JPS6318744Y2 - - Google Patents
Info
- Publication number
- JPS6318744Y2 JPS6318744Y2 JP1983048247U JP4824783U JPS6318744Y2 JP S6318744 Y2 JPS6318744 Y2 JP S6318744Y2 JP 1983048247 U JP1983048247 U JP 1983048247U JP 4824783 U JP4824783 U JP 4824783U JP S6318744 Y2 JPS6318744 Y2 JP S6318744Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- drain opening
- bottom plate
- blow
- oil separator
- 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
- 238000000926 separation method Methods 0.000 claims description 17
- 238000004049 embossing Methods 0.000 claims description 8
- 239000011435 rock Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
(産業上の利用分野)
本考案はエンジンのクランクケース内に発生す
るブローバイガスを気液分離するロツカカバ内に
設けたオイルセパレータに関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an oil separator provided in a rock cover for separating blow-by gas generated in the crankcase of an engine into gas and liquid.
(従来の技術)
自動車等のエンジンのクランクケース内に発生
するブローバイガスには、霧状油滴やカーボン等
が含まれているので、大気汚染防止の点からロツ
カカバ内にオイルセパレータを配設し、該オイル
セパレータの油分離室で霧状油滴を凝集してその
油分をエンジンへ戻し、油滴を含まないブローバ
イガスをインテークマニホールドに還流して再燃
焼している。第1図に示す従来のオイルセパレー
タでは、クランクケース(図示せず)から導入さ
れたブローバイガスはロツカカバ1の内部に配設
されたオイルセパレータ2の両端に設けた流入開
口3から分離室4に入り、流出部6を経てインテ
ークマニホールド(図示せず)へ吸入されて再燃
焼される。ブローバイガス中の油分は分離室4で
分離され、分離室4の下底に穿設したドレーン開
口5から、流入しようとするブローバイガスの流
れに逆らつて自重で自然落下して図示しないエン
ジンに戻される。(Prior art) Blow-by gas generated in the crankcase of an automobile engine contains atomized oil droplets, carbon, etc., so an oil separator is installed inside the rock cover to prevent air pollution. The atomized oil droplets are condensed in the oil separation chamber of the oil separator, the oil content is returned to the engine, and the blow-by gas that does not contain oil droplets is returned to the intake manifold and re-burned. In the conventional oil separator shown in FIG. 1, blow-by gas introduced from the crankcase (not shown) flows into the separation chamber 4 through inflow openings 3 provided at both ends of the oil separator 2 disposed inside the rock cover 1. The fuel enters the air, is sucked into the intake manifold (not shown) through the outlet 6, and is re-combusted. The oil content in the blow-by gas is separated in the separation chamber 4, and falls naturally under its own weight against the flow of the blow-by gas into the engine (not shown) through the drain opening 5 formed at the bottom of the separation chamber 4. be returned.
(考案が解決しようとする問題点)
しかしながらオイルセパレータ2の下底に穿設
したドレーン開口5の開口面積が大き過ぎると、
流入開口3とドレーン開口5の各開口面積が近似
し、ドレーン開口5から多量のブローバイガスが
オイルセパレータ2内に流れ込み、分離室4の一
部を通過して流出部6からインテークマニホール
ドへの吸引されてしまい油分離効率が低下する。(Problem to be solved by the invention) However, if the opening area of the drain opening 5 formed at the bottom of the oil separator 2 is too large,
The opening areas of the inflow opening 3 and the drain opening 5 are similar, and a large amount of blow-by gas flows into the oil separator 2 from the drain opening 5, passes through a part of the separation chamber 4, and is sucked into the intake manifold from the outflow part 6. oil separation efficiency decreases.
また前記ドレーン開口面積が小さ過ぎると分離
室4で凝集分離されドレーン開口5に溜つた油分
は、ドレーン開口5を通過するブローバイガスの
流速が上がり自重によつて落下することができ
ず、ブローバイガスの流れの中に再飛散するとい
う欠点がある。 Furthermore, if the drain opening area is too small, the oil that has been coagulated and separated in the separation chamber 4 and accumulated in the drain opening 5 will not be able to fall due to its own weight as the flow rate of the blow-by gas passing through the drain opening 5 will increase. It has the disadvantage that it can be re-dispersed in the current.
(問題点を解決するための手段)
本考案はロツカカバ内に流入出口とドレーン開
口を有し、油分離室が形成されたオイルセパレー
タを配設し、該オイルセパレータの底板のドレー
ン開口に、外方に複数のエンボスが突設され中央
部にドレーン開口より小径の筒状管が固設された
平板の筒状管を貫挿するとともに、エンボスの頂
部を底板に固着させた。(Means for Solving the Problems) The present invention provides an oil separator having an inflow outlet and a drain opening in a rock cover, and an oil separation chamber formed therein, and an external A flat cylindrical tube with a plurality of embossments protruding from one side and a cylindrical tube with a smaller diameter than the drain opening fixed in the center was inserted, and the tops of the embossments were fixed to the bottom plate.
(作用)
ブローバイガスは流入口から油分離室に入り含
んでいる油分を分離した後流出口からインテーク
マニホールドに流れていく。分離された油はオイ
ルセパレータの底板と平板との間に溜まりドレー
ン開口と筒状管の隙間からエンジンへと滴下す
る。またブローバイガスの一部は筒状管内を通過
して油分離室へ流れる。このときドレーン開口と
筒状管の隙間の油滴は、抵抗の少ない筒状管にブ
ローバイガスが流れ、ブローバイガスの影響を受
けず、オイルセパレータ内に戻されることなく滴
下する。(Operation) Blow-by gas enters the oil separation chamber from the inlet, separates the oil it contains, and then flows from the outlet to the intake manifold. The separated oil accumulates between the bottom plate and the flat plate of the oil separator and drips into the engine through the gap between the drain opening and the cylindrical pipe. Also, a part of the blow-by gas passes through the cylindrical pipe and flows into the oil separation chamber. At this time, the oil droplets in the gap between the drain opening and the cylindrical tube are not affected by the blow-by gas because the blow-by gas flows through the cylindrical tube with less resistance, and drop without being returned into the oil separator.
(実施例)
ロツカカバ内に該ロツカカバを油分離側とエン
ジン側とに区画する底板が水平方向に固設され、
油分離側には油分離室とインテークマニホールド
に連通する流出口が設けられ、さらに底板には端
部に流入口と複数のドレーン開口が穿設されたオ
イルセパレータが形成される。そしてドレーン開
口には第2図に示すドレーン部10aが形成され
る。(Example) A bottom plate is fixed in the horizontal direction inside the rock cover, dividing the rock cover into an oil separation side and an engine side,
The oil separation side is provided with an outlet that communicates with the oil separation chamber and the intake manifold, and the bottom plate is further formed with an oil separator having an inlet and a plurality of drain openings at its end. A drain portion 10a shown in FIG. 2 is formed in the drain opening.
ドレーン部10aはオイルセパレータの底板7
に穿設された開口径d1を有するドレーン開口5に
筒状管8を有する平板9が配設されて成る。平板
9の周縁側には複数のエンボス11が突設され、
平板9の中央部に前記ドレーン開口径d1より小径
の外径dを有しエンボス11より高くかつブロー
バイガス流入路Qを形成する筒状管8が固着され
ている。平板9は底板7の下側からドレーン開口
5に筒状管8が貫挿されるとともに底板7とエン
ボス11の頂点とが固着され、底板7と平板9と
の間には油の流出路Rとなるエンボス11の高さ
分の小間隔hが形成され、又ドレーン開口5と筒
状管8の外周との間に油滴の通路となる隙間が形
成される。 The drain part 10a is the bottom plate 7 of the oil separator.
A flat plate 9 having a cylindrical tube 8 is disposed in a drain opening 5 having an opening diameter d1 . A plurality of embossments 11 are protruded from the peripheral edge of the flat plate 9,
A cylindrical tube 8 having an outer diameter d smaller than the drain opening diameter d 1 and higher than the embossing 11 and forming a blow-by gas inflow path Q is fixed to the center of the flat plate 9. In the flat plate 9, the cylindrical pipe 8 is inserted into the drain opening 5 from the bottom side of the bottom plate 7, and the bottom plate 7 and the top of the embossing 11 are fixed, and an oil outflow path R is formed between the bottom plate 7 and the flat plate 9. A small gap h corresponding to the height of the embossing 11 is formed, and a gap is formed between the drain opening 5 and the outer periphery of the cylindrical tube 8, which serves as a passage for oil droplets.
底板7の上方の油分離室は底板7の下方のエン
ジン側より圧力が低い状態となり、ブローバイガ
スは筒状管8により形成される流入路Qおよび流
入口からオイルセパレータ内に流入する。底板7
と平板9で形成される流通路Rおよびドレーン開
口5と筒状管8の外径との差の断面積は筒状管8
の流入路Qの断面積より小さいので、流入路Qよ
りも抵抗が高く分離室で凝集分離された油分は流
入路Qを流れるブローバイガスに押し上げられる
ことなく流出路Rを通りエンジン側に戻される。 The pressure in the oil separation chamber above the bottom plate 7 is lower than that on the engine side below the bottom plate 7, and the blow-by gas flows into the oil separator from the inflow path Q and the inlet port formed by the cylindrical pipe 8. Bottom plate 7
The cross-sectional area of the difference between the outer diameter of the cylindrical tube 8 and the flow path R formed by the flat plate 9 and the drain opening 5 is the cylindrical tube 8.
Since the cross-sectional area of the inflow path Q is smaller than that of the inflow path Q, the oil that has been coagulated and separated in the separation chamber has a higher resistance than the inflow path Q, and is returned to the engine side through the outflow path R without being pushed up by the blow-by gas flowing through the inflow path Q. .
他の実施例として第3図のドレーン部10bは
平板9′に固設した筒状管8′をドレーン開口5に
油分離室側から貫挿し、平板9′に突設したエン
ボス11の頂部を底板7に固設したものであり、
また第4図のドレーン部10Cは筒状管8″の途
中の外周に平板9″を周設し底板7のドレーン開
口5に筒状管8″を貫挿するとともに平板9″に突
設したエンボス11の頂部を底板7に固着したも
のである。平板9″には平板9″に溜まつた油を落
とす小孔12が穿設されており、エンボス11の
数も多くなつている。筒状管8″を延ばしたのは
平板9″に溜つた油を筒状管8″の流入路Qを流れ
るブローバイガスに持ち去られないためである。 As another embodiment, the drain part 10b in FIG. 3 has a cylindrical pipe 8' fixed to a flat plate 9' inserted into the drain opening 5 from the oil separation chamber side, and the top of an embossing 11 protruding from the flat plate 9'. It is fixed to the bottom plate 7,
In addition, the drain part 10C in FIG. 4 has a flat plate 9'' provided around the outer periphery of the cylindrical tube 8'' in the middle, and the cylindrical tube 8'' is inserted into the drain opening 5 of the bottom plate 7 and protrudes from the flat plate 9''. The top of the embossing 11 is fixed to the bottom plate 7. The flat plate 9'' is provided with small holes 12 for dropping oil accumulated on the flat plate 9'', and the number of embossing 11 is also increased. The reason why the cylindrical tube 8'' is extended is to prevent the oil accumulated on the flat plate 9'' from being carried away by the blow-by gas flowing through the inflow path Q of the cylindrical tube 8''.
(考案の効果)
以上のように本考案は開口のみによつてブロー
バイガス中から分離された油分を滴下させていた
オイルセパレータのドレーン部を、外方にエンボ
スを突設し中央にドレーン開口より小径の筒状管
を固設した平板を、オイルセパレータ底板のドレ
ーン開口に筒状管を貫挿するとともにエンボスの
頂部を底板に固着し、ブローバイガスの流入路と
油分の流出路を区分したので、ブローバイガスの
流入と分離した油分の流出が確実となり、ブロー
バイガスの流れによつて油分が持ち去られること
がなく高性能のオイルセパレータが得られる効果
を有する。(Effects of the invention) As described above, the present invention replaces the drain part of the oil separator, which drips oil separated from the blow-by gas only through the opening, by providing an embossed part protruding outward, and allowing the oil separator to drop from the drain opening in the center. A flat plate with a small-diameter cylindrical tube fixed thereon was inserted through the drain opening of the oil separator bottom plate, and the top of the embossing was fixed to the bottom plate to separate the blow-by gas inflow path and the oil outflow path. This ensures that the blow-by gas flows in and the separated oil flows out, and that the oil is not carried away by the flow of the blow-by gas, resulting in a high-performance oil separator.
第1図は従来のオイルセパレータの断面図、第
2図は本考案のオイルセパレータのドレーン部断
面図、第3図第4図は他の実施例のドレーン部断
面図である。
2……オイルセパレータ、5……ドレーン開
口、7……底板、8,8′,8″……筒状管、9,
9′,9″……平板、10a,10b,10c,…
…ドレーン部、11……エンボス、Q……流入
路、R……流出路。
FIG. 1 is a sectional view of a conventional oil separator, FIG. 2 is a sectional view of the drain portion of the oil separator of the present invention, and FIG. 3, FIG. 4 is a sectional view of the drain portion of another embodiment. 2... Oil separator, 5... Drain opening, 7... Bottom plate, 8, 8', 8''... Cylindrical pipe, 9,
9', 9''...flat plate, 10a, 10b, 10c,...
...Drain part, 11... Emboss, Q... Inflow path, R... Outflow path.
Claims (1)
設された底板を配設して油分離室が形成されたオ
イルセパレータにおいて、前記ドレーン開口より
小径の筒状管が中央部に固設され、外方にエンボ
スが突設された平板の筒状管を前記ドレーン開口
に貫挿するとともに平板のエンボスの頂部をドレ
ーン開口周囲の底板に固着したことを特徴とする
オイルセパレータ。 In an oil separator in which an oil separation chamber is formed by disposing a bottom plate with an inflow outlet and a drain opening in a rock cover, a cylindrical pipe with a diameter smaller than the drain opening is fixed in the center and An oil separator characterized in that a flat cylindrical tube with an embossing projecting therein is inserted into the drain opening, and the top of the flat plate embossment is fixed to a bottom plate around the drain opening.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4824783U JPS59154815U (en) | 1983-03-31 | 1983-03-31 | oil separator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4824783U JPS59154815U (en) | 1983-03-31 | 1983-03-31 | oil separator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59154815U JPS59154815U (en) | 1984-10-17 |
JPS6318744Y2 true JPS6318744Y2 (en) | 1988-05-26 |
Family
ID=30178786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4824783U Granted JPS59154815U (en) | 1983-03-31 | 1983-03-31 | oil separator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59154815U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5455247A (en) * | 1977-09-22 | 1979-05-02 | Deere & Co | Separator |
-
1983
- 1983-03-31 JP JP4824783U patent/JPS59154815U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5455247A (en) * | 1977-09-22 | 1979-05-02 | Deere & Co | Separator |
Also Published As
Publication number | Publication date |
---|---|
JPS59154815U (en) | 1984-10-17 |
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