JPH01127915U - - Google Patents
Info
- Publication number
- JPH01127915U JPH01127915U JP2492688U JP2492688U JPH01127915U JP H01127915 U JPH01127915 U JP H01127915U JP 2492688 U JP2492688 U JP 2492688U JP 2492688 U JP2492688 U JP 2492688U JP H01127915 U JPH01127915 U JP H01127915U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- expansion chamber
- pipe
- outlet pipe
- inlet
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011358 absorbing material Substances 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
- 238000009423 ventilation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Exhaust Silencers (AREA)
Description
第１図〜第７図は本考案の実施例を示し、第１
図は第１実施例を示す薄型円筒マフラの横断平面
図、第２図は同マフラの排気導入管周辺の縦断面
図、第３図は同マフラの排気導出管周辺の縦断面
図、第４図は第２実施例を示す第１図相当図、第
５図は同実施例を示す第３図相当図、第６図は第
３実施例を示す第３図相当図、第７図は第４実施
例を示す第２図相当図、第８図は従来技術を示す
第１図相当図、第９図は同従来技術を示す第３図
相当図である。
１……マフラ本体、２……膨張室、２ａ……２
の内周面、３……排気導入管、３ａ……３の出口
、４……排気導出管、４ａ……４の入口、５……
共鳴室、６……通気孔、７……吸音材、２０……
１の内周面、Ｃ……１の円筒軸心。
1 to 7 show embodiments of the present invention.
The figure is a cross-sectional plan view of a thin cylindrical muffler showing the first embodiment, Figure 2 is a vertical cross-sectional view of the area around the exhaust inlet pipe of the same muffler, Figure 3 is a vertical cross-sectional view of the area around the exhaust outlet pipe of the same muffler, The figure is a diagram equivalent to Figure 1 showing the second embodiment, Figure 5 is a diagram equivalent to Figure 3 showing the same embodiment, Figure 6 is a diagram equivalent to Figure 3 showing the third embodiment, and Figure 7 is a diagram equivalent to Figure 3 showing the third embodiment. FIG. 8 is a diagram equivalent to FIG. 2 showing the fourth embodiment, FIG. 8 is a diagram equivalent to FIG. 1 showing the prior art, and FIG. 9 is a diagram equivalent to FIG. 3 showing the prior art. 1...Muffler body, 2...Expansion chamber, 2a...2
Inner peripheral surface of 3...exhaust inlet pipe, 3a...outlet of 3, 4...exhaust outlet pipe, 4a...inlet of 4, 5...
Resonance chamber, 6...Vent hole, 7...Sound absorbing material, 20...
Inner peripheral surface of 1, C... cylindrical axis of 1.
Claims (1)
排気導出管４とから構成し、マフラ本体１内に設
けた膨張室２に排気導入管３と排気導出管４とを
突入させ、排気導入管３の出口３ａと排気導入管
４の入口４ａとを膨張室２を介して連通し、膨張
室２内で排気導出管４の外周部に共鳴室５を形成
し、共鳴室５を通気孔６を介して排気導出管４に
連通し、共鳴室５に吸音材７を収容したエンジン
の薄型円筒マフラにおいて、 排気導出管４をマフラ本体１の周壁２０から深
く挿入するとともに、この挿入管部分８を湾曲さ
せて長く形成し、湾曲状挿入管部分８の外周に共
鳴室５を設けたことを特徴とするエンジンの薄型
円筒マフラ。 ２ 排気導入管３の出口３ａと排気導出管４の入
口４ａとを、膨張室２内でマフラ本体１の円筒軸
心Ｃから見て互いに相反する位置で、膨張室２の
内周壁２ａに近付けて配置するとともに、当該出
口３ａと入口４ａとが、直接的にも、膨張室２の
内周壁２ａに沿つても向き合わないように互いに
方向付けて開口したことを特徴とする請求項１に
記載のエンジンの薄型円筒マフラ。[Claims for Utility Model Registration] 1. Consisting of a thin cylindrical muffler body 1, an exhaust inlet pipe 3, and an exhaust outlet pipe 4, an expansion chamber 2 provided in the muffler body 1 has an exhaust inlet pipe 3 and an exhaust outlet pipe. 4, the outlet 3a of the exhaust inlet pipe 3 and the inlet 4a of the exhaust inlet pipe 4 are communicated via the expansion chamber 2, and a resonance chamber 5 is formed at the outer periphery of the exhaust outlet pipe 4 within the expansion chamber 2. In a thin cylindrical muffler for an engine in which the resonance chamber 5 is communicated with the exhaust outlet pipe 4 through the ventilation hole 6 and the sound absorbing material 7 is housed in the resonance chamber 5, the exhaust outlet pipe 4 is deeply connected to the peripheral wall 20 of the muffler body 1. A thin cylindrical muffler for an engine, characterized in that the insertion tube section 8 is curved and elongated, and a resonance chamber 5 is provided around the outer periphery of the curved insertion tube section 8. 2. Move the outlet 3a of the exhaust introduction pipe 3 and the inlet 4a of the exhaust outlet pipe 4 close to the inner circumferential wall 2a of the expansion chamber 2 at opposite positions when viewed from the cylindrical axis C of the muffler body 1 within the expansion chamber 2. According to claim 1, the outlet 3a and the inlet 4a are oriented to each other so as not to face each other directly or along the inner circumferential wall 2a of the expansion chamber 2. Thin cylindrical muffler for the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2492688U JPH01127915U (en) | 1988-02-25 | 1988-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2492688U JPH01127915U (en) | 1988-02-25 | 1988-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01127915U true JPH01127915U (en) | 1989-08-31 |
Family
ID=31245198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2492688U Pending JPH01127915U (en) | 1988-02-25 | 1988-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127915U (en) |
-
1988
- 1988-02-25 JP JP2492688U patent/JPH01127915U/ja active Pending