CYLINDER HEAD OF ENGINE

A cylinder head of an engine is provided, which includes first and second intake ports that open to a common cylinder. The first intake port opens to the cylinder to generate a swirl flow. The second intake port has a tumble flow generating part configured to cause intake air to become a tumble flow...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Tadokoro, Tadashi, Kanno, Takayoshi, Otachi, Toshiki
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	A cylinder head of an engine is provided, which includes first and second intake ports that open to a common cylinder. The first intake port opens to the cylinder to generate a swirl flow. The second intake port has a tumble flow generating part configured to cause intake air to become a tumble flow in the same direction as the swirl flow. The tumble flow generating part includes a helical part having an inner wall surface curving on a centerline perpendicular to an opening surface of the second port and continuing from a first port side to the opening of the second intake port toward at an opposite side from the first port. The opening of the second intake port has an edge part having an opening angle with respect to the centerline of the second port, the opening angle being smaller at an upstream side of the swirl flow.