VALVE DEVICE

A valve device includes a body in which a gas flow passage is provided; and a check valve provided in the gas flow passage, the check valve including a poppet and a valve seat. The poppet excluding a block portion is in a form of a hollow shaft, the block portion being located at a distal end of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAKAMURA, AKIO, YAMASHITA, AKIRA, HANEDA, KAZUO, KUROYANAGI, MUNETOSHI, INAGI, SHUSUKE, KONDO, MASAAKI
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:A valve device includes a body in which a gas flow passage is provided; and a check valve provided in the gas flow passage, the check valve including a poppet and a valve seat. The poppet excluding a block portion is in a form of a hollow shaft, the block portion being located at a distal end of the poppet and having a taper shape, and the poppet has at least one side hole that provides communication between an inside and an outside of a portion of the poppet, the portion being in the form of the hollow shaft. The at least one side hole extends obliquely with respect to a central axis line of the poppet such that the at least one side hole extends along a gas flow direction inclined with respect to a direction in which the poppet moves when the check valve opens.