Abstract: This multi-cylinder engine intake structure is provided with a fresh air distribution chamber into which a plurality of fresh air distribution openings communicating with the individual intake ports are opened, and a gas collection chamber. The gas collection chamber includes a communication region into which a first communication opening communicating with the fresh air distribution chamber is opened, a first mixture region into which an air inlet and an EGR gas inlet are opened and which is positioned upstream of the communication region in a flow direction of a mixture gas of air and EGR gas, and a second mixture region positioned downstream of the communication region in the flow direction of the mixture gas.

Abstract: This multi-cylinder engine intake structure is provided with a fresh air distribution chamber 20 into which a plurality of fresh air distribution openings 25 communicating with the individual intake ports 12 are opened, and a gas collection chamber 30. The gas collection chamber 30 includes a communication region 30B into which a first communication opening 7a communicating with the fresh air distribution chamber 20 is opened, a first mixture region 30A into which an air inlet 31a and an EGR gas inlet 32a are opened and which is positioned upstream of the communication region 30B in a flow direction of a mixture gas M of air A and EGR gas R, and a second mixture region 30C positioned downstream of the communication region 30B in the flow direction of the mixture gas M.