G3512 Generator Set Engines Caterpillar


Manifold Air Pressure Sensor

Usage:

G3512 E26

表 1
所需工具  数量 
1U-5470 发动机压力表总成 

绝对压力 - 绝对压力是表压力加上当地大气压力。

表压力 - 表压力是绝对压力减去当地大气压力。

歧管空气压力传感器也称为进气压力传感器。 进气压力传感器测量进气歧管空气绝对压力。

为了确认进气压力传感器是否准确,当发动机停机时,使用 Caterpillar 电子技师 (ET) 读取"进气歧管空气压力" (abs)。 正确的压力将是外界大气压力。

使用下列步骤将进气压力传感器的读数与 1U-5470 发动机压力表总成的读数进行比较。

注: 可将进气压力传感器安装在进气歧管的任意一端。 实际位置取决于控制系统的配置。



图 1g06098567
发动机前上视图。
(1) 进气歧管温度传感器
(2) 进气歧管螺塞。
(3) 进气歧管压力传感器

将螺塞从进气歧管上拆下。 将一根管路自从孔口连接到 1U-5470 发动机压力总成的压力表。 发动机在负载下运转。 使用 Cat ET 读取进气歧管空气压力。 读取 1U-5470 发动机压力总成上的压力表并在读数上加上当地大气压力。 将计算值与 Cat ET 的读数进行比较。

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