Title:
COMBUSTION CHAMBER STRUCTURE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2013/088575
Kind Code:
A1
Abstract:
A combustion chamber structure for an internal combustion engine is provided with a recessed part (12) which is formed eccentrically with respect to a cylinder center axis (C1) at a piston top, and a tapered part (20) which connects the upper end surface (22) of the piston top and the side surface (18) of the recessed part (12). The tapered part (20) is formed such that a tapered part volume (the volume of a space formed between the tapered part (20) and a combustion chamber upper wall surface) in a first section of the piston top is larger than a tapered part volume in a second section closer to the eccentric direction of the recessed portion (12) from the cylinder center axis (C1) than the first section.
Inventors:
NISHIDA KENTARO (JP)
OYAGI HIROSHI (JP)
OYAGI HIROSHI (JP)
Application Number:
PCT/JP2011/079235
Publication Date:
June 20, 2013
Filing Date:
December 16, 2011
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
NISHIDA KENTARO (JP)
OYAGI HIROSHI (JP)
NISHIDA KENTARO (JP)
OYAGI HIROSHI (JP)
International Classes:
F02F3/26; F02B23/06
Foreign References:
| JPS59157535U | 1984-10-23 | |||
| JP2012021512A | 2012-02-02 | |||
| JPH03210021A | 1991-09-13 | |||
| JPH03210021A | 1991-09-13 | |||
| JPS59157535U | 1984-10-23 | |||
| JPS6394020A | 1988-04-25 | |||
| JP2000220520A | 2000-08-08 | |||
| JPH09280052A | 1997-10-28 |
Other References:
See also references of EP 2799686A4
Attorney, Agent or Firm:
TAKAHASHI, Hideki et al. (JP)
Hideki Takahashi (JP)
Hideki Takahashi (JP)
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Claims: