Title:
COMBUSTION CHAMBER STRUCTURE
Document Type and Number:
Japanese Patent JP2023131833
Kind Code:
A
Abstract:
To improve thermal efficiency by activating combustion.SOLUTION: A combustion chamber structure 100, having a cavity 10 circular in a planar view, recessed downward with respect to a piston top surface 9a, and provided for a direct injection diesel engine 1 where fuel is radially injected from a nozzle 8 at the center of a cylinder ceiling part 11 into the cavity 10 to cause self-ignition, includes a first rising part 102 rising upward from the radial outer end of a bottom face 101 so as to encircle the bottom face 101 of the cavity 10, and a protrusion part 30 provided between the nozzle 8 and the first rising part 102 in the radial direction of the bottom face 101 while extending upward from the bottom face 101 so as to hit fuel spray Fu injected from the nozzle 8 and vertically divide the fuel spray Fu.SELECTED DRAWING: Figure 2
Inventors:
YOSHITOMI KAZUNOBU
Application Number:
JP2022036810A
Publication Date:
September 22, 2023
Filing Date:
March 10, 2022
Export Citation:
Assignee:
HINO MOTORS LTD
International Classes:
F02B23/06; F02F3/26; F16J1/00
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Kouichi Osaka
Yasushi Naito
Yoshiki Kuroki
Kouichi Osaka
Yasushi Naito
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