Title:
COOLING SYSTEM FOR PISTON
Document Type and Number:
Japanese Patent JP2011256742
Kind Code:
A
Abstract:
To reduce the width of temperature change in a top ring, concerning a system for cooling the piston of an internal combustion engine.
A cooling system for a piston includes a cooling channel designed as an annular oil passage embedded in the piston and arranged adjacent to a top ring groove, and an oil jet that supplies oil to the cooling channel. An amount of oil supplied from the oil jet to the cooling channel is made larger when an amount of heat generated in a combustion chamber is large than when the amount of heat generated in the combustion chamber is small.
Inventors:
KOYAMA TAKASHI
UMEDA NAOKI
ISHIDA MASAO
NAGATA SATOSHI
HARASHINA KENICHI
NAKASONE HIDEAKI
TSUKADA ICHIRO
TOYOSHIMA AKINORI
HIRANO MASAYA
UMEDA NAOKI
ISHIDA MASAO
NAGATA SATOSHI
HARASHINA KENICHI
NAKASONE HIDEAKI
TSUKADA ICHIRO
TOYOSHIMA AKINORI
HIRANO MASAYA
Application Number:
JP2010130308A
Publication Date:
December 22, 2011
Filing Date:
June 07, 2010
Export Citation:
Assignee:
TOYOTA MOTOR CORP
TPR CO LTD
ART METAL MFG CO LTD
TPR CO LTD
ART METAL MFG CO LTD
International Classes:
F01M1/08; F01P3/10; F01P7/16; F02F3/00; F02F3/22; F16J1/09; F16J9/00
Domestic Patent References:
| JP2003336541A | 2003-11-28 | |||
| JP2009243426A | 2009-10-22 | |||
| JPH1068319A | 1998-03-10 | |||
| JP2006029127A | 2006-02-02 | |||
| JPS63289213A | 1988-11-25 |
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Kazunobu Sera
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Kazunobu Sera
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita