Method and apparatus for improving the firedamp safety of an internal combustion engine for underground operation

摘要

A method and apparatus for improving the firedamp safety of an assembly for use in underground mine workings, the assembly including an internal combustion engine and an absorption-type refrigeration machine having a refrigerant circuit for generation of a refrigerated fluid stream, such improvement being effected by the provision of heat exchange components connected for supplying operating thermal energy to the refrigeration machine by passing the hot exhaust gases generated by the internal combustion engine through the refrigeration machine, and for cooling the exhaust gases after they exit the refrigeration machine by transferring heat therefrom to the refrigerated fluid stream.