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Microwave heating regeneration diesel oil engine carbon smoke particulate filter

A particle filter and microwave heating technology, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve problems such as gaps and large expansion coefficients

Inactive Publication Date: 2005-04-27
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The material of this kind of filter body is generally SiC material, and its expansion coefficient is too large, which has a big gap with practical use.

Method used

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  • Microwave heating regeneration diesel oil engine carbon smoke particulate filter
  • Microwave heating regeneration diesel oil engine carbon smoke particulate filter

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Experimental program
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Embodiment Construction

[0018] As shown in Figure 3, the present invention comprises porous ceramic tubes 4 distributed at equal intervals, the nozzles at one end of the porous ceramic tubes 4 are blocked with ceramics 5 at intervals, and the nozzles at the other end of the porous ceramic tubes 4 are opposite to the nozzles at one end. A wall-flow honeycomb ceramic filter with ceramic plugging 5 for intervals, and an electronic control system 7 . A microwave element 3 is installed outside the wall-flow honeycomb ceramic filter, and a microwave heating tube is used in Fig. 3. The wall-flow honeycomb ceramic filter and the microwave element 3 are installed in the metal material shell 2, and the exhaust gas at one end of the metal material shell 2 The inlet end and the exhaust gas outlet end of the other end of the metal material casing 2 are respectively provided with an intake pressure sensor 1 and an exhaust pressure sensor 6, and one end of the microwave element 3 is connected to the positive pole of...

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Abstract

The present invention is microwave heating for regenerating carbon smoke particle filter in diesel engine. There are microwave element installed outside the wall flow type honeycomb ceramic filter, metal casing for the filter and the microwave element to be installed inside, and inlet gas pressure sensor and outlet gas pressure sensor set separately in the inlet end and the outlet end of the metal casing. The microwave element has its one end connected via a relay to the positive electrode of the power supply and the other end to the negative electrode; and the inlet gas pressure sensor, the outlet gas pressure sensor and the relay are connected separately with the electronic control system. Under the control of the electronic control system, the microwave element works timely and the generated microwave heats and burns out the carbon particle deposited onto the filtering material to realize the regeneration of the filtering material.

Description

technical field [0001] The invention relates to a filter, in particular to a microwave heating regeneration diesel engine soot particle filter. Background technique [0002] Due to the advantages of diesel engines in terms of fuel economy, power, durability and emissions, dieselization of automobiles has become an international trend. Compared with gasoline engines, the emissions of harmful gases HC and CO from diesel engines are quite low. The CO emissions of diesel engines are only about 1 / 10 of those of gasoline engines. 80 times. Therefore, particulate emission has been one of the most important factors restricting the development of diesel vehicles. Diesel engines emit different particles than gasoline engines. Gasoline engines are mainly sulfuric acid, sulfates and low molecular substances. Diesel engine exhaust particulates are fine respirable particles composed of solid carbon nuclei that adsorb countless compounds, and are a serious environmental hazard. [000...

Claims

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Application Information

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IPC IPC(8): F01N3/028
Inventor 熊树生楚书华浦甲辰陈理韩松李健
Owner ZHEJIANG UNIV
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