Patent ID: 11971142
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A hydrogen supplying device, comprising:
a liquid hydrogen pump configured to pressurize liquid hydrogen stored in a liquid hydrogen tank;
an evaporator configured to convert the liquid hydrogen discharged from the liquid hydrogen pump into hydrogen gas;
a pressure chamber configured to be filled with the hydrogen gas flowing therein from the evaporator and to supply the filled hydrogen gas to a hydrogen engine;
a pump control unit configured to adjust a discharge flow rate of the liquid hydrogen pump, and configured to adjust, based on both a flow rate of hydrogen to be supplied to the hydrogen engine and an actual pressure in the pressure chamber, the discharge flow rate of the liquid hydrogen pump so as to match the actual pressure in the pressure chamber with a target pressure; and
a pressure sensor configured to detect the actual pressure in the pressure chamber,
wherein the pump control unit is further configured to
receive an input from an engine control unit configured to adjust the flow rate of hydrogen to be supplied to the hydrogen engine, the input including one or both of a target flow rate of the hydrogen gas to be supplied to the hydrogen engine and an actual flow rate of hydrogen gas that is detected by a flow rate sensor configured to detect the actual flow rate of the hydrogen gas to be supplied to the hydrogen engine, and
adjust the discharge flow rate of the liquid hydrogen pump based on the one or both of the target flow rate of hydrogen gas and the actual flow rate of the hydrogen gas and also based on the actual pressure in the pressure chamber detected by the pressure sensor.