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Pump structure for urea SCR system

A technology of SCR system and urea, which is applied in the field of pump structure of urea SCR system, can solve the problems of cost increase, cost increase, operation noise, etc., and achieve the effects of reducing production cost, preventing corrosion and reducing noise

Inactive Publication Date: 2013-04-03
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, since a general fuel pump cannot be used as described above, a separate urea pump is required, thereby increasing the cost, and in particular, it is necessary to use such as figure 1 An expensive magnetic coupling is shown to prevent corrosion of the urea supply pump, which further increases the cost, and there is also a problem of operating noise due to the complicated structure of the magnetic coupling

Method used

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  • Pump structure for urea SCR system
  • Pump structure for urea SCR system
  • Pump structure for urea SCR system

Examples

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Embodiment Construction

[0036] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and others which may be included within the spirit and scope of the invention as defined by the appended claims. implementation.

[0037] Such as figure 2 As shown, the pump structure of the urea SCR system according to various embodiments of the present invention uses a fuel pump of a vehicle engine, and the fuel pump of the vehicle engine includes a motor part 100 , a pump part 200 and a housing part 300 . In the illustrated exemplary embodiment, the motor part 100 in...

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Abstract

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.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefits from Korean Patent Application No. 10-2011-0094788 filed on Sep. 20, 2011, the entire contents of which are hereby incorporated for all purposes of such reference. technical field [0003] The present invention relates to a pump structure for a urea SCR system, and more particularly, the present invention relates to such a pump structure for a urea SCR system, which can effectively prevent leakage of urea solution, thereby protecting its motor portion. Background technique [0004] According to the type of vehicle, vehicles can be classified into passenger cars, buses and trucks, and according to the type of fuel used, they can be further classified into gasoline vehicles that use gasoline, diesel vehicles that use diesel, and LPG that use liquefied petroleum gas vehicle. [0005] Compared with gasoline engines, diesel engines burn fuel under oxygen-excessive conditions to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C15/00F01N3/20F01N3/24B01D53/94
CPCF04C2/18F04C2/10F04C15/0034F04C2210/1083F04B17/03F02M37/08F01N3/10F04D25/06F04D29/08
Inventor 柳东明柳富烈咸昌昊李辅晟崔弼善
Owner HYUNDAI MOTOR CO LTD
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