Back to results
US 2026/0112666 A1Published application
Fuel cell system
AssigneeAisan Kogyo Kabushiki Kaisha
InventorDaisaku ASANUMA
Life of this patent
Estimating the term…
Abstract
A fuel cell system in one aspect of the disclosure includes a first pressure sensor for measuring the pressure in a hydrogen gas supply passage between a hydrogen absorbing alloy canister and an injector, and a control unit configured to control an exhaust-drain valve. When a measured value of the first pressure sensor is equal to or less than a predetermined pressure, the control unit controls the exhaust-drain valve to increase the number of opening-closing operations per unit time more than when the measured value of the first pressure sensor is higher than the predetermined pressure.
Claims4
A fuel cell system comprising:
- a fuel cell;
- a hydrogen gas supply passage for supplying hydrogen gas to the fuel cell;
- a hydrogen storage container filled with hydrogen absorbing alloy and configured to release the hydrogen gas to the hydrogen gas supply passage;
- a hydrogen gas supply device placed in the hydrogen gas supply passage and configured to supply the hydrogen gas released from the hydrogen storage container to the fuel cell;
- a hydrogen off-gas exhaust passage for exhausting hydrogen off-gas exhausted from the fuel cell to outside of the fuel cell system;
- and
- an exhaust control valve placed in the hydrogen off-gas exhaust passage and configured to control exhaust of the hydrogen off-gas to the outside,
- wherein the fuel cell system further comprises:
- at least one of a pressure measuring unit for measuring a pressure in the hydrogen gas supply passage between the hydrogen storage container and the hydrogen supply device and a container temperature measuring unit for measuring a temperature of the hydrogen storage container;
- and
- a control unit configured to control the exhaust control valve,
- wherein when a measured value of the pressure measuring unit is equal to or less than a predetermined pressure, the control unit controls the exhaust control valve to increase the number of opening-closing operations per unit time more than when the measured value of the pressure measuring unit is higher than the predetermined pressure, and/or
- when a measured value of the container temperature measuring unit is equal to or less than a predetermined container temperature, the control unit controls the exhaust control valve to increase the number of opening-closing operations per unit time more than when the measured value of the container temperature measuring unit is higher than the predetermined container temperature.
10 more elements
Dependencies are inferred from the claim text.