Introduction to DCEC Cummins B Series Power Generation Engine
by Starlight Generator dieselgeneratortechStarlight company is a
diesel generator manufacturer, we are not only have our own brand Starlight
generator set, but also cooperate with Cummins. In 2008, we have satrted a good
cooperation with Cummins, and became its OEM supporting factories and technology
centers, has laid a solid foundation to open up the international market. In
this article, Starlight company mainly writes about the maintenance and
introduction of DCEC Cummins B series diesel engine.
DCEC Cummins B series
diesel engine has a higher popularity in the international market. With
turbocharged, air cooled turbocharged as the basic model, it has eight
characteristics: reliable, durable, emission and noise meet American
regulations, advanced performance indicators, wide range of applications, good
applicability, low cost, easy maintenance and repair.
Main
performance parameters of Cummins B series engines
4 cylinder and 6
cylinder engine power range: automobile use( 120~210HP), engineering
machinery(80~180HP), generator set ( 120~180HP/50HZ), marine use(120~120HP).
The maximum speed of the
turbocharger rotor is 13000 rpm. All parts are dynamically balanced, and the
position of each part must be marked and unchangeable. Generally, the
disassembly should be carried out by professionals, and the assembly should be
carried out according to the original marked position.
The axial clearance of
turbocharger turbine rotor is 0.026-0.076mm and the radial clearance is
0.30-0.46mm. The turbine shaft is not allowed to bump and keep clean.
B series diesel engine
structural characteristics
Reasonable strength,
compact structure, simple, less variety and quantity of spare parts, light
weight, high efficiency and energy saving.
A.Use the design of
combining several parts, this reduces parts quality, the universality of parts
is increased and many complex parts are omitted. For example, pump shell, oil
pump shell, water pump intake pipe and oil cooler shell. All these parts are
combined in Cylinder Block. Intake manifold, thermostat seat, cooling water
small circulation pipe, fuel filter seat are assembled in cylinder head.
B.Many aluminum castings
and stampings, so that weight is light. For example, aluminium castings include
gear chamber, flywheel housing, intake pipe cover, valve chamber cover, oil
cooler, etc. Stamping parts includes oil pan, tappet chamber cover, gear
chamber cover, etc.
C.As far as possible to
reduce quantity and variety of parts, for example, the total number of gears in
the gear room is 6 (including three gears of the driving oil pump and the air
compressor). The cooling piston is made of plastic nozzles , which cannot be
simplified further.
D.Widely use light and
simple accessory assembly with high versatility.
E.Spare size of key
parts have more than needed, and adequate strength reserve.
F.In order to meet the
needs of multi-purpose and matching, design a large number of selected parts.
For example, the refueling port can be set at the top, front and side; There
are three types of oil pan: front oil tank, middle oil tank and back oil tank;
Oil gauge can be set in front, middle and rear position; Can choose to install
air compressors, hydraulic pumps and air conditioners, cryogenic starter and
some kinds of high pressure oil pump.
Usage and maintenance
specification
A.Cleaning of air. Must
guarantee air filter normally working
when the diesel engine is running, air intake of diesel engine must be filtered
strictly, 99% pure air and air filter should work normally.The specifications
of filter element should meet the requirements of 6BT diesel engine.Can not be
replaced by other filter elements. Not to leak short circuit, air intake
blockage.
B.Cleaning of fuel
requirements. If the fuel contains fine and hard impurities, it is easy to wear
the plunger and cam disc of the oil pump and make them invalid. Or plug the
injector. Some can also enter the cylinder hole through the injector to accelerate
the wear of cylinder barrel and piston ring. If the fuel contains water or
corrosive impurities, it will also lead to the rust of the plunger, cam disc
and other important parts, or even jam, and twist off the pump shaft.
C.Cleaning of coolant
liquid. The cooling fluid used in the B series diesel engine is antifreeze and
antirust fluid.In the winter of low temperature, it is not necessary to drain
water every day. The replacement period is 2 years.
D.If it contains other
chemical impurities and scales in the water jacket, it will also lead to poor
heat dissipation, poor cooling effect and engine failure.
E.Check oil level of
diesel engine. When checking oil level, the engine must be placed horizontally
to ensure that the measured value is accurate. The correct reading can be
obtained only when the engine is down. Wait for at least 15 minutes after the
engine shuts down before starting to check the oil level. This period of time
allows the oil to flow back to the oil pan.
F.Check coolant liquid level.
Do not open the pressure cap from the hot engine. The pressure cap shall not be
opened until the coolant temperature drops below 50 degrees C (120 degrees F).
Otherwise, high temperature coolant or steam ejection may cause personal
injury.
In a word, the
cleanliness of oil, water and gas is an important factor for prolonging the
life of DCEC Cummins B series diesel engines, which must be paid enough
attention to.
Starlight company
Cummins series diesel generator set is powered by Cummins diesel engine, during
the time of 2010 to 2017, Starlight series Cummins generator set got optimum
outstanding achievement. Starlight company has a group of professional sales elites
and technicians, we believe we can give you most professional guidance and
reply for your question.
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Created on May 17th 2019 02:45. Viewed 418 times.