JPH0626319A - Oil return structure of internal combustion engine - Google Patents
Oil return structure of internal combustion engineInfo
- Publication number
- JPH0626319A JPH0626319A JP4180102A JP18010292A JPH0626319A JP H0626319 A JPH0626319 A JP H0626319A JP 4180102 A JP4180102 A JP 4180102A JP 18010292 A JP18010292 A JP 18010292A JP H0626319 A JPH0626319 A JP H0626319A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- chamber
- cylinder head
- head cover
- baffle plate
- 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.)
- Granted
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
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
-
- 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
- F01M2013/0488—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase
-
- 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)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関のオイル戻し
構造の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved oil return structure for an internal combustion engine.
【０００２】[0002]
【従来の技術】燃焼室からクランク室またはシリンダヘ
ッド上の動弁室に吹き抜けたブローバイガスを吸気系に
還流する内燃機関にあっては、ブローバイガスと共にオ
イル分が持ち去られることを防止する必要がある。2. Description of the Related Art In an internal combustion engine that recirculates blow-by gas blown from a combustion chamber into a crank chamber or a valve operating chamber on a cylinder head to an intake system, it is necessary to prevent oil from being taken away together with the blow-by gas. is there.
【０００３】一般に、シリンダヘッドカバーの内側にバ
ッフルプレートを取付けてオイルセパレータ室を画成し
ており、ブローバイガスがオイルセパレータ室を通る過
程でこれに含まれるオイル分を分離させ、オイルセパレ
ータ室で集められたオイルをバッフルプレートに開口す
るオイル落とし穴から動弁室に流下させるようになって
いる(実開昭５７ー１７１１６６号公報、同５８−２３
４４号公報、同６３−２６７１３号公報、参照)。Generally, a baffle plate is attached to the inside of the cylinder head cover to define an oil separator chamber. When the blow-by gas passes through the oil separator chamber, the oil component contained therein is separated and collected in the oil separator chamber. The oil thus collected is made to flow down to the valve operating chamber from the oil drop hole that opens in the baffle plate (Japanese Utility Model Laid-Open No. 57-171166, 58-23).
44, 63-26713).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな従来装置にあっては、オイルセパレータ室で集めら
れたオイルがオイル落とし穴から流下する過程で、オイ
ルセパレータ室におけるブローバイガスの流れ、および
オイルセパレータ室と動弁室間の圧力差によって吸い上
げられて、オイルの戻りが遅れ、またオイル消費を増大
させる可能性があった。However, in such a conventional device, in the process in which the oil collected in the oil separator chamber flows down from the oil drop hole, the flow of the blow-by gas in the oil separator chamber and the oil separator. The pressure difference between the chamber and the valve operating chamber sucked up the oil, which delayed the return of the oil and increased the oil consumption.
【０００５】本発明は上記の問題点に着目し、シリンダ
ヘッドカバー内のオイルセパレータ室からオイルを確実
に戻す構造を提供することを目的とする。In view of the above problems, the present invention has an object to provide a structure for reliably returning the oil from the oil separator chamber in the cylinder head cover.
【０００６】[0006]
【課題を解決するための手段】本発明は、シリンダヘッ
ドカバーの内側にバッフルプレートを取付け、両者の間
にブローバイガスを通してこれに含まれるオイル分を分
離するオイルセパレータ室を画成する内燃機関におい
て、前記オイルセパレータ室の下部に面して凹状に窪む
油溜室を画成するとともに、前記バッフルプレートに油
溜室と動弁室を連通するオイル落とし穴を開口させる。SUMMARY OF THE INVENTION The present invention relates to an internal combustion engine in which a baffle plate is attached to the inside of a cylinder head cover, and an oil separator chamber for separating an oil component contained therein by passing a blow-by gas between them is provided. An oil reservoir chamber is formed so as to face the lower portion of the oil separator chamber and is recessed in a concave shape, and an oil drop hole for communicating the oil reservoir chamber and the valve operating chamber is opened in the baffle plate.
【０００７】また、シリンダヘッドカバーに点火栓を挿
通させる点火栓ボスと、隣り合う点火栓ボスを結ぶリブ
を一体形成し、このリブによって前記油溜室を画成す
る。Further, a spark plug boss through which the spark plug is inserted and a rib connecting adjacent spark plug bosses are integrally formed in the cylinder head cover, and the rib defines the oil reservoir.
【０００８】[0008]
【作用】油溜室はオイルセパレータ室に面して凹状に窪
んでいるため、オイルセパレータ室におけるブローバイ
ガスの主流に対して淀みとなり、オイル落とし穴を流下
するオイルがブローバイガスの流れに影響を受けること
が抑えられ、オイルの戻しを速やかに行うことができ
る。[Function] Since the oil reservoir chamber is recessed in a concave shape facing the oil separator chamber, it becomes stagnant with respect to the main flow of blow-by gas in the oil separator chamber, and the oil flowing down through the oil drop hole is affected by the flow of blow-by gas As a result, oil can be returned quickly.
【０００９】また、隣り合う点火栓ボスを結ぶリブによ
って油溜室を画成することにより、シリンダヘッドカバ
ーの剛性を高めて、シリンダヘッドカバーから騒音が発
生することを防止できる。Further, the rigidity of the cylinder head cover is increased by defining the oil reservoir by the rib connecting the adjacent spark plug bosses, and it is possible to prevent noise from being generated from the cylinder head cover.
【００１０】[0010]
【実施例】以下、本発明の実施例を添付図面に基づいて
説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１１】図１、図２はＶ型６気筒機関に本発明を適
用した実施例を示しており、シリンダヘッドカバー６の
内側にはバッフルプレート７が取付けられ、両者の間に
２つのオイルセパレータ室８，９が画成され、吸気系に
還流されるブローバイガスが各オイルセパレータ室８，
９を通過し、ブローバイガス中に含まれるオイル分が分
離されるようになっている。バッフルプレート７の下方
にはシリンダヘッドとの間に動弁室１０が画成され、動
弁室１０には軸受２３を介して２本のカムシャフトが備
えられ、吸・排気弁を開閉駆動するようになっている。1 and 2 show an embodiment in which the present invention is applied to a V-type 6-cylinder engine. A baffle plate 7 is mounted inside the cylinder head cover 6, and two oil separator chambers are provided between the two. 8 and 9 are defined, and the blow-by gas recirculated to the intake system is supplied to each oil separator chamber 8,
The oil component contained in the blow-by gas after passing through 9 is separated. A valve operating chamber 10 is defined below the baffle plate 7 with the cylinder head, and the valve operating chamber 10 is provided with two cam shafts via bearings 23 to open and close the intake and exhaust valves. It is like this.
【００１２】樹脂製シリンダヘッドカバー６は、シリン
ダヘッドに対する接合フランジ１１と、バッフルプレー
ト７に対する接合フランジ１２と、点火栓を挿通させる
３つの点火栓ボス１５と、チェーン室５を仕切るリブ１
４と、オイルフィラーキャップに対するボス１３等が一
体形成される。The resin cylinder head cover 6 has a joint flange 11 for the cylinder head, a joint flange 12 for the baffle plate 7, three spark plug bosses 15 for inserting spark plugs, and a rib 1 for partitioning the chain chamber 5.
4 and the boss 13 for the oil filler cap are integrally formed.
【００１３】シリンダヘッドカバー６にはオイルセパレ
ータ室８の天井壁部２０から下方に突出する複数の横リ
ブ２１が形成される一方、バッフルプレート７には上方
に突出する複数の横リブが形成され、図１に矢印で示す
ように運転条件に応じて機関前方または後方に流れるブ
ローバイガスを蛇行させて、ブローバイガス中に含まれ
るオイルの分離を促すようになっている。The cylinder head cover 6 is formed with a plurality of lateral ribs 21 projecting downward from the ceiling wall portion 20 of the oil separator chamber 8, while the baffle plate 7 is formed with a plurality of lateral ribs projecting upward. As shown by the arrow in FIG. 1, the blow-by gas flowing forward or backward of the engine is made to meander according to the operating conditions to promote the separation of the oil contained in the blow-by gas.
【００１４】シリンダヘッドカバー６は各点火栓ボス１
５を結ぶリブ１６が一体形成され、各リブ１６により左
右のオイルセパレータ室８，９が仕切られている。The cylinder head cover 6 is for each spark plug boss 1.
A rib 16 connecting the five is integrally formed, and each of the ribs 16 partitions the left and right oil separator chambers 8 and 9.
【００１５】各リブ１６と点火栓ボス１５の間にオイル
セパレータ室８の下部に面して凹状に窪む油溜室１７が
画成される。各リブ１６は各点火栓ボス１５に対してそ
の接線方向に接続する。すなわち、各リブ１６は平面図
（図１）上においてブローバイガスの流れ方向に対して
所定角度で傾斜している。An oil reservoir chamber 17 is defined between each rib 16 and the spark plug boss 15 so as to face the lower portion of the oil separator chamber 8 and be concavely recessed. Each rib 16 connects to each spark plug boss 15 in the tangential direction thereof. That is, each rib 16 is inclined at a predetermined angle with respect to the flow direction of the blow-by gas on the plan view (FIG. 1).
【００１６】バッフルプレート７には各油溜室１７と動
弁室１０を連通する３つのオイル落とし穴１８が形成さ
れ、オイルセパレータ室８に溜まったオイルを動弁室１
０に流下させるようになっている。各オイル落とし穴１
８は、傾斜するバッフルプレート７によって画成される
油溜室１７の最下部に開口する。The baffle plate 7 is formed with three oil drop holes 18 for communicating the respective oil reservoir chambers 17 with the valve operating chamber 10, so that the oil accumulated in the oil separator chamber 8 is transferred to the valve operating chamber 1
It is designed to flow to 0. Each oil pit 1
8 opens at the bottom of the oil reservoir 17 defined by the slanting baffle plate 7.
【００１７】図３は機関における全体的なガスの流れを
示しているが、図中白抜き矢印で示す新気は、スロット
ルバルブより上流側の吸気通路からホース４５を通って
左バンクのシリンダヘッドカバー６内のオイルセパレー
タ室８，９に導入される。この新気の一部は、バンク間
の接続用ホース４７を通って右バンクのオイルセパレー
タ室８に導入される。そして、各オイルセパレータ室
８，９の新気導入口４９，５０，５１から各動弁室１０
に導入され、各動弁室１０を掃気するとともに、図示し
ないオイルリターン通路を通ってオルパン５２とシリン
ダブロックとで画成されるクランク室に流入する。また
一部の新気は、チェンカバー４を介して画成されるチェ
ーン室５を通ってクランク室に流入する。図中黒矢印で
示すブローバイガスは、インテークマニホールドの負圧
によって吸い込まれ、チェーン室５を上昇して、チェー
ン室５内のオイルセパレータ室４１に流入し、ここでオ
イル分がある程度除去された後に、ブローバイホース４
２を通ってシリンダヘッドカバー６内のオイルセパレー
タ室９に流入し、ここからホース５５を通り流量コント
ロールバルブ（ＰＣＶ）を経てスロットルバルブより下
流側の吸気通路に吸入される。流量コントロールバルブ
は、スロットルバルブより下流側に生じる吸入負圧に応
じてブローバイガスの還流量が調節され、吸入空気量が
減少するのに伴って、ブローバイガスの還流量を小さく
して空燃比を大きく乱さないように調節する。またスロ
ットルバルブの全開付近で吸入負圧が低下する高負荷運
転時にブローバイガスの一部はホース４５を逆流してス
ロットルバルブより上流側の吸気通路に還流する。FIG. 3 shows the overall gas flow in the engine. The fresh air indicated by the white arrow in the figure passes through the hose 45 from the intake passage upstream of the throttle valve and the cylinder head cover of the left bank. It is introduced into the oil separator chambers 8 and 9 inside the unit 6. A part of this fresh air is introduced into the oil separator chamber 8 of the right bank through the connection hose 47 between the banks. Then, from the fresh air introduction ports 49, 50, 51 of the oil separator chambers 8, 9 to the valve operating chambers 10 respectively.
Is introduced into the crank chamber, and the valve operating chambers 10 are scavenged and flow into a crank chamber defined by the orphan 52 and the cylinder block through an oil return passage (not shown). Further, a part of the fresh air flows into the crank chamber through the chain chamber 5 defined by the chain cover 4. The blow-by gas indicated by the black arrow in the figure is sucked by the negative pressure of the intake manifold, rises in the chain chamber 5, and flows into the oil separator chamber 41 in the chain chamber 5, where the oil component is removed to some extent. , Blow-by hose 4
2 into the oil separator chamber 9 in the cylinder head cover 6 and then from there through the hose 55, the flow control valve (PCV) and the intake passage downstream of the throttle valve. The flow control valve adjusts the recirculation amount of blow-by gas according to the suction negative pressure generated on the downstream side of the throttle valve, and reduces the recirculation amount of blow-by gas to reduce the air-fuel ratio as the intake air amount decreases. Adjust so that it does not disturb too much. Further, during high load operation in which the suction negative pressure decreases near the fully open position of the throttle valve, part of the blow-by gas flows backward through the hose 45 and returns to the intake passage upstream of the throttle valve.
【００１８】このように構成してあり、オイルセパレー
タ室９を流れるブローバイガスは図１に矢印で示すよう
に機関の前後方向に流れる過程で、ブローバイガス中に
含まれるオイル分が分離され、バッフルプレート７上を
流下してオイルセパレータ室８の下部に位置する各油溜
室１７に集められ、各油溜室１７に開口するオイル落と
し穴１８を通って動弁室１０に流下する。With the above construction, the blow-by gas flowing through the oil separator chamber 9 is separated from the oil component contained in the blow-by gas in the process of flowing in the front-rear direction of the engine as shown by the arrow in FIG. It flows down on the plate 7 and is collected in the oil reservoir chambers 17 located under the oil separator chambers 8 and flows down into the valve operating chamber 10 through the oil drop holes 18 opening in the oil reservoir chambers 17.
【００１９】油溜室１７はオイルセパレータ室８に面し
て凹状に窪んでいるため、ブローバイガスの流れに対し
て淀みとなり、オイル落とし穴１８を通って流下するオ
イルがオイルセパレータ室８におけるブローバイガスの
流れの影響を受けることが抑えれ、オイルがオイル落と
し穴１８を逆流してオイルセパレータ室８に吸い上げら
れることを防止できる。Since the oil reservoir chamber 17 is recessed in a concave shape facing the oil separator chamber 8, it becomes stagnant with respect to the flow of blow-by gas, and the oil flowing down through the oil drop hole 18 is blow-by gas in the oil separator chamber 8. It is possible to suppress the influence of the flow of oil and prevent the oil from backflowing through the oil drop hole 18 and being sucked up by the oil separator chamber 8.
【００２０】また、各リブ１６はシリンダヘッドカバー
６の中央部に位置して各点火栓ボス１５を結んでいるた
め、シリンダヘッドカバー６の剛性を高めることによ
り、シリンダヘッドカバー６から放射音が発生すること
を防止できる。Further, since each rib 16 is located at the center of the cylinder head cover 6 and connects each spark plug boss 15, the rigidity of the cylinder head cover 6 is increased, so that the cylinder head cover 6 emits a radiated sound. Can be prevented.
【００２１】次に、図４に示した他の実施例は、バッフ
ルプレート７にオイル落とし穴１８を画成するパイプ２
５を一体形成するものである。Next, another embodiment shown in FIG. 4 is a pipe 2 which defines an oil drop hole 18 in the baffle plate 7.
5 is integrally formed.
【００２２】パイプ２５はその口径が１〜５ｍｍの範囲
で先細となるように形成され、パイプ内および油溜室１
７に適正量のオイルが溜まるようにして、オイル落とし
穴１８をオイルが逆流することを防止する。The pipe 25 is formed so that its diameter is tapered within a range of 1 to 5 mm.
A proper amount of oil is collected in 7 to prevent the oil from flowing backward through the oil drop hole 18.
【００２３】次に、図５に示した他の実施例は、シリン
ダヘッドカバー６に各点火栓ボス１５を結ぶリブ２６を
一体形成し、このリブ２６がオイル落とし穴１８を囲む
ようにしてＵ字形に湾曲する湾曲部２６ａと、点火栓ボ
ス１５と湾曲部２６ａを結ぶ傾斜部２６ｂを有するもの
である。Next, in another embodiment shown in FIG. 5, a rib 26 connecting the spark plug bosses 15 is integrally formed on the cylinder head cover 6, and the rib 26 is curved in a U shape so as to surround the oil drop hole 18. It has a curved portion 26a and an inclined portion 26b connecting the spark plug boss 15 and the curved portion 26a.
【００２４】このリブ２６の湾曲部２６ａによって画成
される各油溜室１７はオイルセパレータ室８に対して直
交して窪んでいるため、ブローバイガスの流れに対して
ガス流動のさらに少ない淀みとなり、オイル落とし穴１
８を流下するオイルがオイルセパレータ室８におけるブ
ローバイガスの流れの影響を受けることを抑制し、オイ
ルがオイル落とし穴１８を逆流してオイルセパレータ室
８に吸い込まれることを確実に防止できる。Since each oil reservoir chamber 17 defined by the curved portion 26a of the rib 26 is recessed orthogonally to the oil separator chamber 8, it becomes a stagnation in which the gas flow is further smaller than the flow of the blow-by gas. , Oil pit 1
The oil flowing down 8 can be suppressed from being influenced by the flow of the blow-by gas in the oil separator chamber 8, and the oil can be reliably prevented from flowing backward through the oil drop hole 18 and being sucked into the oil separator chamber 8.
【００２５】[0025]
【発明の効果】以上説明したように本発明は、オイルセ
パレータ室の下部に面して凹状に窪む油溜室を画成する
とともに、バッフルプレートに油溜室と動弁室を連通す
るオイル落とし穴を開口させたため、油溜室からオイル
落とし穴を通って流下するオイルがオイルセパレータ室
におけるブローバイガスの流れの影響を受けることが少
なく、オイルを動弁室に速やかに戻すことができる。As described above, according to the present invention, an oil reservoir chamber that faces the lower portion of the oil separator chamber and is recessed in a concave shape is formed, and the baffle plate connects the oil reservoir chamber and the valve operating chamber to each other. Since the drop hole is opened, the oil flowing down from the oil reservoir through the oil drop hole is less affected by the flow of blow-by gas in the oil separator chamber, and the oil can be quickly returned to the valve operating chamber.
【００２６】また、シリンダヘッドカバーに点火栓を挿
通させる点火栓ボスと、隣り合う点火栓ボスを結ぶリブ
を一体形成し、このリブによって前記油溜室を画成した
ため、シリンダヘッドカバーの剛性を高めて、シリンダ
ヘッドカバーから騒音が発生することを防止できる。Further, since the ignition plug boss for inserting the ignition plug into the cylinder head cover and the rib connecting the adjacent ignition plug bosses are integrally formed, and the oil reservoir is defined by the rib, the rigidity of the cylinder head cover is enhanced. It is possible to prevent noise from being generated from the cylinder head cover.
【図１】本発明の実施例を示すシリンダヘッドカバーの
平面図である。FIG. 1 is a plan view of a cylinder head cover showing an embodiment of the present invention.
【図２】同じくシリンダヘッドカバーおよびバッフルプ
レートの横断面図である。FIG. 2 is a transverse sectional view of a cylinder head cover and a baffle plate of the same.
【図３】同じくガスの流れを示す機関の分解斜視図であ
る。FIG. 3 is an exploded perspective view of the engine similarly showing the flow of gas.
【図４】他の実施例を示すシリンダヘッドカバーおよび
バッフルプレートの横断面図である。FIG. 4 is a transverse sectional view of a cylinder head cover and a baffle plate showing another embodiment.
【図５】さらに他の実施例を示すシリンダヘッドカバー
の平面図である。FIG. 5 is a plan view of a cylinder head cover showing still another embodiment.
６ シリンダヘッドカバー ７ バッフルプレート ８ オイルセパレータ室 １０ 動弁室 １６ リブ １７ 油溜室 １８ オイル落とし穴 6 Cylinder Head Cover 7 Baffle Plate 8 Oil Separator Chamber 10 Valve Chamber 16 Rib 17 Oil Storage Chamber 18 Oil Drop Hole
Claims (2)
プレートを取付け、両者の間にブローバイガスを通して
これに含まれるオイル分を分離するオイルセパレータ室
を画成する内燃機関において、前記オイルセパレータ室
の下部に面して凹状に窪む油溜室を画成するとともに、
前記バッフルプレートに油溜室と動弁室を連通するオイ
ル落とし穴を開口させたことを特徴とする内燃機関のオ
イル戻し構造。1. An internal combustion engine in which a baffle plate is mounted inside a cylinder head cover and an oil separator chamber for separating an oil component contained therein by passing a blow-by gas between them is defined. To define a concave oil reservoir
An oil return structure for an internal combustion engine, characterized in that an oil drop hole communicating with the oil reservoir chamber and the valve operating chamber is opened in the baffle plate.
通させる点火栓ボスと、隣り合う点火栓ボスを結ぶリブ
を一体形成し、このリブによって前記油溜室を画成した
ことを特徴とする請求項１記載の内燃機関のオイル戻し
構造。2. An ignition plug boss for inserting an ignition plug into the cylinder head cover and a rib connecting the adjacent ignition plug bosses are integrally formed, and the rib defines the oil reservoir. 1. The oil return structure for an internal combustion engine according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4180102A JP2924467B2 (en) | 1992-07-07 | 1992-07-07 | Oil return structure of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4180102A JP2924467B2 (en) | 1992-07-07 | 1992-07-07 | Oil return structure of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0626319A true JPH0626319A (en) | 1994-02-01 |
| JP2924467B2 JP2924467B2 (en) | 1999-07-26 |
Family
ID=16077469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4180102A Expired - Fee Related JP2924467B2 (en) | 1992-07-07 | 1992-07-07 | Oil return structure of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2924467B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010096154A (en) * | 2008-10-20 | 2010-04-30 | Aichi Mach Ind Co Ltd | Vapor-liquid separating structure |
| CN103397952A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Cylinder head cover oil return structure of horizontal engine |
| JP2014163334A (en) * | 2013-02-27 | 2014-09-08 | Mahle Filter Systems Japan Corp | Cylinder head cover for internal combustion engine |
| JP2014218974A (en) * | 2013-05-10 | 2014-11-20 | スズキ株式会社 | Cylinder head cover of internal combustion engine |
| JP2020176599A (en) * | 2019-04-22 | 2020-10-29 | ダイハツ工業株式会社 | Internal combustion engine |
-
1992
- 1992-07-07 JP JP4180102A patent/JP2924467B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010096154A (en) * | 2008-10-20 | 2010-04-30 | Aichi Mach Ind Co Ltd | Vapor-liquid separating structure |
| JP2014163334A (en) * | 2013-02-27 | 2014-09-08 | Mahle Filter Systems Japan Corp | Cylinder head cover for internal combustion engine |
| JP2014218974A (en) * | 2013-05-10 | 2014-11-20 | スズキ株式会社 | Cylinder head cover of internal combustion engine |
| CN103397952A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Cylinder head cover oil return structure of horizontal engine |
| JP2020176599A (en) * | 2019-04-22 | 2020-10-29 | ダイハツ工業株式会社 | Internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2924467B2 (en) | 1999-07-26 |
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