Title:
PISTON FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2013/022062
Kind Code:
A1
Abstract:
Provided is a piston configured so that frictional resistance between the skirt thereof and the inner surface of the cylinder is reduced to improve fuel consumption. A piston (1) for an internal combustion engine is configured so that, when the piston (1) slides along the inner surface (12) of the cylinder, a high surface pressure section (14) occurs at the center of the skirt (6) and low surface pressure sections (15) occur on both sides of the high pressure surface section (14). The piston (1) for an internal combustion engine is characterized in that horizontal grooves (16) are provided in the high surface pressure section (14) among the multiple sections and tilted grooves (17) are provided in the low surface pressure sections (15) among the multiple sections, the tilted grooves (17) being tilted downward to the high surface pressure section (14) side and being connected to the ends of the horizontal grooves (16).
Inventors:
SUZUKI NOBUYUKI (JP)
HIROMATSU TAKESHI (JP)
HIROMATSU TAKESHI (JP)
Application Number:
PCT/JP2012/070323
Publication Date:
February 14, 2013
Filing Date:
August 09, 2012
Export Citation:
Assignee:
SUZUKI MOTOR CORP (JP)
SUZUKI NOBUYUKI (JP)
HIROMATSU TAKESHI (JP)
SUZUKI NOBUYUKI (JP)
HIROMATSU TAKESHI (JP)
International Classes:
F02F3/00; F16J1/08
Foreign References:
| JPH0488766U | 1992-07-31 | |||
| JP2006275002A | 2006-10-12 | |||
| JP2007321860A | 2007-12-13 |
Attorney, Agent or Firm:
KITAMURA, Chikahiko (JP)
Chikahiko Kitamura (JP)
Chikahiko Kitamura (JP)
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Claims:
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