JPS5844237A - Valve operation controller for engine - Google Patents
Valve operation controller for engineInfo
- Publication number
- JPS5844237A JPS5844237A JP56141715A JP14171581A JPS5844237A JP S5844237 A JPS5844237 A JP S5844237A JP 56141715 A JP56141715 A JP 56141715A JP 14171581 A JP14171581 A JP 14171581A JP S5844237 A JPS5844237 A JP S5844237A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- control means
- intake
- valve
- valves
- 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
- 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
- F02D13/0203—Variable control of intake and exhaust valves
-
- 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
- F02D13/0257—Independent control of two or more intake or exhaust valves respectively, i.e. one of two intake valves remains closed or is opened partially while the other is fully opened
-
- 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
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into 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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- 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
- 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
-
- 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
- F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Description
【発明の詳細な説明】
本発明は主として車両用の高連掴の4サイクルエンジン
における弁作動の制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a control device for valve operation in a four-stroke engine with a high-speed clutch for a vehicle.
・本願出願人は先にこの種エンジンにおいて1個のシリ
ンダに少くとも2個の吸気弁又は排気弁を備え、該2個
の弁の一方に該エンジンの運転状況に応じて作動してこ
れを休止状態とする制御手段を備え、かくて該エンジン
の低速乃至アイドル領域においてその出力特性を向上さ
せる式のものを提案したが1この場合線制御手段を該エ
ンジンの回転数にのみ応動させる型式即ち予定の比較的
低い回転数において作動させる型式とするものでは必ず
しも良好な出力特性を得られない平部・合を伴う・即ち
該制御手段を作動すべき回転数は該エンジンの負荷に応
じて異り、これを換言すれば設定回転数はエンジンの一
方に適合して設定したときその他方には適合−せず所定
の出力特性の向上が得られない不都合を伴う。- The applicant of this application has previously provided this type of engine with at least two intake valves or exhaust valves in one cylinder, and one of the two valves is actuated according to the operating conditions of the engine. A method has been proposed which is equipped with a control means for placing the engine in a rest state and thus improves the output characteristics of the engine in the low speed or idle range. If the engine is operated at a relatively low planned engine speed, it may not necessarily be possible to obtain good output characteristics.In other words, the engine speed at which the control means should be operated varies depending on the load of the engine. In other words, when the set rotation speed is set to suit one side of the engine, it is not matched to the other, resulting in the inconvenience that a predetermined improvement in output characteristics cannot be obtained.
本発明はか\る不都合のない装置を得ることをその目的
としたもので一エンジンの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
に該エンジンの運転状況に応じて作動してこれを休止状
態に切換える制御手段を備える式のものにおいて1該制
御手段を該エンジンの吸入空気量に応動する型式とする
ことを特徴とする。The object of the present invention is to obtain a device which does not have such disadvantages, and which provides at least two cylinders per cylinder of one engine.
In the case of a type in which one intake valve or an exhaust valve is provided, and one of the two valves is provided with a control means that is activated depending on the operating condition of the engine to switch it to a rest state, the control means is connected to the engine. It is characterized by being a type that responds to the amount of intake air.
本発明の実施例を別紙図面に付説明する。Embodiments of the present invention will be described with reference to attached drawings.
図面で(1)はエンジンの1個のシリンダを示し、該シ
リンダ(1)に−側の2個の吸気弁(2)(2)と他側
の2個の排気弁(3)(3)とを備え1該吸気弁+2)
(2)の一方、例えば図面で上方の1個に、これを休止
状態とすべき制御手段(4)と1該2個の排気弁(3)
(3)の一方、例えば図面で上方の1個に、これを休止
状態とすべき制御手段(5)とを備え1か(て両手段(
4) (51の作動によれば該エンジンは該吸気弁(2
) +21の他方と、該排気弁(3)(3)の他方との
みが開閉作動する状態となるようにした。In the drawing, (1) indicates one cylinder of the engine, and the cylinder (1) has two intake valves (2) (2) on the negative side and two exhaust valves (3) (3) on the other side. and (1) the intake valve +2)
One of (2), for example, the upper one in the drawing, has a control means (4) that is to be in a rest state and two exhaust valves (3).
One of (3), for example, the upper one in the drawing, is provided with a control means (5) to put it in a dormant state.
4) (According to the operation of 51, the engine
) Only the other one of the exhaust valves (3) and the other of the exhaust valves (3) (3) are opened and closed.
該制御手段(4)は例えば第2図に明示するように該吸
気弁(2)とその上側の吸気カム(6)との間に介入さ
れるロッカアーム(7)の根部の支点(8)の下側の制
御シリンダから成り、該シリンダ(4)は該支点(8)
の下側のばね(9)のばね強さを該弁(2)に作用する
ばね特に対し強弱に加減して該ロッカアーム(7)を作
動と不作動とに切換える型式から成るもので1更に説明
すれば、該シリンダ(4)は該ばね(9)を支承するそ
の下側のピストンaυとその下側の油圧室aaとを備え
、該油圧室aりは逆止弁a3を介して油圧通路a◆と、
電磁作動の制御弁a$を介して排出通路aeとに連り〜
かくて該制御弁a!19が制御信号を作用されて開いた
とき該油圧室a2内は圧油を排出されて低圧となり1そ
の上側のばね(9)はばね強さを減少されて該ロッカア
ーム(7)を不作動とすべく作用するようにした。該制
御手段(5)も略同様であり、排気弁(3)とその上側
の排気カム鰭との間に介入されるpツカアーム舖の根部
の支点Uの下側の制御シリンダから成り、同じく前記し
た制御信号を作用されて該アームα・を不作動とすべく
作用する。The control means (4) is controlled, for example, by a fulcrum (8) at the root of a rocker arm (7) interposed between the intake valve (2) and the intake cam (6) above it, as clearly shown in FIG. It consists of a lower control cylinder, which cylinder (4) is connected to the fulcrum (8).
The rocker arm (7) is switched between activation and deactivation by adjusting the spring strength of the lower spring (9) with respect to the spring force acting on the valve (2). Then, the cylinder (4) includes a piston aυ on the lower side supporting the spring (9) and a hydraulic chamber aa on the lower side, and the hydraulic chamber a is connected to the hydraulic passage through the check valve a3. a◆ and
Connected to the discharge passage ae through the electromagnetically operated control valve a$
Thus, the control valve a! When 19 is opened by the action of a control signal, the pressure oil in the hydraulic chamber a2 is discharged and the pressure becomes low.1 The spring (9) above the spring (9) has its spring strength reduced to disable the rocker arm (7). I tried to make it work as well as possible. The control means (5) is also substantially the same, and consists of a control cylinder below the fulcrum U of the root of the P-shape arm interposed between the exhaust valve (3) and the exhaust cam fin above it; The arm .alpha.
以上は先に提案したものと特に興ることなく、更に制御
手段(4)(5)はその一方を省略して吸気弁側と排気
弁側との一方にのみ一部休止を与え得られるようにし1
或は更に吸気弁(2)と排気弁(3)との何れか一方或
は両方を3個以上とする痔が考えられ、これも先に提案
したものと特に員らないが、本発明によれば前記した制
御手段(4)(53を該エンジンの吸入空気量に応動す
る型式とする。更に詳細には例えば第2図示の通りであ
り、該吸入空気量は該エンジンの吸気通路(2&)に介
入すれるエア70−メーター(至)により検出させ〜そ
の検出信号を前記した制御信号として使用する。第5図
はそ°の変形例を示すもので、この場合該吸入空気量は
該エンジンの吸気通路(2&)に介入される絞り弁CI
)の開度な検出する開度センサのの信号と該エンジンの
クランク軸(2b)に用、プ□ 。The above is not particularly different from what was proposed earlier, and furthermore, one of the control means (4) and (5) can be omitted and only one of the intake valve side and the exhaust valve side can be partially stopped. Nishi 1
Alternatively, a hemorrhoid in which one or both of the intake valve (2) and the exhaust valve (3) is three or more can be considered, and although this is not particularly related to the previously proposed hemorrhoid, it is also included in the present invention. Accordingly, the above-mentioned control means (4) (53) are of a type that responds to the intake air amount of the engine.More details are as shown in the second figure, for example, and the intake air amount is controlled by the intake passage (2 & 53) of the engine. ) is detected by the air 70 meter (to) and its detection signal is used as the control signal described above. Fig. 5 shows a modification of this, in which case the intake air amount is Throttle valve CI intervened in the engine intake passage (2&)
) is used to detect the opening degree of the opening sensor and the crankshaft (2b) of the engine.
意される回転数センナ@の出′力信号七の両者により検
出されるように。したO
その作動を説明するに、エンジンが漸次減速されてその
吸入空気量が予定の比較的小量となったとき、これがエ
アフ四−メーター(2)により、或は開度センサのと回
転数センナ(至)とにより検出され、制御手段(4)(
5)が千の信号を作用されて作動となる。この場合の出
力特性の変化は例えば第4図の通りである。即ち図中1
は制御手段(4)(5)が作動しない場合、bは作動す
る場合の出力特性曲線を示し、両者a、bの交点O以下
の回転数において制御手段(4)(5)が作動して出力
特性が向上される。更に、エンジンの部分負荷では図示
しないが両者1.′bの交点Oは興る回転数となり出力
特性が同様に改善される。as detected by both the output signal 7 of the desired rotational speed sensor @. To explain its operation, when the engine is gradually decelerated and the intake air amount becomes a relatively small amount as planned, this is detected by the air valve meter (2) or by the rotational speed of the opening sensor. Detected by the control means (4) (
5) is activated by a thousand signals. Changes in the output characteristics in this case are shown in FIG. 4, for example. In other words, 1 in the figure
indicates the output characteristic curve when the control means (4) and (5) do not operate, and b indicates the output characteristic curve when the control means (4) and (5) operate, and the control means (4) and (5) operate at the rotation speed below the intersection point O of both a and b. Output characteristics are improved. Furthermore, at partial load of the engine, although not shown in the figure, both 1. The intersection point O of 'b' becomes the increasing rotational speed, and the output characteristics are similarly improved.
このように本発明によるときは制御手段をエンジンの吸
入空気量に応動する型式とするもので、工、ンジンの負
荷に応じて異る回転数で作動され、常に一定の回転数で
作動する式のものにおける前記した不都合がない効果を
有する。In this way, according to the present invention, the control means is of a type that responds to the intake air amount of the engine, and is operated at different rotational speeds depending on the load of the engine, and always operates at a constant rotational speed. It has an effect that does not have the above-mentioned disadvantages.
第1図は本発明装置の1例の一部の斜面図、第2図はそ
の要部の説明線図、第5wJはその変形例の線図、第4
図はその作動特性線図である。
(1)・・・・・・シリンダ
(2)(2)−・吸気弁
(3)(31・・・排気弁
(41(5)・・・制御手段
(1)・・・・・・エア7a−メーター62名
第4図FIG. 1 is a partial perspective view of an example of the device of the present invention, FIG. 2 is an explanatory diagram of the main parts thereof, No. 5 wJ is a diagram of a modification thereof, and No. 4
The figure is a diagram of its operating characteristics. (1)... Cylinder (2) (2) - Intake valve (3) (31... Exhaust valve (41 (5)... Control means (1)... Air 7a-Meter 62 people Figure 4
Claims (1)
又は排気弁を設けると共に1M!2個の弁の一方に該エ
ンジンの運転状況に応じて作動して、これを休止状態に
切換える制御手・段□を備える1式のものにおいて、該
制御手段を該エンジンの吸入空気量に応動する型式とす
ることを特徴とするエンジンにおける弁作動制御装置 2 該制御手段を該エンジンの吸気通路内のエア70−
メータに応動さ′せる特許請求の範囲第1項所載のエン
ジンにおける弁作動制御装置 五 該制御手段を該エンジンの回転数と絞り弁開度とに
応動させる特許請求の範囲第1項所載のエンジンにおけ
る弁作動−脚装置[Claims] t At least two intake valves or exhaust valves are provided in one cylinder of Enkun, and 1M! A set of control means/means □ which operates one of the two valves according to the operating condition of the engine and switches it to a rest state, the control means being actuated in response to the intake air amount of the engine. Valve operation control device 2 for an engine, characterized in that the control means is of a type that controls air 70 in the intake passage of the engine.
A valve operation control device for an engine as set forth in claim 1 that is responsive to a meter.5 A valve operation control device as set forth in claim 1 that causes the control means to respond to the engine speed and throttle valve opening. Valve actuation in the engine - landing gear system
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56141715A JPS5844237A (en) | 1981-09-10 | 1981-09-10 | Valve operation controller for engine |
GB08225679A GB2105785B (en) | 1981-09-10 | 1982-09-09 | Controlling opening of multiple i c engine intake and exhaust valves |
US06/416,326 US4587936A (en) | 1981-09-10 | 1982-09-09 | Control apparatus for intake and exhaust valves of an internal combustion engine |
FR8215343A FR2512493B1 (en) | 1981-09-10 | 1982-09-10 | INTERNAL COMBUSTION ENGINE |
DE19823233683 DE3233683A1 (en) | 1981-09-10 | 1982-09-10 | INTERNAL COMBUSTION ENGINE |
US07/129,370 US4779589A (en) | 1981-09-10 | 1987-12-01 | Control apparatus for intake and exhaust valves of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56141715A JPS5844237A (en) | 1981-09-10 | 1981-09-10 | Valve operation controller for engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5844237A true JPS5844237A (en) | 1983-03-15 |
Family
ID=15298508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56141715A Pending JPS5844237A (en) | 1981-09-10 | 1981-09-10 | Valve operation controller for engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5844237A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6287891A (en) * | 1985-10-04 | 1987-04-22 | ウエスチングハウス エレクトリック コ−ポレ−ション | Core for nuclear reactor |
JPS62190487A (en) * | 1986-02-18 | 1987-08-20 | 原子燃料工業株式会社 | Method of charging fuel to boiling water type reactor |
US5617456A (en) * | 1988-01-14 | 1997-04-01 | Hitachi, Ltd. | Fuel assembly and nuclear reactor |
US5640435A (en) * | 1988-01-14 | 1997-06-17 | Hitachi, Ltd. | Fuel assembly and nuclear reactor |
US6028906A (en) * | 1997-08-22 | 2000-02-22 | Hitachi, Ltd. | Manufacturing method of control rod for boiling water reactor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS514416A (en) * | 1974-06-29 | 1976-01-14 | Toyota Motor Co Ltd | Nainenkikanniokeru kyukikyokyuhoho oyobi kozo |
JPS5512206A (en) * | 1978-07-12 | 1980-01-28 | Mitsubishi Motors Corp | Internal combustion engine |
-
1981
- 1981-09-10 JP JP56141715A patent/JPS5844237A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS514416A (en) * | 1974-06-29 | 1976-01-14 | Toyota Motor Co Ltd | Nainenkikanniokeru kyukikyokyuhoho oyobi kozo |
JPS5512206A (en) * | 1978-07-12 | 1980-01-28 | Mitsubishi Motors Corp | Internal combustion engine |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6287891A (en) * | 1985-10-04 | 1987-04-22 | ウエスチングハウス エレクトリック コ−ポレ−ション | Core for nuclear reactor |
JPS62190487A (en) * | 1986-02-18 | 1987-08-20 | 原子燃料工業株式会社 | Method of charging fuel to boiling water type reactor |
US5617456A (en) * | 1988-01-14 | 1997-04-01 | Hitachi, Ltd. | Fuel assembly and nuclear reactor |
US5640435A (en) * | 1988-01-14 | 1997-06-17 | Hitachi, Ltd. | Fuel assembly and nuclear reactor |
US6028906A (en) * | 1997-08-22 | 2000-02-22 | Hitachi, Ltd. | Manufacturing method of control rod for boiling water reactor |
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