EP1526257A3 - Exhaust braking device for a 4-stroke internal piston combustion engine - Google Patents

Exhaust braking device for a 4-stroke internal piston combustion engine Download PDF

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Publication number
EP1526257A3
EP1526257A3 EP04023313A EP04023313A EP1526257A3 EP 1526257 A3 EP1526257 A3 EP 1526257A3 EP 04023313 A EP04023313 A EP 04023313A EP 04023313 A EP04023313 A EP 04023313A EP 1526257 A3 EP1526257 A3 EP 1526257A3
Authority
EP
European Patent Office
Prior art keywords
engine
exhaust
valve
brake device
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
EP04023313A
Other languages
German (de)
French (fr)
Other versions
EP1526257A2 (en
EP1526257B1 (en
Inventor
Franz Dipl.-Ing. Rammer
Gottfried Dipl.-Ing. Raab
Franz Ing. Leitenmayr
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge AG
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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Priority to PL04023313T priority Critical patent/PL1526257T3/en
Publication of EP1526257A2 publication Critical patent/EP1526257A2/en
Publication of EP1526257A3 publication Critical patent/EP1526257A3/en
Application granted granted Critical
Publication of EP1526257B1 publication Critical patent/EP1526257B1/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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • 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
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/02—Formulas

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)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Exhaust Silencers (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Braking Arrangements (AREA)

Abstract

Die Erfindung betrifft eine Motorstaubremsvorrichtung einer 4-Takt-Hubkolbenbrennkraftmaschine, die je Zylinder wenigstens ein Einlassventil und zwei Auslassventile (2, 3) aufweist und gezielt auf diesen Motortyp abgestellt ist. Im Abgastrakt (9) ist eine zur Motorbremsung derart betätigbare Drosselvorrichtung (10) eingebaut, dass sich stromauf derselben im aufgestauten Abgas ein Abgasgegendruck aufbaut, der in Verbindung mit einer speziellen motorinternen Bremsvorrichtung (11) wirksam wird. Erfindungsgemäß ist die motorinterne Bremsvorrichtung (11) je Zylinder (1) nur einem (2) der beiden Auslassventile (2, 3) zugeordnet, das andere Auslassventil (3) dagegen ist herkömmlich gesteuert. Die motorinterne Bremseinrichtung (11) umfasst einen in der Ventilbrücke (20) eingebauten Steuerkolben (30), der von einem öldruckbeaufschlagten Steuerdruckraum (33) her und eventuell durch eine zusätzliche Steuerdruckfeder (32) in Richtung Auslassventil (2) gedrückt ist. Der Steuerdruckraum (33) ist an eine permanente Druckölversorgung angeschlossen und abhängig von der Bewegung bzw. Stellung der Ventilbrücke (20) über einen Entlastungskanal (37) entweder abgesperrt oder druckentlastet. Hierdurch ergibt sich während des Motorbremsens automatisch eine bestimmte Öffnungs- und Schließcharakteristik des Auslassventils (2) mit der Folge einer hohen Motorbremsleistung.

Figure imgaf001
The invention relates to a motor dust brake device of a 4-stroke reciprocating internal combustion engine, which has at least one intake valve and two exhaust valves (2, 3) per cylinder and is targeted to this type of engine. In the exhaust gas tract (9), a throttle device (10) which can be actuated for engine braking is installed such that an exhaust backpressure builds up upstream of it in the accumulated exhaust gas, which becomes effective in conjunction with a special engine-internal braking device (11). According to the invention, the engine-internal brake device (11) per cylinder (1) is associated with only one (2) of the two exhaust valves (2, 3), while the other exhaust valve (3) is conventionally controlled. The engine-internal brake device (11) comprises a control piston (30) built into the valve bridge (20) which is pressed by an oil pressure-loaded control pressure chamber (33) and possibly by an additional control pressure spring (32) in the direction of the outlet valve (2). The control pressure chamber (33) is connected to a permanent pressure oil supply and depending on the movement or position of the valve bridge (20) via a discharge channel (37) either shut off or depressurized. This results during the engine braking automatically a certain opening and closing characteristics of the exhaust valve (2), resulting in a high engine braking performance.
Figure imgaf001
EP04023313A 2003-10-24 2004-09-30 Exhaust braking device for a 4-stroke internal piston combustion engine Expired - Lifetime EP1526257B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04023313T PL1526257T3 (en) 2003-10-24 2004-09-30 Exhaust braking device for a 4-stroke internal piston combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10349641A DE10349641A1 (en) 2003-10-24 2003-10-24 Engine dust brake device of a 4-stroke reciprocating internal combustion engine
DE10349641 2003-10-24

Publications (3)

Publication Number Publication Date
EP1526257A2 EP1526257A2 (en) 2005-04-27
EP1526257A3 true EP1526257A3 (en) 2008-10-22
EP1526257B1 EP1526257B1 (en) 2009-08-12

Family

ID=34384450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023313A Expired - Lifetime EP1526257B1 (en) 2003-10-24 2004-09-30 Exhaust braking device for a 4-stroke internal piston combustion engine

Country Status (8)

Country Link
US (1) US7013867B2 (en)
EP (1) EP1526257B1 (en)
JP (1) JP4541831B2 (en)
CN (1) CN100376767C (en)
AT (1) ATE439506T1 (en)
DE (2) DE10349641A1 (en)
PL (1) PL1526257T3 (en)
RU (1) RU2301370C2 (en)

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DE10349641A1 (en) * 2003-10-24 2005-05-19 Man Nutzfahrzeuge Ag Engine dust brake device of a 4-stroke reciprocating internal combustion engine
BRPI0620594A2 (en) * 2005-12-28 2011-11-16 Jacobs Vehicle Systems Inc Part-cycle bleed brake method and system
US7556004B2 (en) * 2006-10-16 2009-07-07 Caterpillar Inc. Bactrian rocker arm and engine using same
JP5089706B2 (en) * 2006-12-12 2012-12-05 マック トラックス インコーポレイテッド Valve opening mechanism and method
DE102007007758A1 (en) * 2007-02-16 2008-08-21 Mahle International Gmbh Valve drive of a reciprocating internal combustion engine
EP2025888A1 (en) * 2007-08-06 2009-02-18 Iveco S.p.A. Device for actuating the decompression engine brake in an internal combustion engine provided with hydraulic tappets
CN101835967B (en) * 2007-10-22 2013-10-09 沃尔沃拉斯特瓦格纳公司 Engine Brake Detection
EP2055906A1 (en) * 2007-10-31 2009-05-06 Caterpillar Motoren GmbH & Co. KG Device and method for controlling valves
DE102008029521A1 (en) * 2008-06-21 2009-12-24 Man Nutzfahrzeuge Ag Particle separator and method for separating particles from an exhaust stream of an internal combustion engine
US8214113B2 (en) * 2008-06-30 2012-07-03 Caterpillar Inc. Retarding system that retards motion of power source
US7789065B2 (en) * 2008-07-09 2010-09-07 Zhou Yang Engine braking apparatus with mechanical linkage and lash adjustment
DE102008032775A1 (en) 2008-07-11 2010-01-14 Man Nutzfahrzeuge Aktiengesellschaft Internal combustion engine with an engine brake device and a valve clearance compensation mechanism
DE102008032774A1 (en) * 2008-07-11 2010-01-14 Man Nutzfahrzeuge Ag Engine braking device and method for engine braking with a valve auxiliary control unit
DE102008061412A1 (en) * 2008-07-11 2010-01-14 Man Nutzfahrzeuge Ag Hydraulic valve and EVB clearance compensation
US20100037854A1 (en) * 2008-08-18 2010-02-18 Zhou Yang Apparatus and method for engine braking
BRPI0823368B1 (en) * 2008-12-12 2021-01-12 Volvo Lastvagnar Ab diagnostic method and apparatus for an exhaust pressure regulator
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JP5508520B2 (en) 2009-04-27 2014-06-04 ジェイコブス ビークル システムズ、インコーポレイテッド Exclusive rocker arm type engine brake
DE102009048143A1 (en) 2009-10-02 2011-04-07 Man Nutzfahrzeuge Aktiengesellschaft Internal combustion engine with an engine brake device
DE102009048104A1 (en) 2009-10-02 2011-04-07 Man Nutzfahrzeuge Aktiengesellschaft Internal combustion engine with an engine brake device
KR101134973B1 (en) * 2009-11-19 2012-04-09 기아자동차주식회사 Engine brake and engine provided with the same
US20110120411A1 (en) * 2009-11-23 2011-05-26 International Engine Intellectual Property Company, Llc Solenoid control for valve actuation in engine brake
DE102010008928A1 (en) * 2010-02-23 2011-08-25 Schaeffler Technologies GmbH & Co. KG, 91074 Reciprocating internal combustion engine with engine braking by opening the exhaust valves
CN102220907B (en) * 2010-04-19 2015-03-11 上海尤顺汽车部件有限公司 Engine combined brake control method
CN102261283B (en) * 2010-05-27 2013-10-09 上海尤顺汽车部件有限公司 A fixed chain engine braking device
AT510236B1 (en) * 2010-07-26 2015-12-15 MAN Truck & Bus Österreich AG METHOD FOR MOTOR BRAKING
AT510237B1 (en) * 2010-07-26 2015-12-15 MAN Truck & Bus Österreich AG METHOD FOR MOTOR BRAKING
AT511048B1 (en) * 2011-02-10 2012-12-15 Avl List Gmbh Internal combustion engine
CN102678345A (en) * 2011-03-16 2012-09-19 奚勇 Method and device for braking engine by using valve bridge
DE102011118537A1 (en) * 2011-05-04 2012-11-08 Man Truck & Bus Ag Internal combustion engine with at least one combustion chamber
DE102011076587A1 (en) * 2011-05-27 2012-11-29 Continental Automotive Gmbh Exhaust gas turbocharger with a ball valve wastegate valve with tension-relieved crank arm
DE102012012875A1 (en) 2012-06-28 2014-01-02 Man Truck & Bus Ag Method and device for controlling at least one brake flap
DE102013007468A1 (en) * 2013-05-02 2014-11-06 Man Truck & Bus Ag Device for actuating two exhaust valves acted upon by a valve bridge of a valve-controlled internal combustion engine
DE102013022037A1 (en) * 2013-12-20 2015-06-25 Daimler Ag Method for operating a reciprocating internal combustion engine
WO2016041600A1 (en) * 2014-09-18 2016-03-24 Eaton Srl Rocker arm assembly for engine braking
WO2016044748A1 (en) * 2014-09-18 2016-03-24 Jacobs Vehicle Systems, Inc. Lost motion assembly in a valve bridge for use with a valve train comprising a hydraulic lash adjuster
EP3247888B1 (en) * 2015-01-21 2024-01-03 Eaton Intelligent Power Limited Rocker arm assembly for engine braking
CN106150589B (en) 2015-04-28 2019-01-15 上海尤顺汽车部件有限公司 A kind of list valve compression-release valve bridge brake apparatus and method
CN109882296A (en) * 2015-05-12 2019-06-14 上海尤顺汽车部件有限公司 A kind of engine braking methods slow for vehicle
WO2016184495A1 (en) 2015-05-18 2016-11-24 Eaton Srl Rocker arm having oil release valve that operates as an accumulator
CN105019966B (en) * 2015-08-03 2017-11-07 浙江师范大学 A kind of high-power engine brake apparatus and method
DE102015012735A1 (en) * 2015-10-01 2017-04-06 Man Truck & Bus Ag Operating method and device for the control or regulation of a permanent braking system of a vehicle
JP6296045B2 (en) * 2015-12-08 2018-03-20 トヨタ自動車株式会社 Control device for internal combustion engine
JP6587986B2 (en) * 2016-06-30 2019-10-09 株式会社クボタ Valve gear
DE102016213031A1 (en) * 2016-07-18 2018-01-18 Ford Global Technologies, Llc Method for smoothly stopping a motor vehicle
DE102016015457A1 (en) * 2016-12-22 2018-06-28 Daimler Ag Method for operating a reciprocating internal combustion engine
CN108757082A (en) * 2018-05-22 2018-11-06 大连理工大学 A Bottom Camshaft Continuously Variable Valve Mechanism
WO2020014621A1 (en) * 2018-07-13 2020-01-16 Eaton Intelligent Power Limited Rocker based bleeder engine brake
CN109899162B (en) * 2019-03-19 2022-04-26 潍柴动力股份有限公司 Exhaust brake system and engine
CN112065524B (en) * 2020-09-11 2021-09-28 潍柴动力股份有限公司 Rocker arm assembly and engine
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Also Published As

Publication number Publication date
JP4541831B2 (en) 2010-09-08
RU2004131034A (en) 2006-04-10
DE10349641A1 (en) 2005-05-19
PL1526257T3 (en) 2010-01-29
US20050087170A1 (en) 2005-04-28
CN1609414A (en) 2005-04-27
US7013867B2 (en) 2006-03-21
EP1526257A2 (en) 2005-04-27
DE502004009879D1 (en) 2009-09-24
ATE439506T1 (en) 2009-08-15
CN100376767C (en) 2008-03-26
JP2005127329A (en) 2005-05-19
EP1526257B1 (en) 2009-08-12
RU2301370C2 (en) 2007-06-20

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