MULTICYLINDER INTERNAL COMBUSTION ENGINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; internal combustion engines with injection of fuel into cylinders. SUBSTANCE: proposed four-cylinder four-stroke internal combustion engine contains intake branch pipes opening is gas collecting receiver and union installed coaxially along receiver space and secured on its end face wall, outlet of union being connected to engine air cleaning and fuel feed system. Inlet dynamic cut of union is located in gravity center of gas volume enclosed in receiver space. According to invention, cuts of intake branch pipes opening in receiver space and alternating according to cylinder firing order are arranged at different sides of plane intersection along normal the side wall of receiver and passing through center of gravity of volume of receiver space at a distance of 1/4L from said plane where L is length of receiver chamber. EFFECT: reduced noise, improved filling of cylinders. 3 cl, 2 dwg