Which fuel injection system is designed for applications with relatively broad speed requirements?

The distributor fuel system is designed for applications with a relatively broad range of speed requirements due to its ability to manage the distribution of fuel to multiple cylinders in an internal combustion engine efficiently. This system operates by using a mechanical distributor to regulate fuel delivery based on engine speed and load demands, ensuring that each cylinder receives the appropriate amount of fuel for optimal combustion.

This adaptability makes the distributor fuel system particularly effective in vehicles and machinery that experience varied operational speeds, as it can adjust the fuel supply dynamically. Its design allows for the synchronization of fuel injection events, which is crucial in applications where the engine might be subjected to a wide array of RPMs during operation.

In contrast, the other fuel injection systems listed typically excel in more specialized applications rather than the broad versatility required for varying engine speeds. For instance, electrical fuel injection systems may not have the same level of adaptability in terms of mechanical fuel delivery, while the port and helix injection pump or Cummins pressure time pump are generally better suited to specific performance requirements rather than broad speed ranges.