Patent ID: 11898506
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An internal combustion engine, comprising:
a combustion cylinder;
an injector fluidly connected to the combustion cylinder, the injector being configured to receive a fuel mixture via a fuel line, the fuel mixture comprising a first fuel and a second fuel;
a first fuel pump fluidly connected to a first fuel tank, the first fuel pump being configured to direct the first fuel from the first fuel tank to a mixing valve fluidly connected to the fuel line;
a second fuel pump fluidly connected to a second fuel tank, the second fuel pump being configured to direct the second fuel from the second fuel tank to the mixing valve;
a first water sensor configured to detect a volume of water in the second fuel stored in the second fuel tank and output a first water volume signal;
a second water sensor configured to detect a volume of water in an output of the mixing valve and output a second water volume signal; and
a controller configured to:
receive a power signal indicating a desired power level of the internal combustion engine;
determine, based on the desired power level, a default ratio of the second fuel to the first fuel, a flowrate of the first fuel, and a flowrate of the second fuel;
determine a concentration of water in the second fuel stored in the second fuel tank based on the first water volume signal;
modify the default ratio, the flowrate of the first fuel, and the flowrate of the second fuel based on the concentration of the water in the second fuel;
determine a concentration of water in the output of the mixing valve; and
modify the flowrate of the first fuel and the second fuel based on the determination of the concentration of water in the output of the mixing valve.