INTERNAL COMBUSTION ENGINE Russian patent published in 2001 - IPC

FIELD: mechanical engineering; multiple-cylinder diesel engines for road vehicles. SUBSTANCE: proposed internal combustion engine has intake device consisting or receiver 1 with separate intake branch pipes 2, 3, 4, 5 which are connected with cylinder head are placed in communication with separate cylinders by means of intake valves and air cleaner 8. Space A of receiver 1 and space "Б" of air cleaner 8 communicate through branched air duct 11 which has two intake branch pipes 12 and 13 and two outlet branch pipes 14 and 15 united by common pipeline 16. Free dynamic cuts 17, 18, 19, 20 of branch pipes 12, 13, 14, 15, respectively, are arranged in spaces A and "Б" in optimum manner from point of view of acoustics. EFFECT: provision of compact intake device with improved acoustic effectiveness. 4 cl, 9 dwg