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发明公开
CN1619198A 先导式水压溢流阀 失效 - 权利终止

先导式水压溢流阀
摘要：
先导式水压溢流阀，属于阀类，旨在于降低主阀口工作压差、加宽调压范围、减小导阀侧向振摆、增加导阀阻尼，实现抗气蚀低噪声。其主阀体具有前端盖，主阀体内设有主阀座、主阀套、主阀芯、主阀弹簧；先导阀由先导阀阀座、先导阀阀芯、调压弹簧构成，先导阀和主阀连接、先导阀阀芯上具有导向圆柱面，其与先导阀阀体内孔之间形成阻尼腔；主阀体入口处设置节流环、其径向有直径不同的节流孔，前端盖上装设压力挡调节旋钮、后者可旋转节流环以调节节流孔的工作位置；或者在前端盖上设置节流孔。本发明适用于以海水、淡水、高水基等作为工作介质的水液压系统中作为压力控制阀，具有工作压力高、调压范围宽、抗气蚀性能好、噪声低、工作稳定性好等优点。
摘要（英）：

The present invention relates to a pilot type hydraulic overflow valve. Its main valve body has front end cover, in said main valve body a main valve seat, a main valve buckle, a main valve core and a main valve spring are set, and said pilot valve is formed from its valve seat, valve core and pressure-regulating spring, said pilot valve is connected with said main valve. Said invention also provides the structure of main valve and pilot valve, and provides the application range of said valve.

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