| 摘要 |
PURPOSE:To provide the gas combustion control device having a high combustion amount adjusting ratio and a highly stabilized airfuel ratio by a method wherein the air-fuel ratio is controlled to becomes constant by the output of a pressure difference sensor for detecting the pressure difference between an air and a gas passage. CONSTITUTION:The electrically operating pressure difference sensor 4 is provided as a means for detecting the pressure difference between the upstream sides of two throttles 2 and 5 arranged in the air passage and the gas passage, respectively, so that the quantity of a gas is controlled to become constant by a gas quantity adjusting means 7 in response to the output of the pressure difference sensor 4. In this case, when the output of the sensor 4 becomes larger than a predetermined value, the quantity of air is controlled by an air quantity adjusting means 16 in preference to a temperature adjusting circuit 15. Thus, even when the pressure of the gas drops, the air-fuel ratio is corrected so that it is made possible to obtain a stabilized combustion condition at all times. |
