Unlock instant, AI-driven research and patent intelligence for your innovation.

Vehicle exhausting device

A technology for exhaust devices and vehicles, which is applied to mufflers, engine components, machines/engines, etc., can solve the problems of complicated internal structure of mufflers, difficulty in making open-hole tapered pipes, and limitation of exhaust pipe length, etc. The effect of simplifying the structure, improving the engine output, and maintaining the noise reduction effect

Inactive Publication Date: 2007-09-05
HONDA MOTOR CO LTD
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned existing structure, since a tapered pipe with a certain length must be provided on the downstream side of the exhaust pipe, the length of the exhaust pipe prone to restrictions
In addition, due to the difficulty in making the perforated tapered pipe and the complexity of the internal structure of the muffler, the cost increases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vehicle exhausting device
  • Vehicle exhausting device
  • Vehicle exhausting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Hereinafter, embodiments of this invention will be described with reference to the drawings. In addition, directions such as front, rear, left, and right in the above description are the same as the directions in the vehicle unless otherwise specified. In addition, in the drawings, arrow FR indicates the front of the vehicle, arrow LH indicates the left side of the vehicle, and arrow UP indicates the upper side of the vehicle.

[0015] As shown in FIG. 1 , the front wheel 2 of the motorcycle 1 is pivotally supported on the lower ends of the left and right front forks 3 , and the upper parts of the left and right front forks 3 are steerably supported on the head tube 6 at the front end of the vehicle frame 5 via the steering rod 4 . superior. On the other hand, the rear wheel 7 of the motorcycle 1 is pivotally supported on the rear end of a swing arm 8 , and the front end of the swing arm 8 is pivotally supported on a pivot bracket 9 in the middle of the vehicle frame 5...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A vehicle exhaust apparatus capable of increasing silencing effect, helping to improve of motor output, and realizing reduced cost, is provided. The exhaust apparatus (20) has an opening in a first expanding chamber (26) at a most upstream of a silencer (22) after a vent-pipe (21) passing through a second espanding chamber (27) of a vent-pipe (21) side of the silencer (22), wherein, a shrinking portion (41) for reducing an area of a venting passage is provided at a downstream side of the vent-pipe (21) and at a position facing to inside of the second expanding chamber (27), a communicated hole (42) with an opening area less than the area of the venting passage is arraged at an upstream side of the shrinking portion (41) and at a position facing to the inside of the the second expanding chamber (27) in the vent-pipe (21).

Description

technical field [0001] The present invention relates to a vehicle exhaust device such as a motorcycle. Background technique [0002] In the past, the above-mentioned exhaust device usually has an exhaust pipe and a muffler connected thereto, and a plurality of exhaust expansion chambers are formed in the above-mentioned muffler, and at the same time, the capacity of each expansion chamber is ensured to be large, thereby improving the noise reduction effect. And seek to improve the output of the engine. In this case, since the size reduction of the muffler tends to be restricted, for example, in the following Patent Document 1, a multi-stage perforated tapered pipe made of a porous member is provided on the downstream side of the exhaust pipe to improve the noise reduction effect. [0003] Patent Document 1: Patent No. 3495487 [0004] However, in the conventional configuration described above, since it is necessary to install a tapered pipe having a certain length or more ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F01N1/08
Inventor 花井俊则
Owner HONDA MOTOR CO LTD