GB0907745D0 - Switchable valve actuation system - Google Patents

Switchable valve actuation system

Info

Publication number
GB0907745D0
GB0907745D0 GBGB0907745.4A GB0907745A GB0907745D0 GB 0907745 D0 GB0907745 D0 GB 0907745D0 GB 0907745 A GB0907745 A GB 0907745A GB 0907745 D0 GB0907745 D0 GB 0907745D0
Authority
GB
United Kingdom
Prior art keywords
actuation system
valve actuation
switchable valve
switchable
valve
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Withdrawn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
GBGB0907745.4A
Other versions
GB2470025A (en
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.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to GB0907745A priority Critical patent/GB2470025A/en
Publication of GB0907745D0 publication Critical patent/GB0907745D0/en
Publication of GB2470025A publication Critical patent/GB2470025A/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Withdrawn legal-status Critical Current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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
    • F02B69/06—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different cycles, e.g. convertible from two-stroke to four stroke
    • 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
    • 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
    • F01L1/36—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle
    • F01L1/38—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle for engines with other than four-stroke cycle, e.g. with two-stroke cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

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)
GB0907745A 2009-05-06 2009-05-06 Switchable valve actuation system for a selectable 2-stroke/ 4-stroke i.c engine Withdrawn GB2470025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0907745A GB2470025A (en) 2009-05-06 2009-05-06 Switchable valve actuation system for a selectable 2-stroke/ 4-stroke i.c engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0907745A GB2470025A (en) 2009-05-06 2009-05-06 Switchable valve actuation system for a selectable 2-stroke/ 4-stroke i.c engine

Publications (2)

Publication Number Publication Date
GB0907745D0 true GB0907745D0 (en) 2009-06-10
GB2470025A GB2470025A (en) 2010-11-10

Family

ID=40792284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0907745A Withdrawn GB2470025A (en) 2009-05-06 2009-05-06 Switchable valve actuation system for a selectable 2-stroke/ 4-stroke i.c engine

Country Status (1)

Country Link
GB (1) GB2470025A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6000086B2 (en) * 2012-11-20 2016-09-28 株式会社オティックス Variable valve mechanism for internal combustion engine
GB2519109A (en) * 2013-10-09 2015-04-15 Eaton Srl A valve train assembly
CN104141519B (en) * 2014-07-18 2016-05-18 燕山大学 A kind of variable stroke engine distribution switching mechanism
DE202015003059U1 (en) 2015-04-25 2015-07-30 Tobias Klauß Valve gear for the switchable operation of an internal combustion engine in two- or four-stroke
CN107842407B (en) * 2017-09-30 2019-11-05 中国北方发动机研究所(天津) A kind of variable valve actuator for air that 2/4 stroke can be achieved and exchanges
CN108412573B (en) * 2018-03-05 2019-07-09 中国北方发动机研究所(天津) A kind of mechanical type variable valve device
CN108506059B (en) * 2018-03-05 2019-09-06 中国北方发动机研究所(天津) A kind of mechanical type variable valve driving device
DE102020113224A1 (en) 2020-05-15 2021-11-18 Schaeffler Technologies AG & Co. KG Rocker arm arrangement for a valve train of an internal combustion engine
GB2625019B (en) * 2021-09-01 2025-02-12 Cummins Inc Rocker systems with cylinder deactivation and selective valve lift capabilities

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000170545A (en) * 1998-12-08 2000-06-20 Honda Motor Co Ltd Variable cycle internal combustion engine and control device therefor
GB0313435D0 (en) * 2003-06-11 2003-07-16 Ma Thomas T H Selectable 2-stroke/4-stroke valve actuation system
US7036465B2 (en) * 2004-03-17 2006-05-02 Ricardo, Inc. Two-stroke and four-stroke switching mechanism

Also Published As

Publication number Publication date
GB2470025A (en) 2010-11-10

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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)