JPS6090905A - Valve stopping device of 4-cycle engine - Google Patents
Valve stopping device of 4-cycle engineInfo
- Publication number
- JPS6090905A JPS6090905A JP19806983A JP19806983A JPS6090905A JP S6090905 A JPS6090905 A JP S6090905A JP 19806983 A JP19806983 A JP 19806983A JP 19806983 A JP19806983 A JP 19806983A JP S6090905 A JPS6090905 A JP S6090905A
- Authority
- JP
- Japan
- Prior art keywords
- rocker arm
- cam
- valve
- hydraulic plunger
- base end
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0005—Deactivating valves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
【発明の詳細な説明】
この＠明は、４サイクルエンジンのバルブ停市装置に関
する。DETAILED DESCRIPTION OF THE INVENTION This @ Ming relates to a valve stop device for a four-stroke engine.
４サイクルエンジンでは、クランクシャフトに連動させ
たカムシャフトのカムによって、ロッカーアームを揺動
させ、吸排気バルブを押下げて開閉させている。従って
、クランクシャフトが回転している間はカムシャフトが
回転し、吸排気バルブが開閉する。エンジンでは、減速
時のようす場合は、燃料が無駄に流れるが、多気筒エン
ジンで一部の気筒のバルブを停市できれば、燃料消費も
少くできるが、クランクシャフトが回転しＣいる間、バ
ルブも開閉するので、このよ−）なことはできない。In a four-stroke engine, a cam on a camshaft linked to the crankshaft swings a rocker arm to push down intake and exhaust valves to open and close them. Therefore, while the crankshaft is rotating, the camshaft rotates and the intake and exhaust valves open and close. In an engine, fuel flows wastefully during deceleration, but if the valves of some cylinders can be stopped in a multi-cylinder engine, fuel consumption can be reduced, but while the crankshaft is rotating and the valves are Since it opens and closes, you can't do something like this.
この発明は、かかる点に鑑み、述転中をこりケ足の気筒
の吸排気バルブを停止できるようにしたもので、以下本
９Ｉ８ｉ明を図面に示す実施例ζこついて説明する。In view of this point, the present invention is designed to stop the intake and exhaust valves of the cylinders for a short period of time during rotation.The present invention will be described below with reference to an embodiment shown in the drawings.
カム１を設けたカムシャフト２は、シリンターヘッド３
に回転自在に軸支してあっＣ１タイミングチエン等でク
ランクシャフトをこ連間され、クランクシャフトに連動
して回転する。ロッカーアーム４は、基端に長孔５が設
けてあって、シリンターヘッド３の支軸６に軸支させＣ
ある。又、ロッカーアーム４の基端下ｍｌｌには、油川
ブランジャー７を押当てである。油圧プランジャー７に
は、ポンプ８で作動油が、ソレノイドバルブ９を介して
送られるようになっており、ソレノイドバルブ９は、切
替えによって油圧プランジャー７４と送油しないように
選択できる。ロッカーアーム４は、中央がカム１に当る
ようになってあり、先端は、隙間アジャストロンドｌＯ
ヲ介して、傘形バルブ１１の上端に当てである。A camshaft 2 provided with a cam 1 is connected to a cylinder head 3.
The crankshaft is rotatably supported by the C1 timing chain, etc., and rotates in conjunction with the crankshaft. The rocker arm 4 has an elongated hole 5 at its base end, and is pivotally supported by a support shaft 6 of the cylinder head 3.
be. Further, an Aburawa plunger 7 is pressed against the lower proximal end of the rocker arm 4. Hydraulic oil is sent to the hydraulic plunger 7 by a pump 8 via a solenoid valve 9, and the solenoid valve 9 can be selected not to send oil to the hydraulic plunger 74 by switching. The center of the rocker arm 4 is in contact with the cam 1, and the tip of the rocker arm 4 has a gap adjustment rod lO.
It rests on the upper end of the umbrella-shaped bulb 11 through it.
しかして、通常は、ポンプ８によって油圧プランジャー
７にγ円圧が込られ、油圧プランジャー７カ５０ツカ−
アーム４の基端を押上げ、ロッカーアーム４がカム１に
当って隙間がないようになっている。従って、カムシャ
フト２が回転するとカムｌによってロッカーアーム４を
支軸６を軸にして押下げ、傘形バルブ１１を押Ｆげて開
閉させる。減速時等に、ソレノイドバルブ９を切替えて
、油圧プランジャー７への送油を停止すると、ロッカー
アーム４は基端が長孔５に沿って下り、カム１から離れ
る。このようになるとカムシャフト２が回転しても空回
りするたけで、カム１によってロッカーアーム４を押す
ことができず、傘形バルブ１１は閉じたままになって開
閉しなくなる。Therefore, normally, γ circular pressure is applied to the hydraulic plunger 7 by the pump 8, and the 7 hydraulic plungers 50
The base end of the arm 4 is pushed up, and the rocker arm 4 hits the cam 1 so that there is no gap. Therefore, when the camshaft 2 rotates, the cam 1 pushes down the rocker arm 4 about the support shaft 6, and pushes the umbrella valve 11 up to open and close it. When the solenoid valve 9 is switched to stop oil supply to the hydraulic plunger 7 during deceleration or the like, the base end of the rocker arm 4 descends along the elongated hole 5 and separates from the cam 1. In this case, even if the camshaft 2 rotates, it will simply idle, and the cam 1 will not be able to push the rocker arm 4, and the umbrella valve 11 will remain closed and will not open or close.
以上説明したように、この発明は、カムシャフトのカム
でロッカーアームを揺動させ、ロッカーアームで傘形バ
ルブを押下げて開閉するようにしたものに於て、ロッカ
ーアームの基端を長孔にしてシリンダへ髪ドの支軸に軸
支し、ロッカーアームの基端下側に油圧プランジャーを
押圧させ、油圧のり替えによつＣロッカーアームの作動
を不１１しにづ−るようをこしたので、エンジン運弦中
に、ロッカーアームの作動を止めＣ単形バルブの開閉を
停止させることかできる。こうしで、減速時等に特定の
気筒の吸排気バルブを止め、燃料を節約することができ
る。As explained above, the present invention has a structure in which a rocker arm is swung by a cam of a camshaft, and an umbrella-shaped valve is opened and closed by pushing down the rocker arm. The cylinder is pivoted on the support shaft of the hair door, and a hydraulic plunger is pressed against the bottom of the base end of the rocker arm, so that the operation of the C rocker arm is prevented by changing the hydraulic pressure. Therefore, it is possible to stop the operation of the rocker arm and stop the opening and closing of the C single-type valve during engine string operation. This allows the intake and exhaust valves of specific cylinders to be shut off during deceleration, etc., thereby saving fuel.
図は本発明の一実施列を示す一部を縦断した正面図であ
る。
１・・・カム、２・・・カムシャフト、３・・・シリン
ダーヘッド、４・・・ロッカーアーム、５・・長孔、６
・・・支軸、７・・・油圧プランジャー、１１・・・傘
形ノクルブ。
出碩人代理人 猪 股 渭The figure is a partially longitudinally sectional front view showing one embodiment of the present invention. 1...Cam, 2...Camshaft, 3...Cylinder head, 4...Rocker arm, 5...Long hole, 6
... Support shaft, 7... Hydraulic plunger, 11... Umbrella-shaped knob. Delegation agent Ino Mata Wei
Claims (1)
カーアームで傘形バルブを押下げて開閉するようにした
ものに於て、ロッカーアームの基端を長孔にしてシリン
ターヘッドの支軸に軸支し、ロッカーアームの基端丁側
に油圧プランジャーを押圧させ、γ出玉の切誉えによっ
てロッカーアームの作動を不能にするようにした４サイ
クルエンジンのバルフ停止装７：。The rocker arm is rocked by the cam of the camshaft, and the umbrella-shaped valve is pushed down by the rocker arm to open and close. Valve stop device 7 for a 4-stroke engine, which is pivotably supported, presses a hydraulic plunger against the base end side of the rocker arm, and disables the operation of the rocker arm by cutting the gamma ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19806983A JPS6090905A (en) | 1983-10-22 | 1983-10-22 | Valve stopping device of 4-cycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19806983A JPS6090905A (en) | 1983-10-22 | 1983-10-22 | Valve stopping device of 4-cycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6090905A true JPS6090905A (en) | 1985-05-22 |
Family
ID=16385002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19806983A Pending JPS6090905A (en) | 1983-10-22 | 1983-10-22 | Valve stopping device of 4-cycle engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6090905A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5189997A (en) * | 1991-07-04 | 1993-03-02 | Dr. Ing. H.C.F. Porsche Ag | Internal-combustion engine comprising a rocker lever valve gear |
| WO1994003709A1 (en) * | 1992-08-07 | 1994-02-17 | Ina Wälzlager Schaeffler Kg | Engine valve cut-off via cam roller displacement |
| US5666913A (en) * | 1996-05-29 | 1997-09-16 | Cummins Engine Company, Inc. | Variable timing cam follower lever assembly |
| WO1999047794A1 (en) * | 1998-03-16 | 1999-09-23 | Vasant Joshi | Selective disabling of cam operated devices |
| EP1205643A1 (en) | 2000-11-13 | 2002-05-15 | Stefan Battlogg | Valve drive in an internal combustion engine |
| WO2015083654A1 (en) * | 2013-12-06 | 2015-06-11 | ヤマハ発動機株式会社 | Valve gear for engine |
-
1983
- 1983-10-22 JP JP19806983A patent/JPS6090905A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5189997A (en) * | 1991-07-04 | 1993-03-02 | Dr. Ing. H.C.F. Porsche Ag | Internal-combustion engine comprising a rocker lever valve gear |
| WO1994003709A1 (en) * | 1992-08-07 | 1994-02-17 | Ina Wälzlager Schaeffler Kg | Engine valve cut-off via cam roller displacement |
| US5666913A (en) * | 1996-05-29 | 1997-09-16 | Cummins Engine Company, Inc. | Variable timing cam follower lever assembly |
| WO1999047794A1 (en) * | 1998-03-16 | 1999-09-23 | Vasant Joshi | Selective disabling of cam operated devices |
| EP1205643A1 (en) | 2000-11-13 | 2002-05-15 | Stefan Battlogg | Valve drive in an internal combustion engine |
| WO2015083654A1 (en) * | 2013-12-06 | 2015-06-11 | ヤマハ発動機株式会社 | Valve gear for engine |
| JPWO2015083654A1 (en) * | 2013-12-06 | 2017-03-16 | ヤマハ発動機株式会社 | Engine valve gear |
| US9784148B2 (en) | 2013-12-06 | 2017-10-10 | Yamaha Hatsudoki Kabushiki Kaisha | Valve gear for engine |
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