WO2013020008A3 - Internal combustion engine valvetrain - Google Patents

Internal combustion engine valvetrain Download PDF

Info

Publication number
WO2013020008A3
WO2013020008A3 PCT/US2012/049419 US2012049419W WO2013020008A3 WO 2013020008 A3 WO2013020008 A3 WO 2013020008A3 US 2012049419 W US2012049419 W US 2012049419W WO 2013020008 A3 WO2013020008 A3 WO 2013020008A3
Authority
WO
WIPO (PCT)
Prior art keywords
combustion engine
internal combustion
exhaust valves
valvetrain
engine valvetrain
Prior art date
Application number
PCT/US2012/049419
Other languages
French (fr)
Other versions
WO2013020008A2 (en
Inventor
David B. Roth
Christopher P. THOMAS
Original Assignee
Borgwarner Inc.
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 Borgwarner Inc. filed Critical Borgwarner Inc.
Priority to US14/236,663 priority Critical patent/US20140182535A1/en
Priority to CN201280034043.0A priority patent/CN103649514B/en
Priority to DE112012002759.0T priority patent/DE112012002759T5/en
Publication of WO2013020008A2 publication Critical patent/WO2013020008A2/en
Publication of WO2013020008A3 publication Critical patent/WO2013020008A3/en

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
    • 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
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
    • 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
    • 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
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve
    • 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
    • F02D13/028—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation for two-stroke engines
    • F02D13/0284—Variable control of exhaust valves 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • F01L1/44—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves
    • 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
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine
    • F01L2003/255—Valve configurations in relation to engine configured other than parallel or symmetrical relative to piston axis
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • 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
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • F01L2800/10—Providing exhaust gas recirculation [EGR]
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/01—Absolute values
    • 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)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

An internal combustion engine valvetrain for an internal combustion engine. The internal combustion engine Includes one or more cylinders with one or more intake valves, one or more blowdown exhaust valves, and one or more scavenge exhaust valves. In one example, the internal combustion engine valvetrain includes a first valve actuation mechanism to open and close the blowdown exhaust valves, and Includes a second valve actuation mechanism to open and close the scavenge exhaust valves.
PCT/US2012/049419 2011-08-04 2012-08-03 Internal combustion engine valvetrain WO2013020008A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US14/236,663 US20140182535A1 (en) 2011-08-04 2012-08-03 Internal combustion engine valvetrain
CN201280034043.0A CN103649514B (en) 2011-08-04 2012-08-03 Internal combustion valve mechanism
DE112012002759.0T DE112012002759T5 (en) 2011-08-04 2012-08-03 Engine valve train

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161515089P 2011-08-04 2011-08-04
US61/515,089 2011-08-04

Publications (2)

Publication Number Publication Date
WO2013020008A2 WO2013020008A2 (en) 2013-02-07
WO2013020008A3 true WO2013020008A3 (en) 2013-04-25

Family

ID=47629926

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/049419 WO2013020008A2 (en) 2011-08-04 2012-08-03 Internal combustion engine valvetrain

Country Status (4)

Country Link
US (1) US20140182535A1 (en)
CN (1) CN103649514B (en)
DE (1) DE112012002759T5 (en)
WO (1) WO2013020008A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2514789B (en) * 2013-06-04 2017-03-29 Jaguar Land Rover Ltd Exhaust turbocharger having different turbine geometries for separate exhaust streams
CN105431621A (en) * 2013-07-03 2016-03-23 博格华纳公司 Engine braking via advancing the exhaust valve
SE539214C2 (en) * 2013-12-05 2017-05-16 Scania Cv Ab Internal combustion engine, vehicles including such internal combustion engine and method for operating such internal combustion engine
KR101943488B1 (en) * 2016-04-07 2019-01-29 울산과학기술원 Electrode for electrochemcal device, method for manufacturing the same, and electrochemcal device including the same
US10138822B2 (en) * 2016-12-16 2018-11-27 Ford Global Technologies, Llc Systems and methods for a split exhaust engine system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125374A (en) * 1989-07-14 1992-06-30 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating arrangement for engine
KR20010037508A (en) * 1999-10-18 2001-05-07 이계안 Dohc diesel engine
US20040237918A1 (en) * 2000-09-29 2004-12-02 Mendler Edward Charles Valve control apparatus
US20060037578A1 (en) * 2004-08-20 2006-02-23 Hitachi, Ltd. Cylinder cutoff control apparatus of internal combustion engine
US20110000470A1 (en) * 2008-02-22 2011-01-06 Borgwarner Inc. Controlling exhaust gas flow divided between turbocharging and exhaust gas recirculating

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125374A (en) * 1989-07-14 1992-06-30 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating arrangement for engine
KR20010037508A (en) * 1999-10-18 2001-05-07 이계안 Dohc diesel engine
US20040237918A1 (en) * 2000-09-29 2004-12-02 Mendler Edward Charles Valve control apparatus
US20060037578A1 (en) * 2004-08-20 2006-02-23 Hitachi, Ltd. Cylinder cutoff control apparatus of internal combustion engine
US20110000470A1 (en) * 2008-02-22 2011-01-06 Borgwarner Inc. Controlling exhaust gas flow divided between turbocharging and exhaust gas recirculating

Also Published As

Publication number Publication date
CN103649514A (en) 2014-03-19
CN103649514B (en) 2016-10-12
WO2013020008A2 (en) 2013-02-07
US20140182535A1 (en) 2014-07-03
DE112012002759T5 (en) 2014-04-17

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