JPH0475116U - - Google Patents
Info
- Publication number
- JPH0475116U JPH0475116U JP11861890U JP11861890U JPH0475116U JP H0475116 U JPH0475116 U JP H0475116U JP 11861890 U JP11861890 U JP 11861890U JP 11861890 U JP11861890 U JP 11861890U JP H0475116 U JPH0475116 U JP H0475116U
- Authority
- JP
- Japan
- Prior art keywords
- speed cam
- speed
- low
- variable valve
- valve timing
- 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 Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図は本考案に係る可変バルブタイミング機
構の一実施例を示す組立斜視図、第２図は第１図
の高速用カムのカムリフト曲線の開弁時のランプ
区間を示す拡大図、第３図は可変バルブタイミン
グ機構の組立斜視図、第４図は第３図の矢線−
に沿う断面図、第５図は第４図の可変バルブタ
イミング機構のカムリフト曲線を示すグラフ、第
６図は第５図の要部拡大図、第７図は第６図のラ
ンプ高さを変更した場合を示す図である。
１……可変バルブタイミング機構、２，３……
吸気バルブ、４，４′……ロツカシヤフト、５…
…Ｔ型ロツカアーム、６……低速用ロツカアーム
、７……高速用ロツカアーム、６ｂ，７ｂ……ピ
ストン孔、８，９……ピストン、１０，１１……
ローラベアリング、１３……カムシヤフト、１４
……低速用カム、１５，１５′……高速用カム。
1 is an assembled perspective view showing an embodiment of the variable valve timing mechanism according to the present invention; FIG. 2 is an enlarged view showing the ramp section of the cam lift curve of the high-speed cam shown in FIG. 1 when the valve is opened; The figure is an assembled perspective view of the variable valve timing mechanism, and Figure 4 is the arrow line in Figure 3.
Figure 5 is a graph showing the cam lift curve of the variable valve timing mechanism in Figure 4, Figure 6 is an enlarged view of the main part of Figure 5, and Figure 7 is a modified ramp height from Figure 6. FIG. 1... Variable valve timing mechanism, 2, 3...
Intake valve, 4, 4'...Rotsuka shaft, 5...
...T type rocker arm, 6...Low speed rocker arm, 7...High speed rocker arm, 6b, 7b...Piston hole, 8,9...Piston, 10,11...
Roller bearing, 13...Camshaft, 14
...Low speed cam, 15,15'...High speed cam.
Claims (1)
ム又は高速用ロツカアームを低速用カム又は高速
用カムにより選択的に駆動する可変バルブタイミ
ング機構において、前記高速用カムのランプ高さ
を前記低速用カムのランプ高さよりも高くしたこ
とを特徴とする可変バルブタイミング機構。 In a variable valve timing mechanism in which a low-speed rocker arm or a high-speed rocker arm is selectively driven by a low-speed cam or a high-speed cam depending on the operating state of the engine, the ramp height of the high-speed cam is set to the ramp height of the low-speed cam. The variable valve timing mechanism is characterized by being higher than the height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11861890U JPH0475116U (en) | 1990-11-13 | 1990-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11861890U JPH0475116U (en) | 1990-11-13 | 1990-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0475116U true JPH0475116U (en) | 1992-06-30 |
Family
ID=31866564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11861890U Pending JPH0475116U (en) | 1990-11-13 | 1990-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0475116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06123207A (en) * | 1992-10-08 | 1994-05-06 | Nissan Motor Co Ltd | Intake/exhaust valve operating device of internal combustion engine |
-
1990
- 1990-11-13 JP JP11861890U patent/JPH0475116U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06123207A (en) * | 1992-10-08 | 1994-05-06 | Nissan Motor Co Ltd | Intake/exhaust valve operating device of internal combustion engine |
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