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发明公开
CN103016338A 用于尿素SCR系统的泵结构 无效 - 撤回

用于尿素SCR系统的泵结构
摘要：
本发明公开了一种用于尿素SCR系统的泵结构，即公开了一种用于尿素SCR系统的泵单元。该用于尿素SCR系统的泵单元可以使用车辆发动机的燃料泵，并且可以具有壳体部分，该壳体部分包围马达部分和泵部分。所述马达部分可以包括包围旋转体的阻隔壁，从而将该旋转体与所述马达部分的定子隔开；并且所述泵部分包括护罩，在所述泵部分中形成有用于液体的吸入孔和供应孔，所述护罩布置在所述泵部分和所述马达部分之间，从而防止液体泄漏到所述马达部分中，所以，马达被保护而免受尿素溶液的影响，从而防止其发生腐蚀，降低了制造成本，并降低了由振动引起的噪音。
摘要（英）：

The invention discloses a pump structure for a urea SCR system and discloses a pump unit for a urea SCR system. A pump unit for a urea-SCR system may use a fuel pump of a vehicle engine and may have a case portion surrounding a motor portion and a pump portion. The motor portion may include a barrier wall surrounding a rotator so as to separate the rotator from a stator of the motor portion, and the pump portion includes a shield in which a suction hole and a supply hole for fluid are formed and that is disposed between the pump portion and the motor portion so as to prevent fluid from leaking into the motor portion, so the motor is protected from the urea solution to prevent corrosion thereof, manufacturing cost is reduced, and noise caused by the vibration is reduced.

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