Title:
内燃機関
Document Type and Number:
Japanese Patent JP6467972
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an internal combustion engine capable of reducing smoke and unburnt fuel.SOLUTION: A diesel engine includes a cylinder 3, a piston 23 arranged to freely reciprocate vertically in the cylinder 3, a cylinder head 24 arranged above the piston 23 and forming a combustion chamber 4 in cooperation with the cylinder 3 and the piston 23, and an injector 5 attached to the cylinder head 24 and injecting fuel to the combustion chamber 4. A stepped portion 26 heightened toward an outer side of the piston 23 is provided on an upper end edge of the piston 23, a recessed cavity 27 constituting at least a part of the combustion chamber 4 is provided in an inner side of the stepped portion 26 in the piston 23, and a protrusion 30 having a shape in correspondence with a shape of the stepped portion 26 is provided in a lower portion of the cylinder head 24.SELECTED DRAWING: Figure 2
Inventors:
Nagamori Keishi
Hideki Aoki
Hideki Aoki
Application Number:
JP2015029740A
Publication Date:
February 13, 2019
Filing Date:
February 18, 2015
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
F02B23/06; F02B3/06; F02F3/26; F02F3/28
Domestic Patent References:
| JP2006328961A | ||||
| JP2006118427A | ||||
| JP2014227905A | ||||
| JP2012189041A | ||||
| JP2000234521A | ||||
| JP2012028U | ||||
| JP57076229U |
Foreign References:
| FR2879259A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Takashi Mikami
Hiromitsu Nakayama
Yoshiki Kuroki
Takashi Mikami
Hiromitsu Nakayama