Internal combustion engine

Details Internal combustion engine Internal combustion engine

1998-05-26

1999-06-22

Solis, Erick R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

123308, 12318814, F02B 3100

Patent

active

059132973

ABSTRACT:
A cylinder direct injection spark-ignition internal combustion engine. The engine comprises a cylinder block having a plurality of cylinders. A cylinder head is fixedly mounted on a block deck of the cylinder block. The cylinder head has an intake port for each cylinder. The intake port has first and second sections which are contiguous with each other. The first section is located downstream of the second section relative to the flow of intake air. The first and second sections have respectively first and second axes. The first and second axes incline relative to a bottom flat surface of the cylinder head respectively to form first and second angles, in which the first angle is smaller than the second angle. A fuel injector valve is provided to directly inject fuel into a combustion chamber formed corresponding to each cylinder. The fuel injector valve is located close to the intake port and disposed closer to a periphery of the combustion chamber than a downstream end of the intake port. A spark plug is provided in such a manner that its tip end section is projected into the combustion chamber.

REFERENCES:
patent: 4702203 (1987-10-01), Ohmi et al.
patent: 4805569 (1989-02-01), Suzumura et al.
patent: 4809647 (1989-03-01), Masumoto et al.
patent: 5233956 (1993-08-01), Ueda et al.
patent: 5357925 (1994-10-01), Sasaki
patent: 5676107 (1997-10-01), Yuzuriha et al.
patent: 5762042 (1998-06-01), Yoshikawa et al.

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