipper” action, abbreviation the destabilizing aftereffect of the rear-end beneath advancing down-shifting and accommodate a abundant smoother activity if closing the burke or down-shifting beneath accustomed benumbed conditions.

The Superquadro is the a lot of able twin-cylinder accumulation engine on the planet and is destined to ability the new Ducati 1199 Panigale.