Title:
CYLINDER INJECTION TYPE INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3644199
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve an exhausting characteristic by reducing attachment of fuel spray on a cavity side wall as well as to improve fuel consumption by betterment of a surface area/volume ratio.
SOLUTION: This internal combustion engine is constituted so as to directly inject fuel spray in the inside of a combustion chamber 12 by a fuel injection valve 17 arranged on an air intake side wall surface of the combustion chamber 12 formed between a piston top surface 10a and a lower surface of a cylinder head 11 and to carry out sparking ignition by an ignition plug 18 arranged at a roughly central part of a wall surface facing against the piston top surface 10a of the combustion chamber 12. In this case, a swirl control valve 20 to generate a swirl flow of intake air in the combustion chamber 12 is provided in an air intake passage 19, a roughly columnar cavity 21 on an upper surface of which an opening part 21a is formed at a position below a line connecting the fuel injection valve 17 of the piston top surface 10a and the ignition plug 18 to each other, and height of a side wall of the cavity 21 is formed so that the upstream side of the air intake swirl flow becomes lower than the downstream side.
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Inventors:
Tomonori Urushihara
Application Number:
JP14492797A
Publication Date:
April 27, 2005
Filing Date:
June 03, 1997
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02B17/00; F02B23/08; F02B23/10; F02B31/02; F02F3/28; F02M61/14; F02M69/00; F02B75/12; (IPC1-7): F02B23/10; F02B17/00; F02B23/08; F02B31/02; F02F3/28; F02M61/14; F02M69/00
Domestic Patent References:
| JP8260986A | ||||
| JP8246878A | ||||
| JP7102976A | ||||
| JP8035429A | ||||
| JP4334722A | ||||
| JP7247847A | ||||
| JP6093941A |
Attorney, Agent or Firm:
Tomijio Sasashima