WO2012071317A3 - Four stroke internal combustion engine having variable valve timing and method - Google Patents

Four stroke internal combustion engine having variable valve timing and method Download PDF

Info

Publication number
WO2012071317A3
WO2012071317A3 PCT/US2011/061629 US2011061629W WO2012071317A3 WO 2012071317 A3 WO2012071317 A3 WO 2012071317A3 US 2011061629 W US2011061629 W US 2011061629W WO 2012071317 A3 WO2012071317 A3 WO 2012071317A3
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
stroke internal
cylinder
predetermined range
Prior art date
Application number
PCT/US2011/061629
Other languages
French (fr)
Other versions
WO2012071317A2 (en
Inventor
Darryl Baldwin
Rohit Menon
Willibald Berlinger
Original Assignee
Caterpillar 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 Caterpillar Inc. filed Critical Caterpillar Inc.
Priority to CN201180065292.1A priority Critical patent/CN103328775B/en
Priority to DE112011103859T priority patent/DE112011103859T5/en
Publication of WO2012071317A2 publication Critical patent/WO2012071317A2/en
Publication of WO2012071317A3 publication Critical patent/WO2012071317A3/en

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
    • F02D13/0269—Controlling the valves to perform a Miller-Atkinson cycle
    • 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
    • F01L1/3442—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 using hydraulic chambers with variable volume to transmit the rotating force
    • 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
    • F01L2820/04—Sensors
    • F01L2820/041—Camshafts position or phase sensors
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

A four stroke internal combustion engine (100) includes at least one cylinder (104) and at least one intake valve (208) associated with the cylinder (104). The intake valve (208) is configured to open and close over a predetermined range of crankshaft rotation in accordance with a Miller thermodynamic cycle. An electronic controller (254) receives at least one input signal indicative of an amount of air and/or an amount of air/fuel mixture in cylinder (104). The electronic controller is configured to provide a timing phase signal (416) that operates to adjust a timing of operation of the intake valve (208) based on the input signal(s) such that a torque output of the engine (100) is maintained substantially constant over a predetermined range of engine speed (402) by shifting the predetermined range of crankshaft rotation.
PCT/US2011/061629 2010-11-22 2011-11-21 Four stroke internal combustion engine having variable valve timing and method WO2012071317A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201180065292.1A CN103328775B (en) 2010-11-22 2011-11-21 There is quartastroke engine and the method for VVT
DE112011103859T DE112011103859T5 (en) 2010-11-22 2011-11-21 Four-stroke internal combustion engine with variable valve timing and method therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/952,033 2010-11-22
US12/952,033 US20120125276A1 (en) 2010-11-22 2010-11-22 Four stroke internal combustion engine having variable valve timing and method

Publications (2)

Publication Number Publication Date
WO2012071317A2 WO2012071317A2 (en) 2012-05-31
WO2012071317A3 true WO2012071317A3 (en) 2012-07-19

Family

ID=46063122

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/061629 WO2012071317A2 (en) 2010-11-22 2011-11-21 Four stroke internal combustion engine having variable valve timing and method

Country Status (4)

Country Link
US (1) US20120125276A1 (en)
CN (1) CN103328775B (en)
DE (1) DE112011103859T5 (en)
WO (1) WO2012071317A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140026873A1 (en) * 2012-07-27 2014-01-30 Caterpillar Inc. Variable Miller Cycle for Reactivity Controlled Compression Ignition Engine and Method
US9279379B2 (en) 2013-08-29 2016-03-08 Kohler Co. Position based air/fuel ratio calculation in an internal combustion engine
US9567900B2 (en) * 2014-11-01 2017-02-14 Filip Kristani Four-cycle internal combustion engine with curtailed intake process
US9500124B2 (en) * 2014-11-13 2016-11-22 Caterpillar Inc. Hybrid powertrain and method for operating same
CN107110042A (en) * 2015-01-13 2017-08-29 Mtu 腓特烈港有限责任公司 Diesel engine and the method for starting Diesel engine
DE102015111056A1 (en) * 2015-07-08 2017-01-12 Volkswagen Aktiengesellschaft Method for the efficiency-optimized switching of a four-stroke internal combustion engine with multiple cylinders and fully variable valve train between a full-cylinder operation and partial-cylinder operation
WO2017023333A1 (en) * 2015-08-06 2017-02-09 General Electric Company System and method for engine control
DE102017010758A1 (en) * 2017-11-21 2019-05-23 Daimler Ag Internal combustion engine for a motor vehicle, and method for operating such an internal combustion engine
WO2019105538A1 (en) 2017-11-29 2019-06-06 Volvo Truck Corporation Method for controlling an internal combustion engine arrangement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682854A (en) * 1994-03-07 1997-11-04 Komatsu Ltd. Variable compression ratio engine
US20050247286A1 (en) * 2002-02-04 2005-11-10 Weber James R Combustion engine including fluidically-controlled engine valve actuator
US7178492B2 (en) * 2002-05-14 2007-02-20 Caterpillar Inc Air and fuel supply system for combustion engine
US7765806B2 (en) * 2006-08-21 2010-08-03 Gm Global Technology Operations, Inc. Atkinson cycle powertrain

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009695A (en) * 1972-11-14 1977-03-01 Ule Louis A Programmed valve system for internal combustion engine
DE69824997T2 (en) * 1997-09-15 2004-12-16 Honda Giken Kogyo K.K. Device for controlling a hybrid vehicle
JP4224944B2 (en) * 2000-03-01 2009-02-18 トヨタ自動車株式会社 Valve timing control device for internal combustion engine
JP3985696B2 (en) * 2003-02-28 2007-10-03 日産自動車株式会社 Variable valve operating device for internal combustion engine
JP2008002324A (en) * 2006-06-21 2008-01-10 Hitachi Ltd Phase angle detector and valve timing controller of internal-combustion engine using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682854A (en) * 1994-03-07 1997-11-04 Komatsu Ltd. Variable compression ratio engine
US20050247286A1 (en) * 2002-02-04 2005-11-10 Weber James R Combustion engine including fluidically-controlled engine valve actuator
US7178492B2 (en) * 2002-05-14 2007-02-20 Caterpillar Inc Air and fuel supply system for combustion engine
US7765806B2 (en) * 2006-08-21 2010-08-03 Gm Global Technology Operations, Inc. Atkinson cycle powertrain

Also Published As

Publication number Publication date
WO2012071317A2 (en) 2012-05-31
CN103328775A (en) 2013-09-25
US20120125276A1 (en) 2012-05-24
DE112011103859T5 (en) 2013-08-14
CN103328775B (en) 2016-06-29

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