JPS5853610A - Valve device in engine - Google Patents
Valve device in engineInfo
- Publication number
- JPS5853610A JPS5853610A JP14950581A JP14950581A JPS5853610A JP S5853610 A JPS5853610 A JP S5853610A JP 14950581 A JP14950581 A JP 14950581A JP 14950581 A JP14950581 A JP 14950581A JP S5853610 A JPS5853610 A JP S5853610A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- cylinder
- air
- cylinders
- pipes
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明は、多シリンダエンジンの動弁装置に関する。[Detailed description of the invention] The present invention relates to a valve train for a multi-cylinder engine.
従来の多シリンダエンジンでは各シリンダへの吸気管や
排気管等の送気管の寸法形状がシリンダごとに相違し、
各送気管の流体抵抗が異なるにもかかわらず、すべての
シリンダに共通のパルプター １ −
イミングを用いているため、吸入、排出流体量が各シリ
ンダごとに違って、各シリンダごとの出力がまちまちで
エンジンの性能を低下させていた。In conventional multi-cylinder engines, the size and shape of the air pipes such as intake pipes and exhaust pipes to each cylinder differ from cylinder to cylinder.
Although the fluid resistance of each air pipe is different, since the same pulptor timing is used for all cylinders, the intake and discharge fluid volumes are different for each cylinder, and the output of each cylinder is different. It was reducing engine performance.
本発明は前記の欠点に対処し、各々のシリンダごとの出
力を等しくしてエンジン全体としての容積効率を大きく
してエンジンの性能の向上を図ることを目的とするもの
である。SUMMARY OF THE INVENTION The present invention addresses the above-mentioned drawbacks and aims to improve engine performance by equalizing the output of each cylinder and increasing the volumetric efficiency of the engine as a whole.
図は本発明による４気筒エンジンの実施例である。シリ
ンダ１ａ、１ｂ、１ｃ、Ｉｄにはクリーナ２からのびる
吸気管である送気管３ａ 、 ３ｂ 。The figure shows an embodiment of a four-cylinder engine according to the present invention. Air supply pipes 3a and 3b which are intake pipes extending from the cleaner 2 are provided in the cylinders 1a, 1b, 1c and Id.
３ｃ、３ｄが連結してあり、シリンダ１ａ、１ｂ。3c and 3d are connected, and the cylinders 1a and 1b.
１ｃ、１ｄの入口にはそれぞれ吸入弁である動弁４ａ、
４ｂ、４ｃ、４ｄが配してあり作動装置となるカムシャ
フト５により駆動されるカム６ａ。At the inlets of 1c and 1d, there are valves 4a, which are suction valves, respectively.
4b, 4c, and 4d are arranged on the cam 6a, which is driven by a camshaft 5 serving as an actuating device.
５ｂ、６ｃ、５ｄに連動している。It is linked to 5b, 6c, and 5d.
次に本発明の実施例の作用を説明すると、空気と燃料の
混合気体は送気＠３８，３ｂ、３Ｃ。Next, the operation of the embodiment of the present invention will be explained. The mixed gas of air and fuel is supplied at 38, 3b, and 3C.
３ｄを経てカムシャフト５の回転によるカム５ａ。The cam 5a is rotated by the camshaft 5 via 3d.
６ｂ 、６ｃ 、６ｄの作用により動弁４ａ、４ｂ。The valves 4a and 4b are operated by the actions of 6b, 6c, and 6d.
４ｃ、４ｄが開閉運動することによりシリンダ内−２− に吸入されるがこの際、送気管３ａ、３ｂ、３ｃ。As 4c and 4d open and close, the inside of the cylinder -2- At this time, the air is inhaled into the air pipes 3a, 3b, and 3c.
３ｄのエアークリーナー２の出口からシリンダｉａ、
１ｂ、ｌｃ、ｌｄまでの長さ及び内径等を各々等しくす
ることは不可能であるので流体に対する管内抵抗は送気
管３ａ、３’ｂ、３ｃ、３ｄごとに興なるパルプタイミ
ングやバルブリフトを動弁４ａ、４ｂ、４ｃ、４ｄの各
々について食えて動弁４ａ 、 ４ｂ 、 ４ｃ 、
４ｄ ノー回ｆ）ＷＭ閉、即チエンジンの運転１サイク
ルあたりの吸気量を等しくしである。パルプタイミング
やバルブリフトの調節は送気管３ａ 、３ｂ 、３ｃ
、３ｄの形状に基づいてカム６ａ、６ｂ、６ｃ、６ｄの
カムプロウィルやカム位相を設計することにより行ない
、カムシャフト５が回転すると動弁３ａ 、 ３ｂ 、
３ｃ 。From the outlet of air cleaner 2 in 3d to cylinder ia,
Since it is impossible to make the lengths and inner diameters of the air pipes 1b, lc, and ld equal, the internal resistance to fluid changes the pulp timing and valve lift that occur for each air pipe 3a, 3'b, 3c, and 3d. For each of the valves 4a, 4b, 4c, 4d, the valve train 4a, 4b, 4c,
4d No times f) WM closed, that is, the intake air amount per cycle of engine operation is equal. Adjustment of pulp timing and valve lift is done using air pipes 3a, 3b, and 3c.
, 3d by designing the cam profile and cam phase of the cams 6a, 6b, 6c, and 6d, and when the camshaft 5 rotates, the valves 3a, 3b,
3c.
３ｄのパルプタイミングやバルブリフトはそれぞれ違う
が、−回の開閉あたりシリンダ１ａ、１ｂ。The pulp timing and valve lift of 3d are different, but cylinders 1a and 1b per opening/closing of - times.
１ｃ、１ｄには等しい量の混合気体が吸入されシリンダ
１ａ、１ｂ、１ｃ、ｌｄごとの燃焼は等しい状態で行な
われる。Equal amounts of mixed gas are taken into cylinders 1c and 1d, and combustion is performed in the same manner in cylinders 1a, 1b, 1c, and ld.
本発明は、以上説明したように多シリンダエン−３−
ジンの動弁とカム等による作動装置を調節して各シリン
ダの吸入空気曇を等しくすることによって、各シリンダ
の出力を等しくして最も好ましい運転状態にすることに
よりエンジン全体としての体積効率をあげる効果がある
。As explained above, the present invention adjusts the actuating device such as the valve train and cam of a multi-cylinder engine to equalize the intake air fog of each cylinder, thereby making the output of each cylinder equal and achieving the maximum output. Setting the engine to a favorable operating state has the effect of increasing the volumetric efficiency of the engine as a whole.
なお、本発明の動弁として排出弁、送気管として排気管
を対象とすることもでき、作動装置としてはタペットや
ロッカアームも利用できる。Note that a discharge valve can be used as the valve train of the present invention, an exhaust pipe can be used as the air supply pipe, and a tappet or a rocker arm can also be used as the actuating device.
図は本発明による実施例の概略図である。
ｌａ、１ｂ、Ｉｃ、ｌｄ−シリンダ、２ ・Ｉ ７クリ
ーナ、３ａ、３ｂ、３ｃ、３ｄ・・・送気管、４ａ、４
ｂ、４ｃ、４ｄ・・・動弁、５・・・カムシャフト、５
ａ、６ｂ、６ｃ、６ｄ・・・カム。
特許出願人
日 野 自動車工業 株式会社
−４−The figure is a schematic diagram of an embodiment according to the invention. la, 1b, Ic, ld-cylinder, 2 ・I 7 cleaner, 3a, 3b, 3c, 3d... air pipe, 4a, 4
b, 4c, 4d...Valve train, 5...Camshaft, 5
a, 6b, 6c, 6d...cam. Patent applicant Hino Jidosha Kogyo Co., Ltd. -4-
Claims (1)
気管３ａ、３ｂ、３ｃ、３ｄを連結したエンジンにおい
て、前記シリンダ１ａ、１ｂ、１ｃ１ｄに配した動弁４
ａ、４ｂ、４ｃ、４ｄを前記各送気管３ａ、３ｂ、３ｃ
、３ｄのエンジン１サイクルあたりの流体流−が等しく
なるようにその作動状態を決定して作動装Ｍ５，６ａ
、６ｂ 。 ５ｃ、５ｄに連動して設けたことを特徴とする動弁装置
１．。[Scope of Claims] In an engine in which a plurality of cylinders 1a, 1b, 10.1dk: air pipes 3a, 3b, 3c, 3d are connected, the valve train 4 disposed in the cylinders 1a, 1b, 1c1d.
a, 4b, 4c, 4d to each of the air pipes 3a, 3b, 3c.
, 3d, the operating state is determined so that the fluid flow per engine cycle is equal, and the operating equipment M5, 6a is
, 6b. 1. Valve operating device characterized in that it is provided in conjunction with 5c and 5d. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14950581A JPS5853610A (en) | 1981-09-24 | 1981-09-24 | Valve device in engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14950581A JPS5853610A (en) | 1981-09-24 | 1981-09-24 | Valve device in engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5853610A true JPS5853610A (en) | 1983-03-30 |
Family
ID=15476607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14950581A Pending JPS5853610A (en) | 1981-09-24 | 1981-09-24 | Valve device in engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853610A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63193705U (en) * | 1987-05-30 | 1988-12-13 | ||
| JPH06146817A (en) * | 1992-10-30 | 1994-05-27 | Mitsubishi Motors Corp | Valve system for v-shaped engine |
-
1981
- 1981-09-24 JP JP14950581A patent/JPS5853610A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63193705U (en) * | 1987-05-30 | 1988-12-13 | ||
| JPH06146817A (en) * | 1992-10-30 | 1994-05-27 | Mitsubishi Motors Corp | Valve system for v-shaped engine |
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