JPS643207A - Tappet valve system for internal combustion engine - Google Patents
Tappet valve system for internal combustion engineInfo
- Publication number
- JPS643207A JPS643207A JP15592787A JP15592787A JPS643207A JP S643207 A JPS643207 A JP S643207A JP 15592787 A JP15592787 A JP 15592787A JP 15592787 A JP15592787 A JP 15592787A JP S643207 A JPS643207 A JP S643207A
- Authority
- JP
- Japan
- Prior art keywords
- oil pressure
- piston
- combustion engine
- internal combustion
- pressure chamber
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
- F01L1/34406—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
PURPOSE:To control the opening/closing timing continuously, by setting a servo valve between oil pressure feeding routes toward an oil pressure chamber, which presses a piston set coaxially with a rotary shaft and a time regulating ring, and a relief route of said oil pressure chamber. CONSTITUTION:A piston 8 is set coaxially with a rotary shaft 6 and a time regulating ring 4, through helical gears 19-22. Oil pressure feeding routes 34, 36, 38 and an oil pressure relief route 47 are connected to an oil pressure chamber 18 which presses the piston 8. A servo valve 9 formed of a sleeve 29 which is connected and sequentially moved with the piston 8, and a spool 30 which is slidably fitted in the sleeve 29, is set between the oil pressure feeding routes 34, 36, 38 and the oil pressure relief route 47. The piston 8 moves for the quantity of axial movement of the spool 30. In this way, the opening/closing timing can be controlled continuously.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15592787A JPS643207A (en) | 1987-06-23 | 1987-06-23 | Tappet valve system for internal combustion engine |
US07/206,847 US4862843A (en) | 1987-06-23 | 1988-06-15 | Valve timing control device for use in internal combustion engine |
CA000570058A CA1331943C (en) | 1987-06-23 | 1988-06-22 | Valve timing control device for use in internal combustion engine |
EP88305805A EP0296885B1 (en) | 1987-06-23 | 1988-06-23 | Valve timing control device for use in internal combustion engine |
DE8888305805T DE3872963T2 (en) | 1987-06-23 | 1988-06-23 | DEVICE FOR TIMING THE VALVES OF AN INTERNAL COMBUSTION ENGINE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15592787A JPS643207A (en) | 1987-06-23 | 1987-06-23 | Tappet valve system for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS643207A true JPS643207A (en) | 1989-01-09 |
JPH0353447B2 JPH0353447B2 (en) | 1991-08-15 |
Family
ID=15616555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15592787A Granted JPS643207A (en) | 1987-06-23 | 1987-06-23 | Tappet valve system for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643207A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4967701A (en) * | 1989-01-12 | 1990-11-06 | Nippondenso Co., Ltd. | Valve timing adjuster |
-
1987
- 1987-06-23 JP JP15592787A patent/JPS643207A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4967701A (en) * | 1989-01-12 | 1990-11-06 | Nippondenso Co., Ltd. | Valve timing adjuster |
Also Published As
Publication number | Publication date |
---|---|
JPH0353447B2 (en) | 1991-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |