JPS581643Y2 - engine air cleaner - Google Patents
engine air cleanerInfo
- Publication number
- JPS581643Y2 JPS581643Y2 JP1979133885U JP13388579U JPS581643Y2 JP S581643 Y2 JPS581643 Y2 JP S581643Y2 JP 1979133885 U JP1979133885 U JP 1979133885U JP 13388579 U JP13388579 U JP 13388579U JP S581643 Y2 JPS581643 Y2 JP S581643Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- intake pipe
- opening
- air intake
- valve
- 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
Landscapes
- Temperature-Responsive Valves (AREA)
Description
【考案の詳細な説明】
本考案は、エンジンのエアクリーナ、とくに吸気温度を
コントロールするようにした、いわゆる温調エアクリー
ナに関するものである。[Detailed Description of the Invention] The present invention relates to an engine air cleaner, and particularly to a so-called temperature-controlled air cleaner that controls intake air temperature.
従来より、外気を直接的に取入れる空気取入管の途中に
、エンジンの排気熱等を利用して加熱した暖気を取入れ
る暖気取入管を開口させ、該暖気取入管の開口部を開閉
する開閉弁を設け、この開閉弁を吸気温度の変化に応じ
て作動するバイメタルに連結することによって、吸気温
度が低いときには暖気取入管を開け一１気の取入れを多
くする一方、吸気温度が高いときには暖気取入管を閉じ
何暖気の取入れを少なくシ、吸気温度を好ましいほぼ一
定の温度に維持するようにしたバイメタル弐鳳調エアク
リーナはよく知られている。Conventionally, a hot air intake pipe that takes in warm air heated using engine exhaust heat, etc. is opened in the middle of an air intake pipe that directly takes in outside air, and the opening and closing of the hot air intake pipe is opened and closed. By providing a valve and connecting this on-off valve to a bimetal that operates according to changes in intake air temperature, the hot air intake pipe is opened when the intake air temperature is low, increasing the intake of air, while when the intake air temperature is high, the warm air intake pipe is opened. A bimetallic air cleaner in which the intake pipe is closed to reduce the intake of warm air and maintain the intake air temperature at a desirable approximately constant temperature is well known.
ところで、上記空気取入管の形状はエンジンの高負荷運
転時のような多量の吸入空気を必要とする際に吸気抵抗
にならないように考慮する必要があり、そのためクリー
ナニレメンを内蔵するケースに空気取入管を直線状に設
けなければならない制約がある。By the way, it is necessary to consider the shape of the air intake pipe mentioned above so as not to cause intake resistance when a large amount of intake air is required, such as during high-load operation of the engine. There is a restriction that the intake pipe must be installed in a straight line.
したがって、この種のバイメタル式温調エアクリーナば
、上記したように開閉弁を可撓性のバイメタルの作動力
で開閉するようにしているため、エンジンの高負荷運転
時のような多量の吸入空気を必要とする場合、開閉弁が
暖気取入管を大きく開けている状態においては、空気取
入管内に生じる強い空気流によって暖気取入管を閉じる
方向に開閉弁を偏位させ、吸気温度を低中負荷運転時よ
りも低く設定することによって実質的に吸入空気の充填
効率を向上させることができる反面、開閉弁か暖気取入
管を全閉している状態、すなわち吸気温度が充分高いと
きにおいては、エンジンの高負荷運転時に生じる空気取
入管内の強い負圧によって開閉弁が逆に開方向に偏位し
て吸気温度を必要以上に高めることになり、したがって
吸入空気の充填効率を低下させ、エンジンの出力を低下
させるといった問題があった。Therefore, in this type of bimetallic temperature-controlled air cleaner, the opening/closing valve is opened and closed by the operating force of the flexible bimetal as described above, so a large amount of intake air, such as when the engine is operating under high load, is When necessary, when the on-off valve leaves the hot air intake pipe wide open, the on-off valve is deflected in the direction of closing the hot air intake pipe due to the strong airflow generated within the air intake pipe, reducing the intake air temperature under low to medium loads. Setting the temperature lower than during operation can substantially improve the intake air filling efficiency, but on the other hand, when the on-off valve or warm air intake pipe is fully closed, that is, when the intake air temperature is high enough, the engine The strong negative pressure inside the air intake pipe that occurs during high-load operation of the engine causes the on-off valve to deviate in the opposite direction, causing the intake air temperature to rise more than necessary, thus reducing the intake air filling efficiency and reducing engine performance. There was a problem that the output was reduced.
本考案はかかる従来の問題に鑑みてなされたものであっ
て、開閉弁が暖気取入管を全閉しているとき、空気取入
管内に生じる負圧によって開閉弁が開方向に偏位するの
を防止するようにしたバイメタル式温調エアクリーナを
提供することを目的としている。The present invention was developed in view of such conventional problems, and when the on-off valve fully closes the warm air intake pipe, the on-off valve is deflected in the opening direction due to negative pressure generated inside the air intake pipe. The purpose of the present invention is to provide a bimetallic temperature-controlled air cleaner that prevents this.
すなわち、本考案のバイメタル式温調エアクリーナば、
クリーナエレメントを内蔵すりケースに略直線状に空気
を導入する空気取入管を設けるとともに、該空気取入管
の途中に開口させた暖気取入管の開口部を吸気温度の変
化に応じて作動するバイメタルに連結した開閉弁により
開閉するようにしたエンジンのエアクリーナにおいて、
開閉弁が暖気取入管の開口部を閉じたとき、空気取入管
に生じる空気流を受けて開閉弁の閉じ力を増加させる受
圧面を上記開閉弁のほぼ全面に形成したことを特徴とし
ている。In other words, the bimetallic temperature-controlled air cleaner of the present invention,
An air intake pipe that introduces air almost linearly into the slide case with a built-in cleaner element is provided, and the opening of the warm air intake pipe opened midway through the air intake pipe is made of bimetallic material that operates according to changes in intake air temperature. In an engine air cleaner that is opened and closed by a connected on-off valve,
The on-off valve is characterized in that a pressure-receiving surface is formed on almost the entire surface of the on-off valve, which increases the closing force of the on-off valve by receiving the airflow generated in the air intake pipe when the on-off valve closes the opening of the warm air intake pipe.
以下、図示の実施例に基づいて本考案を具体的に説明す
る。Hereinafter, the present invention will be explained in detail based on the illustrated embodiments.
第１図および第２図において、１は内部にクリーナエレ
メント２を配置したエアクリーナのケース、３はケース
１内に空気を取入れるため車体の前方に向けて略直線状
に設けた空気取入管、４は空気取入管３の途中に下方か
ら開口させ、エンジンの排気糸（図示せず。In FIG. 1 and FIG. 2, 1 is an air cleaner case in which a cleaner element 2 is arranged, 3 is an air intake pipe provided in a substantially straight line toward the front of the vehicle body to take air into the case 1; 4 is opened from below in the middle of the air intake pipe 3, and is connected to an engine exhaust line (not shown).
）の熱を利用して外気を加熱したうえでエアクリーナに
導く暖気取入管、５は空気取入管３に支持し、暖気取入
管４の開口部４ａを開閉する、より好１しくは両歌入管
３゜４の一方を閉じたときには他方を開くように相反的
に両歌入管３，４を開閉するバタフライ弁よりなる開閉
弁である。) is used to heat the outside air and then guide it to the air cleaner; 5 is supported on the air intake pipe 3 and opens and closes the opening 4a of the warm air intake pipe 4, more preferably a double intake pipe; This opening/closing valve consists of a butterfly valve that reciprocally opens and closes both the entrance pipes 3 and 4 so that when one of the 3° 4 is closed, the other is opened.
６はエアクリーナのケース１の内部に好！シクはクリー
ナエレメント２の内側において水平に配置したゼンマイ
状のバイメタルであって、該バイメタル６は吸気温度の
変化に応じて周方向に伸縮作動し、その伸縮作動をバイ
メタル６の中心に固定した一端がケース１外部に突出し
た回転軸７０回転力に変換し、該回転軸７の一端に固定
した回転レバー８、該回転レバー８に連結したリンク９
、該リンク９に連結した開閉レバー１０あ−よび該開閉
レバー１０に固定した弁軸１１を介して上記開閉弁５を
、吸気温度が上昇するにしたがって空気取入管３を開放
する一方、暖気取入管４の開口部４ａを閉じる方向に作
動させる。6 is suitable for the inside of case 1 of the air cleaner! The shiku is a spring-shaped bimetal arranged horizontally inside the cleaner element 2, and the bimetal 6 expands and contracts in the circumferential direction according to changes in intake air temperature. is converted into rotational force by a rotating shaft 70 protruding outside the case 1, a rotating lever 8 fixed to one end of the rotating shaft 7, and a link 9 connected to the rotating lever 8.
, the opening/closing valve 5 is opened via the opening/closing lever 10 connected to the link 9 and the valve shaft 11 fixed to the opening/closing lever 10, and the air intake pipe 3 is opened as the intake air temperature rises. The opening 4a of the entry tube 4 is operated in the direction of closing.
一方、上記開閉弁５には、第１図中鎖線で示すように、
暖気取入管４の開口部４ａを全閉したとき、該開閉弁５
が空気取入管３内の空気流Ａに対して斜めの状態に維持
されるように開閉弁５の下面に直接開口部４ａを開閉す
る隆起部５ａを設けており、該開閉弁５の上面を、空気
取入管３の空気流Ａを受けて開閉弁５の閉じ力を増加さ
せる受圧面５ｂとして利用している。On the other hand, as shown by the chain line in FIG.
When the opening 4a of the warm air intake pipe 4 is fully closed, the on-off valve 5
A raised part 5a is provided on the lower surface of the on-off valve 5 to directly open and close the opening 4a so that the opening 4a is maintained at an angle with respect to the air flow A in the air intake pipe 3. , is used as a pressure receiving surface 5b that receives the air flow A of the air intake pipe 3 and increases the closing force of the on-off valve 5.
なお、図中１２は暖気取入口４から導入された暖気が湧
流となってバイメタル６を必要以上に加熱するのを防止
するため設けたバイメタルカバー１３はバイメタル６の
一端を支持するバイメタル支持金具である。In the figure, reference numeral 12 denotes a bimetal support fitting that supports one end of the bimetal 6. A bimetal cover 13 is provided to prevent the warm air introduced from the hot air intake 4 from becoming a spring flow and heating the bimetal 6 more than necessary. be.
したがって、上記実施例に卦いては、開閉弁５が暖気取
入管４の開口部４ａを閉じているときにエンジンの高負
荷運転によって空気取入管３内に強い負圧が生じても、
開閉弁５の上面、すなわち受圧面５ｂが空気取入管３内
の強い空気流Ａを受けて閉じ力を増加させているため、
確実に開閉弁５の全閉状態が保たれるものである。Therefore, in the above embodiment, even if a strong negative pressure is generated in the air intake pipe 3 due to high load operation of the engine while the opening/closing valve 5 closes the opening 4a of the warm air intake pipe 4,
Since the upper surface of the on-off valve 5, that is, the pressure receiving surface 5b, receives the strong air flow A within the air intake pipe 3, increasing the closing force,
This ensures that the on-off valve 5 is kept fully closed.
以上説明したように、本考案のバイメタル式温調エアク
リーナによれば、開閉弁が暖気取入管を閉じているとき
、空気取入管に生じる負圧によって該開閉弁が開方向に
偏位するのを確実に防止するものであり、よってエンジ
ンの高負荷運転時にあ・ける吸気温度を必要以上に高く
することがなく、吸入空気の充填効率の低下を確実に防
止できるものである。As explained above, according to the bimetallic temperature-controlled air cleaner of the present invention, when the on-off valve closes the hot air intake pipe, the on-off valve is prevented from being deflected in the opening direction due to the negative pressure generated in the air intake pipe. Therefore, during high-load engine operation, the intake air temperature does not become higher than necessary, and a decrease in intake air filling efficiency can be reliably prevented.
第１図は本考案の実施例を示すエアクリーナの断面図、
第２図は第１図のバイメタル付近の構造を示す一部透視
図である。
３・・・空気取入管、４・・・暖気取入管、４ａ・・・
開口部、５・・・開閉弁、５ｂ・・・受圧面、６・・・
バイメタル。FIG. 1 is a sectional view of an air cleaner showing an embodiment of the present invention;
FIG. 2 is a partially perspective view showing the structure near the bimetal in FIG. 1. 3... Air intake pipe, 4... Warm air intake pipe, 4a...
Opening portion, 5... Opening/closing valve, 5b... Pressure receiving surface, 6...
bimetal.
Claims (1)
を導入する空気取入管を設けるとともに、該空気取入管
の途中に開口させた暖気取入管の開口部を吸気温度の変
化に応じて作動するバイメタルに連結した開閉弁により
開閉するようにしたエンジンのエアクリーナにおいて、
上記開閉弁が暖気取入管の開口部を閉じたとき、上記空
気取入管に生じる空気流を受けて開閉弁の閉じ力を増加
させる受圧面を開閉弁のほぼ全面に形成したことを特徴
とするエンジンのエアクリーナ。In addition to providing an air intake pipe that introduces air approximately linearly into the case containing the cleaner element, the opening of the hot air intake pipe opened midway through the air intake pipe is made of bimetallic material that operates according to changes in intake air temperature. In an engine air cleaner that is opened and closed by a connected on-off valve,
When the opening/closing valve closes the opening of the warm air intake pipe, a pressure receiving surface is formed on almost the entire surface of the opening/closing valve, which increases the closing force of the opening/closing valve by receiving the air flow generated in the air intake pipe. engine air cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979133885U JPS581643Y2 (en) | 1979-09-26 | 1979-09-26 | engine air cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979133885U JPS581643Y2 (en) | 1979-09-26 | 1979-09-26 | engine air cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5650771U JPS5650771U (en) | 1981-05-06 |
| JPS581643Y2 true JPS581643Y2 (en) | 1983-01-12 |
Family
ID=29365464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979133885U Expired JPS581643Y2 (en) | 1979-09-26 | 1979-09-26 | engine air cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581643Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911147U (en) * | 1982-07-12 | 1984-01-24 | マツダ株式会社 | Engine intake air temperature control device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842222A (en) * | 1971-10-05 | 1973-06-20 |
-
1979
- 1979-09-26 JP JP1979133885U patent/JPS581643Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842222A (en) * | 1971-10-05 | 1973-06-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5650771U (en) | 1981-05-06 |
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