Automotive hydrogen supply system that provides a stable hydrogen supply to the stack using high/low-pressure regulators and a heat exchanger
This technology relates to an automotive hydrogen supply system that regulates high-pressure hydrogen from a fuel tank, supplies it to a stack via an ejector, and performs heat exchange with coolant.
In existing fuel cell vehicles, it has been difficult to simultaneously and stably manage pressure regulation and stack temperature.
To address this, the technology uses high/low-pressure regulators and a solenoid valve to control pressure, and a heat exchanger and control unit to regulate coolant flow, ensuring a stable supply of hydrogen to the stack.
Key Features:
- High-pressure regulator that adjusts high-pressure hydrogen from the fuel tank to a constant pressure, and a low-pressure regulator that adjusts it to the stack supply pressure
- Solenoid valve installed between the high-pressure and low-pressure regulators to control hydrogen flow
- Ejector that supplies pressure-regulated hydrogen to the stack, and a heat exchanger that facilitates heat exchange between hydrogen and coolant between the fuel tank and the ejector
- Hydrogen supply system including a control unit that regulates the amount of coolant supplied to the heat exchanger
