Metering And Distributing Fuel Pump Cylinder Assembly

A metering and distributing fuel pump cylinder assembly is a component of a fuel injection system in an internal combustion engine. It is responsible for accurately measuring and distributing the right amount of fuel to each cylinder of the engine.

The assembly consists of several key components, including:

1. Metering Plunger: This is a precision-machined plunger that moves up and down inside the cylinder assembly. It is responsible for metering the fuel and controlling the amount of fuel delivered to each cylinder.

2. Distributor Rotor: The distributor rotor is connected to the metering plunger and rotates as the engine runs. It distributes the metered fuel to the appropriate fuel injectors or fuel lines leading to each cylinder.

3. Fuel Inlet and Outlet Ports: The assembly has fuel inlet and outlet ports that allow fuel to enter and exit the cylinder assembly. The fuel is typically supplied from the fuel tank through a fuel line.

4. Pressure Relief Valve: The pressure relief valve is a safety feature that prevents excessive pressure build-up within the cylinder assembly. It opens to release excess fuel pressure and maintain optimal operating conditions.

5. Seals and O-rings: Various seals and O-rings are used to ensure proper sealing and prevent fuel leaks within the assembly.

Overall, the metering and distributing fuel pump cylinder assembly plays a crucial role in delivering the right amount of fuel to each cylinder of the engine, ensuring efficient combustion and optimal engine performance.