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Device for purifying waste gas from vehicle

An exhaust gas purification device and vehicle technology, applied in the direction of exhaust device, electric control of exhaust treatment device, silencer device, etc., can solve the problem of insufficient secondary air intake, poor operation of solenoid valve 162, and vehicle negative pressure suction Insufficient and other issues

Inactive Publication Date: 2006-07-05
KYMCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But, the introduction port 181 of the secondary air introduction pipe 18 added by the prior art is too far away from the two exhaust pipes 14 of the engine 11, causing the negative pressure suction of the vehicle to be insufficient, causing the secondary air intake to be insufficient, resulting in The working efficiency of the catalytic converter 17 is on the low side, and due to the high temperature of the exhaust gas discharged from the engine 11, the solenoid valve 162 is also malfunctioning or even damaged

Method used

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  • Device for purifying waste gas from vehicle
  • Device for purifying waste gas from vehicle
  • Device for purifying waste gas from vehicle

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Embodiment Construction

[0019] The aforementioned and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the second preferred embodiment with reference to the drawings.

[0020] Before the description, it should be noted that in the following structural descriptions, similar elements are named with the same numbers.

[0021] refer to figure 2 The vehicle exhaust gas purification device 2 of the present invention is used in vehicles such as motorcycles and all-terrain vehicles (for ease of illustration, the detailed structure of the vehicle is not drawn in the figure), the vehicle has an engine 31, an electronic control unit 33 and a catalytic converter 34 . The engine 31 is a twin-cylinder engine and has two spaced intake pipes 313, two spaced exhaust ports 314, 314', and two nozzles 315 respectively arranged on the two air intake pipes 313, wherein the electronic control unit 33 can control the amount of fuel...

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Abstract

A device for purifying waste gas from vehicle is prepared as setting hydrogen content sensor on the first exhaust pipe to detect air ¿C fuel ratio of waste gas from exhaust pipe, setting secondary air guide ¿C in pipe on the second exhaust pipe near to engine for guiding outside air into second exhaust - pipe, connecting one ¿C way valve on said guide in pipe to prevent waste gas from leakage at this pipe, helping oxidation by using said sensor to detect waste gas composition and by guiding in outside air with secondary air guide in pipe coordinately.

Description

【Technical field】 [0001] The invention relates to an exhaust gas purification device, in particular to an exhaust gas purification device used on vehicles. 【Background technique】 [0002] refer to figure 1 A conventional automobile engine exhaust device 1 comprises an engine 11, an air filter 12, two intake pipes 13 for introducing the air from the air filter 12 into the engine 11 respectively, and two intake pipes 13 for respectively burning the engine 11. Exhaust pipe 14 for exhaust gas discharge, an outlet pipe 15 that connects the two exhaust pipes 14 and can be used to export exhaust gas, an electronic control unit 16 (that is, an ECU familiar in the industry) that controls the operation of engine 11, and an outlet pipe that is fixed on the outlet pipe The catalytic converter 17 of 15 middle sections. Wherein, the electronic control unit 16 can further control two nozzles 161 respectively disposed at the ends of the two intake pipes 13 and close to the engine 11 . ...

Claims

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Application Information

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IPC IPC(8): F01N3/30F01N11/00F02D43/00
CPCY02T10/47Y02A50/20Y02T10/40
Inventor 陈仲颖黄祥熙
Owner KYMCO