JPH01253518A - Recovering device for blow-by gas of engine - Google Patents
Recovering device for blow-by gas of engineInfo
- Publication number
- JPH01253518A JPH01253518A JP8351988A JP8351988A JPH01253518A JP H01253518 A JPH01253518 A JP H01253518A JP 8351988 A JP8351988 A JP 8351988A JP 8351988 A JP8351988 A JP 8351988A JP H01253518 A JPH01253518 A JP H01253518A
- Authority
- JP
- Japan
- Prior art keywords
- blow
- gas
- bolt
- passage
- cover
- 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
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241001634822 Biston Species 0.000 description 1
- FFGPTBGBLSHEPO-UHFFFAOYSA-N carbamazepine Chemical compound C1=CC2=CC=CC=C2N(C(=O)N)C2=CC=CC=C21 FFGPTBGBLSHEPO-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- 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
- F02F7/006—Camshaft or pushrod housings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、エンジンのブローバイガス還元装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a blow-by gas reduction device for an engine.
従来の技術、および発明が解決しようとする課題
シリンダヘッドを覆うヘッドカバーをボルトに締付けて
取付け、このヘッドカバーにプ・ノーザ孔を設ける技術
（実開昭５８−１９５０１３号公報）があるが、クラン
ク室のブローバイガスを、シリンダヘッドのヘッドカバ
ーのブローバイガス通路を経て還元させる形態では、こ
のヘッドカバーのブローバイガス通路での液化が著して
、この液化された油の涼下が速かに行わなければならな
い。PRIOR TECHNOLOGY AND PROBLEMS TO BE SOLVED BY THE INVENTION There is a technique (Japanese Utility Model Application No. 58-195013) in which a head cover that covers the cylinder head is attached by tightening bolts, and a hole is provided in the head cover. In the case where the blow-by gas is reduced through the blow-by gas passage in the head cover of the cylinder head, the liquefaction in the blow-by gas passage of the head cover is significant, and the liquefied oil must be cooled down quickly. .
課題を解決するための１段
この発明は、シリンダヘッド（１）をカバー室（２）で
ｍうヘッドカバー（３）の上側部に、クランク室（４）
から送られるブローバイガスを通すブローバイガス通路
（５）と、このブローバイガス通路（５）の−Ｌ下に開
口して下側のカバー室（２）へ連通ずるボルト嵌合孔（
６）（７）とを設け、このボルト嵌合孔（６）（７）に
げってボルト（８）を嵌合させて該ヘッドカバ−（３）
をンリングへ一２ド（１）に取付けてなるエンジンのブ
ローバイガス還元装置の構成とする。One stage for solving the problem This invention has a crank chamber (4) on the upper side of a head cover (3) that covers the cylinder head (1) in a cover chamber (2).
A blow-by gas passage (5) for passing the blow-by gas sent from the blow-by gas passage (5), and a bolt fitting hole (2) that opens below -L of the blow-by gas passage (5) and communicates with the lower cover chamber (2).
6) and (7) are provided, and the bolts (8) are fitted through the bolt fitting holes (6) and (7) to close the head cover (3).
The blow-by gas reduction device for the engine is constructed by attaching the gas to the engine ring (1).
発明の作用、および効果
エンジンの駆動によってクランク室（４）内のブローバ
イガスが、シリンダヘッド（１）を覆うヘッドカバー（
３）内のプローバイガスｄ路（５）内に噴出されて還元
される間に、このブローバイガス通路（５）内に露出せ
るボルト（８）に接して液化される。この液化される油
滴が、ボルト（８）に沿ってボルト嵌合孔（７）を通り
、下側のカバー室（２）内に流下される。Functions and Effects of the Invention When the engine is driven, blow-by gas in the crank chamber (4) spreads over the head cover (1), which covers the cylinder head (1).
While the blow-by gas is injected into the blow-by gas path (5) in the blow-by gas path (5) and reduced, it is liquefied in contact with the bolt (8) exposed in the blow-by gas path (5). The liquefied oil droplets pass through the bolt fitting hole (7) along the bolt (8) and flow down into the lower cover chamber (2).
このようにブローバイガス通路（５）内を流れるブロー
バイガスが、ボルト（８）に接することによって、液化
してこのボルト（８）に付着する油滴がそのまま流下し
て、このボルト（８）の嵌合されているボルト嵌合孔（
７）から下側のカバー室（２）内に流下されるため、ブ
ローバイガスの油の分離効果を高めることができ、しか
も、ヘッドカバ−（３）を取付けるためのボルト（８）
、及びこのボルト（８）を嵌合するボルト嵌合孔（７）
を用いるために構成が簡単である。When the blow-by gas flowing in the blow-by gas passage (5) comes into contact with the bolt (8), the oil droplets that are liquefied and adhere to the bolt (8) flow down, and the oil droplets that adhere to the bolt (8) flow down. The fitted bolt fitting hole (
7) into the lower cover chamber (2), the blow-by gas oil separation effect can be enhanced, and the bolts (8) for attaching the head cover (3)
, and a bolt fitting hole (7) into which this bolt (8) is fitted.
The configuration is simple because it uses
実施例
なお、図例第１図〜第４図において、（９）はエンジン
ボディで、下部にクランク軸（１０）を軸装するクラン
ク室（４）を設け、上部にビストノ（１１）を上下に往
復移動自在にして嵌合するシリンダ（１２）を設けてい
る。 （１３）はピストンロッド、（１４）はクラン
ク軸（ｌＯ）に設けたバランスウェイトである。Embodiment In FIGS. 1 to 4, (9) is an engine body, with a crank chamber (4) in which the crankshaft (10) is mounted in the lower part, and a biston (11) in the upper part. A cylinder (12) is provided in which the cylinder (12) is fitted so as to be reciprocally movable. (13) is a piston rod, and (14) is a balance weight provided on the crankshaft (lO).
エンジンボディ（９）の上端面には、燃料吸入路（１５
）や排気路（１６）等を形成したシリンダへラド（１）
を重合し、さらにこのシリンダヘッド（１）の−ｈ （
［１にヘッドカバー（２）を重合してスタッドポル）
（８）、及びこのボルト（８）の上端に螺合するナラ）
（１７）等で締付けて一体的に設ける。これらエンジン
ボディ（９）とシリンダヘッド（１）とには、上下方向
のガス通路（Ｉ８）（１９）を形成し、このガス通路（
Ｉ８）のｆ端をクランク室（４）に連通させている。A fuel intake passage (15) is provided on the upper end surface of the engine body (9).
), exhaust path (16), etc. to the cylinder (1)
is polymerized, and -h (
[Polymerize the head cover (2) to 1 and attach the stud pole)
(8), and the nut screwed into the upper end of this bolt (8))
(17) etc. and install it integrally. Vertical gas passages (I8) (19) are formed in these engine body (9) and cylinder head (1), and these gas passages (I8) (19) are formed in the vertical direction.
The f end of I8) is communicated with the crank chamber (4).
シリンダヘッド（１）には、弁軸やアーム等の機構を覆
うカバー室（２）、及びこのカバー室（２）の−側から
上側に亘ってブローバイガス通路（５）を形成するヘッ
ドカバー（３）を前記ボルト（８）で取付けている。ブ
ローバイガス通路（５）は、上記ガス通路（１８）
（ｌ１１）の直−Ｅ部に対向して上下方向に形成せる縦
路（２０）と、この縦路（２０）の上部からカバー室（
２）上方を横方向へ連通形成せる横路（２１）とからな
り、この横路（２１）の終端はパイプ（２２）で吸入路
（１５）に連通させている。縦路（２０）の下部は、カ
バー室（２）の−側に連通し、内部には上下方向に沿う
フィン（２３）を形成している。The cylinder head (1) includes a cover chamber (2) that covers mechanisms such as the valve stem and arm, and a head cover (3) that forms a blow-by gas passage (5) from the negative side to the upper side of the cover chamber (2). ) is attached with the bolt (8). The blow-by gas passage (5) is the gas passage (18)
A vertical passage (20) formed vertically facing the straight-E portion of (l11), and a cover chamber (
2) It consists of a cross passage (21) that communicates with the upper part in the horizontal direction, and the end of this cross passage (21) is connected to the suction passage (15) by a pipe (22). The lower part of the vertical passageway (20) communicates with the negative side of the cover chamber (2), and fins (23) extending in the vertical direction are formed inside.
シリンダヘッド（１）の上側にはスタッドボルト（８）
を突設し、このボルト（８）に嵌合するボルト嵌合孔（
６）（７）は、該プローへイガス通路（５）の横路（２
１） 、及びカバー室（２）の中央部を上下方向に慣通
するように設け、横路（２１）の底部に位置するボルト
嵌合孔（７）はボルト（８）の径よりも大径にして付着
せる油滴が流下しうる程度に形成している。す・ン）（
１？）は袋ナツトとしてヘッドカバ−（３）の上側から
ガスケット（２０等を介して螺合し、締付固定する。There is a stud bolt (8) on the upper side of the cylinder head (1).
is provided protrudingly, and a bolt fitting hole (
6) (7) is the side passage (2) of the gas passage (5) to the probe.
1) and the center part of the cover chamber (2) are provided so as to pass vertically, and the bolt fitting hole (7) located at the bottom of the side passage (21) has a diameter larger than that of the bolt (8). It is formed to such an extent that the oil droplets that are attached to it can flow down. S・n)(
1? ) is screwed into the head cover (3) as a cap nut from above through a gasket (20, etc.) and is tightened and fixed.
ブローバイガスは、ガス通路（１３）からブローバイガ
ス通路（５）の縦路（２０）に噴出されると、この縦路
（２０）及びカバー室（２）内を噴回されて、この縦路
（２０）から横路（２１）に至りパイプ（２２）を経て
吸入路（１５）へ還元される。この横路（２１）を通過
するときブローバイガスがボルト（８）の局面に接して
付着液化される。この液化された油滴はこのボルト（８
）に沿って横路（２１） Ｉｃ部の嵌合孔（７）を経て
カバー室（２）、流下する。When the blow-by gas is ejected from the gas passage (13) into the vertical passage (20) of the blow-by gas passage (5), it is blown around in this vertical passage (20) and the cover chamber (2), and then flows through this vertical passage. (20) leads to a side passage (21) and is returned to the suction passage (15) via a pipe (22). When passing through this lateral passage (21), the blow-by gas comes into contact with the curved surface of the bolt (8) and is liquefied. This liquefied oil droplet is attached to this bolt (8
), the cover chamber (2) flows down through the fitting hole (7) of the Ic section.
第５図において、上側と異なる点は、ブローバイガス通
路（５）の横路（２１）の形態を、ボルト（８）の嵌合
される部分に沿うように縦長にしてクランク状に形成し
、ボルト（８）の周面に接するブローバイガス通路の行
程を長く形成したものである。ブローバイガスのボルト
（８）周面に対する接触面積が大きくなり、油の分離効
果を高める。In Fig. 5, the difference from the upper side is that the horizontal passage (21) of the blow-by gas passage (5) is formed into a crank shape and is elongated vertically along the part where the bolt (8) is fitted. (8) The stroke of the blow-by gas passage in contact with the peripheral surface is made longer. The contact area of the blow-by gas with the circumferential surface of the bolt (8) increases, increasing the oil separation effect.
第６図は、横路（２１）をボルト（８）位置で上方のナ
ラ）（１７）下のジヨイントメタル（２５）部にまで延
長して形成し、このジヨイントメタル（２５）にｔ記パ
イプ（２２） ｔ一連通ずる。Figure 6 shows a horizontal passage (21) extending to the joint metal (25) below the upper oak (17) at the bolt (8) position, and a t mark on this joint metal (25). Pipe (22) t runs in series.
第７図〜第９図は、横路（２１）の形１ムを左右のボル
ト（８）（８）間に埋るように拡張して形成したもので
、この横路（２１）内にはヘッドカバー（３）と一体成
形のフィン（２６）を設けている。Figures 7 to 9 show the shape of the cross passage (21) expanded to fit between the left and right bolts (8) (8). (3) and integrally molded fins (26) are provided.
（２７）は注油キャップで、ヘッドカバー（３）中央部
の注油＋：＋（２８）に設けている。(27) is a lubrication cap, which is provided at the lubrication +:+ (28) in the center of the head cover (3).
図はこの発明の実施例を示すもので、第１図は正断面図
、第２図はその一部の拡大断面図、第３図はその−・部
の平断面図、第４図はその側断面図、第５図は一部別実
施例の正断面図、第６図は別実施例のＩＥ正断面図第７
図は別実施例の平面図、第８図はその側断面図、第９図
はその正断面図である。
図中、符号（１）はシリンダヘッド、（２）はカバー室
、（３）はヘッドカバー、（４）はクランク室、（５）
はブローバイガス通路、（６）（７）はボルト嵌合札、
（８）はボルトを示す。The figures show an embodiment of the present invention, and Fig. 1 is a front sectional view, Fig. 2 is an enlarged sectional view of a part thereof, Fig. 3 is a plan sectional view of the - section, and Fig. 4 is its A side sectional view, FIG. 5 is a front sectional view of a partially different embodiment, and FIG. 6 is an IE front sectional view of another embodiment.
The figure is a plan view of another embodiment, FIG. 8 is a side sectional view thereof, and FIG. 9 is a front sectional view thereof. In the figure, (1) is the cylinder head, (2) is the cover chamber, (3) is the head cover, (4) is the crank chamber, (5)
is the blow-by gas passage, (6) and (7) are the bolt fitting tags,
(8) indicates a bolt.
Claims (1)
バー（３）の上側部に、クランク室（４）から送られる
ブローバイガスを通すブローバイガス通路（５）と、こ
のブローバイガス通路（５）の上下に開口して下側のカ
バー室（２）へ連通するボルト嵌合孔（６）（７）とを
設け、このボルト嵌合孔（６）（７）に亘ってボルト（
８）を嵌合させて該ヘッドカバー（３）をシリンダヘッ
ド（１）に取付けてなるエンジンのブローバイガス還元
装置。A blow-by gas passage (5) for passing blow-by gas sent from the crank chamber (4) is provided on the upper side of the head cover (3) that covers the cylinder head (1) with a cover chamber (2), and a blow-by gas passage (5) for passing the blow-by gas sent from the crank chamber (4). Bolt fitting holes (6) and (7) are provided which open upwardly and downwardly and communicate with the lower cover chamber (2), and the bolts (
8) and the head cover (3) is attached to the cylinder head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8351988A JPH01253518A (en) | 1988-04-04 | 1988-04-04 | Recovering device for blow-by gas of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8351988A JPH01253518A (en) | 1988-04-04 | 1988-04-04 | Recovering device for blow-by gas of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01253518A true JPH01253518A (en) | 1989-10-09 |
Family
ID=13804732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8351988A Pending JPH01253518A (en) | 1988-04-04 | 1988-04-04 | Recovering device for blow-by gas of engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01253518A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0881377A3 (en) * | 1997-05-31 | 1999-06-09 | Robert Bosch Gmbh | Device for fitting an internal combustion engine with supplementary parts |
| FR2991377A1 (en) * | 2012-06-04 | 2013-12-06 | Peugeot Citroen Automobiles Sa | Thermal engine for car, has engine support insert fixed to one end of cylinder casing, and gas passage connecting lower volume of casing to upper volume of cylinder head, where gas passage extends partly in engine support insert |
| JP2019027323A (en) * | 2017-07-27 | 2019-02-21 | ダイハツ工業株式会社 | Internal combustion engine |
-
1988
- 1988-04-04 JP JP8351988A patent/JPH01253518A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0881377A3 (en) * | 1997-05-31 | 1999-06-09 | Robert Bosch Gmbh | Device for fitting an internal combustion engine with supplementary parts |
| FR2991377A1 (en) * | 2012-06-04 | 2013-12-06 | Peugeot Citroen Automobiles Sa | Thermal engine for car, has engine support insert fixed to one end of cylinder casing, and gas passage connecting lower volume of casing to upper volume of cylinder head, where gas passage extends partly in engine support insert |
| JP2019027323A (en) * | 2017-07-27 | 2019-02-21 | ダイハツ工業株式会社 | Internal combustion engine |
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