Title:
直噴式内燃機関の燃焼室構造
Document Type and Number:
Japanese Patent JP7005974
Kind Code:
B2
Abstract:
This combustion chamber structure for a direct injection internal combustion engine is provided with: a cavity 11 formed at the center of a piston top surface 8; and the outer peripheral section 20 of the piston top surface, which is located radially outside the cavity. The outer peripheral section of the piston top surface comprises: a first tapered surface 21 which is connected to a cavity inner wall 30 defining the cavity, is located radially outside the cavity inner wall, and has a first tilt angle θ1 relative to an imaginary plane perpendicular to a piston center axis; and a second tapered surface 22 which is connected to the first tapered surface, is located radially outside the first tapered surface, and has a second tilt angle θ2 relative to the imaginary plane f perpendicular to the piston center axis C. The second tilt angle θ2 of the second tapered surface 22 is greater than the first tilt angle θ1 of the first tapered surface 21.
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Inventors:
Yuta Shimizu
Daisuke Ozawa
Hitoshi Tateishi
Takuya Arai
Daisuke Ozawa
Hitoshi Tateishi
Takuya Arai
Application Number:
JP2017135615A
Publication Date:
January 24, 2022
Filing Date:
July 11, 2017
Export Citation:
Assignee:
Isuzu Motors Limited
International Classes:
F02B23/06; F02F3/26
Domestic Patent References:
| JP2013527360A |
Foreign References:
| WO2015177897A1 | ||||
| US20170096978 | ||||
| WO2007091389A1 |
Attorney, Agent or Firm:
Haruhisa Kinutani
Hiroyuki Pillaryama
Hiroyuki Pillaryama
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