GB1303080A - - Google Patents

Info

Publication number
GB1303080A
GB1303080A GB3082370A GB1303080DA GB1303080A GB 1303080 A GB1303080 A GB 1303080A GB 3082370 A GB3082370 A GB 3082370A GB 1303080D A GB1303080D A GB 1303080DA GB 1303080 A GB1303080 A GB 1303080A
Authority
GB
United Kingdom
Prior art keywords
inlet manifold
manifold pressure
engine
tappets
cylinder
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.)
Expired
Application number
GB3082370A
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
Application filed filed Critical
Publication of GB1303080A publication Critical patent/GB1303080A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0203—Variable control of intake and exhaust valves
    • F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0269—Controlling the valves to perform a Miller-Atkinson cycle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

1303080 Regulating IC engine valves J W SENIOR 21 May 1971 [25 June 1970] 30823/70 Heading F1B In a multi-cylinder I. C. engine, with means for varying the valve timing in accordance with inlet manifold pressure, a reduction in the inlet manifold pressure causes delay in the closing of the respective inlet valves so that a fresh mixture charge which has been inducted, is partially returned to the inlet manifold and the exhaust valve opening is advanced so that soon after the mixture is ignited the cylinder is opened to atmosphere. The inlet manifold pressure acts within bellows 36 which moves a cross-head 42 thereby causing the rotation of pivots 52, 54 about the centres of the respective cam shaft 32, 34. Cam followers 48, 50 are pivoted at 52, 54 and straddle the respective valve tappets so that curved portions 60 bear on shoulders 62 formed on the opposite sides of the tappets. The followers have flat surfaces 64 which coincide with the upper tappet surface during normal engine operation. When inlet manifold pressure falls the cam followers move to the chain dotted line position to vary the valve timing.
GB3082370A 1970-06-25 1970-06-25 Expired GB1303080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3082370 1970-06-25

Publications (1)

Publication Number Publication Date
GB1303080A true GB1303080A (en) 1973-01-17

Family

ID=10313694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3082370A Expired GB1303080A (en) 1970-06-25 1970-06-25

Country Status (1)

Country Link
GB (1) GB1303080A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332699A1 (en) * 1982-09-10 1984-03-15 Toyo Kogyo Co. Ltd., Hiroshima VALVE CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE
US4552112A (en) * 1983-07-25 1985-11-12 Mazda Motor Corporation Valve timing control for internal combustion engines
US4580533A (en) * 1983-03-24 1986-04-08 Mazda Motor Corporation Valve mechanism having variable valve timing
GB2172653A (en) * 1984-12-12 1986-09-24 Stidworthy Frederick M Converting rotary motion to linear motion eg cam rotation to valve reciprocation
EP0328195A2 (en) * 1988-02-08 1989-08-16 Magnavox Electronic Systems Company Pneumatic electronic valve actuator
GB2245647A (en) * 1990-06-27 1992-01-08 Ford Motor Co Variable i.c. engine valve timing
WO2005116416A1 (en) * 2003-03-11 2005-12-08 Bryant Clyde C Cold-air induction engine
US8215292B2 (en) 1996-07-17 2012-07-10 Bryant Clyde C Internal combustion engine and working cycle
DE102016101657A1 (en) * 2016-01-29 2017-08-03 Uwe Eisenbeis Variable valve train with joint adjustment of the valve lift for several partial drives

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332699A1 (en) * 1982-09-10 1984-03-15 Toyo Kogyo Co. Ltd., Hiroshima VALVE CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE
US4582029A (en) * 1982-09-10 1986-04-15 Mazda Motor Corporation Valve timing control system for internal combustion engine
US4580533A (en) * 1983-03-24 1986-04-08 Mazda Motor Corporation Valve mechanism having variable valve timing
US4552112A (en) * 1983-07-25 1985-11-12 Mazda Motor Corporation Valve timing control for internal combustion engines
GB2172653A (en) * 1984-12-12 1986-09-24 Stidworthy Frederick M Converting rotary motion to linear motion eg cam rotation to valve reciprocation
GB2172653B (en) * 1984-12-12 1989-03-30 Stidworthy Frederick M Arrangements for converting rotary motion to linear motion
EP0328195A2 (en) * 1988-02-08 1989-08-16 Magnavox Electronic Systems Company Pneumatic electronic valve actuator
EP0328195A3 (en) * 1988-02-08 1990-03-07 Magnavox Electronic Systems Company Pneumatic electronic valve actuator
GB2245647A (en) * 1990-06-27 1992-01-08 Ford Motor Co Variable i.c. engine valve timing
US8215292B2 (en) 1996-07-17 2012-07-10 Bryant Clyde C Internal combustion engine and working cycle
WO2005116416A1 (en) * 2003-03-11 2005-12-08 Bryant Clyde C Cold-air induction engine
DE102016101657A1 (en) * 2016-01-29 2017-08-03 Uwe Eisenbeis Variable valve train with joint adjustment of the valve lift for several partial drives

Similar Documents

Publication Publication Date Title
IN155023B (en)
GB967697A (en) Internal combustion engine valve gear
JPS55137305A (en) Valve lift for internal combustion engine
GB1330782A (en) Devices for operating the valves of internal combustion engines
JPS643208A (en) Tappet valve system for internal combustion engine
GB1521621A (en) Four-stroke internal combustion engines
GB1303080A (en)
JPS57102506A (en) Engine with four valves and one overhead cam shaft
GB1291528A (en) Valve timing system in an automotive internal combustion engine
GB1496513A (en) Valve operating mechanisms for internal combustion engine
GB1497124A (en) Internal combustion engine valve gear
GB1108782A (en) Improvements in internal-combustion engines
GB746800A (en) Improvements in and relating to pressure charged internal combustion engines
JPS55131515A (en) Three-valve type internal combustion engine
JPS5510065A (en) Movable valve device of internal combustion engine
JPS5634914A (en) Residual gas controller for internal combustion engine
GB1268503A (en) Reciprocating-piston internal combustion engines with overhead camshafts
GB1524029A (en) Internal combustion engine valve operating mechanism
GB716828A (en) Improvements in internal combustion engine valve gear
JPS5791320A (en) Intake device for internal combustion engine
GB637950A (en) Improvements in cams for operating valves of internal combustion engines
GB1231349A (en)
GB1128266A (en) Improvements in or relating to internal combustion engines
GB960131A (en) An improved internal combustion engine
GB809027A (en) Improvements relating to valve operating mechanism for internal combustion engines

Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee