JPS5882032A - Controller for operation of valve in engine - Google Patents
Controller for operation of valve in engineInfo
- Publication number
- JPS5882032A JPS5882032A JP17958481A JP17958481A JPS5882032A JP S5882032 A JPS5882032 A JP S5882032A JP 17958481 A JP17958481 A JP 17958481A JP 17958481 A JP17958481 A JP 17958481A JP S5882032 A JPS5882032 A JP S5882032A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- sensor
- opening
- negative pressure
- valve
- 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
- 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)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は主として車両用のエンジンにおける吸排気弁の
作動制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to an operation control device for intake and exhaust valves in a vehicle engine.
本願出願人は先にこの穂装置として、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Mw4作動作動上休止
これ會閉じ位置とする休止手段を備え、かくて該エンジ
ンの低連域では鉄手段【作動として該エンジンの出力特
性を向上さぜるようにした式のものを提案したが、この
場合該休止手段は該エンジンの回転数と、絞)弁の開度
とに応じてその作動を制御される弐を一般とするもので
、か−る4のでは駅回転数とし開度との組合せは無敵に
存し制御手段は比較的複雑となシ勝ちである不都合を伴
うO本発明はか−る不都合のな一装置【得ることをその
目的とし友もので、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、その開閉作動音休止して仁れを閉じ付替とす
る休止手段を備える式のものにおいて、醪体止手段に該
エンジンの絞り弁のl1llVに応動する開度センサの
少くとも2個と、該エンジンの回転数に応動する回転数
センナの少くとも2個とから成るm御回路を備えて該回
路によりその作動を制御させるよう圧して成る。The applicant of this application has previously proposed this system by providing at least two intake valves or exhaust valves in one cylinder of an engine, and one of the two valves has a valve that is closed when the Mw4 is in operation. We have proposed an iron means [operation] which is equipped with a stop means to set the engine in a low range and improve the output characteristics of the engine, but in this case, the stop means is In general, the operation of the engine is controlled according to the engine speed and the opening degree of the throttle valve, and the combination of the station rotation speed and the opening degree is unbeatable in Type 4. The control means have the disadvantage of being relatively complex.The present invention has the object of providing a device which avoids such disadvantages and which provides at least two control means for each cylinder of the engine. In a type that is provided with an intake valve or an exhaust valve, and one of the two valves is provided with a stop means for stopping the sound of the opening and closing operation, closing the burr and replacing the engine, the mortar stopping means is provided with a A control circuit comprising at least two opening degree sensors that respond to l1llv of the throttle valve and at least two rotational speed sensors that respond to the engine rotational speed, the operation of which is controlled by the circuit. It is made under such pressure.
更に該休止手段は該エンジンの吸気負圧にも応動してそ
の作動Vtl1I御されることが好ましい。Furthermore, it is preferable that the operation of the stopping means is controlled by Vtl1I in response to the intake negative pressure of the engine.
第2発明社か−る要求に適合する装置t−得ること〜會
その目的とし友ものでエンジンの1個のシリンダに1少
くとも2個の吸気弁又は排気弁管段けると共に12個の
弁の一方にその開閉作動音休止してこれを閉じ位置とす
る休止手段を備える式のものにおいて、該休止手段に該
エンジンの絞り弁の一度に応動する開度センサの少くと
・42個と、該エンジンの回転数に応動する回転数セン
サの少くとも2個とSeエンジンの吸気負圧に応動する
負圧センサの少くとも2個とから成る111111回路
を備えて峨回路によシその作動tri制御させるように
して成る。The object of the present invention is to obtain a device which meets the requirements of the second inventor, and which provides a system in which each cylinder of an engine is provided with at least two intake valves or exhaust valve pipes and with twelve valves. In one type, there is a stop means that stops the sound of the opening and closing operation and sets it to the closed position, and the stop means includes at least 42 opening sensors that respond to the throttle valve of the engine at a time. Equipped with a 111111 circuit consisting of at least two rotational speed sensors that respond to the engine rotational speed and at least two negative pressure sensors that respond to the intake negative pressure of the Se engine, the operation tri-control is carried out in the slope circuit. It is made in such a way that it
本発明実態の1例を別紙図画に付説明する0図−で41
3 Fiエンジンのシリンダを示し、該シリンダ(1)
は七〇−一に2個の吸気弁(21(2+と、その他@に
2個の排気弁(3)(3)とt備えると共にその上@に
これを駆動する一側の吸気カム(4714Jと、他−の
排気カム(51(51と1mえる・駁2個の吸気弁(2
1(21の一方(例えi1′図圓で上−の1個)にその
−動作動を休止してこれtw5じ位置とする休止手段(
6)を備えると共に蔽2個の排気弁t31 (3)t)
一方(図−で上側の1個)・に、その開吻作動七休止し
てこれt−じ位置とする休止手段17J を備え、かく
て両手段16117)の作動によれば該シリンダt1)
はその他方の吸気弁(21と他方の排気弁(3)とt介
してのみ吸排気される状繰となるようにし九〇
厳体止手M (6Jは第2図に明示するように通電によ
ればl2ies電磁弁(6a)からxb、D弁(6a)
の開弁によれハ咳一方の弁(2+の上−〇ロッカアーム
(8)の支点をその下側からはね(9)t−介して支承
する制−シリンダ(IIはその流出口ODが開かれるも
ので、かくて該シリンダ曲内に流入口α邊會介して導か
れる圧油は醪流出口Qll介して排田されて該シリンダ
曲内は低圧となり、その土偶の該はね191 Fiその
ばね強さ音減少されて該支点は下動自在となり、これを
換言すれば症アーム(8)は不作動となるようにした。An example of the actual state of the present invention is explained in attached drawings in Figure 0-41.
3 shows the cylinder of the Fi engine, and the cylinder (1)
is equipped with two intake valves (21 (2+) and two exhaust valves (3) (3) and t on the other @70-1, and also has an intake cam (4714J) on one side that drives this. and the other exhaust cam (51 (51 and 1m apart) and two intake valves (2
1 (21) (for example, the upper one in the i1' diagram), the stopping means (for example, the upper one in the i1' diagram) stops the movement and brings it to the tw5 position.
6) and two exhaust valves t31 (3) t)
One side (the upper one in the figure) is provided with a stop means 17J for stopping its proboscis opening operation and bringing it to the same position as the cylinder t1).
90 Strict stop M (6J is energized as shown in Fig. 2) According to L2ies solenoid valve (6a) to XB, D valve (6a)
When the valve of one of the valves (2+ is opened), the fulcrum of the rocker arm (8) is pushed from its lower side (9) and the control cylinder (II is supported by its outlet OD) opened. In this way, the pressure oil introduced into the cylinder curve through the inlet α side is discharged through the mortar outlet Qll, and the pressure inside the cylinder curve becomes low, causing the clay figurine to splash 191 Fi. The spring strength is reduced and the fulcrum is free to move downward, in other words, the arm (8) is rendered inoperative.
これは前記し九体止手段(7)についても略同様であり
、同じく通電によれ1ロる電磁弁(70から成る。This is substantially the same for the above-described nine stop means (7), which also consists of one electromagnetic valve (70) that is energized.
以上は先に提案したものと特に負ることなく本発明によ
れば該休止手段(61(力の作動t−腕制御る1Ili
l#手設′f:提供するもので、その1例は第5図に明
示する通りである。即ち該制御手11!!は仝図示の回
路0から成るもので、該U路a穐は骸エンジンの絞多弁
の一度に応動する開度センサQ41の少くとも2個と瞑
エンジンの回転数に応動する回転数センサα1の少くと
も2個とから成る。更に説明すれは、−示のものでは該
囲良センサロ4は大開度の全開では閉じるスイッチから
成るセンサ(14a)と、中間開度のi開度では閉じる
スイッチから成るセンサ(14b)と、小開度の%開度
では閉じるス“インチから成るセンナ(146)とから
成ると共に、該回転数センすα9は比較的高回転、例え
ば800(lf−以上で閉じるスイッチから成るセン+
(15荀と、比較的低回転、例えばs o o o r
pm以上で閉じるスイッチから成るセンサ(15b)と
から成)、咳大開度のセンナ(14m)と該小開度のセ
ンサ(14o)とを互に並列に該高回転のセンサ(15
m)に接続すると共にこれと並列に該中間開度のセンサ
(14b)’l該低回転のセンサ(15b)に接続させ
、これらを前記した電磁弁(4m) (7m)と電5e
asとの接続回路に介入されるリレ接点(17a)を存
するリレIの通電回路に介入させる。The foregoing is not particularly indicative of what has been proposed above, but according to the present invention the stopping means (61 (force actuation t-arm controlling 1Ili
l#Handmade'f: Provided, an example of which is clearly shown in FIG. That is, the control hand 11! ! The circuit 0 shown in FIG. It consists of at least two pieces. Further explanation is that in the case shown in -, the enclosure sensor 4 includes a sensor (14a) consisting of a switch that closes at a large opening (fully open), a sensor (14b) consisting of a switch that closes at an intermediate opening (i), and a sensor (14b) consisting of a switch that closes at an intermediate opening (i); The rotation speed sensor α9 is a sensor (146) consisting of a switch that closes at a relatively high rotation speed, e.g. 800 (lf- or above).
(15 x, relatively low rotation, e.g.
a sensor (15b) consisting of a switch that closes at pm or higher), a large-opening sensor (14m), and a small-opening sensor (14o) in parallel to each other.
m) and connected in parallel to the intermediate opening sensor (14b)'l and the low rotation sensor (15b), and these are connected to the above-mentioned solenoid valves (4m) (7m) and electric current 5e.
A relay contact (17a) inserted into the connection circuit with as is inserted into the energizing circuit of relay I.
かくてその作動を説明するに、例えば第4図示O通pで
′h)、絞シ弁の全開と54一度とでは比較的高回転の
舅・、以下において各休止手段(6)(7)が作動し、
これに伴い該エンジンの出力特性は一部、及び線B、か
ら線ム、及び廁−に切換えられて低速側でその出力特性
を同上され、更に捧開度では低回転のN@1以下におい
て同じく休止されてその出力特性は線O1から−08に
切換えられて同じく出力特性が同上する。Thus, to explain its operation, for example, in Figure 4, O'h), when the throttle valve is fully open and when the throttle valve is fully opened, the rotation speed is relatively high. is activated,
Along with this, the output characteristics of the engine are partially switched from line B to line B and line B, and the output characteristics are the same as above at low speeds, and furthermore, at low opening angles at low rotations N@1 or less. Similarly, when it is stopped, its output characteristic is switched from line O1 to -08, and the output characteristic is also the same as above.
更に第2発明によれば、前記した制御回路0は該エンジ
ンの吸気負圧に応1する負圧センサQ81を含むもので
、図示のものでは形センサ餞は比開度のセンサ(14b
)と低回転のセンサ(15b)との間に介入されると共
に駁センサ(18荀はこれと並列の該センサ(14k+
)と高回転のセンサ(15m)との接続回路に介入され
る〇
か〈′てその作動t−説明するに、第4図示の通電であ
り、絞シ弁の中間開度において別途される場合を考える
に、吸気負圧が比軟的低くセンサ(18b)が閉じるか
ら、低−転のセンサ(15b)が作動に用意されて回転
数舅・2以上ではこれが閉じ、かくて出力特性はこの回
転数N@8以上では一部。Furthermore, according to the second invention, the control circuit 0 includes a negative pressure sensor Q81 responsive to the intake negative pressure of the engine, and in the illustrated one, the type sensor Q81 is a specific opening sensor (14b).
) and the low rotation sensor (15b), and the rear sensor (18
) and the high-speed sensor (15 m) and its operation is intervened in the connection circuit between the sensor (15 m) and the high-speed sensor (15 m). Considering this, since the intake negative pressure is relatively low and the sensor (18b) closes, the low-speed sensor (15b) is prepared for operation and closes when the rotational speed is 2.2 or more, and thus the output characteristics are as follows. Partly when the rotation speed is N@8 or higher.
から−0,に切換えられて加速感が増大する0次で絞)
弁の中間開度において減速する場合を考えるに、吸気負
圧は比較的高くセンサ(18m)が閉じて高回転のセン
?(15a)が作動に用意されて一転歇葺・1以下でこ
れが―龜(かくて出力特性は一転撒葺・、にお−て1i
iIIO3から線0.に切換えられ −て減速感が増大
する。(stopping at the 0th order, where the feeling of acceleration increases as it switches from -0 to -0)
Considering the case of deceleration at an intermediate valve opening, the intake negative pressure is relatively high and the sensor (18m) is closed, causing high rotation speed. (15a) is prepared for operation, and the output characteristics are 1i at 1 turn and 1 or less.
iIIO3 to line 0. - The feeling of deceleration increases.
更に図示のものではm記したリレaηの通電回路に車速
O予定値以上、例えば1572/II以上では閉じるス
イッチから成る車速センサa9と、エンジン温度の比較
的高温例えば40℃以上でFi閉じるスイッチから成る
温度セン?(至)とを介入させ、かくて車速の比較的高
速と、エンジン湿度、従って前記し比制御シリンダQl
内の圧油の比軟的高温に際してのみ前記した休止手段(
6)(7)が不作−に用意されるようにし良。Furthermore, in the illustrated example, a vehicle speed sensor a9 consisting of a switch that closes when the vehicle speed O exceeds a predetermined value, for example 1572/II or above, and a switch Fi that closes when the engine temperature is relatively high, for example 40° C. or above, are connected to the energizing circuit of the relay aη marked m. Temperature sensor? (to), thus reducing the relatively high vehicle speed and engine humidity, and therefore the ratio control cylinder Ql.
The above-mentioned stopping means (
6) (7) should be prepared in case of poor harvest.
このように本発明によるときFLmm回路七収り弁の開
度に応動する開度センサの少くと42個とエンジンの回
転数に応動する回転数センナの少くとも2個とで構成す
るもので、その構成音比較的簡単にすることが出来、斐
に麺2発明によればこれに吸気負圧に応動する負圧セン
サの少くとも2個を加えるもので、構成が比較的簡単で
あると共に加速時と低速時とで糸る制御を得ることが司
能である等の効:’it准する。As described above, according to the present invention, the FLmm circuit consists of at least 42 opening sensors that respond to the opening of the intake valve and at least two rotational speed sensors that respond to the engine rotational speed. Its structure can be relatively simple, and according to the invention, at least two negative pressure sensors that respond to intake negative pressure are added to this, and the configuration is relatively simple and acceleration can be improved. The effect of being able to control the thread at low speeds and at low speeds: 'it's true.
第1図は本発#3A装敏の1例の斜111+図、第2図
はその一部の酸析妬囲図、第5図はその制御回路の線図
である。
il+・・・・・・・・・シリ ンダ
(21121・・・・・・吸 気 弁+31 +3
1・・・・・・排 気 弁i6J (7)・・・・・・
休止手段
a3・・・・・・・・・制御回路
αI・・・・・・・・・開度センサ
a珈・・・・・・同転数センサ
外2名
第2」
4
手続補正書(自発) 。
昭和 年 月 日
特許庁□っ 50・12・101、事件の
表示
昭和56年特許願第179584号
2、発明の名称
エンジンにおける弁作動制御装置
3、補正をする者
事件との関係 特許出願人
532亭田技研工業株式会社
4、代 理 人
亀 補正の対象
明細書の「図面の簡単な説明」の媚並&:図向lI4図
7、補正の内容
(1) 明細書jl!10頁第8行目に「路の線図で
ある。」とあるをr路の線図、第4図はその出力特性!
IIWJである。」に訂正する。
(2J N紙間面1lll!4図を提出します。FIG. 1 is a diagonal 111 + diagram of an example of the #3A sominium of the present invention, FIG. 2 is a partial oxidation diagram, and FIG. 5 is a diagram of its control circuit. il+......Cylinder (21121...Intake valve +31 +3
1...Exhaust valve i6J (7)...
Stopping means a3......Control circuit αI......Opening sensor ac......Two people other than the same rotation speed sensor 2nd person" 4 Procedural amendment ( voluntarily). Date of Patent Office 50/12/101, 1981, Display of the case 1982 Patent Application No. 179584 2, Name of the invention Valve operation control device for an engine 3, Person making the amendment Relationship to the case Patent applicant 532 Teida Giken Kogyo Co., Ltd. 4, Agent Hitokame The "Brief Explanation of the Drawings" of the specification to be amended is flattering &: Zuko lI 4 Figure 7, Contents of the amendment (1) Specification jl! On page 10, line 8, it says "This is a diagram of the road." This is the diagram of the r road, and Figure 4 is its output characteristics!
IIWJ. ” is corrected. (2J N paper space 1llll! Submit 4 diagrams.
Claims (1)
弁又は排気弁tI&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閉じ位置とする休止手段を
備える式のものにおいて1義休止手段に該エンジンの絞
9弁の開度に応動する開度センナの少くとも2個と、該
エンジンの回転数に応動する回転数センナの少くと42
個とから成る制御回路t−備えてji11g回路に19
その作動tm御させるようにして成るエンジンにおける
弁作動制御装置。 龜 該一度センサは馴絞如弁の大N度と中間一度と小開
度とに応動する5個から成ると共に、il[−転緻七ン
fは該−転数の高回転と低回転とに応動する2個から成
る特許請求の範囲側1項所載のエンジンにおける弁作動
制御Mllt。 & 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龜2個の弁の一方にその
開閉作動を休止してこれを閉じ位置とする休止手段を備
える式のものにおいて、U休止手段に葭エンジンの絞り
弁の開度に応動する開度センナの少くと42個と、該エ
ンジンの回転数に応動する回転数センナの少くとも2個
と、該エンジンの吸気負圧に応動する負圧セン? O少
< ト% 2 個トカラ& ルil[lll 1gl*
を備えて該回路によシその作動tiIiI御させるよ
うにして成るエンジンにおける弁作動m#装置。 本 D、14fiLセンVは該紋シ弁の大開度と中間開
度と小開度とに応動する5個から成ると共に、該回転数
センナは販同転数の高回転と低回転とに応動する2個か
ら成り、史に該負圧センサは該負圧の高負圧と低負圧と
に応動する2個から成る特許請求の範囲第5項所載のエ
ンジンにおける弁作動−脚装置。 ag中間開度に応動するセンサは1級高負圧に応動する
センサの作動によれば該高回転に応動するセンサと協動
すると共に、該低負圧にめ動するセンサの作動によれば
該低回転に応動するセンナと協動する特許請求の範囲第
4項所載のエンジンにおける弁作動制御装置。[Scope of Claims] At least two intake valves or exhaust valves are installed in one cylinder of the L engine, and one of the two valves is placed in a closed position by stopping its opening/closing operation. In the case of a type equipped with a stop means, the first stop means includes at least two opening degree sensors that respond to the opening degrees of the nine throttle valves of the engine, and at least 42 rotation speed sensors that respond to the rotation speed of the engine.
A control circuit consisting of t and 19 circuits
A valve operation control device for an engine configured to control its operation tm. The sensor consists of five sensors that respond to the large N degree, intermediate degree, and small opening degree of the opening valve, and the sensor responds to the high rotation speed and low rotation speed of the rotation speed. Valve operation control Mllt in an engine according to claim 1, comprising two valve actuation controls Mllt responsive to. & At least two intake valves or exhaust valves are provided in one cylinder of the engine, and one of the two valves is provided with a stop means for stopping the opening/closing operation of the valve and bringing it into the closed position. In the U stop means, at least 42 opening degree sensors that respond to the opening degree of the throttle valve of the Yoshi engine, at least two rotation speed sensors that respond to the rotational speed of the engine, and the intake air of the engine. A negative pressure sensor that responds to negative pressure? O small < t% 2 pieces Tokara & Luil
A valve actuation m# device in an engine, comprising: a valve actuation m# device for an engine, the circuit having the circuit controlling its operation. This D, 14fiL sensor V consists of five pieces that respond to the large opening, intermediate opening, and small opening of the crest valve, and the rotation speed sensor responds to the high and low rotations of the sales rotation speed. 6. A valve actuation-leg device for an engine according to claim 5, wherein the negative pressure sensor is comprised of two sensors that respond to high negative pressure and low negative pressure of the negative pressure. The sensor that responds to the ag intermediate opening cooperates with the sensor that responds to the high rotation according to the operation of the sensor that responds to class 1 high negative pressure, and the sensor that responds to the low negative pressure cooperates with the sensor that responds to the low negative pressure. A valve operation control device for an engine according to claim 4, which cooperates with a senna that responds to the low rotation speed.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17958481A JPS5882032A (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 |
---|---|---|---|
JP17958481A JPS5882032A (en) | 1981-11-11 | 1981-11-11 | Controller for operation of valve in engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5882032A true JPS5882032A (en) | 1983-05-17 |
Family
ID=16068275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17958481A Pending JPS5882032A (en) | 1981-11-11 | 1981-11-11 | Controller for operation of valve in engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5882032A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5656941A (en) * | 1979-10-16 | 1981-05-19 | Mitsubishi Motors Corp | Engine having mechanism for stopping operation of valve |
-
1981
- 1981-11-11 JP JP17958481A patent/JPS5882032A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5656941A (en) * | 1979-10-16 | 1981-05-19 | Mitsubishi Motors Corp | Engine having mechanism for stopping operation of valve |
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