JPS6121808U - Intake system for two-valve internal combustion engine - Google Patents
Intake system for two-valve internal combustion engineInfo
- Publication number
- JPS6121808U JPS6121808U JP10647284U JP10647284U JPS6121808U JP S6121808 U JPS6121808 U JP S6121808U JP 10647284 U JP10647284 U JP 10647284U JP 10647284 U JP10647284 U JP 10647284U JP S6121808 U JPS6121808 U JP S6121808U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- intake
- main
- intake valve
- opening
- 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
Landscapes
- Valve Device For Special Equipments (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve-Gear Or Valve Arrangements (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
第１図は本考案の１実施例を示す概略構成図、第２図は
同上実施例の回転カムの位相制御手段を示す縦断拡大図
、第３図は同上位相制御手段におけるスライダとカムシ
ャフトとの結合関係を示す斜視図、第４図は前記実施例
の主・副吸気弁の開閉弁特性と位相制御例を示すグラフ
、第５図は本実施例と従来例との体積効率比較を示すグ
ラフ、第６図は吸気装置の第１従来例を示す横断面図、
第７図は同上従来例の吸・排気弁の開弁特性を示すグラ
フ、第８図は吸気装置の第２従来例を示す吸・排気弁の
開弁特性を示すグラフであり、上記第４図、第７図、第
８図におけるＡは吸気弁の開弁期間を示すグラフであり
、Ｂは吸・排気弁のカムリフト特性を示すグラフである
。
第９図は吸気弁開時期の及ぼす体積効率特性を示すグラ
フ、第１０図は吸気弁閉時期の及ぼす体積効率特性を示
すグラフである。
１０・・・内燃機関、１１・・・気筒、１２・・・主吸
気弁、１３・・・副吸気弁、１６・・・主吸気通路、１
７・・・副吸気通路、１８・・・遮断弁、２２・・・ア
クチュエータ、２３．５７・・・電磁弁、２５・・・回
転センサ、２６・・・制御装置、３１．３２・・・回転
カム、４１・・・油圧アクチュエータ（位相制御手段）
、ｍ１・・・主吸気弁の低速回転側位相を示すカムリフ
ト曲線、ｍ２・・・主吸気弁の高速回転側位相を示すカ
ムリフト曲線、Ｓ２・・・副吸気弁の高速回転側位相を
示すカムリフト曲線。Fig. 1 is a schematic configuration diagram showing one embodiment of the present invention, Fig. 2 is an enlarged vertical view showing the phase control means of the rotating cam of the above embodiment, and Fig. 3 shows the slider and camshaft in the phase control means of the above embodiment. FIG. 4 is a graph showing the opening/closing valve characteristics and phase control examples of the main and sub-intake valves of the above embodiment, and FIG. 5 shows a comparison of volumetric efficiency between this embodiment and a conventional example. Graph, FIG. 6 is a cross-sectional view showing the first conventional example of the intake device,
FIG. 7 is a graph showing the opening characteristics of the intake/exhaust valves of the conventional example same as above, and FIG. 8 is a graph showing the opening characteristics of the intake/exhaust valves showing the second conventional example of the intake system. 7 and 8, A is a graph showing the opening period of the intake valve, and B is a graph showing the cam lift characteristics of the intake and exhaust valves. FIG. 9 is a graph showing volumetric efficiency characteristics affected by intake valve opening timing, and FIG. 10 is a graph showing volumetric efficiency characteristics affected by intake valve closing timing. DESCRIPTION OF SYMBOLS 10... Internal combustion engine, 11... Cylinder, 12... Main intake valve, 13... Sub-intake valve, 16... Main intake passage, 1
7... Sub-intake passage, 18... Shutoff valve, 22... Actuator, 23.57... Solenoid valve, 25... Rotation sensor, 26... Control device, 31.32... Rotating cam, 41...hydraulic actuator (phase control means)
, m1... Cam lift curve showing the phase on the low speed rotation side of the main intake valve, m2... Cam lift curve showing the phase on the high speed rotation side of the main intake valve, S2... Cam lift showing the phase on the high speed rotation side of the auxiliary intake valve curve.
Claims (1)
て気簡に連通ずる主吸気通路と、前記副吸気弁及び遮断
弁を介して気筒に連通ずる副吸気通路と、を備えた吸気
２弁式内燃機関において、主吸気弁を副吸気弁に対して
開弁時期を太きく遅らせ閉弁時期を同一若しくは小さく
ずらすように開閉する主吸気弁開閉用回転カム及び副吸
気弁開閉用回転カムと、これら回転カムの位相を機関回
転速度に応じて進遅制御する位相制御手段と、前記遮断
弁を機関回転速度に応じて開閉制御する駆動手段と、を
備えたことを特徴とする吸気２弁式内燃機関の吸気装置
。One cylinder is provided with two main and auxiliary intake valves, a main intake passage that communicates easily through the main intake valve, and a auxiliary intake passage that communicates with the cylinder via the auxiliary intake valve and the cutoff valve. A rotary cam for opening and closing the main intake valve and an auxiliary intake valve that open and close the main intake valve so that the opening timing of the main intake valve is greatly delayed and the valve closing timing is the same or slightly shifted relative to the auxiliary intake valve in a two-valve intake internal combustion engine. The present invention is characterized by comprising rotating cams for opening/closing, phase control means for controlling the phase of these rotating cams according to the engine rotational speed, and driving means for controlling opening and closing of the cutoff valve according to the engine rotational speed. An intake system for a two-valve internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10647284U JPS6121808U (en) | 1984-07-16 | 1984-07-16 | Intake system for two-valve internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10647284U JPS6121808U (en) | 1984-07-16 | 1984-07-16 | Intake system for two-valve internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6121808U true JPS6121808U (en) | 1986-02-08 |
Family
ID=30665760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10647284U Pending JPS6121808U (en) | 1984-07-16 | 1984-07-16 | Intake system for two-valve internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6121808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03117604A (en) * | 1989-09-29 | 1991-05-20 | Aisin Seiki Co Ltd | Valve timing control device |
-
1984
- 1984-07-16 JP JP10647284U patent/JPS6121808U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03117604A (en) * | 1989-09-29 | 1991-05-20 | Aisin Seiki Co Ltd | Valve timing control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6121808U (en) | Intake system for two-valve internal combustion engine | |
| JPS61123831U (en) | ||
| JPS6087308U (en) | Valve system for SOHC type 4-valve internal combustion engine | |
| JPS5949706U (en) | Internal combustion engine camshaft bearing device | |
| JPS58146010U (en) | Internal combustion engine valve train | |
| JPS6121831U (en) | Intake system for two-valve internal combustion engine | |
| JPH042780B2 (en) | ||
| JPS5934007U (en) | Valves for turbocharged diesel engines | |
| JPS6090507U (en) | Variable valve opening/closing timing device for double overhead camshaft engine | |
| JPS59190908U (en) | Internal combustion engine valve drive device | |
| JPH0433391Y2 (en) | ||
| JPH0544528B2 (en) | ||
| JPS6119606U (en) | Valve gear for compression ignition internal combustion engines | |
| JPS60150407A (en) | Engine valve timing controlling device | |
| JPS59107908U (en) | Internal combustion engine valve operation switching device | |
| JPS6314814U (en) | ||
| JPS5941639U (en) | engine structure | |
| JPS6137424U (en) | Intake passage device for multi-cylinder internal combustion engine | |
| JPS6088013U (en) | Internal combustion engine valve operation switching device | |
| JPS59110344U (en) | Valve stop mechanism for internal combustion engine with cylinder number control | |
| JPS62116106U (en) | ||
| JPH02105537U (en) | ||
| JPS60125304U (en) | Variable opening/closing timing device for intake and exhaust valves in 4-stroke engines | |
| JPS60137143U (en) | Engine brake booster | |
| JPS60195913U (en) | Multi-intake valve internal combustion engine |