C15 and C18 Petrolem Generator Set Engines Caterpillar


Oil Consumption Is Excessive

Usage:

C15 115

可能的原因

机油油位

  • 曲轴箱内有过量的机油

机油泄漏

  • 发动机外部存在机油泄漏

  • 气缸的燃烧区域中存在机油泄漏

机油粘度

  • 机油粘度不正确

涡轮增压器

  • 涡轮增压器密封件

建议措施

曲轴箱内有过量的机油

检查发动机机油油位。 发动机曲轴箱内有过量的机油会使发动机烧机油。 排出曲轴箱内过量的发动机机油。

确保油尺的标定正确和/或此应用中使用的油尺正确。 标定和/或更换油尺。

发动机外部存在机油泄漏

检查曲轴两端的油封是否漏油。 查看发动机油底壳密封垫和所有润滑系统连接有无漏油。 查看曲轴箱呼吸器是否有任何漏油。 这可能是由于燃烧气体从活塞周围的漏出导致的。 肮脏的曲轴箱呼吸器将会导致曲轴箱内压力高。 肮脏的曲轴箱呼吸器将会导致密封垫和密封件漏油。

气缸的燃烧区域中存在机油泄漏

发动机机油漏进气缸的燃烧区域会造成排气冒蓝烟。 机油可能通过四种途径漏入气缸的燃烧区域:

  • 经由磨损的气门导管和气门杆之间的漏油

  • 磨损或损坏的部件(活塞、活塞环或肮脏的发动机机油回油孔)

  • 压缩环和/或中间环安装不正确

  • 经由涡轮增压器轴密封环的漏油

  • 曲轴箱加注过满

  • 安装了错误的油位表或导管

  • 发动机长时间轻负载运转

机油粘度

如果使用的发动机机油粘度不对,也可能造成发动机机油消耗量过大。 燃油漏进曲轴箱或发动机温度升高都会使发动机机油粘度变稀。

涡轮增压器密封件

检查涡轮增压器轴密封件有无泄漏。 从涡轮增压器上拆下进气管路和排气出口管路。 检查压缩机叶轮和涡轮有无漏油迹象。 必要时修理或更换涡轮增压器。 请参考系统操作/测试和调整, "涡轮增压器检查"。

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