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Exhaust gas analyzing device and exhaust gas analyzing method

A waste gas analysis, waste gas technology, applied in the direction of analysis of materials, particle suspension analysis, suspension and porous material analysis, etc., can solve problems such as the measurement of waste gas particulate matter that is not mentioned

Inactive Publication Date: 2009-01-14
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, Patent Document 1 makes no mention of measurement of particulate matter contained in exhaust gas

Method used

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  • Exhaust gas analyzing device and exhaust gas analyzing method
  • Exhaust gas analyzing device and exhaust gas analyzing method
  • Exhaust gas analyzing device and exhaust gas analyzing method

Examples

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Embodiment Construction

[0066] The following is a detailed description of an embodiment in which an exhaust gas analyzer according to the present invention is used as an analyzer for exhaust gas exhausted from an internal combustion engine (engine) of an automobile with reference to the accompanying drawings. figure 1 The configuration of main parts of the exhaust gas analyzer according to the present embodiment installed in an automobile is shown; figure 2 The picture is installed in the engine stand figure 1 The configuration of the main components of the exhaust gas analyzer is shown; FIG. 3 is a perspective view illustrating an exploded state of a sensor unit and adjacent components; and Figure 4 The details of the sensor unit are shown. FIG. 5 is a block diagram illustrating an overall configuration of an exhaust gas analyzer including a main part configuration of a laser oscillation / light receiving controller and a signal analyzer.

[0067] exist figure 1 Referring to FIG. 3 , the exhaust ...

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Abstract

An exhaust gas analyzing device capable of measuring in real time the concentration of particulate materials contained in exhaust gas from an internal combustion engine, comprising an exhaust gas passing hole (21) that admits exhaust gas exhausted from an internal combustion engine, an optical fiber (25) for applying a laser beam in a direction perpendicular to an exhaust gas flow running through this exhaust gas passing hole, a detector (26) receiving a laser beam after passed through exhaust gas, a photodetector (71) receiving Mie scattering light produced from particulate materials PM contained in exhaust gas by laser beam irradiation, and a personal computer (45) as a computing unit for computing the concentrations of components in exhaust gas based on light reception data on transmitted light intensity obtained from the detector (26) and also computing the concentrations of particulate materials contained in exhaust gas based on an actually measured data on scattering light intensity obtained from the photodetector (71); and an exhaust gas analyzing method.

Description

technical field [0001] The present invention relates to an exhaust gas analyzer and an exhaust gas analysis method which calculate the concentration of components contained in exhaust gas discharged from an internal combustion engine of an automobile or the like, and which calculate the concentration of particulate matter contained in the exhaust gas. Background technique [0002] In general, methods and devices for measuring various components contained in exhaust gas from internal combustion engines of automobiles and the like have been proposed. For example, Patent Document 1 discloses a vehicle capable of installing an NDIR (non-dispersive infrared spectroscopy detection technology) gas analyzer, an exhaust gas flow meter, and an arithmetic processing circuit. The concentration of HC (hydrocarbons) in the exhaust gas, the exhaust gas flowmeter is used to continuously measure the flow of exhaust gas flowing through the exhaust pipe, and the operation processing circuit pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39G01N21/49G01N15/06G01N21/53
CPCG01N21/3504G01N2021/4726G01N15/0205G01N2021/516G01N2015/0693G01N21/532G01N15/075G01N21/39G01N21/49G01N15/06
Inventor 山荫正裕后藤胜利出口祥启牟田研二近藤明生
Owner TOYOTA JIDOSHA KK
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