JPH0224016U - - Google Patents
Info
- Publication number
- JPH0224016U JPH0224016U JP10301888U JP10301888U JPH0224016U JP H0224016 U JPH0224016 U JP H0224016U JP 10301888 U JP10301888 U JP 10301888U JP 10301888 U JP10301888 U JP 10301888U JP H0224016 U JPH0224016 U JP H0224016U
- Authority
- JP
- Japan
- Prior art keywords
- decompression
- camshaft
- needle
- compressed state
- combustion engine
- 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
- 230000006837 decompression Effects 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000004880 explosion Methods 0.000 claims 2
Landscapes
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は、この考案の実施例を示すカム軸部分
の縦断面図、第２図は、カム軸から排気弁までの
構造を示すエンジン本体の要部縦断面図、第３図
〜第６図は、遠心ウエイトの動作を示す側面図、
第７図は、この考案の別の実施例を示すカム軸部
分の縦断面図、第８図は、同じく更に別の実施例
を示すカム軸部分の縦断面図である。
１……排気弁、５……カム軸、１３，２０……
デコンプニードル、１４……支軸、１５，２１…
…デコンプカム、１６……遠心ウエイト。
Fig. 1 is a longitudinal sectional view of the camshaft portion showing an embodiment of this invention, Fig. 2 is a longitudinal sectional view of the main part of the engine body showing the structure from the camshaft to the exhaust valve, and Figs. The figure is a side view showing the operation of the centrifugal weight.
FIG. 7 is a longitudinal sectional view of a camshaft portion showing another embodiment of this invention, and FIG. 8 is a longitudinal sectional view of a camshaft portion showing still another embodiment. 1... Exhaust valve, 5... Camshaft, 13, 20...
Decompression needle, 14... Support shaft, 15, 21...
...Decomp cam, 16...Centrifugal weight.
Claims (1)
デコンプニードルを差し込み、このデコンプニー
ドルを突出させることにより圧縮又は爆発行程中
に吸気弁若しくは排気弁を開いて無圧縮状態とす
るデコンプ装置において、前記カム軸の軸方向に
、そのカム軸の軸芯より偏心し、かつ、前記ニー
ドルを突出させるデコンプカムを備えた支軸を回
転自在に挿入するとともに、カム軸の回転速度に
応じて前記の支軸軸芯を中心として回動動作する
遠心ウエイトを、カム軸軸端においてその支軸へ
一体に設けたことを特徴とする内燃機関の自動デ
コンプ装置。 ２ 圧縮行程中に無圧縮状態とするデコンプニー
ドルと爆発行程中に無圧縮状態とするデコンプニ
ードルを夫々カム軸へ差し込み、これらのデコン
プニードルに対応するデコンプカムを同一の支軸
に設けた請求項１記載の内燃機関の自動デコンプ
装置。[Scope of Claim for Utility Model Registration] 1. A decompression needle is inserted in the diametrical direction of the camshaft that opens and closes the intake and exhaust valves, and by protruding the decompression needle, the intake valve or exhaust valve can be opened and closed during the compression or explosion stroke. In a decompression device that puts the camshaft into a compressed state, a support shaft is rotatably inserted in the axial direction of the camshaft and is eccentric from the axial center of the camshaft and is equipped with a decompression cam that projects the needle. An automatic decompression device for an internal combustion engine, characterized in that a centrifugal weight that rotates about the spindle axis according to the rotational speed is integrally provided to the spindle at the end of the camshaft shaft. 2. Claim 1, in which a decompression needle that is in a non-compressed state during the compression stroke and a decompression needle that is in a non-compressed state during the explosion stroke are inserted into the camshaft, and decompression cams corresponding to these decompression needles are provided on the same support shaft. Automatic decompression device for the internal combustion engine described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10301888U JPH0224016U (en) | 1988-08-02 | 1988-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10301888U JPH0224016U (en) | 1988-08-02 | 1988-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0224016U true JPH0224016U (en) | 1990-02-16 |
Family
ID=31333458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10301888U Pending JPH0224016U (en) | 1988-08-02 | 1988-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0224016U (en) |
-
1988
- 1988-08-02 JP JP10301888U patent/JPH0224016U/ja active Pending
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