Tumble control valve having a bottom pivot

A tumble valve for variably impeding air flow in a manifold runner of an internal combustion engine. The valve includes a pivot-shaft located at or in a wall of the runner. The runner is rectanguloid in the region of the pivot-shaft, as is a damper attached along one edge to the pivot-shaft. In clos...

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Bibliographische Detailangaben
Hauptverfasser:	CONFER KEITH A, LAMB CURTIS D
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	A tumble valve for variably impeding air flow in a manifold runner of an internal combustion engine. The valve includes a pivot-shaft located at or in a wall of the runner. The runner is rectanguloid in the region of the pivot-shaft, as is a damper attached along one edge to the pivot-shaft. In closed position, the valve creates a desired degree of tumble in air flowing through the runner, but in open position the shaft and damper lie against the runner wall. The improved valve thus causes no air flow restriction when the valve is open. In any partially-closed position, the lower area of the runner is always blocked because the valve pivots from below, and all air is forced up and over the upper edge of the damper. Fuel efficiency is optimized over an increased range of engine speeds.