JPH0223801Y2 - - Google Patents
Info
- Publication number
- JPH0223801Y2 JPH0223801Y2 JP1983018966U JP1896683U JPH0223801Y2 JP H0223801 Y2 JPH0223801 Y2 JP H0223801Y2 JP 1983018966 U JP1983018966 U JP 1983018966U JP 1896683 U JP1896683 U JP 1896683U JP H0223801 Y2 JPH0223801 Y2 JP H0223801Y2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- air
- negative pressure
- baffle plate
- ventilation holes
- 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
- 238000009423 ventilation Methods 0.000 claims description 19
- 239000000428 dust Substances 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
【考案の詳細な説明】
本考案はエキゾーストリターダ（排気ブレー
キ）用エアクリーナに関する。[Detailed Description of the Invention] The present invention relates to an air cleaner for an exhaust retarder (exhaust brake).
デイーゼルエンジンにおいて、エンジンブレー
キの効果を高めるベくエンジンの排気管にバルブ
を設けて所定時に排気管を閉塞しあるいは絞りエ
ンジンを圧縮機として作用させ制動を行うエキゾ
ーストリターダがメインブレーキ（摩擦式ブレー
キ）と共に併用されている。バルブのアクチユエ
ータとしては一般に負圧作動式のダイヤフラム装
置が用いられ該ダイヤフラム装置に負圧及び大気
を選択的に作用させることによりバルブの開閉を
行う。アクチユエータの作動即ち、負圧を解除す
る大気の導入部には清浄な大気を導入するための
フイルタを内蔵したエアクリーナが設けられてい
る。しかるに、従来エアクリーナのこのフイルタ
エレメントは直接大気取入口に置かれているため
に泥水等が付着し易くその結果フイルタがめづま
りを起こす可能性がある。フイルタがめづまりを
起こすと大気導入ができなくなるのでエキゾース
トリターダの作動解除ができなくなる。 In diesel engines, in order to increase the effect of engine braking, a valve is installed in the engine's exhaust pipe to block the exhaust pipe at a predetermined time or throttle the engine to act as a compressor and perform braking.The exhaust retarder is the main brake (friction type brake). It is used together with. A negative pressure operated diaphragm device is generally used as a valve actuator, and the valve is opened and closed by selectively applying negative pressure and atmospheric air to the diaphragm device. An air cleaner having a built-in filter for introducing clean air is provided at the air introduction portion for operating the actuator, that is, for releasing negative pressure. However, since the filter element of conventional air cleaners is placed directly at the air intake, muddy water and the like tend to adhere thereto, which may cause the filter to become clogged. If the filter becomes clogged, atmospheric air cannot be introduced, making it impossible to release the exhaust retarder.
本考案はこのような問題を解消すべくフイルタ
エレメントの上流側に泥水等を除去する邪魔板を
設けることにより泥水等がフイルタエレメントま
で侵入するのを防止したエアクリーナを提供せん
とするものである。 In order to solve this problem, the present invention provides an air cleaner that prevents muddy water and the like from penetrating into the filter element by providing a baffle plate for removing muddy water and the like on the upstream side of the filter element.
以下本考案の好ましい実施例につき図面を参照
して詳細に説明する。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
第１図はエキゾーストリターダの全体システム
を示す図でエキゾーストリターダはエンジン（デ
イーゼルエンジン）１の排気管３内に設けられる
バルブ５とこのバルブ５を開閉作動せしめるダイ
ヤフラム式アクチユエータ７とにより構成され
る。アクチユエータ７の負圧作動室９は導管１１
により負圧切換電磁スイツチ１５を介して大気及
び負圧源（バキユームポンプ）に選択的に連結さ
れる。負圧切換スイツチ１５はアクセルペダルス
イツチのON信号、クラツチペダルスイツチの
ON信号、車速信号及びニユートラルスイツチの
OFF信号等の各種パラメータ信号Ｓに応じてリ
レーコンピユータ１３からの制御信号S′により切
換作動せしめられる。このとき燃料噴射もカツト
される。エキゾーストリターダ自体の構成及び作
動自体は公知でありまた本考案とは直接関係ない
ので詳細な説明は省略する。 FIG. 1 shows the entire system of an exhaust retarder. The exhaust retarder is composed of a valve 5 provided in an exhaust pipe 3 of an engine (diesel engine) 1 and a diaphragm actuator 7 for opening and closing the valve 5. The negative pressure working chamber 9 of the actuator 7 is connected to the conduit 11
It is selectively connected to the atmosphere and a negative pressure source (vacuum pump) via a negative pressure switching electromagnetic switch 15. Negative pressure changeover switch 15 outputs the ON signal for the accelerator pedal switch and the ON signal for the clutch pedal switch.
ON signal, vehicle speed signal and neutral switch
The switching operation is performed by a control signal S' from the relay computer 13 in response to various parameter signals S such as an OFF signal. At this time, fuel injection is also cut off. The configuration and operation of the exhaust retarder itself are well known, and are not directly related to the present invention, so a detailed explanation will be omitted.
本考案はアクチユエータ７の負圧作動室９への
負圧を解除する、即ちバルブ５の作動を解除する
（開弁する）大気の導入管１９の取入口に設けら
れるエアクリーナ２１に関するものである。エア
クリーナ２１は大気の塵埃等がアクチユエータ７
の負圧作動室９に入り込むのを防止するために設
けられるもので内部にフイルタ３１（第２図）を
有する。しかるに従来は上述の如くエアクリーナ
２１内のフイルタは直接大気取入口にさらされて
いたのでここに泥水等が付着し易くフイルタのめ
づまりを起こす可能性があつた。そのため本考案
によればエアクリーナに第２図に示す如き改良が
なされている。第２図において直立載置される筒
状のダストカバー３０の上端は大気導入管１９に
連結され、底端３０Ａは大気に開口している。ダ
ストカバー３０内にはその上端にリテーナ３９に
よりフイルタ（エレメント）３１が取り付けられ
その下部にはキヤツプエアクリーナエレメント３
５及びセパレータエアクリーナエレメント３７が
取り付けられる。これら両エレメントには適当な
数の通気孔が形成されている。本考案によればダ
ストカバー３０内においてキヤツプエアクリーナ
エレメント３５の上流には通気孔を有する複数枚
（図では３枚）の邪魔板４１，４３，４５が設け
られる。これら邪魔板はすり鉢状（断面略Ｖ字
形）をしており夫々の通気孔４１Ａ，４３Ａ，４
５Ａの配列に応じてその上下の向きが適当に決め
られる。即ち、邪魔板４１，４３，４５をすり鉢
とするのはそこを通過した泥水を邪魔板のテーパ
に沿つて通気孔に集めそこから下方に排出し得る
ようにするためであるから、例えば邪魔板４３の
如く通気孔がその中心にある場合には凹状となる
ように配置され、邪魔板４１，４５の如く通気孔
が周縁部近傍に形成される場合には凸状となるよ
うに配置される。通気孔の形状、配置、数等は図
示のものに何ら制限されないが、隣接する邪魔板
の通気孔どうしが大気の流れ方向（矢印）に見て
同一直線上にこないようにオフセツト配置するこ
とが重要である。即ち大気の流路をあたかも“ラ
ビリンス（迷路）”の如くくねらせることにより、
最上流の邪魔板４１の通気孔４１Ａを通過した泥
水をその下流の第２番目の邪魔板４３で妨害し、
更に２番目の邪魔板４３の通気孔４３Ａを通過し
た泥水はその下流の第３番目の邪魔板４５で妨害
し、かつその開口した底端３０Ａから塵埃をその
重み及び邪魔板の４１，４３，４５のすり鉢形状
により自己排出しようという構想に立脚するもの
である。従つて第２番目の邪魔板４３の中心通気
孔４３Ａを例えば第１、第３の邪魔板４１，４５
の通気孔４１Ａ，４５Ａと同様に周縁に複数個形
成した通気孔とすることもできるがその場合には
第２番目の邪魔板４３の位相（取付角度位置）を
第１、第３の邪魔板に対して例えば60゜づらせば
よい（その場合邪魔板４３も凸状となるように配
置されることになる）。その結果第２番目の邪魔
板４３の通気孔は大気の流れ方向にみて丁度他の
邪魔板４１，４５の通気孔の中央に位置すること
になる（60゜づつオフセツトされる）。 The present invention relates to an air cleaner 21 installed at the intake port of the atmospheric air introduction pipe 19 for releasing the negative pressure in the negative pressure working chamber 9 of the actuator 7, that is, releasing the operation of the valve 5 (opening the valve). The air cleaner 21 is contaminated with atmospheric dust, etc.
It is provided to prevent the negative pressure from entering the negative pressure working chamber 9, and has a filter 31 (FIG. 2) inside. However, in the past, as described above, the filter in the air cleaner 21 was directly exposed to the air intake, so muddy water and the like were likely to adhere thereto, potentially causing the filter to become clogged. Therefore, according to the present invention, the air cleaner is improved as shown in FIG. In FIG. 2, the upper end of the cylindrical dust cover 30 placed upright is connected to the atmosphere introduction pipe 19, and the bottom end 30A is open to the atmosphere. A filter (element) 31 is attached to the upper end of the dust cover 30 by a retainer 39, and a cap air cleaner element 3 is attached to the lower part of the dust cover 30.
5 and a separator air cleaner element 37 are attached. Both elements are provided with an appropriate number of ventilation holes. According to the present invention, a plurality of (three in the figure) baffle plates 41, 43, and 45 having ventilation holes are provided upstream of the cap air cleaner element 35 in the dust cover 30. These baffle plates are mortar-shaped (approximately V-shaped in cross section), and have respective ventilation holes 41A, 43A, 4.
The vertical direction is appropriately determined according to the arrangement of 5A. That is, the reason why the baffle plates 41, 43, and 45 are made into mortars is to collect the muddy water that has passed through the mortar into the ventilation hole along the taper of the baffle plate and discharge it downward from there. When the ventilation hole is located at the center as in 43, the air hole is arranged in a concave shape, and when the air hole is formed near the periphery as in baffle plates 41 and 45, it is arranged in a convex shape. . The shape, arrangement, number, etc. of the ventilation holes are not limited to those shown in the drawings, but they may be arranged offset so that the ventilation holes of adjacent baffle plates are not on the same straight line when viewed in the direction of air flow (arrow). is important. In other words, by twisting the atmospheric flow path like a "labyrinth",
The muddy water that has passed through the ventilation hole 41A of the most upstream baffle plate 41 is blocked by the second baffle plate 43 downstream thereof,
Furthermore, the muddy water that has passed through the ventilation hole 43A of the second baffle plate 43 is blocked by the third baffle plate 45 downstream thereof, and the dust is removed from the open bottom end 30A of the baffle plate 41, 43, and the weight of the muddy water. It is based on the concept of self-draining with the 45 mortar shape. Therefore, the center ventilation hole 43A of the second baffle plate 43 can be replaced with, for example, the first and third baffle plates 41, 45.
Similarly to the ventilation holes 41A and 45A, a plurality of ventilation holes may be formed on the periphery, but in that case, the phase (mounting angle position) of the second baffle plate 43 is the same as that of the first and third baffle plates. For example, the baffle plate 43 may be arranged to have a convex shape. As a result, the ventilation hole of the second baffle plate 43 is located exactly in the center of the ventilation holes of the other baffle plates 41 and 45 (offset by 60 degrees) when viewed in the direction of air flow.
また好ましくは各邪魔板に形成される通気孔は
その合計通路面積が導入管１９の通路面積と等し
くなるようにし各邪魔板が吸気抵抗とならないよ
うにする。即ち、通気孔４１Ａ，４３Ａ，４５Ａ
の通路面積を夫々S1，S2，S3、導入管１９の通路
面積をＳとすると、図示実施例の場合には
3S1＝S2＝3S3＝Ｓ
となつている。 Preferably, the total passage area of the ventilation holes formed in each baffle plate is equal to the passage area of the introduction pipe 19, so that each baffle plate does not act as an intake resistance. That is, the ventilation holes 41A, 43A, 45A
Let S 1 , S 2 , and S 3 be the passage areas of the inlet tubes, respectively, and S be the passage area of the introduction pipe 19. In the illustrated embodiment, 3S 1 =S 2 =3S 3 =S.
尚エレメント３５，３７の各通気孔の合計通路
面積も好ましくはＳに等しくなつている。邪魔板
の数を増やせば泥水侵入防止効果は一層顕著とな
る。 Incidentally, the total passage area of the respective ventilation holes of the elements 35 and 37 is preferably also equal to S. If the number of baffle plates is increased, the effect of preventing muddy water intrusion will become even more remarkable.
以上の如くフイルタエレメントの上流に特殊な
邪魔板を配列することにより泥水等のフイルタエ
レメントへの侵入を有効に防止すると共に捕集し
た塵埃を自己排出しその目づまりを防止すること
ができる。 By arranging the special baffle plate upstream of the filter element as described above, it is possible to effectively prevent muddy water and the like from entering the filter element, and also to self-discharge the collected dust and prevent clogging thereof.
第１図はエキゾーストリターダの構造の一例を
示す図、第２図は本考案に係るエアクリーナを縦
断面図で示しかつ大気の流れ方向から見た各邪魔
板の形状を示す図。
２１……エアクリーナ、３１……フイルタ、４
１，４３，４５……邪魔板、４１Ａ，４３Ａ，４
５Ａ……通気孔。
FIG. 1 is a diagram showing an example of the structure of an exhaust retarder, and FIG. 2 is a longitudinal sectional view of an air cleaner according to the present invention, and a diagram showing the shape of each baffle plate as seen from the direction of air flow. 21...Air cleaner, 31...Filter, 4
1, 43, 45... Baffle plate, 41A, 43A, 4
5A...Vent hole.
Claims (1)
の清浄な大気を供給するフイルタ内蔵式エアクリ
ーナであつて、直立した筒状のダストカバー内に
フイルタおよび空気の流れ方向にみて該フイルタ
の上流側に複数のフイルタが上下に離間して配設
され、該各邪魔板は通気孔を有すした略すり鉢状
に形成され、これら邪魔板の通気孔は隣接邪魔板
間どうしの通気孔が一直線上にこないようにオフ
セツト配置され、かつ前記ダストカバーはその空
気の流れ方向にみて上流端に相当する底端におい
て開口していることを特徴とするエキゾーストリ
ターダ用エアクリーナ。 This is an air cleaner with a built-in filter that supplies clean air to release negative pressure to a negative pressure-operated exhaust retarder, and includes a filter inside an upright cylindrical dust cover and a plurality of filters on the upstream side of the filter when viewed in the air flow direction. filters are vertically spaced apart, and each baffle plate is formed into a substantially conical shape with ventilation holes, and the ventilation holes of these baffle plates do not align with each other in a straight line. 1. An air cleaner for an exhaust retarder, wherein the dust cover is arranged in an offset manner, and the dust cover is open at a bottom end corresponding to an upstream end when viewed in the air flow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1896683U JPS59126165U (en) | 1983-02-14 | 1983-02-14 | Air cleaner for exhaust retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1896683U JPS59126165U (en) | 1983-02-14 | 1983-02-14 | Air cleaner for exhaust retarder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59126165U JPS59126165U (en) | 1984-08-24 |
| JPH0223801Y2 true JPH0223801Y2 (en) | 1990-06-28 |
Family
ID=30150124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1896683U Granted JPS59126165U (en) | 1983-02-14 | 1983-02-14 | Air cleaner for exhaust retarder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59126165U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2526309Y2 (en) * | 1990-09-14 | 1997-02-19 | 日産ディーゼル工業株式会社 | Waterproof structure of solenoid valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5094635U (en) * | 1973-12-28 | 1975-08-08 | ||
| JPS5688941U (en) * | 1979-12-11 | 1981-07-16 |
-
1983
- 1983-02-14 JP JP1896683U patent/JPS59126165U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59126165U (en) | 1984-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5579744A (en) | Crankcase ventilator for internal combustion engines | |
| US4212659A (en) | Air-intake devices for internal combustion engines | |
| US4548166A (en) | Engine air cleaner and duct arrangement | |
| EP0117785B1 (en) | Vacuum check valve | |
| US6491734B1 (en) | Air cleaner for internal combustion engine with internally formed air inlet pipe | |
| JPH0223801Y2 (en) | ||
| US4259099A (en) | Gas filter device | |
| KR200152612Y1 (en) | Snorkel structure of automobile engine | |
| JPS597212U (en) | Oil separator for engine | |
| JPS5936686Y2 (en) | Air cleaner with auxiliary intake port | |
| JPS6141949Y2 (en) | ||
| JPS6221298Y2 (en) | ||
| JPS6220692Y2 (en) | ||
| JPH09137710A (en) | Blowby gas ventilation device for engine | |
| JPS6113736Y2 (en) | ||
| JPH051629Y2 (en) | ||
| JPH09195813A (en) | Intake air pressure detector | |
| JPH068248Y2 (en) | V-type engine ventilation structure | |
| JPS6215447Y2 (en) | ||
| JPH0315808Y2 (en) | ||
| JPS6030414Y2 (en) | Secondary air introduction device for internal combustion engines | |
| JPS6038019Y2 (en) | Secondary air supply device for internal combustion engine | |
| JPH0531230Y2 (en) | ||
| JPH0332774Y2 (en) | ||
| JPS6124648Y2 (en) |