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Two-wheeled motorcycle o2 sensor arrangement structure

A technology for oxygen sensors and motorized two-wheeled vehicles, which is applied in the direction of motor vehicles, exhaust devices, machines/engines, etc., can solve the problems that cannot be applied to motorized two-wheeled vehicles, and achieve the effects of increased rigidity, compact configuration, and prevention of deformation

Active Publication Date: 2021-02-09
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the structure proposed in Patent Document 1 has the following problem: it is limited to a multi-cylinder engine equipped with a plurality of exhaust pipes extending, and is provided with a beam member connecting left and right frame members, and cannot be applied to a motorcycle. Two-wheeled motor vehicles having other structures

Method used

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  • Two-wheeled motorcycle o2 sensor arrangement structure
  • Two-wheeled motorcycle o2 sensor arrangement structure
  • Two-wheeled motorcycle o2 sensor arrangement structure

Examples

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Embodiment Construction

[0054] Embodiments of the present invention will be described below based on the drawings. It should be noted that, in the following description, front and rear, left and right, and up and down refer to directions viewed from an occupant riding in a motorcycle equipped with an internal combustion engine.

[0055] [Whole structure of motorcycle]

[0056] First, based on figure 1 The overall structure of a motorcycle equipped with the oxygen sensor arrangement structure of the present invention will be described below.

[0057] which is, figure 1 It is the right side view of the motor two-wheel vehicle, and in the motor two-wheel vehicle 1 shown in the figure, 2 is positioned at the front upper part of the vehicle body ( figure 1 The right side is the head pipe in front of the vehicle body), and the steering shaft not shown is rotatably inserted in the head pipe 2. Furthermore, a steering handle 3 is attached to the upper end of the steering shaft. In addition, the upper end ...

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PUM

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Abstract

The present invention relates to an arrangement structure for an O2 sensor (25) of a two-wheeled motorcycle (1) in which a catalyst (14) is provided in an intermediate portion of an exhaust pipe (13)extending from an engine (12) and the O2 sensor (25) is attached to the exhaust pipe (13) downstream from the catalyst (14), the arrangement structure being configured such that the O2 sensor (25) isdisposed further inward in the vehicle width direction than the exhaust pipe (13) and at a position overlapping the engine (12) in a bottom view and a protective wall (29) for protecting the O2 sensor(25) is attached to the exhaust pipe (13) forwardly of the O2 sensor (25). According to this configuration, this two-wheeled motorcycle O2 sensor arrangement structure is capable of protecting the O2sensor from disturbances, such as flying stones, in any two-wheeled motorcycle regardless of the form of the two-wheeled motorcycle.

Description

technical field [0001] The present invention relates to an arrangement structure of an oxygen sensor for detecting the oxygen concentration of exhaust gas discharged from an engine of a motorcycle. Background technique [0002] In motorcycles, in order to improve the properties of the exhaust gas discharged from the engine and realize the improvement of the fuel consumption rate, it is performed to detect the oxygen concentration of the exhaust gas by an oxygen sensor, and to control the fuel supply amount supplied to the engine so that based on the detected oxygen The air-fuel ratio (A / F) calculated from the concentration becomes the target air-fuel ratio. [0003] In addition, the degradation of the catalyst provided in the middle of the exhaust pipe was also detected by the oxygen sensor. In this case, the oxygen sensor is disposed downstream of the catalyst in the exhaust pipe (downstream in the flow direction of exhaust gas), and detects the degree of catalyst degradat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62J45/41B62J45/42F01N13/00F01N13/08
CPCF01N13/08B62J45/41B62M7/02B62K11/04B62J23/00B62J45/42F01N2590/04F01N2560/025F01N13/008F01N2340/04
Inventor 仓泽侑史久保俊博
Owner HONDA MOTOR CO LTD