JPS61202610U - - Google Patents
Info
- Publication number
- JPS61202610U JPS61202610U JP8523285U JP8523285U JPS61202610U JP S61202610 U JPS61202610 U JP S61202610U JP 8523285 U JP8523285 U JP 8523285U JP 8523285 U JP8523285 U JP 8523285U JP S61202610 U JPS61202610 U JP S61202610U
- Authority
- JP
- Japan
- Prior art keywords
- sliding shaft
- rocker arm
- valve
- shaft
- operating mode
- 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
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第1図は本考案の動弁装置の一部切り欠き平面
図でロツカーアームは鎖線で示してあり、第2図
はシリンダヘツドの模式的平面図、第3図は第1
図の―線に沿つたシリンダヘツドの一部の垂
直断面図、第4図はトリツプ機構およびロツカー
アームを示す斜視図、第5図はロツク機構のロー
タを示し、aはロータの側面をbはロータの端面
を示し、第6図はロツク機構のラチエツトを表す
図でaはその端面をbは側面を示し、第7図はロ
ータとラチエツトの相対関係を示す模式図である
。
18……ロツカーアーム、20……ロツカーア
ームシヤフト、22……カムシヤフト、42……
第1カム、44……第2カム、46……摺動軸、
76……油圧ポンプ、78……油圧アクチユエー
タ、81……プランジヤリターンスプリング、8
2……ポンププランジヤ、84……ポンプ室、8
8……電磁弁、90……プランジヤ、94……ラ
チエツト式ロツク機構、110……プランジヤロ
ツク手段、112……プランジヤの凹み、114
……ソレノイド式ラツチ機構、116……ピン。
Fig. 1 is a partially cutaway plan view of the valve train of the present invention, in which the rocker arm is indicated by a chain line, Fig. 2 is a schematic plan view of the cylinder head, and Fig. 3 is a schematic plan view of the cylinder head.
4 is a perspective view showing the trip mechanism and rocker arm; FIG. 5 shows the rotor of the locking mechanism; FIG. 6 is a view showing the ratchet of the locking mechanism, where a shows the end face and b shows the side surface, and FIG. 7 is a schematic diagram showing the relative relationship between the rotor and the ratchet. 18...Rotzker arm, 20...Rotzker armshaft, 22...Camshaft, 42...
First cam, 44...second cam, 46...sliding shaft,
76...Hydraulic pump, 78...Hydraulic actuator, 81...Plunger return spring, 8
2...Pump plunger, 84...Pump chamber, 8
8...Solenoid valve, 90...Plunger, 94...Ratchet type lock mechanism, 110...Plunger lock means, 112...Plunger recess, 114
... Solenoid type latch mechanism, 116 ... pin.
Claims (1)
ーアームを揺動可能かつ軸方向移動可能にロツカ
ーアームシヤフトに装着し、機関クランク軸に同
期して回転するカムシヤフトにカムプロフイルの
異なる2つのカムを互いに隣接するべく配置し、
前記ロツカーアームシヤフトは中空に形成し、該
ロツカーアームシヤフト内にはロツカーアームと
連動する摺動軸を軸方向摺動可能に装着して、ロ
ツカーアームがいずれか一方のカムに係合する第
1位置とロツカーアームが他方のカムに係合する
第2位置との間で摺動軸が変位して弁の作動モー
ドを切換える様になし、前記摺動軸にばね手段に
よつて前記第1位置に向つて付勢し、前記摺動軸
と整列して弁作動モード切換え時に摺動軸を前記
第2位置に向つて駆動する油圧アクチユエータを
設け、前記油圧アクチユエータと摺動軸との間に
はラチエツト式ロツク機構を設けて前記油圧アク
チユエータの作動毎に摺動軸が交互に前記第2位
置にロツクされ又は第2位置から釈放される様に
なし、カムシヤフトに設けたポンプ用カムにより
駆動されるプランジヤを備えた油圧ポンプを設け
てそのポンプ室を油圧アクチユエータに接続し、
前記油圧ポンプの吐出ポートは電磁式開閉弁で開
閉する様にした内燃機関用弁作動モード可変式動
弁装置において、 弁作動モード切換え時以外の時に前記油圧ポン
プのプランジヤをその上死点位置に掛止する手段
を設けたことを特徴とする弁作動モード可変式動
弁装置。[Scope of Claim for Utility Model Registration] A Rocker arm that operatively engages with an intake valve or an exhaust valve is attached to a Rocker arm shaft so as to be swingable and movable in the axial direction, and a camshaft that rotates in synchronization with an engine crankshaft. Two cams with different cam profiles are arranged adjacent to each other,
The rocker arm shaft is formed hollow, and a sliding shaft that interlocks with the rocker arm is installed in the rocker arm shaft so as to be slidable in the axial direction. and a second position in which the rocker arm engages the other cam, the sliding shaft is displaceable to switch the operating mode of the valve, and the sliding shaft is moved into the first position by spring means. A hydraulic actuator is provided, which is aligned with the sliding shaft and drives the sliding shaft toward the second position when switching the valve operation mode, and a ratchet is provided between the hydraulic actuator and the sliding shaft. A plunger driven by a pump cam provided on a camshaft is provided with a locking mechanism so that the sliding shaft is alternately locked in and released from the second position each time the hydraulic actuator is actuated. a hydraulic pump with a pump chamber connected to a hydraulic actuator;
In an internal combustion engine variable valve operating mode variable valve operating system in which the discharge port of the hydraulic pump is opened and closed by an electromagnetic on-off valve, the plunger of the hydraulic pump is set at its top dead center position at times other than when switching the valve operating mode. A variable valve operating mode variable valve operating device, characterized in that it is provided with a means for latching.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8523285U JPS61202610U (en) | 1985-06-07 | 1985-06-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8523285U JPS61202610U (en) | 1985-06-07 | 1985-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61202610U true JPS61202610U (en) | 1986-12-19 |
Family
ID=30635441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8523285U Pending JPS61202610U (en) | 1985-06-07 | 1985-06-07 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61202610U (en) |
-
1985
- 1985-06-07 JP JP8523285U patent/JPS61202610U/ja active Pending
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