JPS61135914A - Breezer device for engine - Google Patents

Breezer device for engine

Info

Publication number
JPS61135914A
JPS61135914A JP25513284A JP25513284A JPS61135914A JP S61135914 A JPS61135914 A JP S61135914A JP 25513284 A JP25513284 A JP 25513284A JP 25513284 A JP25513284 A JP 25513284A JP S61135914 A JPS61135914 A JP S61135914A
Authority
JP
Japan
Prior art keywords
blow
chamber
crank chamber
crank
gas
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
Application number
JP25513284A
Other languages
Japanese (ja)
Other versions
JPH0120291B2 (en
Inventor
Koichi Fukuo
福尾　幸一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP25513284A priority Critical patent/JPS61135914A/en
Priority to CA496725A priority patent/CA1274133C/en
Priority to GB08529934A priority patent/GB2167810B/en
Priority to US06/804,676 priority patent/US4656991A/en
Priority to DE3542900A priority patent/DE3542900A1/en
Priority to FR8517956A priority patent/FR2574128B1/en
Publication of JPS61135914A publication Critical patent/JPS61135914A/en
Publication of JPH0120291B2 publication Critical patent/JPH0120291B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • 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
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]
    • 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
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting

Abstract

PURPOSE:To prevent mixing of splashed oil in an apparatus in which blow-by gas from a crank room is circulated into an intake system by a method wherein a blow-by gas outlet port is arranged outside of shaft supporting walls at both axial outer sides of a crank shaft in the crank chamber. CONSTITUTION:V-type engine with over-head-cams is made such that a blow-by gas outlet port 11 is arranged at the crank chamber 7 having an oil reservoir 4 at its lower part and the blow-by gas in the crank chamber 7 is circulated back into the intake system. In this case, the outlet port 11 is positioned outside of shaft supporting walls 13 at both axial outer sides of the crank shaft in the crank chamber 7. The outlet port 11 is made by the lower opening end of each of the clearances 15 between both outer side surfaces of the shaft supporting walls 13 and the cover member 14 to be attached to each of the supporting walls. The clearances 15 are communicated with the breezer chamber 16 formed at the lower surface of the bottom wall of V-bank of the cylinder block 2 through the through-pass hole 16a, the breezer chamber 16 is communicated with the intake system containing an intake manihold through a communication passage and a dynamic valve chamber or the like.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、エンジンにおけるブリーザ装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a breather device in an engine.

（従来の技術） 従来この種装置として、実開昭５９−１００９１０号公
報により、第１図に示すようにクランク室ａの下部にオ
イル溜りｂを有するエンジンＣの該クランク室ａにブロ
ーバイガスの取出口ｄを設け、該クランク室ａからのブ
ローバイガスを吸気系に還流させるものは知られ、この
場合該取出口ｄは該クランク室ａの上部のシリンダのス
カート部ｅに設けるを一般とする。(Prior Art) As a conventional device of this type, as shown in Japanese Utility Model Application Publication No. 59-100910, blow-by gas is introduced into the crank chamber a of an engine C having an oil reservoir b at the lower part of the crank chamber a, as shown in FIG. It is known that an outlet d is provided in which the blow-by gas from the crank chamber a is returned to the intake system, and in this case, the outlet d is generally provided in the skirt portion e of the cylinder above the crank chamber a. .

（発明が解決しようとする問題点） 上記従来装置にあっては、ブローバイガスの取出口ｄを
スカート部ｅに設けることからクランク軸ｆの回転によ
る圧力変動の影響を受は易く、而も該クランク軸ｆに連
なるコンロッドｑからのオイル飛沫が該取出口ｄからこ
れに連なるブローバイガス通路内に導かれ勝ちとなる不
都合がある。(Problems to be Solved by the Invention) In the conventional device described above, since the blow-by gas outlet d is provided in the skirt portion e, it is easily affected by pressure fluctuations due to the rotation of the crankshaft f. There is a problem in that oil droplets from the connecting rod q connected to the crankshaft f tend to be guided from the outlet d into the blow-by gas passage connected thereto.

本発明は、このような不都合を解消した装置を提供する
ことをその目的とする。An object of the present invention is to provide a device that eliminates such inconveniences.

（問題点を解決するための手段） 本発明は、かかる目的を達成すべく、クランク室の下部
にオイル溜りを有するエンジンの該クランク室にブロー
バイガスの取出口を設け、該クランク室からのブローバ
イガスを吸気系に還流させるものにおいて、該クランク
室のクランク軸方白画外側のクランク軸の軸支壁の外側
に位置させて夫々該取出口を設けて成る。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a blow-by gas outlet in the crank chamber of an engine having an oil reservoir in the lower part of the crank chamber, and the blow-by gas is removed from the crank chamber. In a system for returning gas to the intake system, the outlet is located outside the shaft support wall of the crankshaft on the outside of the crankshaft direction of the crank chamber.

（実施例） 本発明を図示の実施例につき説明する。(Example) The invention will now be described with reference to illustrated embodiments.

図面は■型エンジンに本発明装置の１例を適用した場合
を示すもので、（１）はＶ型のシリンダブロック（２）
と、該シリンダロック（２）の上側に施される１対のシ
リンダヘッド（３）　（３）とから成る■型エンジンを
示し、該シリンダブロック（２）の下側にオイルパンを
設けてオイル溜り（４）を形成すると共に、該ブロック
（２）の複数のシリンダの各ピストン（５）を各コンロ
ッド（６）を介してクランク室（７）内のクランク軸（
８）に連結し、該各シリンダヘッド（３）に吸排気弁（
９）の複数と、これら弁（９）を開閉作動させ“るカム
軸０Ｑとを設け、全体として０１１Ｃ型のＶ型エンジン
を構成した。The drawing shows an example of the device of the present invention applied to a ■-type engine, where (1) shows a V-type cylinder block (2).
and a pair of cylinder heads (3) (3) installed on the upper side of the cylinder lock (2). A reservoir (4) is formed, and each piston (5) of a plurality of cylinders of the block (2) is connected to a crankshaft (4) in a crank chamber (7) via each connecting rod (6).
8), and each cylinder head (3) is connected to an intake and exhaust valve (
A plurality of valves (9) and a camshaft 0Q for opening and closing these valves (9) were provided, and a 011C type V-type engine was constructed as a whole.

そして、クランク室（７）にブローバイガスの取出口１
１Ｔ）を設け、該クランク室（７）からのブローバイガ
スを吸気系に還流させるようにした。Then, there is a blow-by gas outlet 1 in the crank chamber (7).
1T) was provided to allow blow-by gas from the crank chamber (7) to flow back into the intake system.

以上は従来のものと特に異ならないが、本発明によれば
クランク室（７）のクランク軸方白画外側のクランク軸
（８）軸支壁ａｅの外側に位置させて夫々ブローバイガ
スの取出口ｃ１１を設けるもので、これを図示のものに
つき詳述するに、該両数出口（ｔＤ　曲は第３図乃至第
５図に示すように該両軸支壁（１３０の各外側面とこれ
に夫々前されるカバ一部材（ＩｌＯ（′ｌΦとの間の各
空隙に０９０９の下側の開目端から成るものとし、前記
シリンダブロック（２）のＶバンク底壁の下面にブリー
ザ室ａｅを形成して、該各空隙０９を該室ａｅにその両
の各透孔（１６ａ）を介して連通させると共に、該室（
ｌｅを該シリンダブロック（２）の各シリンダヘッド（
３）の上側の動弁ｖ（３ａ）に該ブロック（２）のシリ
ンダ壁に形成した連通路０７）を介して連通させ、更に
該両動弁室（３ａ）（３ａ）の一方をｐｃｖバルブｌ′
１枠を介して前記吸気系の例えば吸気マニホルドｑ９と
、他方をスロットルバルブ■の上流側とに連通させ、か
くて該クランク室（７）内のブローバイガスが該両数出
口（’ＩＴ）　（’１１）から該室（ｌｅと該各動弁室
（３ａ）とを介して吸気系に還流されるようにした。Although the above is not particularly different from the conventional one, according to the present invention, each blow-by gas outlet is located outside the crankshaft (8) shaft support wall ae on the outside of the crankshaft direction white picture of the crank chamber (7). c11, and to explain this in detail with respect to the one shown in the figure, the number of exits (tD) is as shown in FIGS. The lower open end of 0909 is placed in each gap between the cover members (IlO('lΦ)), and a breather chamber ae is provided on the lower surface of the V-bank bottom wall of the cylinder block (2). the respective voids 09 are communicated with the chamber ae through the respective through holes (16a), and the chamber (
le to each cylinder head (of the cylinder block (2)).
3) communicate with the upper valve v (3a) via a communication passage 07) formed in the cylinder wall of the block (2), and further connect one of the two valve chambers (3a) (3a) with the PCV valve. l′
One frame communicates with the intake system, for example, the intake manifold q9, and the other with the upstream side of the throttle valve (7), so that the blow-by gas in the crank chamber (7) flows through the two outlets ('IT) ( '11) to the intake system via the chamber (le) and each valve operating chamber (3a).

図面で０はクランク室（７）に設けたバックルプレー１
〜、のはシリンダブロック（２）のシリンダ壁に形成し
た動弁室（３ａ）内のオイルを前記オイル溜り（４）内
に戻すオイル落し通路を示す。In the drawing, 0 is buckle play 1 installed in the crank chamber (7)
. . . indicate an oil drop passage for returning oil in the valve operating chamber (3a) formed in the cylinder wall of the cylinder block (2) into the oil reservoir (4).

（作　用） 本発明の作用を上記実施例に基いて説明するに、エンジ
ン（１）のクランク室（７）内のブローバイガスはブロ
ーバイガスの取出口０１０）からブリーザ室ａｅ及び各
動弁室（３ａ）を通って吸気系に還流されるもので、こ
の点は従来のものと特に異ならないが、従来のものでは
取出口ｄをクランク室ａの上部のシリンダのスカート部
ｅに設けることから上記した不都合があるのに対し、本
発明のものではクランク室（７）のクランク軸方向両外
側のクランク軸（８）の軸支壁Ｑ３１１３の外側に位置
させて夫々ブローバイガスの取出口（ＩＴ）　ａｔを設
けるもので、該各軸支壁０）が遮蔽板の働きをして該ク
ランク＠（８）の回転による該取出口ｌ′ｌ′Ｄに対す
る圧力変動のＷｅ響が少なく、而もオイル飛沫が導かれ
にくくなる。(Function) To explain the function of the present invention based on the above embodiment, the blow-by gas in the crank chamber (7) of the engine (1) is transferred from the blow-by gas outlet 010 to the breather chamber ae and each valve chamber. (3a) and is returned to the intake system, and this point is not particularly different from the conventional one, but in the conventional one, the outlet d is provided in the skirt part e of the cylinder above the crank chamber a. In contrast to the above-mentioned disadvantages, in the present invention, blow-by gas outlet ports (IT ) at is provided, and each shaft support wall 0) acts as a shielding plate, so that the influence of pressure fluctuations on the outlet l'l'D due to the rotation of the crank @(8) is small, and Oil droplets are less likely to be guided.

又、エンジン（１）を車両に横置きにして搭載した場合
、コーナリング時にクランク室（７）内のオイルがクラ
ンク軸方向−側に片寄って両数出口（＋１）　ｌＴｈの
一方がオイルににつで閉塞されても他方は開放状態に保
持され良好にブローバイガスを取出すことができ、更に
この場合、上記実施例のように両側の取出口（’ＩＴ）
　（ｌｖの少なくとも一方を軸支壁○）の軸受部を挾ん
でクランク軸（８）の直交方向前後に位置させて１対に
設けると、エンジン（１）の該クランク軸（８）の軸方
向のオイルの片寄りだけでなく、該エンジン（１）の該
クランク軸（８）の直交方向前後へのオイルの片寄りに
対してもこれら取出口的のいずれかが開放状態に保持さ
れて右利である。Also, when the engine (1) is mounted horizontally on the vehicle, the oil in the crank chamber (7) is biased toward the negative side in the crankshaft direction during cornering, causing one of the two outlets (+1) lTh to become saturated with oil. Even if the other side is closed, the other side is kept open and the blow-by gas can be taken out well.
(At least one of the lvs is placed in the front and back of the crankshaft (8) in a direction perpendicular to the crankshaft (8), sandwiching the bearing part of the shaft support wall ○). One of these outlet ports is held open not only to prevent the oil from shifting, but also to prevent the oil from shifting back and forth in the direction orthogonal to the crankshaft (8) of the engine (1). It is advantageous.

（発明の効果） このように本発明によるときは、ブローバイガスの取出
口をクランク室のクランク軸方向両外側のクランク軸の
軸支壁の外側に位置させて夫々設けるもので、該両軸支
壁が夫々遮蔽板の働きをすることからクランク軸の回転
による圧力変動やオイル飛沫の取出口への波及を可及的
に防止でき、且つクランク軸方向へのオ゛イルの片寄り
によっても両側の取出口の一方は開放状態に保持されて
ブローバイガスの還流に支承を生じない効果を有する。(Effects of the Invention) According to the present invention, the blow-by gas outlet is located outside the shaft support walls of the crankshaft on both sides of the crankshaft direction of the crank chamber, and Since each wall acts as a shielding plate, it is possible to prevent pressure fluctuations caused by the rotation of the crankshaft and oil droplets from spreading to the outlet, and even if the oil is shifted in the direction of the crankshaft, it can cause damage to both sides. One of the outlet ports is kept open, which has the effect of preventing blow-by gas reflux from occurring.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来例の説明線図、第２図は本発明装置の１例
を具備したエンジンの截断正面図、第３図はその■−■
線截線側断側面図４図及び第５図は夫々第３図のＴＶ−
ＴＶ線及びｖ−ｖｍｍ面断面図ある。 （１）・・・エンジン （４）・・・オイル溜り （７）・・・クランク室 （８）・・・クランク軸 ｏｎ　ｌ′ｌｉ＋・・・取出口 １１：）　ｎ３１・・・軸支壁 手続補正書 昭和　９１・１・−３□Fig. 1 is an explanatory diagram of a conventional example, Fig. 2 is a cutaway front view of an engine equipped with an example of the device of the present invention, and Fig. 3 is its ■-■
The cut-line side cross-sectional side views of FIGS. 4 and 5 are the TV- of FIG. 3, respectively.
There are TV line and v-vmm plane cross-sectional views. (1)...Engine (4)...Oil reservoir (7)...Crank chamber (8)...Crankshaft on l'li+...Outlet port 11:) n31...Shaft support wall Procedural amendment Showa 91.1.-3□

Claims (1)

【特許請求の範囲】 １、クランク室の下部にオイル溜りを有す るエンジンの該クランク室にブローバイガスの取出口を
設け、該クランク室からのブローバイガスを吸気系に還
流させるものにおいて、該クランク室のクランク軸方向
両外側のクランク軸の軸支壁の外側に位置させて夫々該
取出口を設けて成るエンジンにおけるブリーザ装置。 ２、該両外側の軸支壁の少なくとも一方の軸支壁の外側
に該取出口を該クランク軸の直交方向前後に位置させて
１対に設けることを特徴とする特許請求の範囲第１項に
記載のエンジンにおけるブリーザ装置。[Scope of Claims] 1. In an engine having an oil reservoir in the lower part of the crank chamber, the crank chamber is provided with a blow-by gas outlet, and the blow-by gas from the crank chamber is recirculated to the intake system. 1. A breather device for an engine, wherein said intake ports are provided on the outside of the shaft support walls of the crankshaft on both sides in the crankshaft direction. 2. Claim 1, characterized in that a pair of the outlet ports are provided on the outside of at least one of the two outer shaft support walls, and are located front and rear in a direction orthogonal to the crankshaft. A breather device in the engine described in .
JP25513284A 1984-12-04 1984-12-04 Breezer device for engine Granted JPS61135914A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP25513284A JPS61135914A (en) 1984-12-04 1984-12-04 Breezer device for engine
CA496725A CA1274133C (en) 1984-12-04 1985-12-03 Crank case ventilation system
GB08529934A GB2167810B (en) 1984-12-04 1985-12-04 V i.c. engine crankcase breather system
US06/804,676 US4656991A (en) 1984-12-04 1985-12-04 Breather device for internal combustion engine
DE3542900A DE3542900A1 (en) 1984-12-04 1985-12-04 VENTILATION SYSTEM IN AN INTERNAL COMBUSTION ENGINE
FR8517956A FR2574128B1 (en) 1984-12-04 1985-12-04 BREATHER OF INTERNAL COMBUSTION ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25513284A JPS61135914A (en) 1984-12-04 1984-12-04 Breezer device for engine

Publications (2)

Publication Number Publication Date
JPS61135914A true JPS61135914A (en) 1986-06-23
JPH0120291B2 JPH0120291B2 (en) 1989-04-14

Family

ID=17274526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25513284A Granted JPS61135914A (en) 1984-12-04 1984-12-04 Breezer device for engine

Country Status (1)

Country Link
JP (1) JPS61135914A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6279554B1 (en) 1999-02-01 2001-08-28 Honda Giken Kogyo Kabushiki Kaisha Engine crankcase ventilation system including a blowby gas passage defined between crankcase members
JP2010500500A (en) * 2006-08-08 2010-01-07 インターナショナル エンジン インテレクチュアル プロパティー カンパニー リミテッド ライアビリティ カンパニー Crankcase for internal combustion engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56121812A (en) * 1980-02-29 1981-09-24 Yamaha Motor Co Ltd Breather device in engine crankcase
JPS5825605U (en) * 1981-08-13 1983-02-18 ダイハツ工業株式会社 Engine oil scattering prevention device
JPS60147708U (en) * 1984-03-12 1985-10-01 トヨタ自動車株式会社 Blow-by gas reduction device for V-type engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3840789A (en) * 1973-01-31 1974-10-08 Russell A Co Inc Control circuit for vibratory devices

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56121812A (en) * 1980-02-29 1981-09-24 Yamaha Motor Co Ltd Breather device in engine crankcase
JPS5825605U (en) * 1981-08-13 1983-02-18 ダイハツ工業株式会社 Engine oil scattering prevention device
JPS60147708U (en) * 1984-03-12 1985-10-01 トヨタ自動車株式会社 Blow-by gas reduction device for V-type engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6279554B1 (en) 1999-02-01 2001-08-28 Honda Giken Kogyo Kabushiki Kaisha Engine crankcase ventilation system including a blowby gas passage defined between crankcase members
JP2010500500A (en) * 2006-08-08 2010-01-07 インターナショナル エンジン インテレクチュアル プロパティー カンパニー リミテッド ライアビリティ カンパニー Crankcase for internal combustion engine

Also Published As

Publication number Publication date
JPH0120291B2 (en) 1989-04-14

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