Intake pipe for a combustion engine

An intake pipe for a combustion engine, comprising

• a housing (1) having a feed (2) for compressed air,
• a heat exchanger (8), which is arranged within a main duct (4) in the housing (1) and through which the air can flow for heat exchange with a fluid, and
• a bypass duct (5), which is separated from the main duct (4) at least sectionwise and has at least one control element (7) to enable the air fed in to bypass the heat exchanger (8) in an adjustable manner,
• wherein
• an engine-side end of the bypass duct (5) is at a short distance from an opening (11) of an inlet valve (10) of the combustion engine, which distance is still relevant to the flow wherein the distance is no more than about seven times a diameter of the inlet valve (10), wherein a flow cross section of the bypass duct (5) is no less than about 10% of a flow cross section of the main duct (4), and wherein the flow cross section of the bypass duct (5) is no more than about 60% of a flow cross section of the main duct (4), and further wherein the control element (7) is formed as a double flap (7a, 7b) wherein a first flap (7a) of the double flap is positioned at an angle from a second flap of the double flap of less than 90°, and wherein the double flap is movable between a part load position wherein the first flap closes the main duct and the second flap opens the bypass duct, and a full load position wherein the first flap opens the main duct and the second flap closes the bypass duct.