CAT 3066 C6.4 ENGINE FUEL FEED PUMP 5I-7507 105220-5960 FOR EXCAVATOR E320B/PC60-7

PRODUCT DESCRIPTION

Fuel Feed Pump

A fuel feed pump is a crucial component in many internal combustion engines, particularly diesel engines. Its primary function is to deliver fuel from the fuel tank to the engine at the correct pressure and flow rate. Here are some key points about fuel feed pumps:

1. **Purpose**:

The main purpose of a fuel feed pump is to supply fuel to the engine's fuel injection system or carburetor. In diesel engines, it pressurizes the fuel to ensure proper atomization and combustion.

2. **Types**:
- **Mechanical Fuel Feed Pump**: Typically found in older diesel engines, it is driven directly by the engine's camshaft or timing gears.
- **Electric Fuel Feed Pump**: Common in modern diesel engines, especially those with high-pressure fuel injection systems (common rail), these pumps are electrically driven and are often located in or near the fuel tank.

3. **Operation**:
- In mechanical pumps, the rotation of the engine drives a lever or cam that actuates a diaphragm or piston within the pump, creating suction that draws fuel from the tank.
- Electric pumps use an electric motor to generate the necessary pressure to push fuel to the engine. They often incorporate a filter and sometimes a pressure regulator to maintain optimal fuel pressure.

4. **Components**:
- **Inlet**: Where fuel enters the pump from the tank.
- **Diaphragm or Piston**: Moves to create suction or pressure.
- **Outlet**: Where pressurized fuel exits the pump towards the engine.

5. **Importance**:

Proper fuel pressure is critical for engine performance and efficiency. Insufficient fuel pressure can lead to poor engine operation, while excess pressure can cause fuel leaks or damage to engine components.

6. **Maintenance**:
- Regular inspection and replacement of fuel filters are important to prevent debris from reaching and potentially damaging the pump.
- For electric pumps, ensuring the electrical connections are secure and free from corrosion is crucial.

In summary, the fuel feed pump plays a vital role in ensuring that an engine receives the correct amount of fuel at the proper pressure for efficient and reliable operation. Its design and location vary based on the engine type and fuel system configuration.

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