Lufteinlassvorrichtung mit variabler Geometrie

A variable intake apparatus includes an intake manifold. The manifold has a surge tank (23) and a plurality of branch pipes (31, 32, 33, 34) extending therefrom. The air in the surge tank is drawn into the combustion chambers (20) of an engine (12) via the branch pipes. The lengths of the branch pip...

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Bibliographische Detailangaben
1. Verfasser:	MOROTA, KENJIRO
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL 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 variable intake apparatus includes an intake manifold. The manifold has a surge tank (23) and a plurality of branch pipes (31, 32, 33, 34) extending therefrom. The air in the surge tank is drawn into the combustion chambers (20) of an engine (12) via the branch pipes. The lengths of the branch pipes are different. A movable pipe (41, 42, 43, 44) is slidably located in each branch pipe. The movable pipes slides within the branch pipes for changing the effective passage length of the intake passages. The passage lengths of the movable pipes are determined such that the effective intake passage lengths are equalized. A motor (45) actuates the movable pipes to slide within the branch pipes based on the engine speed. The movable pipes integrally move with respect to the branch pipes while keeping the passage lengths of the intake passages equalized.