JPS6226592Y2 - - Google Patents
Info
- Publication number
- JPS6226592Y2 JPS6226592Y2 JP4511781U JP4511781U JPS6226592Y2 JP S6226592 Y2 JPS6226592 Y2 JP S6226592Y2 JP 4511781 U JP4511781 U JP 4511781U JP 4511781 U JP4511781 U JP 4511781U JP S6226592 Y2 JPS6226592 Y2 JP S6226592Y2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- brake valve
- partition wall
- cylinders
- inertia effect
- 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
- 238000005192 partition Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Exhaust Silencers (AREA)
- Characterised By The Charging Evacuation (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
【考案の詳細な説明】
No.１−No.ｎのシリンダより成る第１群に属する
シリンダとNo.（ｎ＋１）−No.2nのシリンダより成
る第２群に属するシリンダとが交互に爆発するデ
イーゼル機関においては、第１群のシリンダより
の排気と第２群のシリンダよりの排気とを分離し
て流すと共に、排気を分離して流す流路の長さを
適当に選定するとき、流路の長さにより定まる所
定の回転速度において機関の容積効率を向上する
負圧が吸排気弁の開きのオーバーラツプ時に排気
弁の近傍に生じる。これは排気流路に生じる圧力
の脈動的変動によるもので排気慣性効果と呼ばれ
る。[Detailed description of the invention] The cylinders belonging to the first group consisting of cylinders No. 1 to No. n and the cylinders belonging to the second group consisting of cylinders No. (n+1) to No. 2n explode alternately. In a diesel engine, the exhaust gas from the first group of cylinders and the exhaust gas from the second group of cylinders are separated and flowed, and when the length of the flow path through which the exhaust gas is separated and flown is appropriately selected, the flow path At a predetermined rotational speed determined by the length of the exhaust valve, a negative pressure is created in the vicinity of the exhaust valve when the openings of the intake and exhaust valves overlap, which improves the volumetric efficiency of the engine. This is due to pulsating fluctuations in pressure that occur in the exhaust flow path and is called the exhaust inertia effect.
第１図は排気慣性効果を得るようにした６気筒
デイーゼル機関を示す図面で、この図において、
１はシリンダヘツド、２はシリンダブロツク、３
は第１群のシリンダとしてのNo.１−No.３のシリン
ダに属する第１の排気マニホールド、４は第２群
のシリンダとしてのNo.４−No.６のシリンダに属す
る第２の排気マニホールド、５，６は第１群のシ
リンダよりの排気と第２群のシリンダよりの排気
とを分離して流すための流路、７は流路５，６に
連なる排気管である。流路５，６は所期の排気慣
性効果を得るための長さ（この長さは可成り大き
い。）をもつ。 Figure 1 is a diagram showing a six-cylinder diesel engine designed to obtain an exhaust inertia effect, and in this diagram,
1 is the cylinder head, 2 is the cylinder block, 3
4 is the first exhaust manifold belonging to the cylinders No. 1 to No. 3 as the cylinders of the first group, and 4 is the second exhaust manifold belonging to the cylinders No. 4 to No. 6 as the cylinders of the second group. , 5 and 6 are passages for separating exhaust gas from the first group of cylinders and exhaust from the second group of cylinders, and 7 is an exhaust pipe connected to the passages 5 and 6. The flow paths 5 and 6 have a length (this length is quite large) to obtain the desired exhaust inertia effect.
本案の目的は第１図に示すもののように排気慣
性効果を得るようにした機関の場合に起るエギゾ
ーストブレーキバルブの設置についての問題点の
解決にある。ここにエギゾーストブレーキバルブ
と言うのは制動のために排気の流れを強く絞る弁
を意味する。第１図に示すものについて言えば、
エギゾーストブレーキバルブは、Ａ点に設ける
か、或いはB1点およびB2点に設けられることと
なるが、Ａ点に設ける場合には流路６，７が可成
り長いため制動効果が悪くなり、B1点およびB2
点に設ける場合には制動効果は従来のものと同様
になるが２個のエギゾーストバルブおよびそれら
の連動系を設けなければならないこととなつてし
まう。 The purpose of this invention is to solve the problem of installing an exhaust brake valve that occurs in an engine designed to obtain an exhaust inertia effect, such as the one shown in FIG. Here, the term exhaust brake valve refers to a valve that strongly restricts the flow of exhaust gas for braking. Regarding what is shown in Figure 1,
The exhaust brake valve will be installed at point A, or at point B1 and point B2 , but if installed at point A, the braking effect will be poor because the flow paths 6 and 7 are quite long. B 1 point and B 2
If the exhaust valve is provided at a point, the braking effect will be similar to that of the conventional one, but it will be necessary to provide two exhaust valves and an interlocking system for them.
本案は、エギゾーストブレーキをかけるときに
は排気慣性効果を得る必要はないと云うことに注
目しつつデイーゼル機関の排気系を第２図および
第３図に示す如く構成するもので、この図におい
て、１０はシリンダヘツド、１１はシリンダブロ
ツク、１２は単一の排気マニホールド、１３は排
気管、１４はエギゾーストブレーキバルブであ
る。第２図はエギゾーストブレーキバルブ１４が
排気慣性効果を得るのに寄与している状態を示
し、第３図はそれが本来の作用としての制動作用
を行つている状態を示す。これらの図において、
１５は排気マニホールド１２を排気管１３に連ね
る中間の管体で、排気を分離して流す隔壁１６を
内部にもつ。１７，１８は隔壁１６により分離さ
れた流路である。隔壁１６とエギゾーストバルブ
１４とはそれらが共働して排気慣性効果を得るた
めの排気流路の分離用仕切り壁を形成する。エギ
ゾーストブレーキバルブ１４が第３図に示す如く
回動されるとき（エギゾーストブレーキがかけら
れるとき）、機関は排気慣性効果がもたらされな
い状態となるが、制動時には排気慣性効果を得る
必要はないので、この点は問題とならない。な
お、エギゾーストブレーキバルブ１４は従来のも
のと同様の操作系により作動させられる。 In this proposal, the exhaust system of a diesel engine is constructed as shown in Figs. 2 and 3, while paying attention to the fact that it is not necessary to obtain an exhaust inertia effect when applying an exhaust brake. 11 is a cylinder block, 12 is a single exhaust manifold, 13 is an exhaust pipe, and 14 is an exhaust brake valve. FIG. 2 shows a state in which the exhaust brake valve 14 contributes to obtaining the exhaust inertia effect, and FIG. 3 shows a state in which the exhaust brake valve 14 performs its original braking action. In these figures,
Reference numeral 15 denotes an intermediate pipe body that connects the exhaust manifold 12 to the exhaust pipe 13, and has a partition wall 16 inside to separate and flow the exhaust gas. 17 and 18 are flow paths separated by a partition wall 16. The partition wall 16 and the exhaust valve 14 cooperate to form a partition wall for separating the exhaust flow path to obtain an exhaust inertia effect. When the exhaust brake valve 14 is rotated as shown in Figure 3 (when the exhaust brake is applied), the engine is in a state where no exhaust inertia effect is produced, but there is no need to obtain an exhaust inertia effect during braking. , this point is not a problem. Note that the exhaust brake valve 14 is operated by the same operating system as the conventional one.
以上において説明したように、本案は排気慣性
効果を得ることに関連して逢着するエギゾースト
ブレーキバルブについての問題点を簡単に解決す
るものである。 As described above, the present invention easily solves the problems associated with the exhaust brake valve related to obtaining the exhaust inertia effect.
第１図は排気慣性効果を得るようにしたデイー
ゼル機関においてエギゾーストブレーキバルブの
設置につき起る問題点の説明用図面、第２図およ
び第３図は本案による排気系の要部を状態を変え
て示す図面である。
１……シリンダヘツド、２……シリンダブロツ
ク、３……第１の排気マニホールド、４……第２
の排気マニホールド、５，６……流路、７……排
気管、１０……シリンダヘツド、１１……シリン
ダブロツク、１２……排気マニホールド、１３…
…排気管、１４……エギゾーストブレーキバル
ブ、１５……中間の管体、１６……隔壁、１７，
１８……流路。
Figure 1 is an explanatory diagram of the problems that occur when installing an exhaust brake valve in a diesel engine designed to obtain an exhaust inertia effect, and Figures 2 and 3 show the main parts of the exhaust system according to the present invention in different states. FIG. 1... Cylinder head, 2... Cylinder block, 3... First exhaust manifold, 4... Second
Exhaust manifold, 5, 6...flow path, 7...exhaust pipe, 10...cylinder head, 11...cylinder block, 12...exhaust manifold, 13...
...exhaust pipe, 14...exhaust brake valve, 15...middle pipe body, 16...bulkhead, 17,
18...Flow path.
Claims (1)
壁１６をもつ中間の管体１５を排気マニホールド
１２と排気管１３との間に介在させると共に排気
マニホールド１２上にエギゾーストブレーキバル
ブ１４を設け、上記の管体内の隔壁１６と排気マ
ニホールド１２上のエギゾーストブレーキバルブ
１４との共働により排気慣性効果を得るための排
気流路の分離用仕切り壁を形成させたことを特徴
とするデイーゼル機関の排気系。 An intermediate pipe body 15 having a partition wall 16 that separates the internal space into two flow paths 17 and 18 is interposed between the exhaust manifold 12 and the exhaust pipe 13, and an exhaust brake valve 14 is provided on the exhaust manifold 12. An exhaust system for a diesel engine characterized in that a partition wall for separating an exhaust flow path is formed in cooperation with a partition wall 16 in a pipe body and an exhaust brake valve 14 on an exhaust manifold 12 to obtain an exhaust inertia effect. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4511781U JPS6226592Y2 (en) | 1981-03-30 | 1981-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4511781U JPS6226592Y2 (en) | 1981-03-30 | 1981-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57157743U JPS57157743U (en) | 1982-10-04 |
| JPS6226592Y2 true JPS6226592Y2 (en) | 1987-07-08 |
Family
ID=29842015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4511781U Expired JPS6226592Y2 (en) | 1981-03-30 | 1981-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6226592Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2131128B (en) * | 1982-10-23 | 1985-09-25 | Cummins Engine Co Inc | Exhaust braking valve |
-
1981
- 1981-03-30 JP JP4511781U patent/JPS6226592Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57157743U (en) | 1982-10-04 |
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