| 摘要 |
<p>It is described a method for the measure of the air/fuel ratio in an internal combustion engine determining the pressure variations in the engine intake manifold and consequently signaling the opportunity to act in feed-back on the fuel supply to restore said ratio at the desired value. …<??>This method is realized by a device characterized in that it comprises a pressure sensor, means to process the signal from the sensor and a microprocessor to verify if the values processed by said means are comprised or not in a predetermined window, previously stored, and experimentally found on a test engine in condition of regular combustion. If the processed values are out of said window, the microprocessor gives an alarm signal and/or controls directly or indirectly a device varying the air/fuel ratio to restore it into the normal values.</p> |
