JPH0347412B2 - - Google Patents
Info
- Publication number
- JPH0347412B2 JPH0347412B2 JP21914583A JP21914583A JPH0347412B2 JP H0347412 B2 JPH0347412 B2 JP H0347412B2 JP 21914583 A JP21914583 A JP 21914583A JP 21914583 A JP21914583 A JP 21914583A JP H0347412 B2 JPH0347412 B2 JP H0347412B2
- Authority
- JP
- Japan
- Prior art keywords
- sound absorbing
- absorbing material
- outer shell
- shell
- split
- 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.)
- Expired
Links
- 239000011358 absorbing material Substances 0.000 claims description 49
- 230000013011 mating Effects 0.000 claims description 9
- 230000003584 silencer Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- F01N13/14—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 having thermal insulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Description
【発明の詳細な説明】
本発明はエンジン排気系の消音器に関する。さ
らに詳しくは耐熱性薄板例えば鋼板を丸めその丸
め端部を溶接した筒形のアウタシエル、または対
称の半割りシエルを向に合せて結合した割型アウ
タシエルの、内面に沿つてバインダで固めて成形
した吸着材を備えた消音器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a muffler for an engine exhaust system. More specifically, heat-resistant thin plates such as cylindrical outer shells made by rolling steel plates and welding the rounded ends, or split outer shells made by joining symmetrical half-shells in the same direction, are hardened with a binder and formed. This invention relates to a silencer equipped with an adsorbent.
上記の吸音材はグラスウール・ロツクウール等
からなり、排気ガスの流勢、機械的振動等による
層重ね状態の緩み、線材の折れ等により原形が崩
れ耐久性に問題があるので、パンチング板・金網
で内面から押さえる等の手段がとられていた。 The above-mentioned sound absorbing materials are made of glass wool, rock wool, etc., and the original shape may collapse due to loosening of the stacked layers due to exhaust gas flow, mechanical vibration, etc., or bending of wire rods, etc., resulting in durability problems. Measures were taken to suppress it from the inside.
最近は、無機質バインダで固めた成形吸音材の
向上により用途機種によつては、上記の押え部材
を用いないでも原形が保持されるようになつた。
しかし成形品と雖も耐久面からアウタシエルに対
し動かないように安定させる必要がある。そこで
従来アウタシエルの内面に耐熱接着剤で貼着し、
或いは成形した吸音材の突き合せ面を仕上げて密
着させる等により対応している。 Recently, with the improvement of molded sound absorbing materials hardened with inorganic binders, depending on the application model, the original shape can be maintained without using the above-mentioned pressing member.
However, from the viewpoint of durability, the molded product and the bell need to be stabilized so that they do not move relative to the outer shell. Therefore, conventionally, it was pasted on the inner surface of the outer shell with heat-resistant adhesive,
Alternatively, this can be handled by finishing the abutting surfaces of the molded sound absorbing material so that they are in close contact with each other.
本発明は、上記の吸音材の安定保持を、簡単に
且合理的に行う新しい手段を提供することを目的
とする。 An object of the present invention is to provide a new means for stably holding the above-mentioned sound absorbing material simply and rationally.
その手段として、筒型アウタシエルにおいては
その内側丸め端の位置、割型アウタシエルにおい
てはその半割りシエルの合せ面の位置に、アウタ
シエルの内方略中心に向つて吸音材の端面押え部
材を吸音材の厚さと略同じ長さに突出形成し、筒
形アウタシエルにおいては筒形に丸めた吸音材の
突き合せ端面を、割型シエルにおいては各半割り
シエルにその内面に沿つて入れた凹形吸音材の開
口端部を、上記の押え部材で押さえて吸音材を保
持したことを特徴とする消音器である。 As a means for this, an end face pressing member of the sound absorbing material is placed at the inner rounded end of the cylindrical outer shell, or at the mating surface of the half shell in the case of a split outer shell, toward the inner center of the outer shell. A concave sound absorbing material is formed protruding to approximately the same length as the thickness, and in the case of a cylindrical outer shell, the mating end surfaces of the sound absorbing material are rolled into a cylindrical shape, and in the case of a split shell, the concave sound absorbing material is inserted into each half shell along its inner surface. The sound absorber is characterized in that a sound absorbing material is held by pressing the open end of the sound absorbing material with the above-mentioned pressing member.
以下好ましい実施例を図面について具体的に説
明する。 Preferred embodiments will be specifically described below with reference to the drawings.
第1図〜第3図は最も単純な円筒形消音器に、
本発明を実施する例を示すもので、1は例えば平
鋼板を円筒形に丸めたアウタシエル、4は厚さt
の平板に成形した吸音材を円筒形に丸めた吸音
材、41はその吸音材4の丸め端の突き合せ端面
4a,4b間の開口、5は第2図示のように、ア
ウタシエル1の丸め端の内外重ね合せ部3の内側
丸め端を折り曲げて略中心に向つて内方に突出さ
せて形成した吸音材の端面押え部材を示し、その
内方突出長さは吸音材4の厚さtと略等しく形成
する。 Figures 1 to 3 show the simplest cylindrical silencer.
This shows an example of carrying out the present invention, in which 1 is an outer shell made by rolling a flat steel plate into a cylindrical shape, and 4 is a thickness t.
41 is an opening between the abutting end surfaces 4a and 4b of the rounded ends of the sound absorbing material 4, and 5 is the rounded end of the outer shell 1 as shown in the second figure. This shows an end face pressing member of a sound absorbing material formed by bending the inner rounded end of the inner and outer overlapping portion 3 and protruding inward approximately toward the center, and its inward protruding length is equal to the thickness t of the sound absorbing material 4. Form approximately equal.
上記の二つの構成部品1,4を用意し、仕上り
寸法より外方に広がつた状態のアウタシエル1の
中に、円周長さを所定大きさに形成した第3図示
の吸音材4を、その突き合せ端面4a,4b間の
開口41に押え部材5を通すようにしてアウタシ
エル1に差し込む。 The above two components 1 and 4 are prepared, and the sound absorbing material 4 shown in the third figure, whose circumference is formed to a predetermined size, is placed inside the outer shell 1 which is expanded outward from the finished dimensions. The holding member 5 is inserted into the outer shell 1 so as to pass through the opening 41 between the abutted end surfaces 4a and 4b.
次いで押圧成形型61,62をアウタシエル1
の外面に当てて押圧すると、アウタシエル1は重
ね合せ部3がスリツプして、巻き締められて細ま
る。 Next, the press molding molds 61 and 62 are attached to the outer shell 1.
When pressed against the outer surface of the outer shell 1, the overlapping portion 3 of the outer shell 1 slips and is tightened and narrowed.
そこで設定された外径寸法までアウタシエル1
を絞り込むと、筒形吸音材4もアウタシエル1の
内面に押されて巻締められ、その開口41が狭ま
り端面4a,4bが押え部材5の両面に押しつけ
られて、吸音材4がアウタシエル1に動かないよ
うに略固定的に保持される。 Outer shell 1 up to the outer diameter dimension set there.
When narrowing down, the cylindrical sound absorbing material 4 is also pressed against the inner surface of the outer shell 1 and tightened, the opening 41 is narrowed, the end surfaces 4a and 4b are pressed against both sides of the holding member 5, and the sound absorbing material 4 is moved toward the outer shell 1. It is held almost fixedly so that it does not occur.
この状態において重ね合せ部3を溶接した後、
型61,62から取り出して製品が得られる。 After welding the overlapping portion 3 in this state,
A product is obtained by removing from the molds 61 and 62.
第1図中21,22はコーン状のエンドプレー
トであるが、その他環状平板、フランジ付環状平
板等のエンドプレートを、前記の筒状アウタシエ
ルの両端開口に取付けることもある。また1重以
上の数重のらせん巻のアウタシエル、横断面長円
形・多角形のアウタシエルにも本発明は適用する
ことができる。 Although 21 and 22 in FIG. 1 are cone-shaped end plates, other end plates such as an annular flat plate or a flanged annular flat plate may be attached to the openings at both ends of the cylindrical outer shell. Further, the present invention can be applied to an outer shell having one or more spiral windings, and an outer shell having an oval or polygonal cross section.
第4図以下は、半割りシエルを向い合せ結合し
た割型アウタシエルに、本発明を実施した例を示
す。 FIG. 4 and subsequent figures show an example in which the present invention is applied to a split outer shell in which half shells are joined facing each other.
11,12は半割りシエルを示し、その合せ面
位置に外向きに形成したフランジ11a,12a
を突き合せて溶接(第4図)またはかしめて(第
5図)アウタシエルを構成する。43,44は各
半割りシエル内に収納した吸音材を示し、シエル
の内面凹形と略相似に例えば第13図のように凹
形に成形される。 Reference numerals 11 and 12 indicate half shells, and flanges 11a and 12a are formed outward at the mating surface positions thereof.
are butted together and welded (Fig. 4) or caulked (Fig. 5) to form an outer shell. Reference numerals 43 and 44 indicate sound absorbing materials housed in each half shell, which are formed into a concave shape substantially similar to the concave inner surface of the shell, as shown in FIG. 13, for example.
従来はその成形吸音材の開口端面43a,44
aを、半割りシエル11,12の合せ面の線上で
直接突き合せるものであるが、排気ガス流勢・機
械的振動に対し安定的保持の点で不十分であつ
た。 Conventionally, the opening end surfaces 43a, 44 of the molded sound absorbing material
A is directly abutted on the line of mating surfaces of the half shells 11 and 12, but this is insufficient in terms of stable retention against exhaust gas flow and mechanical vibration.
そこで、本発明は上記のフランジの合せ面の位
置にシエル内方に向つて形成した吸音材の端面押
え部材51,52により両吸音材43,44の対
面する端面43a,44aを押さえることによつ
て、前記筒形アウタシエルの場合と同じ原理によ
つて吸音材をアウタシエルに一体結合させたもの
である。 Therefore, the present invention has been developed by pressing the facing end surfaces 43a, 44a of both sound absorbing materials 43, 44 with end surface pressing members 51, 52 of sound absorbing materials formed toward the inside of the shell at the positions of the mating surfaces of the flanges. Accordingly, the sound absorbing material is integrally bonded to the outer shell using the same principle as in the case of the cylindrical outer shell.
第4図は、半割りシエル11,12の結合用フ
ランジ11a,12aの間に別の押え部材51,
52を挟んでフランジ11a,12aと共に溶接
してアウタシエルを構成した例である。この場合
押え部材51,52は予め一方のフランジ面に固
定していてもよい。その押え部材のシエル内突出
長さは、前例同様吸音材の厚さtと略等しく形成
する。 FIG. 4 shows another presser member 51,
This is an example in which the outer shell is constructed by welding together the flanges 11a and 12a with 52 in between. In this case, the holding members 51 and 52 may be fixed to one of the flange surfaces in advance. The length of the holding member protruding into the shell is formed to be approximately equal to the thickness t of the sound absorbing material, as in the previous example.
第5図は、一方の半割りシエル例えば11の結
合用フランジ11aを折返し、内方に延長して吸
音材の端面押え部材51,52を一体に形成し、
半割りシエル11,12をかしめ結合31したも
のである。 In FIG. 5, one of the half shells, for example, 11 coupling flanges 11a, is folded back and extended inward to integrally form end face pressing members 51 and 52 of sound absorbing material.
Half shells 11 and 12 are caulked together 31.
半割りシエル11,12のフランジ11a,1
2aの結合時に吸音材の端面43a,44aが押
え部材51,52に十分に密着して押えられるよ
うに吸音材の形状寸法を設定するものである。な
お吸音材はその組織の性質から精密な寸法は得ら
れるものではなく、端面43a,44aには凹凸
誤差がある。そこで押え部材5,51,52の吸
音材受け面を第9図に示すように波形にして、上
記の誤差吸収しめ代を、必要に応じ形成する。 Flanges 11a, 1 of half shells 11, 12
The shape and dimensions of the sound absorbing material are set so that the end surfaces 43a, 44a of the sound absorbing material are sufficiently closely pressed by the pressing members 51, 52 when the sound absorbing materials 2a are combined. Note that the sound absorbing material cannot have precise dimensions due to the nature of its structure, and the end surfaces 43a and 44a have unevenness errors. Therefore, the sound-absorbing material receiving surfaces of the holding members 5, 51, 52 are made into a waveform as shown in FIG. 9 to form the above-mentioned error-absorbing margin as necessary.
第6〜8図は、半割りシエル11,12の各フ
ランジ11a,12aを、合せ結合に必要な面1
1a−1,12a−1と、その面より長く内方に
延長した面11a−2,12a−2とを、第8図
のように適当な幅毎に交互に形成するように、各
半割りシエル11,12を型成形する。 Figures 6 to 8 show how the flanges 11a and 12a of the half shells 11 and 12 are connected to each other on the surface necessary for mating and joining.
1a-1, 12a-1, and surfaces 11a-2, 12a-2 extending inward longer than those surfaces are formed alternately at appropriate widths as shown in FIG. The shells 11 and 12 are molded.
そして第6図示のようにその短かい面11a−
1(12a−1)と長い面12a−2(11a−
2)とを向い合せて半割りシエルを結合し、その
内方に長く延長したフランジ11a−2,12a
−2の面を、相手シエル内の吸音材の端面押え部
材としたものである。 And as shown in FIG. 6, the short surface 11a-
1 (12a-1) and long surface 12a-2 (11a-
2) Flanges 11a-2 and 12a that connect the half shells facing each other and extend long inwardly.
The surface -2 is used as an end face pressing member for the sound absorbing material in the mating shell.
第7図中、7は上記の押え部材をなす面11a
−2,12a−2に、押さえるべき吸音材の端面
に向つて設けた凸部で、前記第9図例の波形吸収
しめ代と同じ作用をするものである。 In FIG. 7, 7 is a surface 11a forming the above-mentioned presser member.
-2, 12a-2 is a convex portion provided toward the end face of the sound absorbing material to be pressed, and has the same effect as the wave-absorbing interference shown in the example shown in FIG. 9.
第10図、第11図は、第4図に示す上下の押
え部材51,52を1枚の平板またはパンチング
板で形成し、その四辺周面を押え部51,52,
53とその押え部51,52間に適当間隔に溝を
切り、その溝間を交互反対側い押し出し、その押
し出し面81,82を吸音材43,44の凹底面
に念の為に当てた当て部材を一体に形成した押え
部材の変形例である。 10 and 11, the upper and lower pressing members 51, 52 shown in FIG.
53 and its holding parts 51 and 52, and extrude the parts between the grooves alternately on opposite sides, and place the extruded surfaces 81 and 82 against the concave bottom surfaces of the sound absorbing materials 43 and 44 just in case. This is a modification of the presser member in which the members are integrally formed.
上記の割り型アウタシエルには別に構成したエ
ンドプレートを取付ける場合が多いが、第12図
の様に、半割りシエル11,12にエンドプレー
ト11b,12bを一体成形することもある。こ
の場合は吸音材43,44を箱形に形成して本発
明を適用し、上記のエンドプレート11b,12
bの内面にも吸音材を添着することができる。第
11図の押え部材は上記のアウタシエル用を示し
ている。 In many cases, separately constructed end plates are attached to the split outer shell, but as shown in FIG. 12, end plates 11b and 12b may be integrally formed with the half shells 11 and 12. In this case, the present invention is applied by forming the sound absorbing materials 43 and 44 into a box shape, and the above-mentioned end plates 11b and 12
A sound absorbing material can also be attached to the inner surface of b. The holding member shown in FIG. 11 is for the above-mentioned outer shell.
本発明は、上記のようにアウタシエルの内面に
内方に向う押え部材を形成し、該シエルの内面に
沿つて入れた吸音材の端面を該押え部材で押さえ
て吸音材を動かないように略固定的に保持し、そ
の押さえ作用により吸音材の外面をアウタシエル
の内面に当接させる作用をも有するもので、相ま
つて吸音材をアウタシエルと一体的に保持し、そ
の耐久性を向上する効果がある。 In the present invention, as described above, a pressing member facing inward is formed on the inner surface of the outer shell, and the end surface of the sound absorbing material inserted along the inner surface of the shell is pressed by the pressing member to prevent the sound absorbing material from moving. It holds the sound absorbing material firmly and has the effect of bringing the outer surface of the sound absorbing material into contact with the inner surface of the outer shell through its pressing action, which also has the effect of holding the sound absorbing material integrally with the outer shell and improving its durability. be.
図面は本発明消音器を示すもので、第1図は筒
形アウタシエルの一部切断正面図、第2図はその
横断面図、第3図は筒形吸音材の正面図、第4図
〜第6図は割型アウタシエルの横断面図、第7図
は第6図の一部の拡大図、第8図は第6図の半割
りシエルの一部の分解斜視図、第9図は第5図の
一部拡大斜視図、第10図は第12図のアウタシ
エルの横断面図、第11図は第10図に用いた吸
音材押え部材の変形例、第12図はエンドプレー
トまで一体成形した割型アウタシエルの斜視図、
第13図は凹型吸音材の斜視図。
1は筒形アウタシエル、11,12は割型アウ
タシエル、4は吸音材、5,51,52,8,1
1a−2,12a−2は吸音材押え部材。
The drawings show the silencer of the present invention, in which Fig. 1 is a partially cutaway front view of the cylindrical outer shell, Fig. 2 is a cross-sectional view thereof, Fig. 3 is a front view of the cylindrical sound absorbing material, and Figs. FIG. 6 is a cross-sectional view of the split outer shell, FIG. 7 is an enlarged view of a portion of FIG. 6, FIG. 8 is an exploded perspective view of a portion of the half-split shell of FIG. Fig. 5 is a partially enlarged perspective view, Fig. 10 is a cross-sectional view of the outer shell in Fig. 12, Fig. 11 is a modification of the sound absorbing material holding member used in Fig. 10, and Fig. 12 is an integral molding up to the end plate. A perspective view of the split outer shell.
FIG. 13 is a perspective view of the concave sound absorbing material. 1 is a cylindrical outer shell, 11 and 12 are split outer shells, 4 is a sound absorbing material, 5, 51, 52, 8, 1
1a-2 and 12a-2 are sound absorbing material pressing members.
Claims (1)
ウタシエル、または対称の半割りシエルを向いに
合せて結合した割型アウタシエルの、内面に沿つ
てバインダで固めて成形した吸音材を備えた消音
器において、 筒形アウタシエルにおいてはその内側丸め端の
位置、割型アウタシエルにおいてはその半割りシ
エルの合せ面の位置に、アウタシエルの内方略中
心に向つて吸音材の端面押え部材を吸音材の厚さ
と略同じ長さに突出形成し、 筒形アウタシエルにおいては筒形に丸めた吸音
材の突き合せ端面を、割型シエルにおいては各半
割りシエルにその内面に沿つて入れた凹形吸音材
の開口端面を、上記の押え部材で押さえて吸音材
を保持したことを特徴とする消音器。[Claims] 1. A cylindrical outer shell made by rolling a steel plate and welding the rounded ends, or a split outer shell made by joining symmetrical half-shells in their orientation, hardened with a binder along the inner surface and formed. In a silencer equipped with a sound absorbing material, an end face presser of the sound absorbing material is placed at the inner rounded end of the cylindrical outer shell, or at the mating surface of the half shell for a split outer shell, toward the inner center of the outer shell. The member is formed to protrude to have approximately the same length as the thickness of the sound absorbing material, and in the case of a cylindrical outer shell, the mating end surfaces of the sound absorbing material rolled into a cylindrical shape are inserted into each half shell along the inner surface of the split shell. A silencer characterized in that the sound absorbing material is held by pressing the opening end surface of the concave sound absorbing material with the above-mentioned pressing member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21914583A JPS60111011A (en) | 1983-11-21 | 1983-11-21 | Manufacture of silencer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21914583A JPS60111011A (en) | 1983-11-21 | 1983-11-21 | Manufacture of silencer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60111011A JPS60111011A (en) | 1985-06-17 |
JPH0347412B2 true JPH0347412B2 (en) | 1991-07-19 |
Family
ID=16730916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21914583A Granted JPS60111011A (en) | 1983-11-21 | 1983-11-21 | Manufacture of silencer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60111011A (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE33370E (en) * | 1986-11-25 | 1990-10-09 | Ap Parts Manufacturing Company | Stamp formed muffler |
US4736817A (en) * | 1986-11-25 | 1988-04-12 | Ap Industries, Inc. | Stamp formed muffler |
US4760894A (en) * | 1987-06-11 | 1988-08-02 | Ap Industries, Inc. | Exhaust muffler with angularly aligned inlets and outlets |
US4759423A (en) * | 1987-06-11 | 1988-07-26 | Ap Industries, Inc. | Tube and chamber construction for an exhaust muffler |
US4765437A (en) * | 1987-10-07 | 1988-08-23 | Ap Industries, Inc. | Stamp formed muffler with multiple low frequency resonating chambers |
US4821840A (en) * | 1988-01-20 | 1989-04-18 | Ap Parts Manufacturing Company | Stamp formed exhaust muffler with conformal outer shell |
US4909348A (en) * | 1988-01-20 | 1990-03-20 | Ap Parts Manufacturing Company | Stamp formed exhaust muffler with conformal outer shell |
US4836330A (en) * | 1988-08-03 | 1989-06-06 | Ap Industries, Inc. | Plural chamber stamp formed muffler with single intermediate tube |
US4924968A (en) * | 1988-08-03 | 1990-05-15 | Ap Parts Manufacturing Company | Stamp formed muffler with reinforced outer shell |
US4894987A (en) * | 1988-08-19 | 1990-01-23 | Ap Parts Manufacturing Company | Stamp formed muffler and catalytic converter assembly |
US4901815A (en) * | 1988-10-18 | 1990-02-20 | Parts Manufacturing Company | Stamp formed mufflers |
US4860853A (en) * | 1988-12-20 | 1989-08-29 | Ap Parts Manufacturing Company | Stamp formed muffler with nonplanar array of tubes |
US4905791A (en) * | 1989-01-23 | 1990-03-06 | Ap Parts Manufacturing Company | Light weight hybrid exhaust muffler and method of manufacture |
US4901816A (en) * | 1989-01-23 | 1990-02-20 | Ap Parts Manufacturing Company | Light weight hybrid exhaust muffler |
US4928372A (en) * | 1989-04-07 | 1990-05-29 | Ap Parts Manufacturing Company | Process for manufacturing stamp formed mufflers |
US5004069A (en) * | 1990-01-26 | 1991-04-02 | Ap Parts Manufacturing Company | Stamp formed muffler with transverse baffle tube |
US4958701A (en) * | 1990-03-26 | 1990-09-25 | Ap Parts Manufacturing Company | Stamp formed muffler with pocket-free baffle crease |
US5173577A (en) * | 1990-09-04 | 1992-12-22 | Ap Parts Manufacturing Co. | Stamp formed muffler with low back pressure |
US5252788A (en) * | 1992-04-10 | 1993-10-12 | Ap Parts Manufacturing Co. | Stamp formed muffler with in-line expansion chamber and arcuately formed effective flow tubes |
US5428194A (en) * | 1993-10-19 | 1995-06-27 | Ap Parts Manufacturing Company | Narrow width stamp formed muffler |
US5448831A (en) * | 1993-11-08 | 1995-09-12 | Ap Parts Manufacturing Company | Method of manufacturing a stamp formed muffler with hermetically sealed laminated outer shell |
CA2123870A1 (en) * | 1994-03-02 | 1995-09-03 | James E. Gerber | Exhaust mufflers with stamp formed internal components and method of manufacture |
US5816361A (en) * | 1994-03-02 | 1998-10-06 | Ap Parts Manufacturing Company | Exhaust mufflers with stamp formed internal components and method of manufacture |
US6341664B1 (en) | 2000-01-13 | 2002-01-29 | Goerlich's Inc. | Exhaust muffler with stamp formed internal assembly |
-
1983
- 1983-11-21 JP JP21914583A patent/JPS60111011A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60111011A (en) | 1985-06-17 |
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