Title:
シリンダヘッド及びエンジン
Document Type and Number:
Japanese Patent JP6078630
Kind Code:
B2
Abstract:
A cylinder head includes a cylinder head body provided with intake and exhaust ports opened toward a combustion chamber and capable of being closed by valves, the intake and exhaust ports being separated from each other in a circumferential direction around a cylinder central axis. An opening section of at least one of the intake and exhaust ports facing the combustion chamber is provided with a seat surface centered on a valve axis and a tapered surface disposed closer to the combustion chamber than the seat surface, the tapered surface being gradually increased in diameter as close to the combustion chamber. A central axis of the tapered surface is disposed eccentrically from the valve axis toward the cylinder central axis.
More Like This:
| JPS5236215 | CYLINDER HEAD |
| WO/1988/003606 | CYLINDER HEAD CAP |
Inventors:
Yuta Furukawa
Kazuo Ogura
Kazuo Ogura
Application Number:
JP2015501138A
Publication Date:
February 08, 2017
Filing Date:
February 20, 2013
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F02F1/24; F02B23/00
Domestic Patent References:
| JP2009197704A | ||||
| JP58137804U | ||||
| JP61091046U |
Foreign References:
| EP2108788A1 |
Attorney, Agent or Firm:
Ryuichiro Mori
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma