ELECTRIC DRIVE VALVE
To provide an electric drive valve capable of effectively suppressing the collision sound of a plunger without changing performance.SOLUTION: In an electric valve 1, a shock absorbing member 50 that can elastically deform and is made of synthetic resin is disposed in an inner space 33b of a plunger...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide an electric drive valve capable of effectively suppressing the collision sound of a plunger without changing performance.SOLUTION: In an electric valve 1, a shock absorbing member 50 that can elastically deform and is made of synthetic resin is disposed in an inner space 33b of a plunger 33. When the plunger 33 and an upper end wall portion 32b of a case 32 separate, an upper end 50a of the shock absorbing member 50 projects out from the inner space 33b toward the upper end wall portion 32b. When the plunger 33 moves toward the upper end wall portion 32b, the upper end 50a of the shock absorbing member 50 contacts with the upper end wall portion 32b and is pushed into the inner space 33b, and the plunger 33 contacts with the upper end wall portion 32b.SELECTED DRAWING: Figure 1
【課題】性能の変化がなく、プランジャの衝突音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、プランジャ33の内側空間33bに、弾性変形可能な合成樹脂製の緩衝部材50が配置されている。プランジャ33とケース32の上端壁部32bとが離れているとき、緩衝部材50の上端50aが内側空間33bから上端壁部32bに向けて突出している。そして、プランジャ33が上端壁部32bに向かって移動すると、緩衝部材50の上端50aが上端壁部32bに接するとともに内側空間33bに押し込まれ、プランジャ33が上端壁部32bに接する。【選択図】図1 |
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