Loading patent…
AssigneeKubota Corporation
InventorsHiroki Kuwayama, Takahiro Yamazaki, Yutaka Ishigaki, Hideyuki Koyama, Manabu Miyazaki, Katsunori Ikemachi, Yoshinori Tanaka
Estimating the term…
A subchamber type combustion chamber for a diesel engine, which reduces fuel consumption rate and combustion noise. To achieve the object, a subchamber type combustion chamber is communicated with a main combustion chamber through a nozzle hole, a fuel injection nozzle faces into the subchamber, and a glow plug extends into the subchamber. A heat generating portion of the glow plug includes a rod-shaped portion and a projecting portion projecting from an end of the rod-shaped portion. The projecting portion is provided with a convex curved surface projecting from a circular peripheral edge at the end of the rod-shaped portion while the convex curved surface is reduced in diameter. The percentage of value P/D obtained by dividing projection dimension P of the projecting portion from the end of the rod-shaped portion by diameter dimension D at the end of the rod-shaped portion is 3% to 23%.
A subchamber type combustion chamber for a diesel engine in which a subchamber is communicated with a main combustion chamber through a nozzle hole, a fuel injection nozzle faces into the subchamber, and a glow plug extends into the subchamber,
Dependencies are inferred from the claim text.