JPH0430213U - - Google Patents
Info
- Publication number
- JPH0430213U JPH0430213U JP7218190U JP7218190U JPH0430213U JP H0430213 U JPH0430213 U JP H0430213U JP 7218190 U JP7218190 U JP 7218190U JP 7218190 U JP7218190 U JP 7218190U JP H0430213 U JPH0430213 U JP H0430213U
- Authority
- JP
- Japan
- Prior art keywords
- opening
- exhaust pipe
- muffler
- exhaust
- orifice
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
Description
第１図は、本考案の第１実施例を示す第２図
−線に沿う断面図、第２図は、同実施例の斜視
図、第３図は、本考案の第２実施例において開口
部が閉鎖された状態を示す第２図−線に相当
する断面図、第４図は、同実施例において開口部
が開放された状態を示す第２図−線に相当す
る断面図、第５図は、本考案の第３実施例におい
て開口部が閉鎖された状態を示す第２図−線
に相当する断面図、第６図は、同実施例において
開口部が開放された状態を示す第２図−線に
相当する断面図、第７図は、従来のプリマフラを
示す垂直断面図である。
２１……マフラ本体、２２……容積室、２５…
…排気管、２７……オリフイス、２８……小孔、
２９……開口部、３０……蓋体（開閉手段）、３
１……外筒（開閉手段）、３２，３４……形状記
憶合金（開閉手段）、３３……内筒（開閉手段）
、Ｕ……上流側。
FIG. 1 is a sectional view taken along the line of FIG. 2 showing a first embodiment of the present invention, FIG. 2 is a perspective view of the same embodiment, and FIG. FIG. 4 is a sectional view taken along the line in FIG. 2 showing a state where the opening is open in the same embodiment; The figure is a cross-sectional view corresponding to the line in FIG. 2 showing a state in which the opening is closed in the third embodiment of the present invention, and FIG. 6 is a cross-sectional view corresponding to the line in FIG. FIG. 7 is a vertical sectional view showing a conventional pre-muffler. 21...Muffler body, 22...Volume chamber, 25...
...exhaust pipe, 27...orifice, 28...small hole,
29... Opening, 30... Lid (opening/closing means), 3
1... Outer cylinder (opening/closing means), 32, 34... Shape memory alloy (opening/closing means), 33... Inner cylinder (opening/closing means)
, U...upstream side.
Claims (1)
小孔が設けられた排気管が配設され、該排気管の
内部にオリフイスが設けられたプリマフラにおい
て、前記排気管の前記オリフイスより上流側に開
口部が設けられるとともに、前記排気管内の排気
温度が低温域にあるとき前記開口部を閉鎖し、か
つ高温域にあるとき開放する開閉手段が設けられ
たことを特徴とするプリマフラ。 In a pre-muffler in which an exhaust pipe with a plurality of small holes is disposed inside a muffler main body forming a volume chamber, and an orifice is provided inside the exhaust pipe, the exhaust pipe is located upstream of the orifice. A pre-muffler characterized in that an opening is provided and an opening/closing means is provided which closes the opening when the exhaust gas temperature in the exhaust pipe is in a low temperature range and opens the opening when the exhaust temperature is in a high temperature range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7218190U JPH0430213U (en) | 1990-07-06 | 1990-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7218190U JPH0430213U (en) | 1990-07-06 | 1990-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0430213U true JPH0430213U (en) | 1992-03-11 |
Family
ID=31609894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7218190U Pending JPH0430213U (en) | 1990-07-06 | 1990-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040041361A (en) * | 2002-11-11 | 2004-05-17 | 현대자동차주식회사 | muffler for a vehicle |
-
1990
- 1990-07-06 JP JP7218190U patent/JPH0430213U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040041361A (en) * | 2002-11-11 | 2004-05-17 | 현대자동차주식회사 | muffler for a vehicle |