高閥的開啟壓力,保證閥工作穩(wěn)定,不過(guò),D值過(guò)大,將使閥的結(jié)構(gòu)尺寸和閥芯質(zhì)量加大,主閥上腔容積增加,導(dǎo)致動(dòng)態(tài)過(guò)程時(shí)間延長(zhǎng),
太小又保證不了靜態(tài)特性要求,一般應(yīng)保證:
4、主閥芯半錐角α1
5、主閥芯阻尼孔d0及長(zhǎng)度l0
主閥芯上阻尼孔d0
越小,其長(zhǎng)度l0越長(zhǎng),
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