ENGINE INTAKE SYSTEM, AND ENGINE

The intake system of the engine supplies gas at least containing fresh air to each cylinder and includes: the throttle valve that regulates an intake amount of the fresh air; the downstream intake passage having the internal space in which the fresh air having flowed through the throttle valve is in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA, Yuichiro, YAMADA, Takuya, ODA, Yusuke, WATANABE, Tomomi, SASAKI, Junsou
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	The intake system of the engine supplies gas at least containing fresh air to each cylinder and includes: the throttle valve that regulates an intake amount of the fresh air; the downstream intake passage having the internal space in which the fresh air having flowed through the throttle valve is introduced into the cylinder of the engine 1; and an EGR passage that communicates with the internal space of the downstream intake passage and introduces some of exhaust gas as EGR gas into the downstream intake passage. The EGR passage includes a projected section in a substantially polygonal or cylindrical shape that is projected to the internal space of the downstream intake passage. The projected section is formed in such a shape that a projection length in an outer circumferential surface on an upstream side is longer than a projection length in an outer circumferential surface on a downstream side.