JPH02103103U - - Google Patents
Info
- Publication number
- JPH02103103U JPH02103103U JP1242289U JP1242289U JPH02103103U JP H02103103 U JPH02103103 U JP H02103103U JP 1242289 U JP1242289 U JP 1242289U JP 1242289 U JP1242289 U JP 1242289U JP H02103103 U JPH02103103 U JP H02103103U
- Authority
- JP
- Japan
- Prior art keywords
- crankshaft
- oil pump
- sprocket
- engine
- camshafts
- 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
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Gear Transmission (AREA)
Description
第１，２図は本考案の第１実施例としてのオイ
ルポンプ兼用バルブ駆動機構を示すもので、第１
図はその模式的な正面図、第２図は第１図の―
矢視拡大断面図であり、第３，４図は本考案の
第２実施例としてのオイルポンプ兼用バルブ駆動
機構を示すもので、第３図はその要部を拡大して
示す正面図、第４図はその要部の断面図である。
１……排気バルブ側カムシヤフト、２……吸気
バルブ側カムシヤフト、３，４……カムスプロケ
ツト、５……タイミングベルト、６……クランク
シヤフト、８……排気バルブ駆動用カム、９……
吸気バルブ駆動用カム、１０……排気バルブ、１
１……吸気バルブ、１２……テンシヨンプーリ、
１３，１３Ａ……小歯車、１４，１４Ａ……１／
２減速スプロケツト、１４ａ……外歯歯車、１４
ｂ……外歯歯車（クランクスプロケツト）、１４
ｃ……ピン、１４ｄ……内歯歯車、１５，１５Ａ
……オイルポンプ、１５ａ……カバー、１５ｂ…
…吸込口、１５ｃ……吐出口、１５ｄ……ガイド
部材、１５ｅ……吸込口、１５ｆ……吐出口、１
６……端板、１７……プーリ、１８……補機駆動
用ベルト、１９……オイルパン、Ｅ……エンジン
、Ｒ１，Ｒ２……減速歯車機構。
Figures 1 and 2 show an oil pump/valve drive mechanism as a first embodiment of the present invention.
The figure is a schematic front view, and Figure 2 is the same as Figure 1.
3 and 4 are enlarged cross-sectional views in the direction of arrows, and FIGS. 3 and 4 show an oil pump/valve drive mechanism as a second embodiment of the present invention. FIG. 3 is an enlarged front view of the main parts; Figure 4 is a sectional view of the main part. 1... Exhaust valve side camshaft, 2... Intake valve side camshaft, 3, 4... Cam sprocket, 5... Timing belt, 6... Crankshaft, 8... Exhaust valve drive cam, 9...
Intake valve driving cam, 10...Exhaust valve, 1
1... Intake valve, 12... Tension pulley,
13, 13A... small gear, 14, 14A... 1/
2 reduction sprocket, 14a...external gear, 14
b... External gear (crank sprocket), 14
c...Pin, 14d...Internal gear, 15, 15A
...Oil pump, 15a...Cover, 15b...
...Suction port, 15c...Discharge port, 15d...Guide member, 15e...Suction port, 15f...Discharge port, 1
6...End plate, 17...Pulley, 18...Auxiliary drive belt, 19...Oil pan, E...Engine, R1 , R2 ...Reduction gear mechanism.
Claims (1)
ンジン上部に設けられた複数のカムシヤフトと、
これらの各カムシヤフトに取り付けられたカムス
プロケツトと、上記エンジンのクランクシヤフト
側に取り付けられたクランクスプロケツトと、上
記のカムスプロケツトおよびクランクスプロケツ
トに巻回されるタイミングベルトもしくはタイミ
ングチエーンとをそなえ、これらのクランクスプ
ロケツト、タイミングベルトもしくはタイミング
チエーン、カムスプロケツトを介して上記クラン
クシヤフトの動力を上記の各カムシヤフトへ伝達
し上記バルブを駆動するバルブ駆動機構において
、上記のクランクシヤフトとクランクスプロケツ
トとの間に、上記クランクシヤフトの回転を減速
して上記クランクスプロケツトへ伝達する減速歯
車機構がそなえられるとともに、上記減速歯車機
構を成す歯車によりオイルポンプが構成されてい
ることを特徴とする、オイルポンプ兼用バルブ駆
動機構。 a plurality of camshafts provided at the top of the engine to drive intake and exhaust valves of the engine;
A cam sprocket attached to each of these camshafts, a crank sprocket attached to the crankshaft side of the engine, and a timing belt or timing chain wound around the cam sprocket and crank sprocket. In a valve drive mechanism that transmits the power of the crankshaft to each of the camshafts and drives the valves via the crankshaft, timing belt or timing chain, or cam sprocket, The oil pump also serves as an oil pump, characterized in that a reduction gear mechanism is provided for decelerating the rotation of the crankshaft and transmitting the rotation to the crank sprocket, and an oil pump is constituted by the gears forming the reduction gear mechanism. Valve drive mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1242289U JPH02103103U (en) | 1989-02-04 | 1989-02-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1242289U JPH02103103U (en) | 1989-02-04 | 1989-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02103103U true JPH02103103U (en) | 1990-08-16 |
Family
ID=31221853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1242289U Pending JPH02103103U (en) | 1989-02-04 | 1989-02-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02103103U (en) |
-
1989
- 1989-02-04 JP JP1242289U patent/JPH02103103U/ja active Pending
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