6D16 Used Fuel Injection Pump For Excavator HD1430 - 3 ME440455
101608 - 6353
Specification
| Car name: Fuel Injection Pump | Model Number: 6D16 |
| Condition: Used | Engine type: Diesel |
| Application: Excavator | Part code: 101608 - 6353 |
| Cooling: Water cooling | Injection: Electric |
Description
Functional Requirements of An Injection System
i. Accurate metering of the fuel injected per cycle: The quantity
of the fuel metered should vary to met changing speed and load
requirements of the engine.
ii. Timing the injection of the fuel correctly in the cycle: to
obtain maximum power ensuring fuel economy and clean burning.
iii. Proper control of rate of injection: The desired heat release
pattern is achieved during combustion
iv. Proper atomization of fuel into very fine droplets.
v. Proper spray pattern to ensure rapid mixing of fuel and air.
vi. Uniform distribution of fuel droplets throughout the combustion
chamber.
vii.To supply equal quantities of metered fuel to all cylinders
case of multi cylinder engines.
viii. No lag during beginning and end of injection i.e., to
eliminate dribbling of fuel droplets into the cylinder
Classification of Injection Systems.A fuel-injection system is
required to inject and atomize fuel in to the cylinder of CI
engines.
For producing the required pressure for atomizing the fuel either
air or a mechanical means is used.
Thus the injection systems can be classified as:Air injector system
Solid injection systems
In this system the liquid fuel is injected directly into the
combustion chamber without the aid of compressed air. Solid
injection systems can be classified into four types.
1. Individual pump and nozzle system
2. Unit injector system
3. Common rail system
4. Distributor system
Components of Fuel Injection System
Fuel tank
Fuel filters: to prevent dust and abrasive particles from entering
the pump and injectors thereby minimizing the wear and tear of the
components.
Fuel feed pump: to supply fuel from the main fuel tank to the
injection system.
Injection pump: to meter and pressurize the fuel for injection,
Governor: to ensure that the amount of fuel injected is in
accordance with variation in load.
Injector: to take the fuel from the p p um and distribute it in the
combustion chamber by atomizing it into fine droplets.
