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Diesel particulate filter with washcoat to enhance filter performance

A particulate filter, diesel engine technology, applied in the direction of coating, filtration separation, machine/engine, etc., can solve the problems of engine fuel efficiency impact, increased cost, etc.

Active Publication Date: 2017-09-08
DEERE & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many of these systems can have a negative impact on the fuel efficiency of the engine to which the system is connected
In some cases, the mechanical integrity of the engine and the use of such systems increases the cost of manufacturing and operating machines that use diesel engines

Method used

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  • Diesel particulate filter with washcoat to enhance filter performance
  • Diesel particulate filter with washcoat to enhance filter performance
  • Diesel particulate filter with washcoat to enhance filter performance

Examples

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Embodiment Construction

[0020] For the purpose of promoting an understanding of the principles of the novel technology, reference will now be made to its preferred embodiments, and specific language will be used to describe the preferred embodiments. However, it should be understood that it is not intended to limit the scope of the novel technology, such as the principle of the novel technology, it is expected that the changes, modifications, and other applications that those skilled in the art involved in the novel technology will generally think of fall into Within the scope of this disclosure and reasonable inferences derived therefrom.

[0021] As used herein, unless expressly stated or expressly implied otherwise, the term "about" refers to a range of values ​​plus or minus 10%; for example, about 1.0 includes values ​​from 0.9 to 1.1.

[0022] Some embodiments of the invention are described in terms of the range of the percentage of particles having a specific size range in the washcoat or washcoat ...

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Abstract

The invention discloses a diesel particulate filter, comprising: a porous ceramic substrate having a first surface in contact with exhaust gas from a diesel engine and a second surface in contact with the atmosphere, and wherein the first surface and The second surface shares a porous wall therebetween; a set of heat-resistant microparticles, wherein the diameter of the microparticles is on the order of about 1 micron to about 40 microns; a set of heat-resistant colloidal particles, Wherein, the diameter of the colloidal particles is on the order of about 1 nm to about 10 nm, wherein the microparticles and the colloidal particles are deposited on at least one surface of the porous ceramic matrix.

Description

Technical field [0001] The invention relates to a diesel particulate filter and its manufacturing materials and methods. Background technique [0002] Diesel engines are the preferred torque-generating devices used in a wide range of applications, from use in transportation, such as heavy trucks, trains, field agricultural and mining equipment, to mass production of on-site power, to name a few. Diesel engines are almost unparalleled in terms of power to mass ratio, and the relative safety of their fuel makes diesel engines almost the only choice for applications that require mobile, reliable, and safe high torque sources. [0003] Due to the type of fuel they burn and due to their design, diesel engines always produce soot. The soot itself is a mixture of carbon particles in the majority and droplets of liquid including hydrocarbons. In general, the larger the diesel engine, the more smoke and dust it produces. Therefore, soot is a problem for all diesel engines, especially lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/035
CPCB01D39/20B01D2239/0478Y10T29/49345
Inventor 托马斯·M·哈里斯
Owner DEERE & CO