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| Price | Negotiated |
| MOQ | Negotiable |
| Delivery Time | 5 - 8 work days |
| Brand | Isuzu |
| Place of Origin | Japan |
| Model Number | 4BG1 |
| Packaging Details | Neutral Package or Fumigation Free |
| Payment Terms | D/P, T/T |
| Supply Ability | 3 pieces |
| Condition | Used | Engine model | 4BG1 |
| Place of Origin | Japan | Packaging Details | Neutral Package or Fumigation Free |
| Color | Grey | Excavator model | EX120 - 6 / SK120 - 5 |
| Material | Metal | Model Number | 4BG1 |
| Supply Ability | 3 pieces | Engine type | Diesel |
| Brand Name | Isuzu | Payment Terms | D/P, T/T |
| Price | Negotiated | Delivery Time | 5 - 8 work days |
| Product name | Used Engine Assembly | Quality | High quality |
4BG1 Diesel Used Engine Assembly For Excavator EX120 - 6 SK120 - 5 Water Cooling
Specification
| Car name: Complete Engine | Model Number: 4BG1 | |
| Cylinder stroke: 102 | Cylinder diameter: 93 | |
| Application: Excavator | valve: 8 valve | |
| Cooling: Water cooling | Injection: Direction | |
Description
Diesel Engine Principle and Working Cycle Explained:
Basically,
there
are
two
types
of
diesel
engine
types
-
the
Four
Stroke
and
Two
Stroke.
The
'Diesel
Cycle'
uses
higher
Compression-Ratio.
It
was
named
after
German
engineer
Rudolph
Diesel,
who
invented
and
developed
first
Four-Stroke
diesel
engine.
The four strokes of the diesel cycle are similar to that of a petrol engine. However, the 'Diesel Cycle' considerably defers by the way the fuel system supplies the diesel the engine and ignites it.
A
conventional
internal
combustion
diesel
engine
works
on
'Diesel
Cycle'.
In
the
simple
diesel
engines,
an
injector
injects
diesel
into
the
combustion
chamber
above
the
piston
directly.
The
'Compression-Ignition
engine'
is
also
another
name
for
the
Diesel
engine.
This
is
mainly
because
it
burns
the
diesel
with
hot
and
compressed
air.
The temperature of the air inside the combustion chamber rises to above 400°c to 800°c. This, in turn, ignites the diesel injected into the combustion chamber. Thus, the 'Diesel Cycle' does not use an external mechanism such as a spark-plug to ignite the air-fuel mixture.
Start
A small number use resistive grid heaters in the intake manifold to warm the inlet air until the engine reaches operating temperature. Engine block heaters (electric resistive heaters in the engine block) plugged into the utility grid are often used when an engine is shut down for extended periods (more than an hour) in cold weather to reduce startup time and engine wear.
governor
A vital component of any diesel engine system is the governor, which limits the speed of the engine by controlling the rate of fuel delivery. Unlike a petrol (gasoline) engine, the incoming air is not throttled, so the engine would overspeed if this was not done. Older governors were driven by a gear system from the engine (and thus supplied fuel only linearly with engine speed). Modern electronically-controlled engines achieve this through the electronic control module (ECM) or electronic control unit (ECU) - the engine-mounted "computer".
The ECM/ECU receives an engine speed signal from a sensor and then using its algorithms [1] and look-up calibration tables stored in the ECM/ECU, it controls the amount of fuel and its timing (the "start of injection") through electric or hydraulic actuators to maintain engine speed.
