JPH01162002U - - Google Patents
Info
- Publication number
- JPH01162002U JPH01162002U JP5906688U JP5906688U JPH01162002U JP H01162002 U JPH01162002 U JP H01162002U JP 5906688 U JP5906688 U JP 5906688U JP 5906688 U JP5906688 U JP 5906688U JP H01162002 U JPH01162002 U JP H01162002U
- Authority
- JP
- Japan
- Prior art keywords
- idle gear
- cylinder
- intake
- support shaft
- gear support
- 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.)
- Granted
Links
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図はこの考案の実施例になるスクエア４エ
ンジンの縦断後面図、第２図は第１図エンジンの
一部切欠いた平面図、第３図は第１図エンジンの
動弁機構を示す側面図、第４図は第１図エンジン
を搭載した自動２輪車の側面図である。
１ａ，１ｂ，１ｃ，１ｄ……シリンダ、２ａ，
２ｂ……クランク軸、３ａ，３ｂ，３ｃ，３ｄ…
…カム軸、４ａ，４ｂ……吸気バルブ、５ａ，５
ｂ……排気バルブ、６ａ，６ｂ……吸気カム、７
ａ，７ｂ……排気カム、８ａ，８ｂ，８ｃ，８ｄ
……吸気通路、９……排気通路、１０……シリン
ダヘツド、１１……ヘツドカバー、１２……キヤ
ブレタ、１７ａ，１７ｂ，１７ｃ，１７ｄ……カ
ムドリブンギア、２２……カムドライブギア、２
３ａ，２３ｂ……アイドルギア、２４……軸孔、
２５ａ，２５ｂ……アイドルギア支軸、２６……
パイプ。
Figure 1 is a longitudinal cross-sectional rear view of a square 4 engine that is an embodiment of this invention, Figure 2 is a partially cutaway plan view of the engine shown in Figure 1, and Figure 3 is a side view showing the valve mechanism of the engine shown in Figure 1. 4 is a side view of a motorcycle equipped with the engine shown in FIG. 1. 1a, 1b, 1c, 1d... cylinder, 2a,
2b...Crankshaft, 3a, 3b, 3c, 3d...
...Camshaft, 4a, 4b...Intake valve, 5a, 5
b...Exhaust valve, 6a, 6b...Intake cam, 7
a, 7b...exhaust cam, 8a, 8b, 8c, 8d
...Intake passage, 9...Exhaust passage, 10...Cylinder head, 11...Head cover, 12...Carburetor, 17a, 17b, 17c, 17d...Cam driven gear, 22...Cam drive gear, 2
3a, 23b...Idle gear, 24...Shaft hole,
25a, 25b...Idle gear support shaft, 26...
pipe.
Claims (1)
通の前後２本のカム軸によつて制御され、各シリ
ンダの吸気通路がこの２本のカム軸の間を通つて
シリンダ軸心とほぼ平行に導入された多気筒エン
ジンにおいて、隣接する２つの吸気通路を横切つ
てシリンダヘツドを貫通するカム軸と平行な軸孔
が開設され、その軸孔の両吸気通路間にアイドル
ギア支軸が軸合され、かつ両吸気通路内壁にパイ
プが嵌着されて、上記アイドルギア支軸両端をパ
イプ外面でスラスト方向に拘束し、このアイドル
ギア支軸に回転自在に軸支されたアイドルギアの
両側に、前記前後２本のカム軸に固定されたカム
ドリブンギアが噛み合されたことを特徴とするエ
ンジンのカム軸駆動装置。 The intake and exhaust valves of each cylinder arranged in a horizontal row are controlled by two common front and rear camshafts, and the intake passage of each cylinder passes between these two camshafts and runs almost parallel to the cylinder axis. In the introduced multi-cylinder engine, a shaft hole parallel to the camshaft was opened that crossed two adjacent intake passages and penetrated the cylinder head, and the idle gear support shaft was aligned between the two intake passages of the shaft hole. and a pipe is fitted to the inner wall of both intake passages, and both ends of the idle gear support shaft are restrained in the thrust direction by the outer surface of the pipe, and on both sides of the idle gear rotatably supported by the idle gear support shaft, A camshaft drive device for an engine, characterized in that cam driven gears fixed to the two front and rear camshafts are engaged with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5906688U JPH0712641Y2 (en) | 1988-04-30 | 1988-04-30 | Engine camshaft drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5906688U JPH0712641Y2 (en) | 1988-04-30 | 1988-04-30 | Engine camshaft drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01162002U true JPH01162002U (en) | 1989-11-10 |
| JPH0712641Y2 JPH0712641Y2 (en) | 1995-03-29 |
Family
ID=31284854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5906688U Expired - Lifetime JPH0712641Y2 (en) | 1988-04-30 | 1988-04-30 | Engine camshaft drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712641Y2 (en) |
-
1988
- 1988-04-30 JP JP5906688U patent/JPH0712641Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0712641Y2 (en) | 1995-03-29 |
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