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System for introducing a hazardous substance reduction medium into the exhaust air

A technology for harmful substances and media, applied in exhaust treatment, exhaust device, air quality improvement and other directions, can solve problems such as time-consuming, affecting the maximum filling volume of the tank system, and requiring structural space, avoiding mechanical hazards and ensuring ice pressure. Strength, the effect of avoiding shaking

Inactive Publication Date: 2017-03-08
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a design of this type, which is feasible in principle, is relatively complex in practice and in some cases requires considerable installation space, which can adversely affect the maximum filling volume of the tank system

Method used

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  • System for introducing a hazardous substance reduction medium into the exhaust air
  • System for introducing a hazardous substance reduction medium into the exhaust air
  • System for introducing a hazardous substance reduction medium into the exhaust air

Examples

Experimental program
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Embodiment Construction

[0034] exist Figure 1A and 1B A simplest embodiment of a system 110 according to the invention for introducing a pollutant-reducing medium into exhaust gas is shown. The system 110 includes a storage container 111 having a flexible storage bag 112 . Other elements of the system are not shown, such as dosing systems, piping or the like for injecting the pollutant-reducing medium into the exhaust gas. Such components may additionally be included in the system 110 . The flexible storage bag 112 is designed in this exemplary embodiment as a flexible plastic bag and has a flexible film wall 114 and a removal opening 116 . The removal opening 116 is closed in the embodiment shown by a simple closing device 118 . Figure 1A The flexible storage bag 112 is shown here in a state in which it is filled with a supply of reducing agent 120 , for example AdBlue. on the contrary Figure 1B A situation is shown in which the flexible storage bag 112 is emptied and folded together.

[003...

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PUM

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Abstract

The invention relates to a system (110) for introducing a pollution-reducing medium, especially a reducing agent (120) and / or a reducing agent precursor, into an exhaust gas flow. The system (110) comprises at least one reservoir (111) for accommodating a stock in the pollution-reducing medium. Said reservoir (111) comprises at least one flexible storage bag (112), especially a plastic bag, for accommodating the pollution-reducing medium. The flexible storage bag (112) has at least one flexible film wall (114) and preferably at least one withdrawal opening (116).

Description

technical field [0001] The present invention relates to a system and method for introducing a hazardous substance reducing medium into exhaust gas and a flexible storage bag for use in the system. Background technique [0002] The present invention arises from known methods and devices for aftertreatment of exhaust gases, in particular of internal combustion engines. Technologies are known in which a harmful substance-reducing medium, in particular a fluid medium (eg liquid or gas), is dosed, eg injected, into the exhaust gas. An important example is the injection of an aqueous urea solution (HWL) into the exhaust pipe of a diesel engine in a passenger or cargo vehicle in order to reduce the content of nitrogen oxides (NOx) in the exhaust gas, but the present invention does not. limited to this example. Here, NOx is reduced with the formation of nitrogen gas and water in the reduction reaction. Such methods are often also referred to as SCR methods (SCR: selective catalyt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/20
CPCF01N3/206F01N3/2066F01N2610/02F01N2610/1406F01N2610/1466Y02A50/20Y02T10/12
Inventor R·黑贝尔J·布伦斯
Owner ROBERT BOSCH GMBH
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