WO2011141833A3 - Multi-cylinder internal combustion engine with variable actuation of the engine valves - Google Patents

Multi-cylinder internal combustion engine with variable actuation of the engine valves Download PDF

Info

Publication number
WO2011141833A3
WO2011141833A3 PCT/IB2011/051645 IB2011051645W WO2011141833A3 WO 2011141833 A3 WO2011141833 A3 WO 2011141833A3 IB 2011051645 W IB2011051645 W IB 2011051645W WO 2011141833 A3 WO2011141833 A3 WO 2011141833A3
Authority
WO
WIPO (PCT)
Prior art keywords
engine
internal combustion
cylinder internal
valves
combustion engine
Prior art date
Application number
PCT/IB2011/051645
Other languages
French (fr)
Other versions
WO2011141833A2 (en
Inventor
Clino D'Epiro
Antonio Balzano
Original Assignee
Fiat Powertrain Technologies S.P.A.
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 Fiat Powertrain Technologies S.P.A. filed Critical Fiat Powertrain Technologies S.P.A.
Priority to US13/697,184 priority Critical patent/US20130055973A1/en
Publication of WO2011141833A2 publication Critical patent/WO2011141833A2/en
Publication of WO2011141833A3 publication Critical patent/WO2011141833A3/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
    • F01L1/12—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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • 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
    • 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
    • F01L13/0021—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 by modification of rocker arm ratio
    • F01L13/0026—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 by modification of rocker arm ratio by means of an eccentric
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

In a multi-cylinder internal combustion engine, valves of the engine, in particular the exhaust valves (3), are actuated by rocker arms (18) each of which is rotatably mounted on the structure of the engine with the interposition of an eccentric bushing (39), whose rotation allows varying the position of the rotational axis of the respective rocker arm, so as to activate and deactivate an extra-lift of the engine valve. The eccentric bushings (38) associated to the rocker arms (18) of the various cylinders of the engine are all connected in rotation with a common shaft (100) which is rotatably supported on the structure of the engine and which can be rotated through actuator means (105) preferably arranged outside the engine.
PCT/IB2011/051645 2010-05-10 2011-04-15 Multi-cylinder internal combustion engine with variable actuation of the engine valves WO2011141833A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/697,184 US20130055973A1 (en) 2010-05-10 2011-04-15 Multi-cylinder internal combustion engine with variable actuation of the engine valves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10425154A EP2386729A1 (en) 2010-05-10 2010-05-10 Multi-cylinder internal combustion engine with variable actuation of the engine valves
EP10425154.1 2010-05-10

Publications (2)

Publication Number Publication Date
WO2011141833A2 WO2011141833A2 (en) 2011-11-17
WO2011141833A3 true WO2011141833A3 (en) 2012-01-05

Family

ID=43064512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/051645 WO2011141833A2 (en) 2010-05-10 2011-04-15 Multi-cylinder internal combustion engine with variable actuation of the engine valves

Country Status (3)

Country Link
US (1) US20130055973A1 (en)
EP (1) EP2386729A1 (en)
WO (1) WO2011141833A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013019000A1 (en) * 2013-11-13 2015-05-13 Daimler Ag Engine braking device for an internal combustion engine
KR101634546B1 (en) 2015-10-05 2016-06-29 주식회사 현대케피코 Apparatus for controlling electronic continuously variable valve timing and method thereof
JP6831207B2 (en) * 2016-10-20 2021-02-17 三菱重工エンジン＆ターボチャージャ株式会社 Rocker arm
DE202017103459U1 (en) * 2017-06-08 2018-09-13 steute Schaltgeräte GmbH & Co. KG Radio sensor module for the detection of material containers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1812787A (en) * 1929-06-05 1931-06-30 Ora M Doolittle Braking attachment for vehicle motors
GB782351A (en) * 1952-10-09 1957-09-04 Clarence Arnold Fell Improvements in or relating to internal combustion engine assemblies
GB1279977A (en) * 1968-12-14 1972-06-28 Vauxhall Motors Ltd Internal combustion engine valve actuator mechanism
JP2003106124A (en) * 2001-10-01 2003-04-09 Hino Motors Ltd Decompression device
EP1347154A2 (en) * 2002-03-20 2003-09-24 Hydraulik-Ring Gmbh Valve lift control for internal combustion engine
EP1574679A2 (en) * 2004-03-12 2005-09-14 Nissan Motor Co., Ltd. Adjusting mechanism and adjusting method of valve-lift amount of internal combustion engine
US20050279304A1 (en) * 2004-06-16 2005-12-22 Hitachi, Ltd. Variable valve system of internal combustion engine and method of assembling same

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE348023C (en) * 1919-05-04 1922-02-01 Ernst Muschinsky Device for regulating the stroke of the mixture inlet valves of multi-cylinder internal combustion engines
US2772667A (en) * 1950-01-13 1956-12-04 Daimler Benz Ag Valve-control
JP2700692B2 (en) * 1989-06-30 1998-01-21 スズキ株式会社 Valve system for 4-cycle engine
US5148783A (en) * 1990-03-08 1992-09-22 Suzuki Kabushiki Kaisha Valve actuating mechanism in four-stroke cycle engine
IT1255447B (en) * 1991-11-08 1995-10-31 Iveco Fiat ENGINE EQUIPPED WITH A CONTINUOUS BRAKING DEVICE, PARTICULARLY FOR AN INDUSTRIAL VEHICLE.
JPH08338214A (en) * 1995-06-15 1996-12-24 Unisia Jecs Corp Decompression brake device
AT1915U1 (en) * 1997-02-28 1998-01-26 Avl List Gmbh INTERNAL COMBUSTION ENGINE
GB2323630B (en) * 1997-03-26 2000-09-06 T & N Technology Ltd Operating mechanisms for valves
DE10352677A1 (en) * 2003-11-03 2005-06-02 Hydraulik-Ring Gmbh Variable valve lift device for internal combustion engine, has rotatable eccentric shaft having eccentrics contours positioned within circle formed by external diameter of bearings of eccentric shaft
DE102005062207A1 (en) * 2005-12-24 2007-06-28 Mahle International Gmbh Camshaft especially for motor vehicle engines has coaxial inner and outer camshafts with inner shaft being secured on inner surface of outer shaft
JP4545127B2 (en) * 2006-09-15 2010-09-15 株式会社デンソー Valve timing adjustment device
ITMI20062289A1 (en) 2006-11-28 2008-05-29 Iveco Spa DEVICE FOR BRAKING FOR DECOMPRESSION IN ENDOTHERMIC ENGINES
ITMI20062288A1 (en) 2006-11-28 2008-05-29 Iveco Spa INTERNAL COMBUSTION ENGINE EQUIPPED WITH A SYSTEM FOR THE CHANGE OF VALVE OPENING AND VEHICLE EQUIPPED WITH SUCH ENGINE

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1812787A (en) * 1929-06-05 1931-06-30 Ora M Doolittle Braking attachment for vehicle motors
GB782351A (en) * 1952-10-09 1957-09-04 Clarence Arnold Fell Improvements in or relating to internal combustion engine assemblies
GB1279977A (en) * 1968-12-14 1972-06-28 Vauxhall Motors Ltd Internal combustion engine valve actuator mechanism
JP2003106124A (en) * 2001-10-01 2003-04-09 Hino Motors Ltd Decompression device
EP1347154A2 (en) * 2002-03-20 2003-09-24 Hydraulik-Ring Gmbh Valve lift control for internal combustion engine
EP1574679A2 (en) * 2004-03-12 2005-09-14 Nissan Motor Co., Ltd. Adjusting mechanism and adjusting method of valve-lift amount of internal combustion engine
US20050279304A1 (en) * 2004-06-16 2005-12-22 Hitachi, Ltd. Variable valve system of internal combustion engine and method of assembling same

Also Published As

Publication number Publication date
EP2386729A1 (en) 2011-11-16
WO2011141833A2 (en) 2011-11-17
US20130055973A1 (en) 2013-03-07

Similar Documents

Publication Publication Date Title
WO2008042262B1 (en) System for selectively varying engine valve open duration
ATE444435T1 (en) VARIABLE VALVE CONTROL MECHANISM
ATE529620T1 (en) COMBUSTION ENGINE WITH VARIABLE COMPRESSION RATIO
WO2011141833A3 (en) Multi-cylinder internal combustion engine with variable actuation of the engine valves
BRPI0816861A2 (en) Brake actuator decompression engine on an internal combustion engine supplied with hydraulic tappets
GB2442917A (en) Internal combustion engine
WO2010007429A3 (en) Internal combustion engine
WO2009091768A3 (en) Sliding-pivot locking mechanism for an overhead cam with multiple rocker arms
WO2011018075A3 (en) Variable valve train for internal combustion engines for actuating gas exchange valves
EP2034161A3 (en) Control apparatus for cylinder injection type internal combustion engine
WO2011011248A3 (en) Overhead valve and rocker arm configuration for a small engine
EP1843015A3 (en) Lift-variable valve-operating system for internal combustion engine
WO2013150213A3 (en) Device for partially deactivating the cylinders of an internal combustion engine
CA2650895A1 (en) Cylinder head structure in four-cycle engine
EP1816320A3 (en) Valve operating apparatus for internal combustion engine
WO2013020008A3 (en) Internal combustion engine valvetrain
WO2007125399A3 (en) Variable compression ratio internal combustion engine
WO2009115975A3 (en) Egr valve for exhaust gas recirculation to the intake manifold of internal combustion engines
US9322302B2 (en) Operating internal combustion engines
JP2010532839A5 (en)
JP2007100569A5 (en)
CN102966391B (en) Swinging arm mechanism controlled by using double cams
GB201209108D0 (en) Internal combustion engine
CN205592029U (en) A admission valve actuating system for dual -fuel engine
RU2013114979A (en) TURBOCHARGER OPERATION METHOD (OPTIONS)

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11721366

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 13697184

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11721366

Country of ref document: EP

Kind code of ref document: A2