Catalyst arrangement construction of two-wheel motor vehicle

A technology for motorized two-wheeled vehicles and catalysts, which is applied to machines/engines, noise reduction devices, exhaust devices, etc., which can solve problems such as inability to ensure engine output, cost increase, and large exhaust resistance, so as to suppress cost increases and reduce exhaust gas Temperature, the effect of reducing exhaust resistance

Inactive Publication Date: 2011-08-03
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] If only the main catalyst 22 is used for activation, the main catalyst 22 is respectively arranged to replace the sub-catalysts 19, 20 next to the front side exhaust pipe 7 and the rear side exhaust pipe 8, then the large main catalyst 22 may become a large exhaust gas. air resistance, can not ensure engine output
[0008] In addition, when a plurality of catalysts are provided such as the main catalyst 22 and the sub-catalysts 19, 20, the cost increases

Method used

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  • Catalyst arrangement construction of two-wheel motor vehicle
  • Catalyst arrangement construction of two-wheel motor vehicle
  • Catalyst arrangement construction of two-wheel motor vehicle

Examples

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Embodiment Construction

[0035] The best mode for carrying out the present invention will be described below with reference to the drawings. The drawings are viewed in the direction of the symbols.

[0036] figure 1 It is a side view of a motorcycle having a catalyst arrangement structure of the present invention. The motorcycle 10 includes a frame 11 serving as a skeleton, and a front fork 13 mounted on a head pipe 12 provided at the front end of the frame 11 is freely steerable. , the steering handle 14 installed on the top of the front fork 13, the front wheel 17 installed on the lower end of the front fork 13 through the axle 16, and the engine 18 supported by the vehicle frame 11 are installed on the shaft freely swinging up and down through the pivot 22. The rear fork 23 of the intermediate frame 21 constituting the center of the vehicle frame 11 is attached to the rear wheel 26 at the rear end of the rear fork 23 via the axle 24, and is mounted across the rear of the vehicle frame 11 and the ...

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Abstract

The catalyst of the maneuvering two-wheeled vehicle of the invention is arranged and structured on a main frame extended from head towards rear of the vehicle frame and a lower extending frame extended from head tube towards to rear and lower inclination of the vehicle frame, the rear of the lower extending frame is arranged with an engine, the exhaust pipe extended from the engine firstly towards lower, then towards rear is arranged with a metal honeycomb type catalyst; wherein, the front and the back of the metal honeycomb type catalyst of the exhaust pipe forms a first conic section and a second conic section which are gradually expands towards the metal honeycomb type catalyst, the metal honeycomb type catalyst is arranged along the lower extending frame. Thus, while improving the purification efficiency of the metal honeycomb type catalyst, the engine output is improved at the same time, and the cost is reduced.

Description

technical field [0001] The present invention relates to an improvement of a catalyst arrangement structure of a motorcycle. Background technique [0002] As a catalyst arrangement structure of a conventional motorcycle, a configuration in which a honeycomb catalyst is arranged in a plurality of exhaust pipes extending from a V-shaped engine is known (for example, refer to Patent Document 1). [0003] [Patent Document 1] Japanese Patent No. 3242488 [0004] The following describes the patent document 1 figure 2 . [0005] The front side exhaust pipe 7 and the rear side exhaust pipe 8 are respectively connected to the front side cylinder 6a and the rear side cylinder 6b of the V-type 2-cylinder engine, and the respective ends of the front side exhaust pipe 7 and the rear side exhaust pipe 8 Connected to the integrated exhaust pipe 21, the honeycomb secondary catalyst 19 is arranged in the front exhaust pipe 7, and the honeycomb secondary catalyst 20 is arranged in the rear ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/10F01N3/28
CPCY02A50/20
Inventor 藤泽庸一堀正佳后藤明男仓光秀知中陈诚
Owner HONDA MOTOR CO LTD
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