JPS5882033A - Controller for operation of valve in engine - Google Patents
Controller for operation of valve in engineInfo
- Publication number
- JPS5882033A JPS5882033A JP17958581A JP17958581A JPS5882033A JP S5882033 A JPS5882033 A JP S5882033A JP 17958581 A JP17958581 A JP 17958581A JP 17958581 A JP17958581 A JP 17958581A JP S5882033 A JPS5882033 A JP S5882033A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- stopping means
- low temperature
- valve
- circuit
- 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
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
-
- 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
- F02B2275/18—DOHC [Double overhead camshaft]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D2013/0292—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation in the start-up phase, e.g. for warming-up cold engine or catalyst
-
- 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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
-
- 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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
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
Description
【発明の詳細な説明】
本発明は自動２輪車その他の車鉤用のエンジンにおける
＠排気弁の作動制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operation control device for an exhaust valve in an engine for a motorcycle or other vehicle.
本願出願人は、先にこの検装置として、エンジンの１個
のシリンダに少くとも２４トの吸気弁又は排気弁を般け
ると共に、ｔｔｘ２ｍの弁の一方に１その開閉作動を休
止してこれを閉じ位置とする油圧作動型の休止手段を備
え、該休止手段を該エンジンの運転状況に応じてその低
速域では作動自在とする式のものを提案したが、この場
合該エンジンの比較的低湿では、該休止手段を作動すべ
き圧油はその粘性が比較的高く−この状態で該休止手段
に作動と不作動とを繰返させるとき−その応答性が損わ
れ勝ちである不都合を惨う・
本発明はか＼る不都合のない装置を得ることをその目的
としたもので、エンジンの１個のシリンダに少くとも２
個の吸気弁又は排気弁を設けると共に該２個の弁の一方
に、その開閉作動を休止してこれをその閉じ位置とする
油圧作動型の休止手段を−備え１該体止手段を該エンジ
ンの運転状況に応じてその低速域では作動自在とする式
のものにおいて、該エンジンの比較的低温を検出して作
動する温度センサを備え、略センサの作動によれば該休
止手段はｆ１１１勤状塾に保たれるようにして成る。The applicant of this application first installed at least 24 tons of intake or exhaust valves in one cylinder of the engine as this inspection device, and at the same time, one of the valves of 2 meters (ttx) was installed by suspending its opening/closing operation. We have proposed a system that is equipped with a hydraulically actuated stop means that is in the closed position, and that can be operated freely in the low speed range depending on the operating conditions of the engine. The pressure oil that operates the stop means has a relatively high viscosity, and when the stop means is repeatedly activated and deactivated in this state, its responsiveness is likely to be impaired. The object of the invention is to obtain a device free from such inconveniences, in which at least two
one intake valve or an exhaust valve is provided, and one of the two valves is provided with a hydraulically actuated stop means for stopping the opening/closing operation of the two valves and bringing the valve into its closed position.1. The engine is of a type that can be operated freely in a low speed range depending on the operating condition of the engine, and is equipped with a temperature sensor that detects a relatively low temperature of the engine and operates, and according to the operation of the sensor, the stopping means They are kept at cram schools.
本発明実施の１例を別紙図面に付説明する。An example of implementing the present invention will be explained with reference to the attached drawings.
図面で（１）はエンジンのシリンダな示し、該シリンダ
（°１Ｊはそのｍ個に２個の吸気弁（２１（２１とその
他＠＆：２個の排気弁（３）（３）とを有する。各吸気
弁（２）は會ｅ上側のロッカアーム（４）を介してその
上側の吸気カム（５）により駆動されて開閉すると共に
各排気弁（３）は略同様にその上側のロッカアーム（６
）を介してその上側の排気カム（７）により駆動されて
開閉するようにした。In the drawing, (1) indicates a cylinder of the engine, and the cylinder (°1J) has two intake valves (21 (21) and other @&: two exhaust valves (3) (3). Each intake valve (2) is opened and closed by being driven by an intake cam (5) on the upper side via an upper rocker arm (4), and each exhaust valve (3) is driven by an upper rocker arm (6) in substantially the same way.
) and is driven by the upper exhaust cam (7) to open and close.
蒙宜個の吸気弁（２） （２）の一方、例えば図−で上
方の吸気弁（２）と、該２個の排気弁（３１（３１の一
方、例えばＦｊ！ＪｗＩで上方の排気弁（３）とはその
開閉作動を休止してこれを閉じ位置とする各休止手段（
８）（９）を備える〇
体止手＆ （８１は油圧作動蓋から成り、例えば第２Ｗ
Ｊに明示するように通電によれば閉じる電磁弁（・ａ）
で油路な開閉すべきもので、即ち流入口（ａ ｍ）を介
して圧油を導かれる作動シリンダ（８０）内を外部に連
通する油路（８ｄ）に介入されるもので、該シリンダ（
８０）は前記したロッカアーム（４）承する型式とし、
かくて駄弁（８＆）の作動ルを開弁によれば、該シリン
ダ（８ｏ）内は油圧を低下されて該ばね（８・）はその
強さを減少され、該ロッカアーム（４）はその支点（４
１）が下動自在となって不作動となり、これを換言すれ
ば駄弁（２）はその開閉作動を休止されたその閉じ位置
となるようにした◎休止手段（９）は同じく油圧作動型
から成り通電によれば閉じる電磁弁（９１）で油路な開
閉すべきもので略同様に構成される＠
両電磁弁（８＆）（９＆）はｊ＠３図に明示するように
該エンジンの低速域では開く制御回路（ｌ呻を介して電
源６υに連るリレａ４の接点（１２ａ）を介して駆電源
ａＵ＆：連るもので、かくて該回路Ｑｌの閉路によれば
通電されτ閉じるようにし、これを換言すれば両体止手
段（８１（９Ｖｉ不作動とな夛各弁１２１ （３）ｍ動
状態となるようにした。該制御回路Ｑｌは該エンジンの
絞り弁の開度に応動する５個の開度センサ（１３ｍ）（
１３ｂ）（１５ｏ）と、該エンジンの回転数に応動する
２個の回転数センサ（１４ａ）（１４ｂ）と１該エンジ
ンの吸気負圧に応動する２個の負圧センサ（１５ａ）（
ｆｌｂ）とから成り、該エンジンの高速域の所定の設定
條件においてもエンジン温度の低温、従って各休止手段
（８） （９）を作動すべき圧油温度の低温では該休止
手段（８） （９） を不作動に保つべきもので図示の
ものでは該エンジンの低温を検出して開くスイッチから
成る温度センサ＠ｅｔ備えこれを前記した制御回路Ｑ（
Ｉの接続回路にこれと直列に介入させる。更＆：ＦＩＪ
示のものではこれと直列に車速の低速では開くスイッチ
から成る車速センｔａ？）を備えられるようにした。One of the two intake valves (2) (2), for example, the upper intake valve (2) in the figure, and the two exhaust valves (31 (one of 31, for example, the upper exhaust valve in Fj!JwI) (3) means each stopping means (
8) (9) 〇 body stop & (81 consists of a hydraulically operated lid, for example, the second W
Solenoid valve that closes when energized as shown in J (a)
This means that the oil passage (8d), which communicates the inside of the operating cylinder (80) through which pressure oil is introduced through the inlet (am) with the outside, is inserted into the oil passage (8d).
80) is a type that supports the rocker arm (4) described above,
Thus, when the actuation lever of the loose valve (8&) is opened, the oil pressure inside the cylinder (8o) is reduced, the spring (8.) is reduced in strength, and the rocker arm (4) is moved from its fulcrum. (4
1) becomes freely movable downward and becomes inoperative, in other words, the valve (2) is in its closed position where its opening/closing operation is suspended.◎The stopping means (9) is also of the hydraulically operated type. The solenoid valve (91) closes when energized and is configured to open and close the oil passage, and both solenoid valves (8&) and (9&) are configured in the low speed range of the engine as shown in Figure j@3. Then, the opening control circuit (1 connected to the power source 6υ via the contact (12a) of the relay a4 to the driving power source aU&: is connected to the power source 6υ through the circuit, and thus, according to the closing of the circuit Ql, it is energized and τ is closed. In other words, the control circuit Ql responds to the opening degree of the throttle valve of the engine. 5 opening sensors (13m) (
13b) (15o), two rotation speed sensors (14a) (14b) that respond to the rotation speed of the engine, and two negative pressure sensors (15a) (1) that respond to the intake negative pressure of the engine.
Even under predetermined setting conditions in the high-speed range of the engine, when the engine temperature is low, and therefore the pressure oil temperature at which each of the stop means (8) and (9) should be activated is low, the stop means (8) (9) is activated. 9) The one shown in the figure is equipped with a temperature sensor consisting of a switch that detects the low temperature of the engine and opens it, which is connected to the above-mentioned control circuit Q (
The connection circuit of I intervenes in series with this. Sara&:FIJ
In the one shown, there is a vehicle speed center switch in series with this, which consists of a switch that opens at low vehicle speeds. ).
その作動を説明するに、エンジンの低温−従って作動圧
油の低温に際しては該温度センｖａＧがこれを検出して
該センサＱｅを構成するスイッチが開き、かくて各休止
手段（８）（９１を構成する各電磁弁（ｆｌｅａ）（？
ａ）は制御ｉｌｌ１ｇｉ路顛の閉路（よるも通電さ れ
・揄、鵠状態となるようにした。これを換言すれば、低
温で油が高粘性のときは該エンジンが高速域の設定條件
下に存、する場合も各休止手段（８３（９３は作動に保
たれ、従って各弁（２）（３）は休止したま１０状態と
なる よ うにした。To explain its operation, when the temperature of the engine is low, and therefore the hydraulic oil is low, the temperature sensor vaG detects this and the switch constituting the sensor Qe opens, thus causing each of the deactivation means (8) (91) to open. Each of the constituent solenoid valves (flea) (?
In a), the control ill1gi path is closed (even if the current is energized), so that it is in a state of control. In other words, when the oil is at low temperature and has high viscosity, the engine is under the setting conditions of the high speed range. Even when the valve is in operation, each stop means (83 (93) is kept in operation, so that the valves (2) and (3) are in the 10 state while being stopped.
このように本発明によるときはエンジンの低温に際して
はエンジンが高速域の設定條件下に至っても休止手段は
作動に保たれるもので、かくて該休止手段はこれを作動
すべき圧油が低温で高粘性の状態で作動と不作動とを繰
返す場合（生じ易い応答性の不良を無くし得られ１該体
止手段はそれによる衝撃をなくして耐久性を向上する効
果を有する。As described above, according to the present invention, when the engine is at a low temperature, the stop means is kept in operation even when the engine reaches the set conditions in the high speed range, and the stop means is maintained in operation when the pressure oil to be operated is at a low temperature. When activation and non-activation are repeated in a highly viscous state, the poor response that tends to occur can be eliminated.1 The body retaining means has the effect of eliminating the impact caused by it and improving durability.
５３１図は本発明装置の１例の斜面図、第２図はその一
部の被断Ｑ１！ｌ１図、第５図はその制御回路の＃ｊ図
である０
（１）・・・・・・シリンダ ｔ２Ｊ ｆ２）・・
・吸気弁（３）（３）・・・排気弁 （８）（９１
・・・休止手段鱒・・・・・・制御囲路 Ｑ８・
・・・・・温度センサ１栖 り々Figure 531 is a perspective view of one example of the device of the present invention, and Figure 2 is a partial cut Q1! Figure l1 and Figure 5 are #j diagrams of the control circuit.
・Intake valve (3) (3)...Exhaust valve (8) (91
... Pause means trout ... Control enclosure Q8.
...Temperature sensor 1 Riri
Claims (1)
排気弁を設けると共に該２個の弁の一方に、その−閉作
動を休止してこれをその閉じ位置とする油圧作動型の休
止手段を備え、該休止手段を該エンジンの運転状況に応
じてその低速域では作動自在とする式のものにおいて、
該エンジンの比較的低温を検出して作動する温度センサ
を備え、該センナの作動によれば該休止手段社・；作動
状態に保たれるようにして成るエンジンにおける弁作動
制御装置At least two intake or exhaust valves are provided in one cylinder of the engine, and one of the two valves is provided with a hydraulically actuated suspension means for suspending the closing operation of the valve and bringing the valve into its closed position. and in which the stopping means is operable in the low speed range depending on the operating condition of the engine,
A valve operation control device for an engine, comprising a temperature sensor that operates by detecting a relatively low temperature of the engine, and is maintained in the operating state according to the operation of the sensor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17958581A JPS5882033A (en) | 1981-11-11 | 1981-11-11 | Controller for operation of valve in engine |
| US06/440,528 US4480617A (en) | 1981-11-11 | 1982-11-10 | Valve operation control apparatus in internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17958581A JPS5882033A (en) | 1981-11-11 | 1981-11-11 | Controller for operation of valve in engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5882033A true JPS5882033A (en) | 1983-05-17 |
Family
ID=16068293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17958581A Pending JPS5882033A (en) | 1981-11-11 | 1981-11-11 | Controller for operation of valve in engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5882033A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001115864A (en) * | 1999-10-18 | 2001-04-24 | Nissan Motor Co Ltd | Control device for electromagnetically drive type exhaust valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5656943A (en) * | 1979-10-17 | 1981-05-19 | Mitsubishi Motors Corp | Engine having mechanism for stopping operation of valve |
| JPS5799239A (en) * | 1980-12-10 | 1982-06-19 | Mitsubishi Motors Corp | Engine with controlled number of working cylinders |
-
1981
- 1981-11-11 JP JP17958581A patent/JPS5882033A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5656943A (en) * | 1979-10-17 | 1981-05-19 | Mitsubishi Motors Corp | Engine having mechanism for stopping operation of valve |
| JPS5799239A (en) * | 1980-12-10 | 1982-06-19 | Mitsubishi Motors Corp | Engine with controlled number of working cylinders |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001115864A (en) * | 1999-10-18 | 2001-04-24 | Nissan Motor Co Ltd | Control device for electromagnetically drive type exhaust valve |
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