Patent Number: 6,253,729

Title: Induction control for direct injected engine

Abstract: A direct injected, internal combustion engine combustion chamber configuration that employs a shrouded arrangement for the intake valve seat so as to generate a tumble motion under at least some running conditions. This is accomplished by a shrouding of the intake valve in such a way that the flow direction effects a tumbling motion and also so that the air flow does not adversely affect the flow from the injector nozzle.

Inventors: Suzuki; Yuichi (Iwata, JP), Ochiai; Katsumi (Iwata, JP), Uchiyama; Uichitake (Iwata, JP)

Assignee: Yamaha Hatsudoki Kabushiki Kaisha

International Classification: F02B 31/00 (20060101); F02B 31/08 (20060101); F01L 1/34 (20060101); F02B 75/00 (20060101); F02B 75/12 (20060101); F02B 003/00 ()

Expiration Date: 07/03/2018