JPS6081421A - Folded pipe of muffler - Google Patents

Folded pipe of muffler

Info

Publication number
JPS6081421A
JPS6081421A JP18845783A JP18845783A JPS6081421A JP S6081421 A JPS6081421 A JP S6081421A JP 18845783 A JP18845783 A JP 18845783A JP 18845783 A JP18845783 A JP 18845783A JP S6081421 A JPS6081421 A JP S6081421A
Authority
JP
Japan
Prior art keywords
pipe
muffler
holes
welding
double
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
Application number
JP18845783A
Other languages
Japanese (ja)
Inventor
Yoshifumi Niimura
新村　桂文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP18845783A priority Critical patent/JPS6081421A/en
Publication of JPS6081421A publication Critical patent/JPS6081421A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/26—Tubes being formed by extrusion, drawing or rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

PURPOSE:To promote folded pipe to be easily processed, by forming the folded pipe in a muffler into duble-row holes of 8-shaped section, by extruding the central part in a longitudinal direction from both sides of the pipe leaving its one end, and forming said one end by welding a cover plate. CONSTITUTION:A thick pipe 1 is formed by press extruding work or the like into an 8-shaped section by extruding the central part in a longitudinal direction from both sides of the pipe leaving its one end by an area being a through hole, providing double-row holes 2. An extruded butt portion is molten to be attached by seam welding or the like, dividing the pipe into the two double holes 2. Then the left one end is closed by welding a cover plate 3. A folded pipe is housed in the front part of a muffler cylinder 4, and one of the double holes 2 is welded to be connected to an inlet pipe 5.

Description

【発明の詳細な説明】 この％　１４は、オートバイ弄のエンジンに用いるマフ
ラの折曲り′箭に関する。DETAILED DESCRIPTION OF THE INVENTION This percentage 14 relates to a bent muffler used in a motorcycle engine.

エンジンのマフラては、マフラ前端のづ非気営に接続す
る部分に長いパイプを連結すると、排気の脈動を有効に
利用できて、中低速域の出力の向上を図ることができる
。又、長いパイプによって、長周波の騒音を共１１すさ
せることができて、触合の低減を図ることができること
も知られている。ところが、マフラは、装７にする俵体
との関係で長さが制約されるので、長いパイプを装着で
きない。If you connect a long pipe to the front end of the engine muffler where it connects to the exhaust gas pipe, you can effectively utilize the pulsation of the exhaust gas and improve output in the medium and low speed range. It is also known that long pipes can reduce long-frequency noise and reduce contact. However, since the length of the muffler is limited by the relationship with the bale body used as the casing 7, a long pipe cannot be attached to the muffler.

そのため中央で１８０°Ｕ字状に折曲げたパイプが挿入
される。ところが、パイプを中央で１８０“折曲げると
、折曲げ個所で孔が潰れて使用できない。このため、止
むを得す、通常は、第１図に示すように、二本に切った
パイプＡを並べ、二つのパイプＡに鋼板でＵ字形に成形
した連結片Ｂを浴着して折曲げ管を拝り、これをマフラ
Ｃ内に入れて、一方のパイプＡＯｙ高を入口前Ｄｉこ１
４Ｎしている。このようにして折曲げｇを作るので、１
．ｌノ曙、プレス、溶接等、加工の手間が多く、製造コ
ストが筒くつく不都合かある。Therefore, a pipe bent in a 180° U-shape at the center is inserted. However, if the pipe is bent by 180" in the center, the hole will collapse at the bent point, making it unusable. This is unavoidable. Usually, as shown in Figure 1, pipe A cut into two pieces is Arrange them side by side, attach a U-shaped connecting piece B made of steel plate to the two pipes A, bend the pipe, put it into the muffler C, and connect the pipe AOy height to the Di1 in front of the inlet.
I'm doing 4N. In this way, bending g is made, so 1
．． The disadvantage is that it requires a lot of processing time, such as pressing, welding, etc., which increases manufacturing costs.

この発明は、かかる点に麺み、女１曲に折曲げ・ら−が
得られるように改善したもので、以Ｆ第２図及び第３図
に示す本元明の実施νりについて説す」−リーる。This invention has been improved in such a way that it can be bent and bent in one song. ”-Lee Ru.

太い管１を、一端を通孔にほる分たけ残し、両１Ｉｉｌ
ｌから中央部分を長さ方向にプレス押出し加工前により
、Ｃ７面８字状に押出し力ｌ工して、二連孔２を設ける
。押出した合わさり部分は、シーム重接等によって浴着
し、二連孔２，２に分割する。そして、残した一端には
、基き板３を溶着して塞ぐ。Leave one end of the thick tube 1 loose in the hole, and insert both 1Iil.
Before press extrusion, the central portion is pressed in the longitudinal direction from l to form an 8-shape on the C7 surface with extrusion force l to form double holes 2. The extruded combined portion is bonded by seam overlap, etc., and divided into two consecutive holes 2, 2. Then, the remaining end is sealed by welding the substrate 3.

こうして、Ｘ１ｌｉで１８０゛折曲った孔を有する折曲
り官を形成する。折曲り哲は、マフラ内４の前部に収容
し、二連孔２，２の一方を入口管５に浴危連結する。In this way, a bend hole having a hole bent by 180° at X1li is formed. The bent bolt is housed in the front part of the muffler interior 4 and connects one of the double holes 2, 2 to the inlet pipe 5.

作用について説明する。The effect will be explained.

折曲り官は、太いＧ１を一端を残して〃ｆ１珀８字状に
押出し力日工して、二連孔２とし　、ＩＭに辿孔部を残
して、藤き板３を浴庸ｒれば出来上るので、カロエの手
間か少く安ｎ１ｌｉにできる。For the bending section, leave one end of the thick G1 and extrude it into an 8-shape f1 to form a double hole 2, leave a tracing hole in the IM, and then press the rattan board 3. Since it can be completed quickly, it can be done cheaply and with less effort than Caloe.

以上説り」したように、この先明は、音の−Ｗ１′ｆａ
を残して内聞から中大部をプレス伸出しによって一丁面
８字状の二連孔とし、Ｊｌｊ　ｆこ示き板を府涜して一
端で１８０°折曲った七丁曲り′鎗としたので、カロエ
の手１０」が少く、折曲り・ｄが安圃にできてコストタ
ウンかでさる。そして、マフラ内に艮い・ｄを自己ｌ藏
てきて、中低速出力の同上と、欠周ｆ友の、１辿廿の低
減ができる。As explained above, from now on, the sound -W1'fa
By pressing out the middle part from the inner chamber, leaving a double hole in the shape of 8 on one side, and making a 7-cho curved spear with one end bent 180 degrees, ignoring the Jlj f-marking board. As a result, Karoe's move 10" is small, and the bend/d can be made in a safe field, making it a cost town. Then, by installing the d into the muffler, it is possible to achieve the same increase in medium and low speed output and to reduce the frequency drop by one degree.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来例を示ず継断１（１ｊ而図、第２図反ひ第
３図は本発明の一実施例を示し、第２図は部分的に縦断
した佃ｊ面図、第３図は第２図Ｘ−Ｘ天視イ黄新山１図
である。 １　官、２・二連孔、３　・塞き板。 出呂人代理人　ｊ！沢　清Fig. 1 does not show a conventional example, but shows a joint section 1 (Fig. 1); Fig. 2 shows an embodiment of the present invention; Figure 3 is Figure 2 X-X Tenshu I Huangxinzan 1. 1. Official, 2. Two consecutive holes, 3. Blocking board. J! Kiyoshi Sawa

Claims (1)

【特許請求の範囲】[Claims] 音の一端を残して両側から中央部をプレス押出しによっ
て断面８字状の二連孔とし、一端に塞ぎ根を浴毒して一
端で１８０゛折曲った折曲り省としたことを待機とする
マフラの折曲り′ｄ。Leaving one end of the sound, the central part was press-extruded from both sides to make a double hole with a cross section of 8 shape, and one end was closed, the root was poisoned, and one end was bent 180 degrees to make a standby. Bent muffler'd.
JP18845783A 1983-10-11 1983-10-11 Folded pipe of muffler Pending JPS6081421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18845783A JPS6081421A (en) 1983-10-11 1983-10-11 Folded pipe of muffler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18845783A JPS6081421A (en) 1983-10-11 1983-10-11 Folded pipe of muffler

Publications (1)

Publication Number Publication Date
JPS6081421A true JPS6081421A (en) 1985-05-09

Family

ID=16224036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18845783A Pending JPS6081421A (en) 1983-10-11 1983-10-11 Folded pipe of muffler

Country Status (1)

Country Link
JP (1) JPS6081421A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007223483A (en) * 2006-02-23 2007-09-06 Honda Motor Co Ltd Exhaust structure of motorcycle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007223483A (en) * 2006-02-23 2007-09-06 Honda Motor Co Ltd Exhaust structure of motorcycle

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