| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas supply adapter that is able to improve gas displacement efficiency and enables stable and accurate detection of a gas sensor regardless of air flow.SOLUTION: A gas supply adapter according to the invention comprises: a gas supply port for taking in external air; a gas discharge port for discharging air taken in from the gas supply port; and a gas circulation path connecting the gas supply port and gas discharge port. The gas circulation path includes a main circulation path and a sub-circulation path. The main circulation path has a portion adjacent to the gas contact face of a first gas sensor, which is at least one of gas sensors. The sub-circulation path branches from the main circulation path. Further, the end face of the sub-circulation path is provided so as to face the gas contact face of a second gas sensor, which is at least one of the gas sensors other than the first gas sensor. |
