INTAKE PASSAGE STRUCTURE

A plurality of parts that constitute an intake passage (30) connected with an intake port (37) of an engine (18) include a constriction part (50) that has a protrusion (60) formed to protrude on an inner circumferential surface side of the intake passage (30). The constriction part (50) includes cyl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TANI, Yusaburo, TAKANO, Tetsuya
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A plurality of parts that constitute an intake passage (30) connected with an intake port (37) of an engine (18) include a constriction part (50) that has a protrusion (60) formed to protrude on an inner circumferential surface side of the intake passage (30). The constriction part (50) includes cylindrical connections (52, 56) disposed on both sides of a constriction path (55) in which the protrusion (60) is formed. The constriction path (55) has an outer circumferential surface (62) recessed inwardly in a radial direction so as to follow a shape of the protrusion (60). A portion recessed most (62a) of the recessed outer circumferential surface (62) is disposed inside inner circumferential surfaces (52a, 56a) of the connections (52, 56) in the radial direction. The constriction path (55) has a uniform wall thickness. The constriction part (50) is connected upstream of the throttle body (41).