MOTOR VALVE

To provide a motor valve excellent in flow rate controllability.SOLUTION: A motor valve 10 includes: a valve chamber 24C where a valve seat 24C is formed on a bottom part; a valve body 24 having a first opening 24A1 and a second opening 24B1; a valve body 24D which rotates in the valve chamber 24C a...

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Bibliographische Detailangaben
Hauptverfasser: KOSHIRO RIKI, OUCHI TOMOARI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a motor valve excellent in flow rate controllability.SOLUTION: A motor valve 10 includes: a valve chamber 24C where a valve seat 24C is formed on a bottom part; a valve body 24 having a first opening 24A1 and a second opening 24B1; a valve body 24D which rotates in the valve chamber 24C and controls an opening/closing state of a flow channel between the first opening 24A1 and the second opening 24B1; a cylindrical can 12 connected to the valve body 24 and having a bottom part 12A; a stator 14 provided outside the can 12; a support member 16 provided on side of the bottom part inside the can 12; a transmission shaft 18 one end of which is supported by the support member 16 and the other end of which extends along a shaft direction of the can 12; a rotor 20 provided inside the can 12; a driving shaft 22 rotating and driving the valve body 24D; a speed reducer 21 reducing speed of rotation of the rotor 20 and outputting it to the driving shaft; and a spring member 26 imparting load heading for the valve seat 24C to the valve body 24D.SELECTED DRAWING: Figure 1 【課題】流量制御性に優れた電動弁を提供する。【解決手段】電動弁10は、底部に弁座24Cが形成された弁室24C、第一開口24A1および第二開口24B1を有する弁本体24と、弁室24C内で回転し、第一開口24A1と第二開口24B1との間の流路の開閉状態を制御する弁体24Dと、弁本体24に接合され、底部12Aを有する筒状のキャン12と、キャン12の外側に設けられたステータ14と、キャン12の内側で底部の側に設けられた支持部材16と、一端が支持部材16に支持されると共に他端がキャン12の軸方向に沿って延びる伝達軸18と、キャン12の内側に設けられたロータ20と、弁体24Dを回転駆動する駆動軸22と、ロータ20の回転を減速して駆動軸に出力する減速装置21と、弁体24Dに弁座24Cに向かう荷重を付与するばね部材26と、を備える。【選択図】図1