JPH0222606U

JPH0222606U -

Info

Publication number: JPH0222606U
Application number: JP10086388U
Authority: JP
Priority date: 1988-07-29
Filing date: 1988-07-29
Publication date: 1990-02-15

Description

[Brief explanation of drawings]

第１図は、本考案による内燃機関の動弁機構を
部分的に断面図を示す平面図である。第２図は、
第１図の―線に於ける斜視図である。第３図
は、第２図の―線に於ける連結切換装置の断
面図である。第４図は、本考案の別の実施例を示
す第３図と同様の断面図である。１……シリンダ、２，３……吸気バルブ、４，
５……排気バルブ、６……シリンダヘツド、７，
８……動弁機構、９……プラグ差込孔、１０……
ロツカシヤフト、１１……第１ロツカアーム、１
２……第２ロツカアーム、１３……第３ロツカア
ーム、１４……カムシヤフト、１５……カム支持
部、１５ａ……孔、１６，１７……低速用カム、
１８……高速用カム、１９，２０……支持部、２
１〜２３……カムスリツパ、２４，２５……タペ
ツトねじ、２６，２７……リテーナ、２８，２９
……バルブスプリング、３０……連結切換装置、
３１……第１ガイド孔、３２……第１切換ピン、
３２ａ，３２ｂ……端部、３３……油圧室、３４
……通路、３４ａ……入口、３５……給油路、３
６……第２ガイド孔、３７……第２切換ピン、３
７ａ，３７ｂ……端部、３８……第３ガイド孔、
３９……ストツパピン、４０……ガイドスリーブ
、４１……軸部、４２……リターンスプリング、
５０……円錘面、５１……貫通孔、５２……プラ
グ、５３……通路、６１……端面、６２……給油
口、６３……連通路、６４……切換制御弁、６５
……オイルギヤラリ、６６……オイルパン、６７
……オイルポンプ、６８……リリーフ弁、６９…
…オイルフイルタ、７０……オイルクーラ。 FIG. 1 is a partially sectional plan view of a valve train for an internal combustion engine according to the present invention. Figure 2 shows
FIG. 2 is a perspective view taken along the line - in FIG. 1; FIG. 3 is a sectional view of the connection switching device taken along the line - - in FIG. 2. FIG. 4 is a sectional view similar to FIG. 3 showing another embodiment of the present invention. 1... Cylinder, 2, 3... Intake valve, 4,
5...Exhaust valve, 6...Cylinder head, 7,
8...Valve mechanism, 9...Plug insertion hole, 10...
Rotsuka shaft, 11...1st Rotsuka arm, 1
2... Second rocker arm, 13... Third rocker arm, 14... Camshaft, 15... Cam support portion, 15a... Hole, 16, 17... Low speed cam,
18... High speed cam, 19, 20... Support part, 2
1 to 23... Cam slipper, 24, 25... Tappet screw, 26, 27... Retainer, 28, 29
... Valve spring, 30 ... Connection switching device,
31...first guide hole, 32...first switching pin,
32a, 32b... end, 33... hydraulic chamber, 34
...Aisle, 34a...Entrance, 35...Refueling path, 3
6...Second guide hole, 37...Second switching pin, 3
7a, 37b... end, 38... third guide hole,
39...Stopper pin, 40...Guide sleeve, 41...Shaft portion, 42...Return spring,
50... Conical surface, 51... Through hole, 52... Plug, 53... Passage, 61... End face, 62... Oil supply port, 63... Communication passage, 64... Switching control valve, 65
...Oil gear, 66...Oil pan, 67
...Oil pump, 68...Relief valve, 69...
...Oil filter, 70...Oil cooler.

Claims

[Claims for Utility Model Registration] (1) A plurality of rocker arms pivotally supported on a rocker shaft, rocker arm connection switching means for selectively connecting or disconnecting adjacent rocker arms by the action of hydraulic pressure, and rocker arm connection switching means for selectively connecting or disconnecting adjacent rocker arms by the action of hydraulic pressure; A valve operating mechanism for an internal combustion engine, comprising an oil supply passage provided inside the rocker shaft for selectively supplying hydraulic pressure to a hydraulic chamber of a connection switching means, the oil supply passage guiding oil to the hydraulic chamber. A valve operating mechanism for an internal combustion engine, wherein the passage has a peripheral edge of an inlet opening into the oil supply passage formed with a conical surface. (2) A plurality of rocker arms swingably supported on a rocker shaft, a rocker arm connection switching means for selectively connecting or disconnecting the adjacent rocker arms by the action of hydraulic pressure, and a hydraulic chamber of the rocker arm connection switching means. A valve operating mechanism for an internal combustion engine comprising an oil supply passage provided inside the rock shaft for supplying hydraulic pressure to the oil supply passage, the passage guiding oil from the oil supply passage to the hydraulic pressure chamber, A valve mechanism for an internal combustion engine, characterized in that the valve mechanism is formed to be inclined toward the supply side of the engine.