Patent ID: 6508218
Filing Date: 2003-01-21
Classification: F02B,F02M

Abstract:
An intake system for a horizontally opposed type internal combustion engine, the engine including a first bank and a second bank horizontally disposed opposite to each other with a crankshaft therebetween, said intake system comprising:first and second intake ports, said first and second intake ports being provided at head portions of the first and second banks; a side wall; said side wall being provided on the crankshaft side of an air cleaner of the engine, said side wall being disposed adjacent to the crankshaft and being provided with first and second intake distribution ports corresponding to said first and second intake ports, said first and second intake distribution ports being arranged horizontally; first and second intake pipes, said first and second intake pipes respectively connecting said first and second intake ports and said first and second intake distribution ports to each other, and being disposed along a top surface or a bottom surface of the engine; and first and second throttle valves for controlling intake quantities in said first and second intake pipes, said throttle valves being provided in respective upstream portions of said first and second intake pipes.