BMW
Media
Information
5/2009
Page 36
This power unit presented with these features for the first time in the new
BMW 730d stands out from its predecessor by even greater power and
performance on lower fuel consumption and emissions. Displacing 3.0 litres, the
engine develops maximum output of 180 kW/245 hp at a speed of 4,000 rpm.
Peak torque of 540 Newton-metres/398 lb-ft, in turn, comes at just 1,750 rpm.
Yet a further most substantial benefit offered by this unique diesel is its unparal-
leled all-round economy, with average fuel consumption and CO2 emissions of
the BMW 530d Gran Turismo remaining far below the usual figures on a vehicle
of this size and with this kind of power.
Optimised combustion reducing raw emissions.
The newly developed crankcase of BMW’s six-cylinder diesel is made of an
ultra-strong aluminium-silicon alloy. The crankshaft made of high-strength steel
is now even stiffer than before in its new layout and configuration. The fuel
injectors positioned in the middle, together with the vertically arranged valves,
ensure a smooth and consistent combustion process and again serve to reduce
raw emissions.
Fuel is supplied by proven third-generation common-rail direct injection
using enhanced piezo-injectors and now operating at a maximum pressure at
1,800
bar.
A final point is that the high-pressure pump, the supply and injection lines, the
rail pressure sensor and the pressure control valve on the new engine have all
been upgraded and improved accordingly over the former generation.
Used for the first time on a six-cylinder diesel engine, the ceramic spark plugs
optimise the engine’s starting qualities in several respects. They also serve to
reduce both fuel consumption and emissions and enhance motoring comfort
while warming up by significantly improving the engine’s acoustics and vibration
behaviour.
Turbocharger with adjustable turbine geometry and
optimised control.
The exhaust gas turbocharger upgraded to a new standard over the previous
unit likewise helps to optimise the qualities and efficiency of the new six-cylinder
diesel. Activated as a function of load conditions and power requirements, the
adjustment of turbine geometry is now controlled with even greater precision.
Modified compressor and turbine rotors give the turbocharger even better
thermodynamic qualities, while an electrical adjuster motor adjusts the turbine
| Categories | BMW 5-Series Manuals, BMW Manuals |
|---|---|
| Tags | BMW 530d, BMW 535i, BMW 550i, BMW F07, BMW Gran Turismo, Brochure and Catalogue |
| Model Year | 2010 |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
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