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Pre-heating warmer of diesel engine exhaust aftertreatment device and warming method

A technology for after-treatment of exhaust and diesel engines, which is applied in the direction of exhaust devices, engine components, machines/engines, etc. It can solve problems such as ignition failure, poor ignition reliability, and secondary environmental pollution, so as to avoid interference and influence, Simplified ignition device and low regenerative energy consumption

Active Publication Date: 2013-05-15
GUIZHOU HUANGDI DIESEL ENGINE CLEANER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings: First, the diesel engine exhaust emission purification system purifies the diesel fuel by controlling the ignition coil to control the spark plug to realize the ignition of the diesel oil. Not only the reliability is subject to the composition of the circuit structure, but also the condition of the spark plug itself. The reliability is poor; the second is that the system cannot ignite diesel oil in a low-temperature state, especially in the sub-zero state, under the condition of tens of degrees below zero, it is impossible to achieve low-temperature ignition; the third is that ignition failure directly produces secondary environmental pollution

Method used

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  • Pre-heating warmer of diesel engine exhaust aftertreatment device and warming method
  • Pre-heating warmer of diesel engine exhaust aftertreatment device and warming method
  • Pre-heating warmer of diesel engine exhaust aftertreatment device and warming method

Examples

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Embodiment 1

[0016] Embodiment 1: with reference to attached Figure 1-4 and Figure 7. A heating device for a diesel engine exhaust post-processing device. The mandrel 3 (sleeve 3) is set on the heating rod 1 and one end of the heating rod 1 is exposed outside the mandrel 3 and constitutes a high-temperature ignition head 103. The heating rod 103 is another One end is connected to the power supply and is provided with a ceramic sheath 22, and the two ends of the mandrel 3 are sealed and connected with the end covers of the diesel gasification chamber 2, such as welding sealing, sintering sealing and many other ways. The regenerator 4 is set on the mandrel 3 and is located in the diesel gasification chamber 2. One end of the combustion chamber 12 is connected to the diesel gasification chamber 2 and covered on the high-temperature ignition head 103. The oil delivery pipe 8 is placed on the wall of the combustion chamber 12. The fuel injection pipe part in the fuel delivery pipe 8 passes ...

Embodiment 1-1

[0017] Embodiment 1-1: On the basis of Embodiment 1, the length of the heating rod exposed outside the mandrel 3 is less than 15 mm, but it is not limited thereto.

Embodiment 1-2

[0018] Embodiment 1-2: On the basis of Embodiment 1, the heat accumulator 4 is formed by stacking fins with different diameters, one large and one small.

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Abstract

The invention relates to a pre-heating warmer of a diesel engine exhaust aftertreatment device and a warming method which are capable of raising the exhaust temperature of a diesel vehicle and regenerating a diesel engine exhaust aftertreatment device in ultralow temperature below zero under the condition that an ignition system is not needed. A core rod is sleeved on a heating rod, and one end of the heating rod is exposed out of the core rod to form a high-temperature ignition head. Two ends of the core rod are connected with end covers at two ends of a diesel gasification cavity in a sealed mode, and a heat accumulator is sleeved on the core rod and is placed in the diesel gasification cavity. One end of an ignition cavity is connected with the diesel gasification cavity and is covered on the high-temperature ignition head. An oil delivery pipe is placed outside a wall of the ignition cavity, and an oil spraying pipe part in the oil delivery pipe penetrates through the end covers of the diesel gasification cavity and is placed in the diesel gasification cavity. An oil gas nozzle is formed in an end cover, at one end of the heating rod, of the diesel gasification cavity.

Description

technical field [0001] The invention relates to a diesel engine exhaust post-processing device preheating that can not only increase the exhaust temperature of a diesel vehicle under the condition of no ignition system, but also regenerate the diesel engine exhaust post-processing device at an ultra-low temperature below zero The invention relates to a temperature raising device and a method for raising the temperature, which do not cause secondary pollution of diesel oil, and belong to the field of manufacturing diesel igniters. Background technique [0002] CN101178020A, the name "diesel engine exhaust emission purification system", is composed of a diesel engine exhaust particle filter, a mixed gas pipeline, a combustion-supporting air pipeline, and an electronic control unit with a wall-flow filter body. A sensor for measuring pressure, a temperature sensor installed on the burner, and a temperature sensor respectively installed in front of and behind the exhaust particu...

Claims

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Application Information

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IPC IPC(8): F01N3/025F01N3/20
CPCY02A50/20
Inventor 黄黎敏黄利锦
Owner GUIZHOU HUANGDI DIESEL ENGINE CLEANER
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