Guiding and mixing flow channel of low-concentration gas engine

The invention provides a guiding and mixing flow channel of a low-concentration gas engine, and relates to the field of engines. The guiding and mixing flow channel of the low-concentration gas engine comprises a connecting pipe, the rear surface of the connecting pipe is fixedly connected with a guiding type mixer shell, and the right inner wall of the guiding type mixer shell is fixedly connected with a guiding type mixer inner sleeve; an annular cavity is formed between the outer surface of the guide-shaped mixer inner sleeve and the guide-shaped mixer shell, an annular channel opening is formed between the left surface of the guide-shaped mixer inner sleeve and the left surface of the connecting pipe, and an inner cavity is formed in the guide-shaped mixer inner sleeve. Through the guiding and mixing flow channel, the problem that gas inlet in the gas inlet flow channel of the low-concentration gas engine blocks air inlet is solved, the effective adjusting range of an air valve in the gas inlet flow chann