Patent ID: 11898524
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A fuel delivery system, the system comprising:
a fuel pump fluidly connected to a fuel tank, the fuel pump configured to direct a fuel from the fuel tank to be used by an internal combustion engine;
a bidirectional purge component fluidly connected to the fuel pump, the bidirectional purge component comprising:
an inlet configured to receive the fuel from the fuel pump;
an outlet configured to:
direct the fuel out of the bidirectional purge component to the internal combustion engine during a fuel delivery operation; and
receive the fuel into the bidirectional purge component during a purge operation; and

a purge outlet fluidically connected to a tank, the purge outlet configured to direct the fuel entering the inlet or outlet during the purge operation to the tank; and

a pressure regulator fluidically connected to the outlet of the bidirectional purge component, the pressure regulator configured to maintain a pressure of the fuel below a predetermined pressure; and
a differential pressure source fluidically connected to the bidirectional purge component, the differential pressure source providing a differential pressure across the bidirectional purge component to cause the fuel to move into the inlet of the bidirectional purge component or the outlet of the bidirectional purge component during the purge operation.