da CUCAI » mercoledì 9 dicembre 2015, 19:21
Temo di aver ragione...vedere qui sotto la Sigla PD cioè Pumpe-Düse: i Common Rail riportano la sigla CR.
Dice che tutti i motori 1422 derivano dai 1896cc.
1.4 R3 TDI PD 51-66kW
Origins All R3 1422 ccm three cylinder engines are derived from the R4 1896 ccm 4 cylinder engine, VW just cut off one 474,1 ccm cylinder.
identification
parts code prefix: 045
engine configuration & engine displacement
inline three-cylinder (R3/I3) Turbocharged Direct Injection (TDI) turbodiesel; 1,422 cubic centimetres (86.8 cu in), bore x stroke: 79.5 by 95.5 millimetres (3.13 in × 3.76 in), stroke ratio: 0.83:1 - undersquare/long-stroke, 474.1 cc per cylinder, compression ratio: 18.0:1 to 19.5:1
cylinder block & crankcase
grey cast iron with bed-plate frame; inner and outer two-part oil sump; die-forged steel cross-plane crankshaft with 120 degree crankpins with four main bearings, simplex roller chain driven balance shaft; Mahle pistons; water:oil cooler
cylinder head & valvetrain
cast aluminium alloy, non-crossflow; two valves per cylinder, 6 valves total, each with two concentric valve springs, bucket tappets with manually adjustable rocker arms for valve clearance; timing belt-driven single overhead camshaft (SOHC)
aspiration
Bosch hot-film air mass meter, cast alloy Siemens-VDO throttle body with electronically controlled 'drive by wire' throttle butterfly valve, cast aluminium alloy intake manifold; Garrett variable turbine geometry (not all models) turbocharger incorporated in exhaust manifold, 2.3 bars (33.4 psi) absolute boost; side-mounted intercooler (SMIC)
fuel system & engine management
low-pressure fuel lift pump, underfloor fuel cooler; Pumpe Düse (PD) high-pressure direct injection (with three camshaft pressurised solenoid operated combustion chamber sited Unit Injectors), Bosch EDC15P+ electronic engine control unit.
Nella terz'ultima riga si legge chiaramente Pumpe Düse... etc.