JPH0462319U - - Google Patents
Info
- Publication number
- JPH0462319U JPH0462319U JP10261090U JP10261090U JPH0462319U JP H0462319 U JPH0462319 U JP H0462319U JP 10261090 U JP10261090 U JP 10261090U JP 10261090 U JP10261090 U JP 10261090U JP H0462319 U JPH0462319 U JP H0462319U
- Authority
- JP
- Japan
- Prior art keywords
- muffler
- pipe
- air introduction
- introduction chamber
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Description
第1図は本考案の実施例を示し、縦型空冷側弁
式エンジンに付設したマフラカバー部分の一部切
り欠き縦断面図、第2図は第1図の部分拡大図で
ある。第3図は従来の実施例を示し第1図に相当
する図である。
1……エンジン、2……マフラ本体、3……冷
却風通風空間、4……マフラカバー、5……排気
口、6……冷却風出口、7……アウタパイプ、8
……インナパイプ、9……内側壁、10……外側
壁、11……通風間隙、12……外気導入室、1
3……外気導入孔。
FIG. 1 shows an embodiment of the present invention, and is a partially cutaway vertical sectional view of a muffler cover attached to a vertical air-cooled side valve type engine, and FIG. 2 is a partially enlarged view of FIG. 1. FIG. 3 shows a conventional embodiment and is a diagram corresponding to FIG. 1. 1...Engine, 2...Muffler body, 3...Cooling air ventilation space, 4...Muffler cover, 5...Exhaust port, 6...Cooling air outlet, 7...Outer pipe, 8
... Inner pipe, 9 ... Inner wall, 10 ... Outer wall, 11 ... Ventilation gap, 12 ... Outside air introduction chamber, 1
3...Outside air introduction hole.
Claims (1)
フラカバー4で覆い、このマフラ本体2とマフラ
カバー4との間は冷却風通風空間3を形成し、マ
フラ本体2の排気口5とマフラカバー4の冷却風
出口6とを同軸状に配置したエンジンのマフラに
おいて、 マフラ本体2内の排気口形成部に外気導入室1
2を区画形成し、この外気導入室12の外側壁1
0に外気導入孔13を透設して冷却風通風空間3
を流れる冷却風を外気導入室12に取り入れ可能
に構成し、 外気導入室12の内側壁9にインナパイプ8を
貫通配置するとともに、外気導入室12の外側壁
10にアウタパイプ7を貫通配置し、 インナパイプ8とアウタパイプ7とをインナパ
イプ8の外端部がアウタパイプ7の内端部に突入
する状態で同軸状に位置させ、アウタパイプ7の
内周面とインナパイプ8の外周面との間に通風間
隙11を形成し、 アウタパイプ7の外端部をマフラカバー4内で
冷却風出口6に臨ませたことを特徴とするエンジ
ンのマフラ。[Claims for Utility Model Registration] The outer periphery of the muffler body 2 attached to the engine 1 is covered with a muffler cover 4, and a cooling air ventilation space 3 is formed between the muffler body 2 and the muffler cover 4. In an engine muffler in which the exhaust port 5 and the cooling air outlet 6 of the muffler cover 4 are arranged coaxially, an outside air introduction chamber 1 is provided in the exhaust port forming part in the muffler body 2.
2, and the outer wall 1 of this outside air introduction chamber 12
A cooling ventilation ventilation space 3 is created by providing an outside air introduction hole 13 in 0.
The inner pipe 8 is arranged to penetrate through the inner wall 9 of the outer air introduction chamber 12, and the outer pipe 7 is arranged to pass through the outer wall 10 of the outer air introduction chamber 12. The inner pipe 8 and the outer pipe 7 are positioned coaxially with the outer end of the inner pipe 8 protruding into the inner end of the outer pipe 7, and between the inner circumferential surface of the outer pipe 7 and the outer circumferential surface of the inner pipe 8. This muffler for an engine is characterized in that a ventilation gap 11 is formed and the outer end of the outer pipe 7 faces the cooling air outlet 6 within the muffler cover 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10261090U JPH0462319U (en) | 1990-09-29 | 1990-09-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10261090U JPH0462319U (en) | 1990-09-29 | 1990-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0462319U true JPH0462319U (en) | 1992-05-28 |
Family
ID=31847003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10261090U Pending JPH0462319U (en) | 1990-09-29 | 1990-09-29 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0462319U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006080441A1 (en) * | 2005-01-28 | 2006-08-03 | Hiraoka Manufacturing Co., Ltd. | Muffler for small engine |
JP2019090341A (en) * | 2017-11-13 | 2019-06-13 | マツダ株式会社 | Exhaust structure of electric vehicle |
-
1990
- 1990-09-29 JP JP10261090U patent/JPH0462319U/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006080441A1 (en) * | 2005-01-28 | 2006-08-03 | Hiraoka Manufacturing Co., Ltd. | Muffler for small engine |
JP2019090341A (en) * | 2017-11-13 | 2019-06-13 | マツダ株式会社 | Exhaust structure of electric vehicle |