Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for measuring a quantity of a reducing agent, preferably NH3, contained in a vessel

A technology of measuring equipment and reducing agent, applied in the direction of measuring capacity, volume measuring instrument/method, mechanical equipment, etc., can solve the problem of local pollution of diesel engines, etc.

Inactive Publication Date: 2014-02-19
AAQIUS & AAQIUS
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This reduces local pollution (NOx) and reduces fuel consumption (CO 2 ) poses particular difficulties for diesel engines, whose lean burn is accompanied by intractable NOx emissions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for measuring a quantity of a reducing agent, preferably NH3, contained in a vessel
  • Device for measuring a quantity of a reducing agent, preferably NH3, contained in a vessel
  • Device for measuring a quantity of a reducing agent, preferably NH3, contained in a vessel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Various embodiments according to the invention disclosed below rely on the fact that during the absorption reaction, the immobilization of ammonia in salts of the metal chloride type is accompanied by an increase in volume, which then occupies a larger volume than that of the pure salt ( 4 to 5 times the ratio). The increase in the volume of the salt depends not only on the expansion of its crystal lattice, but also on its fractionation, thus leaving free spaces between the crystallites of the ammonia compound.

[0029] According to the invention, the storage material preferably comprises expanded natural graphite, which renders the material better thermal conductivity on the one hand and robustness on the other hand. according to figure 1 The preparation of this storage material shown, expanded natural graphite was added to the salt before being compacted according to the unidirectional axis. In this way, the expansion caused by the saturation of the material with am...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a device for measuring a quantity of a reducing agent, preferably NH3, contained in a vessel (10; 110; 210) containing a storage material (11; 111; 211) in which the reducing agent is stored, the volume of the storage material (11; 111; 211) varying depending on the quantity of reducing agent that it contains. The measuring device comprises means (13, 14, 14'; 113, 114; 213, 214) associated with the vessel (10; 110; 210), said means being suitable for measuring the quantity of the reducing agent stored in the storage material (11; 111; 211) depending on the volume of the latter.

Description

technical field [0001] The invention relates to a device for measuring the level of reducing agent contained in a container. The invention also relates to a method for controlling the injection of a reducing agent into the exhaust gas of a motor vehicle. Background technique [0002] Transportation-related emissions of pollutants have been at the forefront for industrial progress for nearly three decades. Increasingly stringent emission limits for the four regulated pollutants (carbon monoxide, hydrocarbons, nitrogen oxides (NOx), particulate matter) have resulted in significant improvements in air quality, especially in large cities. [0003] The ever-increasing use of motor vehicles requires continued efforts to further reduce these pollutant emissions. Reducing nitrogen oxides (NOx) therefore remains a complex issue in the context of stricter European limits in anticipation of the entry into force of Euro 6 in 2015. Pollution prevention technology under all driving con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/20F17C11/00G05D9/00G05D15/00
CPCY02T10/24F01N2610/02F01N3/208F01N2900/1814F17C11/00F01N2900/1808Y02E60/321F01N3/2066F01N2610/06F01N2900/102F01N2610/1406G01F22/02G01N33/0054Y02A50/20Y02E60/32Y02T10/12F01N3/20G01F11/00G05D9/00
Inventor A·奥杜安
Owner AAQIUS & AAQIUS