Small-size closed chamber for measuring evaporative emission of fuel of motorcycle

An evaporative emission and airtight chamber technology, applied in the field of airtight chambers, can solve the problems of inaccurate testing, large deviation, poor reproducibility and consistency, and achieve the effects of accurate test data, good airtightness, and reduced equipment costs

Inactive Publication Date: 2016-07-20
CHINA TIANBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has relatively simple equipment and low purchase cost, but the test is not accurate, has large deviation, poor reproducibility and consistency, etc.

Method used

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  • Small-size closed chamber for measuring evaporative emission of fuel of motorcycle
  • Small-size closed chamber for measuring evaporative emission of fuel of motorcycle
  • Small-size closed chamber for measuring evaporative emission of fuel of motorcycle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 , figure 2 , image 3 as shown,

[0034] A small airtight chamber used for motorcycle fuel evaporation emission measurement, comprising an airtight chamber box 1, a gas collection bag 2, a temperature control device, a hydrogen flame ionization hydrocarbon analyzer, a pressure regulating device, a circulating air duct 3, Fuel tank heating system, frame 4, control platform 5;

[0035] The top of the airtight chamber box body 1 is provided with a suspended ceiling, and four gas collection bags 2 are placed on the suspended ceiling;

[0036] The airtight chamber box 1 is a rectangular box, and the circulating air duct 3 and the temperature adjustment device are fixed at the rear of the closed box. Two circulating fans are installed in the circulating air duct 3, and a pressure sensor is installed under the circulating fan;

[0037] The control box a6 is installed on the left side of the middle position inside the closed chamber box 1, and the control...

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PUM

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Abstract

The invention discloses a small-size closed chamber for measuring evaporative emission of fuel of a motorcycle.The small-size closed chamber comprises a closed chamber box body, gas collection bags, a temperature control device, a hydrogen flame ionization type hydrocarbon analyzer, a pressure adjusting device, a circulation air duct, a fuel tank heating system, a rack and a control platform; a suspended ceiling is arranged at the ceiling of the closed chamber box body, and the gas collection bags are placed on the suspended ceiling; the closed chamber box body is a cubic box body, the circulation air duct and the temperature control device are fixed to the back side of the closed chamber box body, and circulating fans are mounted in the circulation air duct.The closed chamber is good in air-tightness, accurate in measured data and good in test reproducibility.Meanwhile, the closed chamber fully takes particularity of a measured object and price acceptable to domestic enterprises into consideration, on the premise that relevant test laws and regulations are met, independent design and development are conducted, equipment cost is greatly lowered, the engineering purpose of miniaturizing a fuel evaporation closed chamber is achieved, and the closed chamber can meet requirements of national standards.

Description

technical field [0001] The invention relates to an airtight chamber, in particular to a small airtight chamber used for measuring the evaporative emission of motorcycle fuel. Background technique [0002] There are three main emission sources of motor vehicles polluting the environment: exhaust emissions, crankcase blow-by and fuel evaporation. Among them, exhaust emissions and crankcase blow-by have attracted the attention of motorcycle manufacturers and have taken corresponding control measures, but motorcycle fuel evaporation Emissions have not attracted enough attention. At present, only a few countries and regions in the world have implemented motorcycle fuel evaporative emission regulations. In 2007, my country also promulgated and implemented the "Motorcycle and Moped Fuel Evaporative Pollutant Emission Limits and Measurement Methods" standard. [0003] Fuel evaporative emissions from motor vehicles are one of the sources of HC pollutants in the atmosphere. Studying...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 洪彬王红美陶俊卫曹建军张健胡明
Owner CHINA TIANBO
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