INTAKE MANIFOLD, ENGINE AND VEHICLE

Provided are an intake manifold (100), an engine (200), and a vehicle (300). A vehicle (300) includes an engine (200). The engine (200) includes an intake manifold (100). The intake manifold (100) includes a cavity (1) and a plurality of fluid branch pipes (2). The cavity (1) is provided with an air inlet end (13). A flow guide portion (11) is formed on the cavity (1), and the flow guide portion (11) is located on a side of the cavity (1) along a first direction. The plurality of fluid branch pipes (2) are all connected to the other side of the cavity (1) along the first direction, and the plurality of fluid branch pipes (2) all communicate with the cavity (1). The flow guide portion (11) is opposite to at least one of the plurality of fluid branch pipes (2) that is adjacent to the air inlet end (13). The cavity (1) forms a vortex area (12) at the flow guide portion (11) and the at least one of the plurality of fluid branch pipes (2) that is adjacent to the air inlet end (13). The vortex area (12) is configured to allow fluid entering from the air inlet end (13) to form a vortex in the vortex area (12).