S6k Diesel Engine Used Fuel Injection Pump For Excavator E320c
E320d
Specification
| Part Name: Fuel pump | Pump code: 101062 - 8520 |
| Category: Spare parts | cylinders number: 6 |
| Condition: Original Used | Size: Standard |
| Type: Direct injection | Test staus: normal |
| Material: Metal | Part number: 101609 - 9360 |
Description
What is the fuel pump and What role does it play in engine?
A fuel pump is a very important gadget on a car or the other
internal combustion engine device. It's mainly function to supply
fuel away from the engine to the other parts through a pressure.
There are two types of fuel pumps. One is mechanical fuel pump and
the other is electric fuel pump. Mechanical fuel pumps have
regularly fixed outside the fuel tan.
How does the fuel pump work?
A mechanical fuel pump is driven by the camshaft , or by a special
shaft driven by the crankshaft . As the shaft turns, a cam passes
under a pivoted lever and forces it up at one end. The other end of
the lever, which is linked loosely to a rubber diaphragm forming
the floor of a chamber in the pump, goes down and pulls the
diaphragm with it. When the lever pulls the diaphragm down, it
creates suction that draws fuel along the fuel pipe into the pump
through a one-way valve. As the revolving cam turns further, so
that it no longer presses on the lever, the lever is moved back by
a return spring , relaxing its pull on the diaphragm.
The loosely linked lever does not push the diaphragm up, but there
is a return spring that pushes against it. The diaphragm can move
up only by expelling petrol from the chamber. The petrol cannot go
back through the first one-way valve, so it goes out through
another one leading to the carburettor.
Precautions for using oil pump
A high quality, OEM fuel pump can last indefinitely. However, as
with any electro-mechanical component, a fuel pump will eventually
degrade and fail. When the fuel pump used last a long time,and the
engine begin to appear black smoke one after another so that the
engnine can not went down. If it fails to produce adequate pressure
or completely quits operating, and it will need to be replaced.
