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PVV21-1X/055-018RA15UUVB
脉冲线性式电磁阀一般用来控制油路中的油压也是由电磁线圈衔铁阀芯或滑阀等组成其工作原理是当电磁线通电时，电磁力使阀芯或滑阀移动，打开泄油孔，液压油从泄油孔泄出，油路压力随之下降。当电磁线圈断电时，阀芯或滑阀在弹簧力的作用下关闭泄油孔，使油路中的压力上升。脉冲线性式电磁阀和开关式电磁阀的区别在于控制它的电信号不是恒定不变的电压信号，而是一个固定频率的脉冲电信号，它在脉冲电信号的作用下不断反复地开启和关闭泄油孔。ECU就是通过改变每个脉冲周期内电流接通和断开的时间比率称为占空比，而改变电磁阀开启和关闭时间的比率，来控制油路中的压力的。占空比越大，经电磁阀泄出的液压油越多，油路压力越低。占空比越小，经电磁阀泄出的液压油越少，油路中的压力就越大。图片来源于网络如有侵权请联系删除谢谢。
PVV21-1X/055-018RA15UUVB
