JPH0475112U - - Google Patents
Info
- Publication number
- JPH0475112U JPH0475112U JP11926490U JP11926490U JPH0475112U JP H0475112 U JPH0475112 U JP H0475112U JP 11926490 U JP11926490 U JP 11926490U JP 11926490 U JP11926490 U JP 11926490U JP H0475112 U JPH0475112 U JP H0475112U
- Authority
- JP
- Japan
- Prior art keywords
- clearance adjustment
- adjustment screw
- servo motor
- valve stem
- stem end
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図は本考案の一実施例によるバルブクリア
ランス調整装置の概略構成図である。
１……排気バルブ、１ａ……バルブステム、１
ｂ……バルブステムエンド、２……スプリングリ
テーナ、３……バルブスプリング、４……シリン
ダヘツド、５……排気ポート、６……ロツカアー
ム、７……カムシヤフト、８……カム、９……ク
リアランス調整ネジ、１０……ナツト部材、１１
……サーボモータ、１２……ドライバ、１３……
サーボモータ駆動ユニツト、１４……接触検出回
路、１５……リード線、１６……ロツクナツト。
FIG. 1 is a schematic diagram of a valve clearance adjusting device according to an embodiment of the present invention. 1...Exhaust valve, 1a...Valve stem, 1
b... Valve stem end, 2... Spring retainer, 3... Valve spring, 4... Cylinder head, 5... Exhaust port, 6... Locker arm, 7... Camshaft, 8... Cam, 9... Clearance. Adjustment screw, 10... Nut member, 11
... Servo motor, 12 ... Driver, 13 ...
Servo motor drive unit, 14... Contact detection circuit, 15... Lead wire, 16... Lock nut.
Claims (1)
調整ネジを絶縁部材を介して螺合したロツカアー
ムと、上記クリアランス調整ネジをドライバを介
して回転操作することでバルブステムエンドに対
し進退させるサーボモータと、上記クリアランス
調整ネジとバルブステムエンドとを接点としてそ
のオン・オフ状態を検出する接触検出回路と、こ
の接触検出回路からのオン・オフ信号に基づき上
記サーボモータを回転駆動するサーボモータ駆動
ユニツトとを備え、 上記サーボモータ駆動ユニツトは、接触検出回
路からのオフ信号に基づきサーボモータを正転し
てクリアランス調整ネジをバルブステムエンドに
接触させ、オン信号に基づきサーボモータを所定
量逆転してクリアランス調整ネジとバルブステム
エンドとの間に所定値のバルブクリアランスを形
成するよう構成してなるエンジンのバルブクリア
ランス調整装置。[Scope of Claim for Utility Model Registration] A rocker arm in which a clearance adjustment screw that contacts the valve stem end is screwed together via an insulating member, and the clearance adjustment screw can be moved forward and backward relative to the valve stem end by rotating the clearance adjustment screw using a screwdriver. a servo motor, a contact detection circuit that uses the clearance adjustment screw and the valve stem end as contact points to detect its on/off state, and a servo that rotationally drives the servo motor based on the on/off signal from the contact detection circuit. The servo motor drive unit rotates the servo motor forward to bring the clearance adjustment screw into contact with the valve stem end based on the off signal from the contact detection circuit, and rotates the servo motor a predetermined amount based on the on signal. A valve clearance adjustment device for an engine configured to rotate in reverse to form a predetermined value of valve clearance between a clearance adjustment screw and a valve stem end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11926490U JPH0475112U (en) | 1990-11-14 | 1990-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11926490U JPH0475112U (en) | 1990-11-14 | 1990-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0475112U true JPH0475112U (en) | 1992-06-30 |
Family
ID=31867232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11926490U Pending JPH0475112U (en) | 1990-11-14 | 1990-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0475112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012180766A (en) * | 2011-02-28 | 2012-09-20 | Mitsubishi Heavy Ind Ltd | System and method for controlling valve train of internal combustion engine |
-
1990
- 1990-11-14 JP JP11926490U patent/JPH0475112U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012180766A (en) * | 2011-02-28 | 2012-09-20 | Mitsubishi Heavy Ind Ltd | System and method for controlling valve train of internal combustion engine |
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