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Compact hydrocarbon dosing and mixing system and method

A hydrocarbon, quantitative supply technology, used in machines/engines, mechanical equipment, engine components, etc., can solve the problems of inconvenient operation, maintenance, installation and disassembly of after-treatment systems

Inactive Publication Date: 2018-06-29
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adapting to a suitable distance between the injection unit and the catalytic unit results in a large size of the aftertreatment system
The large size of the aftertreatment system can cause inconveniences related to the handling, maintenance, installation and removal of the aftertreatment system

Method used

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  • Compact hydrocarbon dosing and mixing system and method
  • Compact hydrocarbon dosing and mixing system and method
  • Compact hydrocarbon dosing and mixing system and method

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Embodiment Construction

[0017] The description set forth below in conjunction with the accompanying drawings is intended as a description of various embodiments of the subject matter and is not necessarily intended to represent the only embodiments. In certain instances, the description includes specific details for the purpose of providing an understanding of the described subject matter. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the described subject matter. Wherever possible, corresponding or like reference numerals have been used throughout the drawings to refer to the same or corresponding parts.

[0018] Any reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, characteristic, operation, or function described in connection...

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PUM

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Abstract

A system to dose and mix hydrocarbon is disclosed, which includes a twin-parallel turbocharger equipped engine, a mixer coupled to exhaust outlets of the turbines of the twin-parallel turbocharger equipped engine, and a hydrocarbon dosing unit coupled to the mixer. A method of manufacturing the compact hydrocarbon dosing and mixing system is also disclosed, as is a method of dosing and mixing hydrocarbon.

Description

technical field [0001] The present invention relates to an aftertreatment system, and more particularly to a compact hydrocarbon dosing and mixing system and a method of making the same. Background technique [0002] As technology advances, machines with engines include aftertreatment systems to treat the exhaust from the engine. The aftertreatment system typically includes injection, catalytic devices, and particulate matter filters to treat the exhaust for harmful emissions. The injection device injects hydrocarbons into the exhaust gas flowing towards the catalytic device and particulate matter filter. The injection of hydrocarbons can lead to an increase in the temperature of the exhaust gas through oxidation of the hydrocarbons on the catalytic device. [0003] It is relevant to ensure that the hydrocarbons injected into the exhaust vaporize before entering the catalytic unit. In order to ensure the vaporization of the hydrocarbons, the injection unit should be arran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/20F01N5/04F02B37/00F02B39/00
CPCF01N3/20F01N5/04F02B37/001F02B39/00F01N3/2892F01N3/36F01N13/107F01N2240/20F01N2610/03F02B37/007F02B37/183Y02T10/12
Inventor E·L·凯恩J·L·克利福德S·帕达特
Owner CATERPILLAR INC