| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas engine that can smoothly switch between stoichiometric operation and lean operation, a gas heat pump device and a cogeneration device using such the gas engine, and a gas engine control method. <P>SOLUTION: The gas engine 1 conducts the stoichiometric operation at a high load and the lean operation at a mid or low load. A valve 21 which supplies mixture of air and fuel gas to the gas engine 1 is provided with a stoichiometric operation range (a) with small opening, a lean operation range (b) with large opening, and a switching operation range (c) in between formed on one proportional control valve to conduct the stoichiometric operation, switching from stoichiometric operation to lean operation, lean operation, and switching from lean operation to stoichiometric operation. <P>COPYRIGHT: (C)2013,JPO&INPIT |
