PRESSURE-REDUCING VALVE

PROBLEM TO BE SOLVED: To provide a pressure-reducing valve that can prevent occurrence of vibrations of a piston.SOLUTION: According to an embodiment of the present invention, there is provided a pressure-reducing valve 1 including a sheet 12, a valve 14 for opening or closing a flow path by being b...

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Main Authors NAKAMURA TAKEHIDE, TAKEDA SUMUTO, ITO SEITARO, KOBAYASHI MASAHIRO, ITAHARA MITSUKATSU, HASHIBA HIROBUMI, KAWAZOE KOJI, FUKUDA HIDEYUKI
Format Patent
LanguageEnglish
Japanese
Published 25.05.2017
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Summary:PROBLEM TO BE SOLVED: To provide a pressure-reducing valve that can prevent occurrence of vibrations of a piston.SOLUTION: According to an embodiment of the present invention, there is provided a pressure-reducing valve 1 including a sheet 12, a valve 14 for opening or closing a flow path by being brought into contact with or being separated from the sheet 12, a piston 16 for bringing the valve 14 into contact with the sheet 12 or separating the valve 14 from the sheet 12; a spring 17 for energizing the piston 16 into a direction in which the valve 14 opens; and a backlash prevention unit for preventing backlash between the piston 16 and the spring 17 due to a curved polished surface 47 of the spring 17.SELECTED DRAWING: Figure 1 【課題】ピストンの振動の発生を防止できる減圧弁を提供する。【解決手段】本発明の一態様は、シート12と、シート12に対して当接および離間することにより流路を開閉するバルブ14と、バルブ14をシート12に対して当接および離間させるピストン16と、バルブ14の開弁方向にピストン16を付勢するスプリング17と、を有する減圧弁1において、スプリング17の研磨面47のうねりに起因するピストン16とスプリング17との間のガタツキを抑制するガタツキ抑制部を有する。【選択図】図1
Bibliography:Application Number: JP20150220090