GB2263942A - Valve control apparatus - Google Patents

Valve control apparatus

Info

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Withdrawn
Application number
GB9307582A
Other versions
GB9307582D0 (en
Inventor
David Burke
Giles Muddell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lotus Cars Ltd
Original Assignee
Lotus Cars Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB909022439A external-priority patent/GB9022439D0/en
Priority claimed from GB909022440A external-priority patent/GB9022440D0/en
Priority claimed from GB909022448A external-priority patent/GB9022448D0/en
Priority claimed from GB919102696A external-priority patent/GB9102696D0/en
Priority claimed from PCT/GB1991/001804 external-priority patent/WO1992007174A1/en
Application filed by Lotus Cars Ltd filed Critical Lotus Cars Ltd
Priority to GB9307582A priority Critical patent/GB2263942A/en
Publication of GB9307582D0 publication Critical patent/GB9307582D0/en
Publication of GB2263942A publication Critical patent/GB2263942A/en
Withdrawn legal-status Critical Current

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.
GB9307582A 1990-10-16 1993-04-13 Valve control apparatus Withdrawn GB2263942A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)