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丹麥 ScanWill 斯肯崴爾  油壓增壓器作動原理技術說明

♠ 丹耀-首頁 > ScanWill > ScanWill 油壓增壓器作動原理技術說明

功能:

 

圖1: 為增壓器的基本原理,由活塞裝置以及活塞控制閥PCV組成。活塞的位置,在每次行程尾端時將回溯訊號S到活塞控制閥PCV,以達到活塞所要求的位置,確保活塞正朝著相反的方向移動。這個迴圈將繼續直到達到終端壓力。此時,活塞會停止,且只會移動來維持終端壓力。

 

流程:

 

當補充液壓液體至增壓器的P-介面,以而T-介面連接到油箱,則油會流過逆止閥CV1以及CV2,直達高壓介面-HP處。假若裝有內部引導式逆止閥POV是合併的,油將會直接流到HP-介面處。

 

在這種情況下,所有供應的流體會流到高壓處,以確保系統快速填滿。當達到幫浦的壓力時,增壓活塞會將流體帶到高壓位置,並且持續進行,直到終極壓力達到所要求的程度為止。然後活塞會停止,除非因壓力洩漏或損耗,活塞會再次移動來補充壓力的流失。

 

圖2 : 為一般流量曲線,顯示增壓器如何作用。當需要釋放高壓端的壓力時,將使用內部的POV閥。藉由切換方向閥,使T-port接上壓力源,而P-port接回油箱,這時POV閥會打開,使高壓端的油快速地直接流回油箱。

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