EP1361344A3 - A valve-actuating system for an exhaust gas recirculation system of an internal-combustion engine - Google Patents

A valve-actuating system for an exhaust gas recirculation system of an internal-combustion engine Download PDF

Info

Publication number
EP1361344A3
EP1361344A3 EP03010118A EP03010118A EP1361344A3 EP 1361344 A3 EP1361344 A3 EP 1361344A3 EP 03010118 A EP03010118 A EP 03010118A EP 03010118 A EP03010118 A EP 03010118A EP 1361344 A3 EP1361344 A3 EP 1361344A3
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
gas recirculation
valve
lobes
internal
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.)
Granted
Application number
EP03010118A
Other languages
German (de)
French (fr)
Other versions
EP1361344A2 (en
EP1361344B1 (en
Inventor
Giancarlo Dellora
Klaus Dieter Schmidt
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.)
FPT Motorenforschung AG
Iveco SpA
Original Assignee
Iveco Motorenforschung AG
Iveco Fiat SpA
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 Iveco Motorenforschung AG, Iveco Fiat SpA filed Critical Iveco Motorenforschung AG
Publication of EP1361344A2 publication Critical patent/EP1361344A2/en
Publication of EP1361344A3 publication Critical patent/EP1361344A3/en
Application granted granted Critical
Publication of EP1361344B1 publication Critical patent/EP1361344B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A valve-actuating system for an exhaust gas recirculation system, in which a camshaft has main lobes (30), which are used to induce full valve opening so as to bring about the intake of the air/fuel mixture or the expulsion of the exhaust gases, and auxiliary lobes (31) used to induce partial valve opening bringing about exhaust gas recirculation. A valve clearance regulating device (35) is provided adapted to vary the clearance between at least a first lower clearance value (D1) in which the valves (7) which are caused to be opened both by the main lobes (30) and by the auxiliary lobes (31), and a second higher clearance value (D2) in which the valves (7) which are induced to open by the main lobes (30) alone, thereby rendering the exhaust gas recirculation inoperative.
EP03010118A 2002-05-07 2003-05-05 A valve-actuating system for an exhaust gas recirculation system of an internal-combustion engine Expired - Lifetime EP1361344B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO20020377 2002-05-07
IT2002TO000377A ITTO20020377A1 (en) 2002-05-07 2002-05-07 VALVE ACTUATION SYSTEM FOR INTERNAL COMBUSTION ENGINE EXHAUST RECIRCULATION SYSTEM.

Publications (3)

Publication Number Publication Date
EP1361344A2 EP1361344A2 (en) 2003-11-12
EP1361344A3 true EP1361344A3 (en) 2004-01-21
EP1361344B1 EP1361344B1 (en) 2006-11-08

Family

ID=27639050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03010118A Expired - Lifetime EP1361344B1 (en) 2002-05-07 2003-05-05 A valve-actuating system for an exhaust gas recirculation system of an internal-combustion engine

Country Status (5)

Country Link
EP (1) EP1361344B1 (en)
AT (1) ATE344875T1 (en)
DE (1) DE60309536T2 (en)
ES (1) ES2279022T3 (en)
IT (1) ITTO20020377A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0419031B1 (en) 2004-09-09 2015-10-27 Volvo Lastvagnar Ab apparatus for an internal combustion engine
JP4726775B2 (en) 2006-12-20 2011-07-20 ヤマハ発動機株式会社 Continuously variable valve gear for engine
BRPI0922516B1 (en) * 2009-01-05 2020-10-06 Shanguai Universoon Autoparts Co.,Ltd APPARATUS TO CHANGE AN INTERNAL COMBUSTION ENGINE FROM A NORMAL ENGINE OPERATION FOR AN ENGINE BRAKING OPERATION AND METHOD FOR CONVERTING AN INTERNAL COMBUSTION ENGINE FROM A NORMAL ENGINE OPERATION TO AN ENGINE BRAKING OPERATION
CN102061956B (en) * 2009-05-21 2017-08-25 杨鲁川 drive device
US9765658B2 (en) * 2011-03-02 2017-09-19 Delphi Technologies, Inc. Valve train system for an internal combustion engine
CN102787880B (en) * 2011-05-18 2014-11-26 上海尤顺汽车部件有限公司 Method and device for manufacturing rocking arm with main piston and auxiliary piston
DE102014202439A1 (en) 2014-02-11 2015-08-13 Mahle International Gmbh Internal combustion engine
BR112016027704B1 (en) * 2014-06-10 2023-04-04 Jacobs Vehicle Systems, Inc SYSTEM FOR USE IN AN INTERNAL COMBUSTION ENGINE AND METHOD FOR DRIVING IN AN INTERNAL COMBUSTION ENGINE
KR102335529B1 (en) 2017-09-12 2021-12-03 현대자동차주식회사 Engine brake device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807351A1 (en) * 1997-02-28 1998-09-03 Avl List Gmbh Internal combustion engine
US6244257B1 (en) * 1995-08-08 2001-06-12 Diesel Engine Retarders, Inc. Internal combustion engine with combined cam and electro-hydraulic engine valve control
US20010027773A1 (en) * 1999-12-20 2001-10-11 Robb Janak Method and apparatus for hydraulic clip and reset of engine brake systems utilizing lost motion
US6354254B1 (en) * 1999-04-14 2002-03-12 Diesel Engine Retarders, Inc. Exhaust and intake rocker arm assemblies for modifying valve lift and timing during positive power

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6244257B1 (en) * 1995-08-08 2001-06-12 Diesel Engine Retarders, Inc. Internal combustion engine with combined cam and electro-hydraulic engine valve control
DE19807351A1 (en) * 1997-02-28 1998-09-03 Avl List Gmbh Internal combustion engine
US6354254B1 (en) * 1999-04-14 2002-03-12 Diesel Engine Retarders, Inc. Exhaust and intake rocker arm assemblies for modifying valve lift and timing during positive power
US20010027773A1 (en) * 1999-12-20 2001-10-11 Robb Janak Method and apparatus for hydraulic clip and reset of engine brake systems utilizing lost motion

Also Published As

Publication number Publication date
ES2279022T3 (en) 2007-08-16
DE60309536T2 (en) 2007-08-30
EP1361344A2 (en) 2003-11-12
ATE344875T1 (en) 2006-11-15
ITTO20020377A0 (en) 2002-05-07
EP1361344B1 (en) 2006-11-08
ITTO20020377A1 (en) 2003-11-07
DE60309536D1 (en) 2006-12-21

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