GB2263942A - Valve control apparatus - Google Patents
Valve control apparatusInfo
- Publication number
- GB2263942A GB2263942A GB9307582A GB9307582A GB2263942A GB 2263942 A GB2263942 A GB 2263942A GB 9307582 A GB9307582 A GB 9307582A GB 9307582 A GB9307582 A GB 9307582A GB 2263942 A GB2263942 A GB 2263942A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- valve means
- piston
- chamber
- 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.)
- Withdrawn
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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention relates to valve control apparatus for controlling the opening and closing of an inlet and/or exhaust valve of an engine or compressor. With reference to Figure 2, the apparatus comprises a piston and cylinder arrangement (40) having at least one chamber (44) and a piston (42) connected to the inlet or exhaust valve (21, 22) such that motion of the piston (42) within the cylinder (41) causes motion of the inlet or exhaust valve (21, 22). The apparatus also comprises means (11) for connection to a source of pressurised fluid (12) and means (13) for connection to an exhaust for pressurised fluid (14). The apparatus further comprises an electrical or electronic control device (23) and a valve means (100) controlled by the control device (23). The valve means (100) has three operating conditions, a first in which the valve means (100) connects a first chamber (44) of the piston and cylinder arrangement (40) to the source of pressurised fluid (12), a second in which the valve means (100) connects the first chamber (44) to the exhaust for pressurised fluid (14) and a third in which the valve means (100) isolates the first chamber (44) to prevent flow of fluid into or out of the chamber. The control device (23) controls motion of the piston (42) by selectively controlling the valve means (100) to operate in one of the three operating conditions and by controlling the length of time that the valve means (10O) operates in the chosen operating condition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9307582A GB2263942A (en) | 1990-10-16 | 1993-04-13 | Valve control apparatus |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909022439A GB9022439D0 (en) | 1990-10-16 | 1990-10-16 | A method and apparatus for testing an internal combustion engine |
GB909022440A GB9022440D0 (en) | 1990-10-16 | 1990-10-16 | Engine valve control apparatus |
GB909022448A GB9022448D0 (en) | 1990-10-16 | 1990-10-16 | An actuator |
GB919102696A GB9102696D0 (en) | 1990-10-16 | 1991-02-08 | Engine valve control apparatus |
PCT/GB1991/001804 WO1992007174A1 (en) | 1990-10-16 | 1991-10-16 | Valve control apparatus |
GB9307582A GB2263942A (en) | 1990-10-16 | 1993-04-13 | Valve control apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9307582D0 GB9307582D0 (en) | 1993-06-16 |
GB2263942A true GB2263942A (en) | 1993-08-11 |
Family
ID=27517006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9307582A Withdrawn GB2263942A (en) | 1990-10-16 | 1993-04-13 | Valve control apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2263942A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2288437A (en) * | 1994-04-14 | 1995-10-18 | Ford Motor Co | Control of engine intake and exhaust valve timing |
CN103953427A (en) * | 2014-03-21 | 2014-07-30 | 哈尔滨工程大学 | Electro-hydraulic driving exhaust mechanism |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844528A (en) * | 1971-12-30 | 1974-10-29 | P Massie | Electrically operated hydraulic valve particularly adapted for pollution-free electronically controlled internal combustion engine |
JPS6095115A (en) * | 1983-10-31 | 1985-05-28 | Isuzu Motors Ltd | Electronic-controlled hydraulic-driven valve device in internal-combustion engine |
EP0143128A1 (en) * | 1983-11-29 | 1985-06-05 | Paul Julian Moloney | Valve operating mechanism for internal combustion and like-valved engines |
-
1993
- 1993-04-13 GB GB9307582A patent/GB2263942A/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844528A (en) * | 1971-12-30 | 1974-10-29 | P Massie | Electrically operated hydraulic valve particularly adapted for pollution-free electronically controlled internal combustion engine |
JPS6095115A (en) * | 1983-10-31 | 1985-05-28 | Isuzu Motors Ltd | Electronic-controlled hydraulic-driven valve device in internal-combustion engine |
EP0143128A1 (en) * | 1983-11-29 | 1985-06-05 | Paul Julian Moloney | Valve operating mechanism for internal combustion and like-valved engines |
Non-Patent Citations (5)
Title |
---|
1970,KRAUSSKOPF,MAINZ see page 64;figure 64 * |
1985 & JP,A,60 095 115 (ISUZU) 28 May 1985 see abstract * |
PATENT ABSTRACTS OF JAPAN. vol.9,no.242(M-417)(1965)28 September * |
see page 68;figure 72 * |
ZOEBL 'schaltplane der olhydraulik volume 12 third edition ' * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2288437A (en) * | 1994-04-14 | 1995-10-18 | Ford Motor Co | Control of engine intake and exhaust valve timing |
GB2288437B (en) * | 1994-04-14 | 1998-02-04 | Ford Motor Co | Adaptive control of camless valvetrain |
CN103953427A (en) * | 2014-03-21 | 2014-07-30 | 哈尔滨工程大学 | Electro-hydraulic driving exhaust mechanism |
Also Published As
Publication number | Publication date |
---|---|
GB9307582D0 (en) | 1993-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |