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Double-row muffler of motorcycle with engine management system

A technology for mufflers and motorcycles, applied in electrical control, muffler devices, exhaust devices, etc., can solve problems such as increasing ECU workload, increasing manufacturing costs, and reducing the accuracy of oxygen content information, saving resources, space, and costs. Inexpensive and simple structure

Inactive Publication Date: 2010-02-17
力帆科技(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The shortcoming of prior art is: two exhaust pipes of double row motorcycle all will discharge motorcycle tail gas, if three-way catalyst and oxygen sensor are adorned in two exhaust pipes, both have increased manufacturing cost, have increased again. The workload of the ECU, if the three-way catalyst and the oxygen sensor are only installed in one exhaust pipe, the accuracy of the oxygen content information will be reduced, and it is difficult to ensure that the exhaust emission of the motorcycle meets the National III standard

Method used

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  • Double-row muffler of motorcycle with engine management system
  • Double-row muffler of motorcycle with engine management system
  • Double-row muffler of motorcycle with engine management system

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 , 2 Shown: a double-row muffler for an EFI motorcycle, which is composed of a catalyst connecting pipe 2, a three-way input pipe 3, an output piece 4, an oxygen sensor 5, a double exhaust pipe 6, a punching bag 7 and a netted three-way catalyst 1 , a catalyst connection pipe 2 is installed between the double exhaust pipe 6 and the outlet tube 7, the front end of the catalyst connection pipe 2 communicates with the double exhaust pipe 6 through the three-way input pipe 3, and the rear end of the catalyst connection pipe 2 is outputted Part 4 communicates with the outlet tube 7, and the three-way catalyst 1 is installed in the catalyst connecting pipe 2;

[0022] The three-way input pipe 3 is a three-way pipe whose longitudinal section is an isosceles trapezoid. Distributed at the bottom of the isosceles trape...

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Abstract

The invention discloses a double-row muffler of a motorcycle with an engine management system, which comprises an oxygen sensor and a netlike three-element catalyst, and is characterized in that the three-element catalyst is arranged in a catalyst connecting pipe; one end of the catalyst connecting pipe is provided with a tee input pipe, while the other end is connected with an output piece; output ports of the tee input pipe is welded on the catalyst connecting pipe; the oxygen sensor is fixed between two output ports of the tee input pipe; the oxygen sensor acquires information on the oxygencontent in the tee input pipe, and the information on the oxygen content is output by a conducting wire; an input port of the output piece is welded on the catalyst connecting pipe; and an output port of the output piece is provided with a hoop. The double-row muffler of the motorcycle with the engine management system has the significant advantages of having a simple structure and low cost, being capable of providing a group of accurate and reliable information on the oxygen content of an exhaust pipe for an ECU, effectively saving the resource space of the ECU, controlling the oil supply and the oxygen supply of an engine by the ECU, and ensuring that the tail gas of the motorcycle accords with the national III standard.

Description

technical field [0001] The invention belongs to the technical field of motorcycle exhaust, in particular to a catalyst muffler for an electric jet motorcycle. Background technique [0002] With the continuous development of motorcycle technology, EFI technology has replaced carburetor technology. With the continuous improvement of environmental protection requirements, the National III standard has put forward higher requirements for vehicle exhaust emissions. The exhaust pipe of the carburetor motorcycle is directly connected to the motorcycle punching bag, and the muffler is installed on the punching bag to form the early motorcycle exhaust system. A three-way catalyst is installed on the air pipe, and the three-way catalyst absorbs NO, CO, and hydrocarbons emitted by the motorcycle engine, and an oxygen sensor is installed in the exhaust pipe upstream of the three-way catalyst, and the oxygen content information is sent to the ECU, and the ECU controls the engine The amo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/28F01N7/08F02D41/02F02D41/24
CPCY02T10/12
Inventor 孙克友杜礼超王亚军马江肖波
Owner 力帆科技(集团)股份有限公司
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