| 摘要 |
<p>A fuel supply device applied to an internal combustion engine (1) which can be operated by gasoline and CNG, wherein the fuel supply device is provided with: a fuel supply device (18) for separately supplying the gasoline and the CNG to the internal combustion engine (1); and exhaust gas purifying catalysts (11, 12) for purifying the exhaust gas discharged from the internal combustion engine (1). Whether or not the exhaust gas purifying performance of the exhaust gas purifying catalysts (11, 12) is degraded is determined, and when it is determined that the exhaust gas purifying performance is degraded, the operation of the fuel supply device (18) is controlled so that the CNG is supplied to the internal combustion engine (1).</p> |
