Patent ID: 6148794
Filing Date: 2000-11-21
Classification: F02B,F02F,F02M,Y02T

Abstract:
An internal combustion engine induction system for delivering a charge to a combustion chamber, three intake ports for delivering a charge to said combustion chamber comprised of a pair of side intake ports and a center intake valve port disposed between said side intake ports, an induction passage for serving said intake ports comprising an atmospheric air inlet section extending from an atmospheric air source towards said combustion chamber, a Siamesed side intake passage having a common inlet opening communicating with the downstream end of said inlet section and a pair of branch portions extending from said common inlet opening, each of said branch portions terminating at a respective one said side intake ports, and a center intake passage section having an inlet end communicating with the downstream end of said air inlet section and terminating at said center intake port, the entire length of said center intake passage section from said inlet end extending generally parallel to a plane defined by said branch portions of said Siamesed side intake passage.