Patent ID: 7150256
Filing Date: 2006-12-19
Classification: F02B,F02M,Y02T

Abstract:
1. An intake device for a multi-cylinder internal combustion engine having a crank shaft and two rows of cylinders aligned substantially in parallel with the crank shaft, the device comprising: two intake collectors respectively provided in the vicinity of the two rows of cylinders; an air supply mechanism connected to the intake collectors to supply air thereto; a group of branch pipes provided in each of the two rows of cylinders, wherein the branch pipes are disposed substantially in parallel with each other and connect the cylinders in the corresponding row with the corresponding intake collector, each of the branch pipes having an opening onto the corresponding intake collector; an auxiliary chamber provided for each of the two rows of cylinders in a space between the two intake collectors, the space including a space between adjacent two branch pipes of the corresponding row; and a communicating port formed between the openings of the adjacent two branch pipes in each of the rows of cylinders and communicating the corresponding auxiliary chamber with the corresponding intake collector.