VALVE SHAFT POSITION SENSING TYPE EGR VALVE

A EGT valve of the present invention includes: a valve shaft vertically disposed and moving up and down by rotating about a vertical rotational axis; a cylindrical cam integrally fitted around an upper portion of the valve shaft and having a spiral groove on an outer side and a polyhedron at an uppe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	CHO, Yong Kuk
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BLASTING COCKS COMBUSTION ENGINES DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MECHANICAL ENGINEERING PHYSICS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TAPS TARIFF METERING APPARATUS TESTING THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A EGT valve of the present invention includes: a valve shaft vertically disposed and moving up and down by rotating about a vertical rotational axis; a cylindrical cam integrally fitted around an upper portion of the valve shaft and having a spiral groove on an outer side and a polyhedron at an upper end; a fixed bearing fixed to a side of the cylindrical camp with an end slidably inserted in the spiral groove; a rotary gear having the polyhedron inserted on the rotational axis therein and rotated by a rotary motor; an elevating block disposed at an upper end of the valve shaft passing through the cylindrical cam and pushed upward by the valve shaft when the valve shaft is moved up; a pressing spring applying downward elasticity to the elevating block; a magnet plate fixed to a side of the elevating block; a hall sensor sensing up-down movement of the magnet plate; and a housing keeping the valve shaft, the cylindrical camp, the rotary gear, and the elevating block therein.