Direct-injection spark-ignition engine

Details Direct-injection spark-ignition engine Direct-injection spark-ignition engine

1998-12-18

2000-05-23

Wolfe, Willis R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Injected fuel spraying into whirling fluid

123306, 123432, F02F 142, F02B 1502

Patent

active

060654449

ABSTRACT:
A direct-injection spark-ignition engine having engine cylinders bored in a cylinder block, and a cylinder head mounted on the cylinder block, comprises at least one intake port provided for each of the engine cylinders. The ratio V/A of a stroke volume V (cm.sup.3) per cylinder to a cross-sectional area A (cm.sup.2) is set within a predetermined range defined by 45.ltoreq.V/A.ltoreq.55, where the cross-sectional area A is a minimum cross-sectional area obtained when the at least one intake port is cut by a plane extending in a direction substantially normal to a stream line of intake air flowing through the intake port.

REFERENCES:
patent: 5138988 (1992-08-01), Distelrath et al.
patent: 5167211 (1992-12-01), Fukuma et al.
patent: 5394845 (1995-03-01), Noh et al.
patent: 5551392 (1996-09-01), Yamaji et al.
patent: 5603299 (1997-02-01), Yuzuriha et al.
patent: 5983856 (1999-11-01), Oda et al.
Japanese Abstracts of Japan, Shizuo, "Spark Ignition Engine Injecting Fuel Directly Into Cylinder", Japanese application No. 62-191622, (Aug. 22, 1987).
Japanese Abstracts of Japan, Shizuo,"Inner-Cylinder Direct Jet Type Spark Ignition Engine", Japanese application No. 02169834, (Jun. 29, 1990).

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