ELECTRIC DRIVE VALVE

• Main Authors: UCHIDA YOSHINORI, KIBUNE HITOSHI, MUNAKATA KYOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 01.11.2022
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

To provide an electric drive valve effectively inhibiting fluid from causing a valve body to close a valve seat in the valve open state.SOLUTION: A solenoid valve 1 includes a cylindrical valve body housing member 70. The valve body housing member 70 has a housing space 74 for housing a valve body 20 in a valve open state. A center axis of a cylindrical part 12a and a center axis of the valve body 20 are arranged on a first axial line L1. A center axis of a first conduit 91 is arranged on a second axial line L2 perpendicular to the first axial line L1. The solenoid valve 1 satisfies the following expression (1); -0.03≤D2/D1≤0.08 (1), where D1 is an inner diameter in the first axial line L1 direction of the first conduit 91, and D2 is a distance in the first axial line L1 direction between a lowest part 91a of an inner face of the first conduit 91 and an upper end face 12c of the cylindrical part 12a. Therein, the distance D2 is a positive value when the upper end face 12c is above the lowest part 91a, or a negative value when the upper end face 12c is below the lowest part 91a.SELECTED DRAWING: Figure 2 【課題】開弁状態において流体により弁体が弁座を閉じることを効果的に抑制できる電気的駆動弁を提供する。【解決手段】電磁弁１は、円筒形状を有する弁体収容部材７０を有す。弁体収容部材７０は、開弁状態において弁体２０を収容する収容空間７４を有す。円筒部１２ａの中心軸と弁体２０の中心軸とが第１軸線Ｌ１上に配置されている。第１導管９１の中心軸が、第１軸線Ｌ１と直交する第２軸線Ｌ２上に配置されている。電磁弁１は、第１導管９１の第１軸線Ｌ１方向の内径をＤ１とし、第１導管９１の内面における最下部９１ａと円筒部１２ａの上端面１２ｃとの第１軸線Ｌ１方向の距離をＤ２としたとき、次の式（１）を満たす。－０．０３≦Ｄ２／Ｄ１≦０．０８・・・（１）ただし、距離Ｄ２は、上端面１２ｃが最下部９１ａより上方のときを正の値とし、上端面１２ｃが最下部９１ａより下方のときを負の値とする。【選択図】図２