JPS6157112U - - Google Patents
Info
- Publication number
- JPS6157112U JPS6157112U JP14256784U JP14256784U JPS6157112U JP S6157112 U JPS6157112 U JP S6157112U JP 14256784 U JP14256784 U JP 14256784U JP 14256784 U JP14256784 U JP 14256784U JP S6157112 U JPS6157112 U JP S6157112U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- decompression
- intake
- stroke side
- exhaust
- 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
- 230000006837 decompression Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000004880 explosion Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図乃至第１０図は本考案の第一実施例に係
り、第１図はカムギヤ端面部分の図、第２図は第
１図のＡ−Ａ線断面図、第３図は第１図のＢ−Ｂ
線断面図、第４図は圧縮行程側コンプピンの斜視
図、第５図は爆発行程側デコンプピンの斜視図、
第６図はクランク角度に対するカムリフトを示す
図、第７図は圧縮行程におけるピストン位置と燃
焼室容積を示す説明図、第８図および第９図は第
２図のＣ−Ｃ線断面図で第８図はエンジン始動時
の動作説明図、第９図はエンジンの通常回転時の
動作説明図、第１０図は第１図の上面図、第１１
図は本考案の第二実施例に係り第１図と同様の上
面図、第１２図は従来例に係るエンジンのクラン
ク角度に対するカムリフトを示す図である。
１…カムシヤフト、２，３…吸気弁用および排
気弁用タペツト、４，５…吸気および排気カム、
６…カムギヤ、８，９…ピン孔、１０，１１…圧
縮行程側および爆発行程側デコンプピン、１５…
ウエイトレバー、３１，３２…圧縮行程側および
爆発行程側デコンプピン。
1 to 10 relate to the first embodiment of the present invention, in which FIG. 1 is a view of the end face of the cam gear, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. B-B
Line sectional view, Figure 4 is a perspective view of the compression stroke side comp pin, Figure 5 is a perspective view of the explosion stroke side decompression pin,
Fig. 6 is a diagram showing the cam lift with respect to the crank angle, Fig. 7 is an explanatory diagram showing the piston position and combustion chamber volume during the compression stroke, and Figs. 8 and 9 are cross-sectional views taken along the line CC in Fig. 2. Figure 8 is an explanatory diagram of the operation when starting the engine, Figure 9 is an explanatory diagram of the operation during normal engine rotation, Figure 10 is a top view of Figure 1, and Figure 11 is an explanatory diagram of the operation when the engine is started.
This figure is a top view similar to FIG. 1 according to a second embodiment of the present invention, and FIG. 12 is a diagram showing the cam lift with respect to the crank angle of an engine according to a conventional example. 1... Camshaft, 2, 3... Tappet for intake valves and exhaust valves, 4, 5... Intake and exhaust cams,
6... Cam gear, 8, 9... Pin hole, 10, 11... Compression stroke side and explosion stroke side decompression pin, 15...
Weight lever, 31, 32...compression stroke side and explosion stroke side decompression pins.
Claims (1)
受けるカムシヤフトの回転で該カムシヤフトに設
けた吸気カム、排気カムによりタペツトを動作し
て燃焼室に対する吸気弁、排気弁の開閉を行わせ
るものにおいて、前記カムギヤ端面に遠心力によ
り回動するウエイトレバーを設けるとともに、こ
のウエイトレバーの回動により吸気カムまたは排
気カム、あるいは吸気カムおよび排気カムのそれ
ぞれのカム面より突没させ、突出によりデコンプ
状態とし没入によりデコンプ解除させるようにし
た圧縮行程側および爆発行程側のデコンプピンを
設け、かつ前記圧縮行程側および爆発行程側のデ
コンプピンの突出によるデコンプ状態の区間をそ
れぞれ圧縮行程および爆発行程の全域あるいは一
部域になるように構成したことを特徴とするエン
ジンのデコンプ装置。 The end face of the cam gear in which the intake cam and the exhaust cam provided on the camshaft operate tappets to open and close the intake valve and the exhaust valve to the combustion chamber by the rotation of the camshaft which receives rotational force from the crankshaft through the cam gear. A weight lever is provided that rotates by centrifugal force, and the rotation of this weight lever causes it to protrude and retract from the respective cam surfaces of the intake cam or exhaust cam, or the intake cam and the exhaust cam. A decompression pin on the compression stroke side and an explosion stroke side is provided to release the decompression stroke, and the decompression state section due to the protrusion of the decompression pin on the compression stroke side and the explosion stroke side becomes the entire region or a part of the compression stroke and explosion stroke, respectively. An engine decompression device characterized in that it is configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14256784U JPH0217135Y2 (en) | 1984-09-20 | 1984-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14256784U JPH0217135Y2 (en) | 1984-09-20 | 1984-09-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6157112U true JPS6157112U (en) | 1986-04-17 |
| JPH0217135Y2 JPH0217135Y2 (en) | 1990-05-14 |
Family
ID=30700884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14256784U Expired JPH0217135Y2 (en) | 1984-09-20 | 1984-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0217135Y2 (en) |
-
1984
- 1984-09-20 JP JP14256784U patent/JPH0217135Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0217135Y2 (en) | 1990-05-14 |
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