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Exhaust device of motorcycle, engine exhaust system and motorcycle

A technology for exhaust devices and motorcycles, applied in exhaust devices, engine components, machines/engines, etc., can solve problems such as long exhaust paths, and achieve the effect of improving exhaust purification performance

Active Publication Date: 2022-03-08
SUZUKI MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In addition, in the case of a multi-cylinder engine, the exhaust path to the catalyst body tends to be longer because the catalyst body is arranged in the manifold or behind the manifold.

Method used

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  • Exhaust device of motorcycle, engine exhaust system and motorcycle
  • Exhaust device of motorcycle, engine exhaust system and motorcycle
  • Exhaust device of motorcycle, engine exhaust system and motorcycle

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] Embodiments of the present invention will be described below based on the drawings.

[0025] In the following embodiments, an example in which the motorcycle exhaust device according to the present invention is applied to a two-cylinder motorcycle will be described, but the vehicle type is not limited thereto. For example, this exhaust device can also be applied to a multi-cylinder engine such as a four-cylinder or a single cylinder. In addition, the exhaust device can also be applied to vehicles such as a three-wheeled vehicle, a four-wheeled vehicle, or a snowmobile other than motorcycles.

[0026] In addition, in the following embodiments, the indications of up and down, left and right, and front and rear are based on the driver (rider) when the vehicle is riding. In each figure, the vehicle front is indicated by arrow FW, the vehicle rear is indicated by arrow BW, the vehicle left direction is indicated by arrow L, the vehicle right direction is indicated by arrow ...

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PUM

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Abstract

The present invention provides an exhaust device for a motorcycle, an engine exhaust system, and a motorcycle that improve exhaust purification performance by using waste heat. The exhaust device (50) of the motorcycle is equipped with: an upstream side exhaust pipe (53, 54) connected to the exhaust port of the cylinder head (32) of the engine (23); ), the inflow head chamber is connected to the end of the upstream side exhaust pipe (53, 54); the clean room (56), which has an inflow opening to the inflow head chamber (57) and accommodates a catalyst body inside; And the downstream side exhaust pipe (55), the downstream side exhaust pipe is connected to the outflow side of the purification chamber (56), and the catalyst case (52) having the inflow head chamber (57) and the purification chamber (56) is arranged in the cylinder The cover (32) is disposed in front and below, and above the lower end of the crankcase (34).

Description

technical field [0001] Embodiments of the present invention relate to a motorcycle exhaust technology. Background technique [0002] Exhaust gas discharged from the cylinder head of the engine passes through an engine exhaust system connected to the cylinder head, becomes clean air, and is discharged toward the rear of the vehicle. [0003] Many types of engine exhaust systems are conventionally configured such that a muffler that is open to the atmosphere near the rear wheels is connected to an exhaust device that extends rearward from the cylinder head along the bottom of the engine. Exhaust gas is purified into clean air that can be discharged into the atmosphere while passing through the catalyst body housed in the exhaust device near the bottom of the engine or at the rear of the engine. [0004] When the engine is a multi-cylinder engine, an engine exhaust system of the type in which part or all of the exhaust pipes connected to the cylinders are combined by a manifol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N13/08F01N3/28F01N3/20
CPCF01N13/08F01N3/28F01N3/2006Y02A50/20Y02T10/12
Inventor 村冈哲郎长谷川庆
Owner SUZUKI MOTOR CORP
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