GAS ENGINE

摘要

Disclosed is a gas engine (10) provided with a power generator (16) coupled to an output shaft, an air intake passage (18) to which diluted methane-containing gas (VAM gas) for ventilation discharged from a coal mine is supplied, and gas mixing units (54a to 54d) for mixing high concentration methane-containing gas (CMM gas) provided in the air intake passage (18), wherein the diluted methane-containing gas and the high concentration methane-containing gas are mixed, and the mixed gas is supplied to and burned in a combustion chamber. Mixing ratio adjustment devices (26, 28) for adjusting the mixing ratio between the diluted methane-containing gas and the atmosphere are provided in the air intake passage upstream of a supercharger (30) provided in the air intake passage upstream of the gas mixing units, so that the temperature or the flow rate of intake gas introduced to the supercharger (30) is controlled within a predetermined range by an air intake control means (90A).