JPS5870015A - Apparatus for reducing blow-by gas - Google Patents
Apparatus for reducing blow-by gasInfo
- Publication number
- JPS5870015A JPS5870015A JP16991581A JP16991581A JPS5870015A JP S5870015 A JPS5870015 A JP S5870015A JP 16991581 A JP16991581 A JP 16991581A JP 16991581 A JP16991581 A JP 16991581A JP S5870015 A JPS5870015 A JP S5870015A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- gas
- passage
- blow
- intake
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は特にエンジン高負荷時におけるメイン系通路に
よる還元能力の向上を図ったブロー／（イガス還元装置
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a blow/gas reducing device which aims to improve the reducing ability of the main system passage especially when the engine is under high load.
クランク室に流入する高ＨＣ含有ブローノくイガス還元
の目的でクランクブースをエンジン吸気系に接続して、
再燃焼を図るプローノ（イガス還元装置（ｐｃｖ装ｆｆ
１）はよく知られている。この鳴のにおいて、クランク
ブースを吸気系の内方部分にメイン系通路を介して、ま
た吸気系の１清浄気の流入を許容し得る外方部分、例え
ばスロットルボデーにバイパス系通路を介して夫々接続
する形式が多用されていることもよく知られている。The crank booth is connected to the engine intake system for the purpose of reducing high HC-containing gas flowing into the crank chamber.
Prono (Igas reduction device (PCV system FF) for re-combustion
1) is well known. In this case, the crank booth is connected to the inner part of the intake system via the main system passage, and to the outer part of the intake system where clean air can enter, such as the throttle body, via the bypass system passage. It is also well known that many types of connections are used.
ところで、この種の従来の装置においては、メイン系通
路を各気筒のインテークボートの集合部、例えばサージ
タンクに接続するのが一般的である。By the way, in this type of conventional device, it is common to connect the main system passage to a gathering part of the intake boats of each cylinder, for example, a surge tank.
しかるに、エンジン全負荷時のように、吸気管負圧の低
い領竣において、メイン系を介しての還元能力が不足と
なった場合、バイパス系を介して過多量のブローバイガ
スが流通する状態にな夛、バイパス系通路に通じている
エアクリーナエレメントやスロットルバルブがブローバ
イガスに含有されるオイルによって汚損されたシ、ＥＧ
Ｒ通路の目詰シを生じたルすることがある。However, when the intake pipe negative pressure is low, such as when the engine is fully loaded, if the reduction capacity through the main system is insufficient, an excessive amount of blow-by gas will flow through the bypass system. In addition, if the air cleaner element or throttle valve that communicates with the bypass system passage is contaminated by oil contained in the blow-by gas, the EG
This may cause clogging of the R passage.
本発明はこのような事情に着目してなされたもので、エ
ンジン高負荷時においてもバイパス系全弁しての過多量
のブローバイガスの流通を抑制し、エアクリーナエレメ
ントやスロットルパルブノ汚損十ＥＧＲ通路の目詰りを
効果的に防止できるブローバイガス還元装置Ｉｔを、簡
単な構成に基づき実用上好適し得るものとして提供する
ことを目的とする。The present invention has been made in view of these circumstances, and it suppresses the flow of excessive amount of blow-by gas by using all valves in the bypass system even when the engine is under high load. It is an object of the present invention to provide a blow-by gas reducing device It which can effectively prevent clogging of the gas and which is practically suitable based on a simple configuration.
この目的を達成するため、本発明はプローノくイガス流
通用のメイン系通路を、吸気系のうち、負圧が直接的に
作用する個所、即ちインテークボートに接続し、このよ
うな接続構成を通じて、メイン系を介しての還元能力を
高め、低負圧、ｓ域においても十分な還元用流量を確保
するようにしたものである。In order to achieve this object, the present invention connects the main system passage for gas flow to a point in the intake system where negative pressure directly acts, that is, the intake boat, and through such a connection configuration, The reduction ability through the main system is increased, and a sufficient reduction flow rate is ensured even at low negative pressure and in the s region.
以下、本発明の一実施例を図ｌｌ１ｔ−参照して説明す
る。Hereinafter, one embodiment of the present invention will be described with reference to FIG.
本実施例は４気筒エンジンについてのものである。This example concerns a four-cylinder engine.
図中１はエンジン、２はスロットルボデー、３はサージ
タンク、４はインテークボート、５はスロットルバルブ
金示す。エンジン１のクランククース部から導出し九プ
ローバイガス還元用のメイン系通路６奢各インテークボ
ート４のエンジン吸気口近接部に接続している。７は各
接続開口部を示す。なお、バイパス系通路８はスロット
ルポデー２のスロットルバルブ５の上流側に接続してい
る。また、図中、矢印Ａは吸気方向を示す。In the figure, 1 is an engine, 2 is a throttle body, 3 is a surge tank, 4 is an intake boat, and 5 is a throttle valve. A main system passage 6 for returning the nine-proby gas is led out from the crank coos portion of the engine 1 and connected to a portion near the engine intake port of each intake boat 4. 7 indicates each connection opening. Note that the bypass system passage 8 is connected to the upstream side of the throttle valve 5 of the throttle body 2. Further, in the figure, arrow A indicates the intake direction.
このような構成によれば、メイン系通路６【エンジン吸
気用負圧が最も大きく作用する吸気系のうちのインテー
クボート４部に接続したので、例えばエンジン全負荷時
等において吸気系の負圧が低下し九場合においても、従
来のサージタンク３部に接続し九ようなものに比べて、
ブローバイガスの還元用流量を十分に確保することがで
きる。According to this configuration, since the main system passage 6 is connected to the intake boat 4 section of the intake system where the engine intake negative pressure acts the most, the negative pressure in the intake system is reduced, for example, when the engine is fully loaded. Even in the case of low power, compared to a conventional surge tank connected to 3 parts,
A sufficient flow rate of blow-by gas for reduction can be ensured.
従って、メイン系の極端な能力低下を来たすことがなく
なるため、バイパス系流量が過多状態となることを防止
でき、エアクリーナエレメント、スロットルバルブの汚
損やＥＧＲ通路の目詰シ尋を有効に防止できる。Therefore, an extreme decrease in the performance of the main system will not occur, so that the bypass system flow rate can be prevented from becoming excessive, and it is possible to effectively prevent the air cleaner element and the throttle valve from becoming dirty and the EGR passage from becoming clogged.
そして、このような作用が単にメイン系通路６の吸気系
への接続構成の改良によって実現できるものであるから
、部品構成の複雑化を招くおそれ４ｈｎ＜、比較的簡単
な構成で賓易に実施でき、実用上極めて好適なものとな
る。Since such an effect can be achieved simply by improving the connection configuration of the main system passage 6 to the intake system, there is a risk that the component configuration will become complicated. This makes it extremely suitable for practical use.
なお、前記実施例を示す図面では、全気筒にメイン系を
接続したタイプのものを示したが、本発明はそのような
ものに限らず、個別接続構成にしてもよく、また、必要
な一部の気筒のみにメイン系を接続する構成にしてもよ
いことは勿論である。Although the drawings showing the above-mentioned embodiments show a type in which the main system is connected to all cylinders, the present invention is not limited to such a structure, and may also be configured to connect each cylinder individually. Of course, it is also possible to connect the main system to only the cylinders in the cylinder.
本発明は以上の実施例で詳述したように、ブローバイガ
ス還元に係る構造上の問題を実用的見地から解消し、装
置保持等の面で好適な好果を発揮できるものである。As described in detail in the above embodiments, the present invention solves the structural problems related to blow-by gas reduction from a practical standpoint, and can exhibit favorable effects in terms of equipment maintenance and the like.
図は本発明の一実施例を示す概略構成図である。
１＠＠・・エンジン、 ４・−・・インテークボート
。
６・・・・メイン系通路、８・・・・バイパス系通路。
代理人 鵜沼辰之
（ほか２名）The figure is a schematic configuration diagram showing one embodiment of the present invention. 1@@...Engine, 4...Intake boat. 6... Main system passage, 8... Bypass system passage. Agent Tatsuyuki Unuma (and 2 others)
Claims (1)
所にメイン系通路及びノ（イノ（ス系通絡を介して接続
したブローノくイガス還元装置において、メイン系通路
を吸気系のインテークボート部に接続したことを特徴と
するブローノ（イガス還元装置。α) In a gas reduction system where the crank booth is connected to different points of the engine intake system with different negative pressures through the main system passage and the exhaust system connection, the main system passage is connected to the intake boat part of the intake system. Bruno (Igas reduction device) characterized by being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16991581A JPS5870015A (en) | 1981-10-23 | 1981-10-23 | Apparatus for reducing blow-by gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16991581A JPS5870015A (en) | 1981-10-23 | 1981-10-23 | Apparatus for reducing blow-by gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5870015A true JPS5870015A (en) | 1983-04-26 |
Family
ID=15895311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16991581A Pending JPS5870015A (en) | 1981-10-23 | 1981-10-23 | Apparatus for reducing blow-by gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5870015A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4651255A (en) * | 1984-07-25 | 1987-03-17 | Hitachi, Ltd. | Connecting system for gas-insulated switchgear apparatus |
| EP1167739A3 (en) * | 2000-06-30 | 2002-12-11 | Honda Giken Kogyo Kabushiki Kaisha | Device for feeding blow-by gas and recirculated exhaust gas to a suction passage |
| WO2016039143A1 (en) * | 2014-09-08 | 2016-03-17 | アイシン精機株式会社 | Internal combustion engine |
| JP2016056707A (en) * | 2014-09-08 | 2016-04-21 | アイシン精機株式会社 | Internal combustion engine |
-
1981
- 1981-10-23 JP JP16991581A patent/JPS5870015A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4651255A (en) * | 1984-07-25 | 1987-03-17 | Hitachi, Ltd. | Connecting system for gas-insulated switchgear apparatus |
| EP1167739A3 (en) * | 2000-06-30 | 2002-12-11 | Honda Giken Kogyo Kabushiki Kaisha | Device for feeding blow-by gas and recirculated exhaust gas to a suction passage |
| US6553978B2 (en) | 2000-06-30 | 2003-04-29 | Honda Giken Kogyo Kabushiki Kaisha | Air pollution preventing device in internal combustion engine |
| WO2016039143A1 (en) * | 2014-09-08 | 2016-03-17 | アイシン精機株式会社 | Internal combustion engine |
| JP2016056707A (en) * | 2014-09-08 | 2016-04-21 | アイシン精機株式会社 | Internal combustion engine |
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