JPH0849521A - Muffler - Google Patents
MufflerInfo
- Publication number
- JPH0849521A JPH0849521A JP6204198A JP20419894A JPH0849521A JP H0849521 A JPH0849521 A JP H0849521A JP 6204198 A JP6204198 A JP 6204198A JP 20419894 A JP20419894 A JP 20419894A JP H0849521 A JPH0849521 A JP H0849521A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- resistance
- back pressure
- casing
- resistance plate
- 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
- 230000003584 silencer Effects 0.000 claims description 8
- 230000030279 gene silencing Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、エンジンの排気系路に
設けられる消音器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silencer provided in an exhaust passage of an engine.
【０００２】[0002]
【従来の技術】エンジンの排気音を消音する抵抗型消音
器は、多数の排気ガス流通穴が設けられた排気ガス導管
がケーシング内の中心を貫通し、複数の抵抗板によって
前記ケーシング内の空間が排気ガスの流れ方向に複数の
拡張室に区分された構造である。この抵抗型消音器にお
いて、複数の抵抗板には排気ガスを通過させる大径穴を
開設した抵抗板と、排気ガスを通過させる大径穴が開設
されていない抵抗板とが交互に配置された構造のものが
実開昭５８−１４９５１０号で提供されている。2. Description of the Related Art A resistance silencer for silencing engine exhaust noise has an exhaust gas conduit provided with a large number of exhaust gas passage holes passing through the center of the casing and having a plurality of resistance plates to form a space in the casing. Is a structure divided into a plurality of expansion chambers in the exhaust gas flow direction. In this resistance silencer, a plurality of resistance plates are alternately arranged with a resistance plate having a large-diameter hole through which exhaust gas passes and a resistance plate without a large-diameter hole through which exhaust gas passes. The structure is provided in Japanese Utility Model Publication No. 58-149510.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の消音器で
は、大径穴を開設した抵抗板を通過した排気ガスは排気
ガスを通過させる大径穴が開設されていない抵抗板によ
って背圧が上昇し、エンジン性能に影響を及ぼす不都合
がある。In the above conventional silencer, the exhaust gas passing through the resistance plate having the large diameter hole has a back pressure increased by the resistance plate having no large diameter hole for allowing the exhaust gas to pass therethrough. However, there is an inconvenience that affects the engine performance.
【０００４】[0004]
【課題を解決するための手段】本発明は上記の問題を解
消するために提供するものであり、その特徴とする構成
は、多数の排気ガス流通穴が設けられた排気ガス導管が
ケーシング内の中心を貫通し、複数の抵抗板によって前
記ケーシング内の空間が排気ガスの流れ方向に複数の拡
張室に区分された抵抗型消音器において、排気ガスを通
過させる大径穴を開設した抵抗板と、背圧低減用の小孔
を開設した抵抗板とを交互に配置したものである。DISCLOSURE OF THE INVENTION The present invention is provided to solve the above-mentioned problems, and is characterized in that an exhaust gas conduit provided with a large number of exhaust gas passage holes is provided in a casing. A resistance type silencer that penetrates through the center and has a space in the casing divided into a plurality of expansion chambers in the exhaust gas flow direction by a plurality of resistance plates, and a resistance plate having a large diameter hole through which exhaust gas passes. , And a resistance plate having small holes for reducing back pressure are alternately arranged.
【０００５】[0005]
【作用】上記の構成により、背圧低減用の小孔を開設し
た抵抗板によって排気ガスの背圧上昇を抑制し、エンジ
ン性能に及ぼす影響を解消したものである。With the above construction, the resistance plate having the small holes for reducing the back pressure suppresses the rise of the back pressure of the exhaust gas and eliminates the influence on the engine performance.
【０００６】[0006]
【実施例】以下本発明の実施例を図面に基づいて説明す
る。図１及び図２において、１はケーシングであり、そ
の一端には排気ガス流入管２が、また、他端には排気ガ
ス流出管３が設けられ、この排気ガス流入管２と排気ガ
ス流出管３との間に、多数の排気ガス流通穴５が設けら
れた排気ガス導管４がケーシング１内の中心を貫通し、
複数の抵抗板６，９，１１によって前記ケーシング内の
空間が排気ガスの流れ方向に複数の拡張室１３，１４，
１５に区分されている。Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a casing, an exhaust gas inflow pipe 2 is provided at one end thereof, and an exhaust gas outflow pipe 3 is provided at the other end thereof. 3, an exhaust gas conduit 4 provided with a large number of exhaust gas flow holes 5 penetrates the center of the casing 1,
Due to the plurality of resistance plates 6, 9 and 11, the space inside the casing is provided with a plurality of expansion chambers 13 and 14,
It is divided into 15.
【０００７】本発明は上記構造の抵抗型消音器におい
て、前記抵抗板６及び１１には図３にも示すように、排
気ガスを通過させる大径穴７，１２を開設し、この抵抗
板６及び１１との間の抵抗板９には図４に示すように、
背圧低減用の小孔１０を開設したものである。In the resistance type silencer of the above structure according to the present invention, the resistance plates 6 and 11 are provided with large diameter holes 7 and 12 through which exhaust gas passes, as shown in FIG. As shown in FIG. 4, the resistance plate 9 between the electrodes 11 and 11 is
The small hole 10 for reducing back pressure is opened.
【０００８】また、前記排気ガスを通過させる大径穴
７，１２を開設した抵抗板６及び１１が配置されている
部位の排気ガス導管４内は遮断板８ａ，８ｂによって塞
がれている。Further, the inside of the exhaust gas conduit 4 where the resistance plates 6 and 11 having the large-diameter holes 7 and 12 through which the exhaust gas passes is arranged is blocked by the blocking plates 8a and 8b.
【０００９】本発明は上記の通りの構造であるから、排
気ガス流入管２から流入した排気ガスは排気ガス導管４
の排気ガス流通穴５より拡張室１３に入り、抵抗板６の
大径穴７を通過して拡張室１４に入る。Since the present invention has the above-described structure, the exhaust gas flowing from the exhaust gas inflow pipe 2 is exhaust gas conduit 4
From the exhaust gas circulation hole 5 into the expansion chamber 13, passes through the large diameter hole 7 of the resistance plate 6 and enters into the expansion chamber 14.
【００１０】この拡張室１４内に入った排気ガスは排気
ガス流通穴５から排気ガス導管４を介して拡張室１５内
に導かれると共に、抵抗板９の小孔１０を通って拡張室
１５内に流入する。従って、排気ガスの背圧が低減され
る。The exhaust gas that has entered the expansion chamber 14 is guided from the exhaust gas circulation hole 5 into the expansion chamber 15 via the exhaust gas conduit 4, and also passes through the small holes 10 in the resistance plate 9 into the expansion chamber 15. Flow into. Therefore, the back pressure of the exhaust gas is reduced.
【００１１】前記拡張室１５内に入った排気ガスは抵抗
板１１の大径穴１２を通過して排気ガス流通穴５から排
気ガス導管４に入り、排気ガス流出管３より排出され
る。The exhaust gas that has entered the expansion chamber 15 passes through the large diameter hole 12 of the resistance plate 11 and enters the exhaust gas conduit 4 through the exhaust gas flow hole 5 and is discharged from the exhaust gas outflow pipe 3.
【００１２】[0012]
【発明の効果】以上述べたように本発明によると、複数
の抵抗板により複数の拡張室に区分された抵抗型消音器
において、排気ガスを通過させる大径穴を開設した抵抗
板と、背圧低減用の小孔を開設した抵抗板とを交互に配
置した構成であるから、消音性能を維持したうえで、排
気ガスの背圧を低減する利点を有している。As described above, according to the present invention, in a resistance silencer divided into a plurality of expansion chambers by a plurality of resistance plates, a resistance plate having a large diameter hole through which exhaust gas passes and a back Since it has a configuration in which resistance plates having small holes for reducing pressure are alternately arranged, it has an advantage of reducing the back pressure of exhaust gas while maintaining the sound deadening performance.
【図１】本発明の断面図FIG. 1 is a sectional view of the present invention.
【図２】本発明の他の実施例を示す断面図FIG. 2 is a sectional view showing another embodiment of the present invention.
【図３】図１のＡ−Ａ線面図FIG. 3 is a sectional view taken along the line AA of FIG.
【図４】図１のＢ−Ｂ線面図FIG. 4 is a BB line view of FIG.
１ ケーシング ２ 排気ガス流入管 ３ 排気ガス流出管 ４ 排気ガス導管 ５ 排気ガス流通穴 ６ 抵抗板 ７ 排気ガスを通過させる大径穴 ８ａ 遮断板 ８ｂ 遮断板 ９ 抵抗板 １０ 背圧低減用の小孔 １１ 抵抗板 １２ 排気ガスを通過させる大径穴 １３ 拡張室 １４ 拡張室 １５ 拡張室 1 Casing 2 Exhaust Gas Inflow Pipe 3 Exhaust Gas Outflow Pipe 4 Exhaust Gas Conduit 5 Exhaust Gas Flow Hole 6 Resistance Plate 7 Large Diameter Hole for Passing Exhaust Gas 8a Blocking Plate 8b Blocking Plate 9 Resistance Plate 10 Small Hole for Back Pressure Reduction 11 resistance plate 12 large diameter hole for passing exhaust gas 13 expansion chamber 14 expansion chamber 15 expansion chamber
Claims (1)
ガス導管がケーシング内の中心を貫通し、複数の抵抗板
によって前記ケーシング内の空間が排気ガスの流れ方向
に複数の拡張室に区分された抵抗型消音器において、排
気ガスを通過させる大径穴を開設した抵抗板と、背圧低
減用の小孔を開設した抵抗板とを交互に配置したことを
特徴とする消音器。1. An exhaust gas conduit provided with a large number of exhaust gas passage holes penetrates through the center of the casing, and a plurality of resistance plates divide the space in the casing into a plurality of expansion chambers in the exhaust gas flow direction. In the resistance type silencer described above, a resistance plate having a large diameter hole for passing exhaust gas and a resistance plate having a small hole for reducing back pressure are alternately arranged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6204198A JPH0849521A (en) | 1994-08-08 | 1994-08-08 | Muffler |
| CN95109058A CN1062639C (en) | 1994-08-08 | 1995-08-04 | Silencing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6204198A JPH0849521A (en) | 1994-08-08 | 1994-08-08 | Muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0849521A true JPH0849521A (en) | 1996-02-20 |
Family
ID=16486461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6204198A Pending JPH0849521A (en) | 1994-08-08 | 1994-08-08 | Muffler |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0849521A (en) |
| CN (1) | CN1062639C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226421A (en) * | 2011-05-26 | 2011-10-26 | 无锡百发电机有限公司 | Heat collecting silencer of internal combustion engine |
| KR101108799B1 (en) * | 2006-12-21 | 2012-01-31 | 현대중공업 주식회사 | Low-frequency silencer using hole array divided into virtual compartments |
| JP2012180792A (en) * | 2011-03-02 | 2012-09-20 | Hitachi-Ge Nuclear Energy Ltd | Muffler |
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454286A (en) * | 2000-08-18 | 2003-11-05 | 刘俊富 | Muffler for engine for enhancing back pressure and discharge flow |
| CN1311186C (en) * | 2003-05-23 | 2007-04-18 | 株式会社神户制钢所 | Noise reduction structure of porous plate |
| CN101165320B (en) * | 2006-10-18 | 2010-09-01 | 方建升 | Grating type harmonic wave sound absorber |
| CN101446219B (en) * | 2008-10-31 | 2011-03-30 | 李定初 | Carbon emission reduction muffler for vehicle |
| CN103256258A (en) * | 2013-05-10 | 2013-08-21 | 同济大学 | Silencer for fuel cell car air auxiliary system |
| CN103334821B (en) * | 2013-07-08 | 2015-06-17 | 山东大学 | Transverse flow perforated pipe silencer structure with flow blocking grid |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU848713A2 (en) * | 1979-11-21 | 1981-07-23 | Научно-Исследовательский Конструк-Topcko-Технологический Институттракторных И Комбайновых Двигателей | Exhaust silencer for i.c.engine |
| JPS56143310A (en) * | 1980-03-17 | 1981-11-09 | Hiruzu Ind Ltd | Muffler and silencing method |
-
1994
- 1994-08-08 JP JP6204198A patent/JPH0849521A/en active Pending
-
1995
- 1995-08-04 CN CN95109058A patent/CN1062639C/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101108799B1 (en) * | 2006-12-21 | 2012-01-31 | 현대중공업 주식회사 | Low-frequency silencer using hole array divided into virtual compartments |
| JP2012180792A (en) * | 2011-03-02 | 2012-09-20 | Hitachi-Ge Nuclear Energy Ltd | Muffler |
| CN102226421A (en) * | 2011-05-26 | 2011-10-26 | 无锡百发电机有限公司 | Heat collecting silencer of internal combustion engine |
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1062639C (en) | 2001-02-28 |
| CN1120629A (en) | 1996-04-17 |
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