WO1990015232A1 - Standing wave noise processing device for internal combustion engine or the like - Google Patents
Standing wave noise processing device for internal combustion engine or the like Download PDFInfo
- Publication number
- WO1990015232A1 WO1990015232A1 PCT/JP1990/000708 JP9000708W WO9015232A1 WO 1990015232 A1 WO1990015232 A1 WO 1990015232A1 JP 9000708 W JP9000708 W JP 9000708W WO 9015232 A1 WO9015232 A1 WO 9015232A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- members
- standing wave
- wave noise
- combustion engine
- internal combustion
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/008—Sound insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/06—Endless member is a belt
Definitions
- the present invention relates to a standing wave noise processing device for an internal combustion engine such as an internal combustion engine that reduces a standing wave generated from a partially surrounded space such as an internal combustion engine.
- the standing wave can be effectively reduced by mounting the space in advance.
- the sound source is a non-combustible engine
- the space for generating standing waves is formed by trunnions, etc., which are self-sustained in plane motion that supports the internal combustion engine, etc.
- relative displacement between the members was involved, and there were problems such as the inability to reduce the standing wave with sound-absorbing materials that had been molded in advance.
- the present invention is an improvement of such a conventional problem, in which a plurality of members forming a space are relatively displaced.
- the invention disclosed is intended to provide a standing wave noise processing device for a fuel-burning engine or the like, which is capable of processing the standing wave noise.
- a pair of flexible members are provided so as to deflect an air duct formed by a plurality of members which are relatively displaced in a combustion engine or the like.
- the sliding members and the heads that act on the mating surfaces of the flexible members are provided. It is.
- Fig. 1 is a front view of one embodiment of the present invention
- Fig. 2 is a side view
- Fig. 3 is a detailed view of a main part.
- 1 is an internal combustion engine, the front of which is supported by trunnions 2.
- the processing device 5 includes a pair of flexible members 5a and 5b formed so as to surround a space, and one of the members 5a is disposed on the trunnion 2 side. Further, the other member 5b is fixed to the front cover 3 side by means such as bonding.
- slide beads 5c are provided so as to be in sliding contact with each other.
- the above-mentioned slide 5c is formed of a slippery material, and has a size corresponding to the relative displacement so that the space can always be sealed. It has been decided.
- the slide pad 5c may be formed integrally with the flexible members 5a and 5b as long as the displacement speed and wear resistance are satisfactory.
- the sliding surface of the slide pad 5c may be a flat surface or a tapered surface.
- this invention provides a pair of flexible members so as to surround the space formed by the members that are relatively displaced. Since the flexible members are fixed to the members that are displaced relative to each other, and the sliding pads that slide on each other are provided on the mating surfaces of the flexible members, the relative displacement is achieved. It is possible to reduce standing wave noise generated from the space formed between the members.
- the standing wave noise emitted from the members installed with a large number of spaces around, such as a combustion engine can be effectively reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Prevention Devices (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Harvester Elements (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
A standing wave noise processing device for an internal combustion engine, etc., wherein a pair of flexible members (5a, 5b) are provided so as to surround a space (4) defined by members (2, 3) that undergo relative displacement, and the members (5a, 5b) are respectively locked to the members (2, 3), while a slide pad (5c) consisting of pieces that mutually slide is provided on the mating faces of the members (5a, 5b). Thus, the standing wave noise generated in the space (4) can be effectively reduced.
Description
明 害 内燃機関等 の 定在波騒音処理装置 技 fcr 分 Light damage Standing wave noise processing equipment for internal combustion engines, etc.
こ の発 明 は 内燃機関等 の 部分囲繞 さ れ た 空間 よ り 発生 す る 定在波を低缄処理す る 内燃機藺等の 定在波騒音処理 装置 に関 す る 。 背 景 技 術 The present invention relates to a standing wave noise processing device for an internal combustion engine such as an internal combustion engine that reduces a standing wave generated from a partially surrounded space such as an internal combustion engine. Background technology
一般 に 音源を囲む と 音源 の 周 囲 に 空間 (音場) が増大 し , 部分的 に 開放 さ れ た部位 よ り 大 き な ノヽ' ヮ レ ベ ル の 騒 音が伝播 さ れ る 。 In general, when a sound source is surrounded, the space (sound field) increases around the sound source, and a larger noise level is propagated from a partly opened part.
こ れ を 定在 波 と 称 し て い る が, こ の定在波 は そ の 空間 に ウ レ タ ン等 の吸音材 を充瑱す る こ と に よ り 抑制 す る こ と が 可能 で あ る 。 This is called a standing wave, and this standing wave can be suppressed by filling the space with a sound absorbing material such as urethane. is there .
ま た 空間 を形成 す る 複数 の 部材が相対的 に 変位 し な い 場合 は, 予 め 空間 に装塡す る こ と に よ り 定在波を 効果的 に 低 减 す る こ と が で き る 。 If the members forming the space do not displace relative to each other, the standing wave can be effectively reduced by mounting the space in advance. .
し か し 音源が內 燃機関等で あ っ て , 定在波 を発生す る 空間 が内 燃機関等 を支持す る 面 動 自 在 な ト ラ ニ オ ン な ど に よ り 形成 さ れて い る 場合 , 部材間 に 相対的 な 変 位が伴 う こ と か ら 予 め一体成形 し た吸音材等で は定在波 を低減 処理で き な い な ど の 不具合が あ っ た 。 However, the sound source is a non-combustible engine, and the space for generating standing waves is formed by trunnions, etc., which are self-sustained in plane motion that supports the internal combustion engine, etc. In some cases, relative displacement between the members was involved, and there were problems such as the inability to reduce the standing wave with sound-absorbing materials that had been molded in advance.
従 っ て こ の 発明 は こ の よ う な 従来 の 不具 合 を 改善 し て 空間 を形成す る 複数 の 部材 が相対変位す る も の で あ っ て
も 定在波騒音 の処理を 可能 に し た, 內燃機関等 の 定在波 騒音処理装置を提供 し ょ う と す る こ と を 目的 と し て い る 発 明 の 開 示 Therefore, the present invention is an improvement of such a conventional problem, in which a plurality of members forming a space are relatively displaced. The invention disclosed is intended to provide a standing wave noise processing device for a fuel-burning engine or the like, which is capable of processing the standing wave noise.
こ の発明 は 內燃機関等 に お い て相対変位す る 複数 の 部 材に よ り 形成 さ れた 空藺を面撓す る よ う に 一対 の 可撓部 材を設けて, こ れ ら 可撓部材を そ れぞれ相対変位 す る 部 材に 固着す る と共 に, 上記可撓部材 の合せ面 に互 い に 措 動す る ス ラ イ ド ノ、' ッ ド を設 け た も の で あ る 。 According to the present invention, a pair of flexible members are provided so as to deflect an air duct formed by a plurality of members which are relatively displaced in a combustion engine or the like. In addition to the fixing of the flexible members to the members that are relatively displaced respectively, the sliding members and the heads that act on the mating surfaces of the flexible members are provided. It is.
こ の よ う に構成す る こ と に よ り , 相対変位す る 部材 の 間に 形成 さ れ た複雑な 形状 の 空藺ょ り 発せ ら れ る 定在波 騒音を効果的 に処理で き る よ う に な る の で , 内燃機関 の よ う に多 数の 空簡 を も っ て 設置 さ れた部材簡 よ り 発す る 定在波 S音を効果的に 低弒で き る 。 図面 の簡単な 説明 With this configuration, it is possible to effectively treat the standing wave noise generated between the relatively displaced members and the complicated shape formed between the members. As a result, it is possible to effectively reduce the standing-wave S noise generated by the members installed with a large number of air-conditioners, such as an internal combustion engine. Brief description of the drawings
第 1 図 は こ の発明 の 一実施例 の 正面図, 第 2 図 は側面 図, 第 3 図 は要部 の詳細図で あ る 。 発明 を実施す る た め の 最良 の形態 Fig. 1 is a front view of one embodiment of the present invention, Fig. 2 is a side view, and Fig. 3 is a detailed view of a main part. BEST MODE FOR CARRYING OUT THE INVENTION
こ の発 明 の一実施例 を図面を参照 し て 詳述す る 。 One embodiment of the present invention will be described in detail with reference to the drawings.
図 に お い て 1 は 内燃機関で, 前部が ト ラ ニ オ ン 2 に よ り 支持 さ れて い る 。 In the figure, 1 is an internal combustion engine, the front of which is supported by trunnions 2.
ま た 内 燃機闋 1 の前部に は フ ロ ン ト カ ノ ー 3 と ト ラ ニ ォ ン 2 の 藺 に 定在波の 発生源 と な る 空藺 4 が形成 さ れて い る と共 に , こ の 空閫 4 を囲繞す る よ う に こ の 処理装置
5 が設 け ら れ て い る 。 In addition, at the front of the internal combustion engine 闋 1, there is formed an air rush 4 which is a source of standing waves at the front canopy 3 and the rush of the trunnion 2. Together, this processing unit is designed to surround this space 4. 5 are set.
上記処理装置 5 は 空間を 囲む よ う に形成 さ れた 一対 の 可撓部材 5 a , 5 b よ り 構成 さ れて い て , 一方 の 部材 5 a は ト ラ ニ オ ン 2 側 に , そ し て 他方 の部材 5 b は フ ロ ン ト カ バー 3 側 に接着等 の手段で 固着 さ れて い る 。 The processing device 5 includes a pair of flexible members 5a and 5b formed so as to surround a space, and one of the members 5a is disposed on the trunnion 2 side. Further, the other member 5b is fixed to the front cover 3 side by means such as bonding.
そ して こ れ ら 部材 5 a , 5 b の合せ面 に は , 互 い に 摺 接す る.よ う ス ラ イ · ッ ド 5 c が設 け ら れて い る 。 And, on the mating surfaces of these members 5a and 5b, slide beads 5c are provided so as to be in sliding contact with each other.
上記 ス ラ イ ' ッ ド 5 c は滑性の あ る 材料 に よ り 形成 さ れて い て , 常 に 空間 が密閉 で き る よ う に 相対変位量 に応 じ て そ の 大 き さ が決定 さ れて い る 。 The above-mentioned slide 5c is formed of a slippery material, and has a size corresponding to the relative displacement so that the space can always be sealed. It has been decided.
な お ス ラ イ ド パ ッ ド 5 c は変位速度及び耐摩耗性等が 満足で き れば 可撓部材 5 a , 5 b と 一体 に 形成 し て も よ い 。 The slide pad 5c may be formed integrally with the flexible members 5a and 5b as long as the displacement speed and wear resistance are satisfactory.
ま た ス ラ イ ド パ ッ ド 5 c の摺動面 は平面で も テ ー パ面 で も よ い 。 産業上 の 利 用 可能性 The sliding surface of the slide pad 5c may be a flat surface or a tapered surface. Industrial applicability
こ の発 明 は 以上詳述 し た よ う に, 相対変位 す る 部材 に よ り 形成 さ れ た 空間を囲繞す る よ う に 一対 の 可撓部材を 設 け て , そ れぞ れ の 可撓部材を相対変位す る 部材 に固着 す る と 共 に , 各可撓部材 の 合せ面 に 互 い に 摺動す る ス ラ ィ ド バ ッ ド を 設 け た こ と か ら , 相対変位す る 部材間 に 形 成 さ れた 空間 よ り 発生 す る 定在波騒音 の 低减処理 が可能 i な る 。 As described in detail above, this invention provides a pair of flexible members so as to surround the space formed by the members that are relatively displaced. Since the flexible members are fixed to the members that are displaced relative to each other, and the sliding pads that slide on each other are provided on the mating surfaces of the flexible members, the relative displacement is achieved. It is possible to reduce standing wave noise generated from the space formed between the members.
こ れ に よ つ て 內 燃機関等 の よ う に 周囲 に 多 数 の 空間 を も っ て 設置 さ れた 部材閭 ょ り 発せ ら れ る 定在波騒音を 効
果的 に 低 缄 す る こ と が で き る よ う に な る
As a result, the standing wave noise emitted from the members installed with a large number of spaces around, such as a combustion engine, can be effectively reduced. To be able to effectively reduce
Claims
請 求 の 範 囲 α) 相対変位す る 複数 の部材 に よ り 形成 さ れ た 空間を 囲 繞す る よ う に 一対 の 可撓部材を設 け て こ れ ら 可撓部材を そ れぞれ相対変位す る 部材 に 固着す る と 共に , 上記可撓 部材 の合せ面 に互 い に 摺動す る ス ラ イ ド パ ッ ド を設 け た こ と を特徴 と す る 內燃機闢等 の 定在波騒音処理装置。 Scope of Claim α) A pair of flexible members are provided so as to surround a space formed by a plurality of members that are relatively displaced, and each of the flexible members is provided. In addition to being fixed to a member that is relatively displaced, a sliding pad that slides on the mating surface of the flexible member is also provided. Standing wave noise processing device.
(2) 上記 ス ラ イ ド パ ッ ド を 可撓部材 と 一体に 設 け た , 請 求 の 範囲第 1 項記載の 定在波騒音処理装置。
(2) The standing wave noise processing apparatus according to claim 1, wherein the slide pad is provided integrally with a flexible member.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1/63234U | 1989-06-01 | ||
JP1989063234U JP2517434Y2 (en) | 1989-06-01 | 1989-06-01 | Standing wave noise treatment device for internal combustion engine, etc. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990015232A1 true WO1990015232A1 (en) | 1990-12-13 |
Family
ID=13223324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1990/000708 WO1990015232A1 (en) | 1989-06-01 | 1990-05-31 | Standing wave noise processing device for internal combustion engine or the like |
Country Status (2)
Country | Link |
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JP (1) | JP2517434Y2 (en) |
WO (1) | WO1990015232A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5670250U (en) * | 1979-11-01 | 1981-06-10 | ||
JPS6041535U (en) * | 1983-08-31 | 1985-03-23 | 日野自動車株式会社 | engine soundproofing device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5143738Y2 (en) * | 1971-07-20 | 1976-10-23 | ||
JPS61142142U (en) * | 1985-02-25 | 1986-09-02 |
-
1989
- 1989-06-01 JP JP1989063234U patent/JP2517434Y2/en not_active Expired - Lifetime
-
1990
- 1990-05-31 WO PCT/JP1990/000708 patent/WO1990015232A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5670250U (en) * | 1979-11-01 | 1981-06-10 | ||
JPS6041535U (en) * | 1983-08-31 | 1985-03-23 | 日野自動車株式会社 | engine soundproofing device |
Also Published As
Publication number | Publication date |
---|---|
JPH035940U (en) | 1991-01-21 |
JP2517434Y2 (en) | 1996-11-20 |
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