Patent ID: 6408809
Filing Date: 2002-06-25
Classification: F02B,Y02T

Abstract:
A V-type, multi-cylinder, internal combustion engine comprised of a cylinder head, cylinder block arrangement consisting of a pair of angularly disposed cylinder banks with intake ports disposed adjacent a valley defined between said cylinder banks, and an induction system for delivering at least an air charge to said intake ports, said induction system being comprised of a single surge tank disposed in substantial part in said valley and having an air inlet through which an air charge is delivered to said surge tank, a plurality of curvilinear intake pipes, each extending from a respective of said intake ports into said surge tank, each of said curvilinear intake pipes having a low speed inlet opening in said surge tank at its end remote from the served intake port and a valved high speed inlet opening in said surge tank spaced a lesser distance from the served intake port to provide a substantially lesser flow length from said surge tank to the served intake port when said valved high speed inlet opening is opened, at least said valved high speed inlet opening facing away from said valley into said surge tank.