BUTTERFLY VALVE AND EXHAUST GAS RECIRCULATION VALVE

To provide a butterfly valve that prevents the other end of a valve stem from whirling.SOLUTION: A butterfly valve includes: a housing 10 in which a fluid channel 11 is formed; a valve stem 20 to which a valve element 30 is fitted, which penetrates in a vertical direction relative to the fluid chann...

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Bibliographische Detailangaben
1. Verfasser:	KURIHARA AKIHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS COMBUSTION ENGINES DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	To provide a butterfly valve that prevents the other end of a valve stem from whirling.SOLUTION: A butterfly valve includes: a housing 10 in which a fluid channel 11 is formed; a valve stem 20 to which a valve element 30 is fitted, which penetrates in a vertical direction relative to the fluid channel 11 and of which one end part 21 is connected to a power source; a sleeve 40 covering the other end part 22 of the valve stem 20 and having a tip which has a spherical shape; and a stopper 50 having a spherical shape for receiving a spherical surface of the sleeve 40.SELECTED DRAWING: Figure 2 【課題】弁軸の他端が振れないバタフライバルブを提供する。【解決手段】流体通路１１が形成されているハウジング１０と、弁体３０が取り付けられ、流体通路１１に対して垂直方向に貫通し、一端部２１が動力源に接続される弁軸２０と、弁軸２０の他端部２２を覆い、先端が球面形状であるスリーブ４０と、スリーブ４０の球面を受ける球面形状を有するストッパ５０と、を備えた。【選択図】図２