JPH0240902U - - Google Patents
Info
- Publication number
- JPH0240902U JPH0240902U JP12079588U JP12079588U JPH0240902U JP H0240902 U JPH0240902 U JP H0240902U JP 12079588 U JP12079588 U JP 12079588U JP 12079588 U JP12079588 U JP 12079588U JP H0240902 U JPH0240902 U JP H0240902U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- rocker arm
- rotation speed
- engine
- rocker
- 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
- 230000002265 prevention Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図は本考案の一実施例を示すシリンダヘツ
ドの断面図、第２図は第１図に示したシリンダヘ
ツドの要部平面図、第３図は第１図の部分の一
部を断面で示した拡大平面図である。
１０……シリンダヘツド、１２……吸気弁、１
８……排気弁、２２及び２６……弁ばね、３０…
…カム軸、３４……吸気カム、３６……排気カム
、３８及び４０……ロツカアーム、４２及び４４
……ロツカシヤフト、４６……カムベアリングキ
ヤツプ、４８……キヤツプボルト、５０……ロツ
カアーム移動防止用スプリング。
Fig. 1 is a sectional view of a cylinder head showing an embodiment of the present invention, Fig. 2 is a plan view of the main part of the cylinder head shown in Fig. 1, and Fig. 3 is a sectional view of a part of the part shown in Fig. 1. FIG. 10...Cylinder head, 12...Intake valve, 1
8... Exhaust valve, 22 and 26... Valve spring, 30...
...Camshaft, 34...Intake cam, 36...Exhaust cam, 38 and 40...Rotsuka arm, 42 and 44
...Rotsuka shaft, 46...Cam bearing cap, 48...Cap bolt, 50...Rotsuka arm movement prevention spring.
Claims (1)
カアーム、上記ロツカアームとカムベアリングキ
ヤツプ等固定部材との間に介装された形状記憶合
金製のロツカアーム移動防止用スプリング、及び
エンジンの回転数が設定回転数を超えたとき上記
スプリングを加熱して同スプリングにロツカアー
ムを閉弁方向に付勢するばね力を生起させる加熱
装置を具備してなることを特徴とするエンジンの
動弁装置。 The rocker arm is swingably supported on the rocker shaft, the rocker arm movement prevention spring made of a shape memory alloy is interposed between the rocker arm and a fixed member such as a cam bearing cap, and the engine rotation speed is adjusted to the set rotation speed. 1. A valve operating system for an engine, comprising a heating device that heats the spring and generates a spring force in the spring that biases the locking arm in the valve closing direction when the temperature exceeds the limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12079588U JPH0240902U (en) | 1988-09-14 | 1988-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12079588U JPH0240902U (en) | 1988-09-14 | 1988-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0240902U true JPH0240902U (en) | 1990-03-20 |
Family
ID=31367227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12079588U Pending JPH0240902U (en) | 1988-09-14 | 1988-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240902U (en) |
-
1988
- 1988-09-14 JP JP12079588U patent/JPH0240902U/ja active Pending
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