Cylinder fuel injection type spark ignition internal- combustion engine

Abstract

Abstract PURPOSE:To fire reliably by providing an ignition plug equipped with a fuel injection nozzle having two fuel injection ports for injecting fuel in different directions such that a discharge gap is positioned in a region confined by main fuel flows injected through both ports. CONSTITUTION:When applying in a sub-chamber type internal-combustion engine, a fuel injection nozzle 14 having two fuel injection ports 15a, 15b at the tip is mounted in a nozzle fixing hole 13 made in the cylinder head 1 to open toward the ceiling section of a vortex chamber 7 communicating through a hole 12 with the combustion chamber. Each port 15a, 15b is made to inject liquid fuel through the injection hole 21 into the vortex chamber 7 while traversing the suction spiral flow (S). An ignition plug 17 is mounted on a plug fixing hole 16 formed in the cylinder head 1, such that the spark discharge gap 20 is positioned in the region confined by two main fuel flows (A), (B).

Inventors

• 👤 Yasuo Sato
• 👤 康夫 佐藤
• 👤 Hideshi Tanaka
• 👤 英志 田中
• 👤 Junichi Kudo
• 👤 淳一 工藤

Bibliographic Details