4M50 Used Fuel Injection Pump For Excavator SY215 - 10 HD820V ME223576
Specification
| Part name | Engine fuel pump |
| Pump code | 0445020029 |
| Pump sensor code | 0928 40064 81723 2065 |
| Condition | Original Used |
| Part number | ME223576 |
| Test staus | Normal |
| Engine Type | Diesel |
| Injection | Electric injection |
Description
How do I install a fuel pump?
Installation Instructions for Fuel Pump Replacement Place the diaphragm spring and then the cup over the center of the pump chamber. Install the diaphragm, gasket and cover and attach with pump screws. Attach the pump to the carburetor or mounting bracket, using the pump mounting screws.
A fuel pump draws petrol out of the tank through a pipe to the carburettor. The pump may be mechanical worked by the engine - or it may be electric, in which case it is usually next to or even inside the fuel tank. Keeping the petrol tank safe For safety, the petrol tank is placed at the opposite end of the car from the engine.
How an electric pump works
Electric fuel pump
An electric pump has a similar diaphragm mechanism; it is worked by a rod that is drawn into a solenoid switch until it opens a set of contacts to turn off the current.
An electric pump has a similar diaphragm-and-valve arrangement, but instead of the camshaft, a solenoid (an electromagnetic switch ) provides the pull on the diaphragm.
The solenoid attracts an iron rod that pulls the diaphragm down, drawing petrol into the chamber.
At the end of its travel the iron rod forces apart a set of contacts, breaking the current to the electromagnet and relaxing the pull on the diaphragm.
When the diaphragm return spring raises the diaphragm, it also pulls the rod away from the contacts; they then close so that the solenoid pulls the rod and diaphragm down again.
What kind of fuel pump does an aircraft use?
There are two types of engine driven fuel pumps used in aircraft jet engines, the Gear type Constant Displacement fuel pumps,and the Piston type Variable Displacement fuel pumps. The operation of the piston type fuel pump is the same with the piston type hydraulic pump described in another page of this web site.
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