Title:
内燃機関のピストン
Document Type and Number:
Japanese Patent JP5293842
Kind Code:
B2
Abstract:
Disclosed is a piston (16) that is capable of not only suppressing the occurrence of knocking but also reducing cooling loss in an internal combustion engine in which a tumble flow is formed in a cylinder. The piston for the internal combustion engine in which the tumble flow is formed in the cylinder includes a non-adiabatic region (50) that is a region on a piston upper surface (35) brought into contact with the tumble flow during an intake stroke and has no insulating layer. The piston also includes an adiabatic region (52) that is a region on at least a part of the piston upper surface excluding the non-adiabatic region and has an insulating layer.
Inventors:
Tetsuo Omura
Yoshimatsu Akio
Yasushi Yahara
Takeshi Masafumi
Yoshimatsu Akio
Yasushi Yahara
Takeshi Masafumi
Application Number:
JP2011553700A
Publication Date:
September 18, 2013
Filing Date:
February 15, 2010
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02F3/12; F02B23/08; F02B23/10; F02F3/00; F02F3/10; F02F3/26
Domestic Patent References:
| JPS56175548U | 1981-12-24 | |||
| JP3758357B2 | 2006-03-22 | |||
| JPS56138116U | 1981-10-19 | |||
| JP2699586B2 | 1998-01-19 | |||
| JPH02118152U | 1990-09-21 | |||
| JPS60178345U | 1985-11-27 |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi