3516B Generator Set Engines with Dynamic Gas Blending Caterpillar


Fuel Pressure - Gas System

Usage:

3512B 4AW

技术规格

表 1
参数   
燃油供应压力  83 to 276 kPa (12 to 40 psig)(1) 
控制阀燃料压力  10.3 to 24.1 kPa (1.5 to 3.5 psig) 
(1) 建议的供应压力范围为 30-35 psig。

简介

使用此步骤检查调节后的燃气压力。 确保燃料供应压力正确。

所需工具

表 2
所需工具  数量 
1U-5470  发动机压力表总成 
8T-5160  燃气调节器设置工具 


图 1g01192577
1U-5470 发动机压力表总成
(1) 压力指示器
(2) 零位调整螺钉
(3) 压力指示器
(4) 测压口
(5) 压力指示器

此工具总成具有用于读取燃气管压力的指示器。 此工具总成附带一本专门说明书, GMGO8907。

测试准备工作 - 控制阀燃料压力


注意

不要让脏物进入燃油系统。 彻底清洁要断开的燃油系统部件的周围区域。 在所有断开的燃油系统部件上安放适当的盖。




图 2g06205878
(6) 燃油控制阀
(7) 燃气压力传感器端口
(8) 燃气管路
(9) 断气阀(GSOV)

  1. 关闭主气阀。

  2. 对 GSOV 断电。

  3. 将燃气压力传感器 (7) 缓缓从燃气管路 (8) 上拆下。

  4. 将接头安装到燃气管路 (8) 中。 将 1U-5470 发动机压力表总成连接到接头。 参考图 1。

测试步骤 - 控制阀燃料压力


注意

不要让脏物进入燃油系统。 彻底清洁要断开的燃油系统部件的周围区域。 在所有断开的燃油系统部件上安放适当的盖。


  1. 打开主气阀。

  2. 通电 GSOV。

  3. 检查燃料控制阀的发动机燃气压力。 如果压力不为 10.3 to 24.1 kPa (1.5 to 3.5 psig),请参阅调整步骤 - 燃料控制阀的燃料压力。

调整步骤 - 燃料控制阀燃料压力



图 3g03333365
(10) 螺栓
(11) 盖

  1. 拆下盖 (11),然后安装 8T-5160 燃气调节器设置工具中的正确工具,以便调整压力设置。

  2. 调整螺栓 (10) 以便达到所需的燃料控制阀燃料压力。

  3. 达到所需压力后,安装盖 (11)。

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