EP0702133B1 - Motorbremse für eine Dieselbrennkraftmaschine - Google Patents

Motorbremse für eine Dieselbrennkraftmaschine Download PDF

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Publication number
EP0702133B1
EP0702133B1 EP95112255A EP95112255A EP0702133B1 EP 0702133 B1 EP0702133 B1 EP 0702133B1 EP 95112255 A EP95112255 A EP 95112255A EP 95112255 A EP95112255 A EP 95112255A EP 0702133 B1 EP0702133 B1 EP 0702133B1
Authority
EP
European Patent Office
Prior art keywords
valve
decompression
conduit
control
combustion engine
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.)
Expired - Lifetime
Application number
EP95112255A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0702133A3 (enrdf_load_stackoverflow
EP0702133A2 (de
Inventor
Magnus Dipl.-Ing. Korte
Emil Dipl.-Ing. Bäuerle
Klaus-Dieter Dipl.-Ing. Holloh
Erwin Dipl.-Ing. Schmidt
Siegfried Dipl.-Ing. Lamsbach
Eberhard Dipl.-Ing. Schneider
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP0702133A2 publication Critical patent/EP0702133A2/de
Publication of EP0702133A3 publication Critical patent/EP0702133A3/xx
Application granted granted Critical
Publication of EP0702133B1 publication Critical patent/EP0702133B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to an engine brake for a Diesel engine according to the preamble of the claim 1 specified characteristics.
  • Engine braking systems for commercial vehicle internal combustion engines with one Engine brake flaps controlled in the exhaust pipe are sufficient known.
  • Engine braking power constant throttles as decompression valves known that are constantly open during the engine braking phase are sufficient known.
  • DE 39 04 497 C1 describes a decompression brake, which from a hydraulic actuator with a Hydraulic pistons and hydraulic cylinders to control one exhaust gas exchange valve of the internal combustion engine.
  • the actuation of the hydraulic device and thus the exhaust valve is carried out by the engine's own injection pump, by connecting the flow to the injector through a path controller interrupted, but to the hydraulic device released at the compression stroke of the Zünd-0T.
  • the exhaust valve is opened a crack and that through the Internal combustion engine absorbed during the compression stroke Energy is not supplied to the internal combustion engine during the expansion stroke returned.
  • the invention has for its object the engine brake system of the generic type to improve that entire speed range of the internal combustion engine to meet the requirements optimally adapted and freely selectable braking performance achieved becomes.
  • the decompression valve one for solenoid-controlled Injectors provided common High-pressure fuel accumulator (common rail)
  • the also part of the injection system of the internal combustion engine represents a freely selectable braking power by control the opening or closing time of the decompression valve or by regulating the rail pressure, provided that will that no injections in the engine braking phase respectively.
  • a selective activation of individual Cylinder of the internal combustion engine can be carried out. So is through a targeted control of the decompression valve via the whole speed range of the internal combustion engine an optimal Braking power achievable.
  • Fig. 1 is a simple engine braking system for a diesel engine shown with a regulated high pressure pump 1 Fuel under high pressure in a high-pressure fuel reservoir promotes that as a common supply line 2 (common rail) for solenoid-controlled injection valves 3 is trained.
  • a common supply line 2 common rail
  • a decompression valve 4 as an additional outlet valve provided that an actuating piston on its back 5 with a decompression valve 4 in its closed position returning return spring 6.
  • the actuating piston 5 delimits a work space 7, which by one of Control unit 8 electronically operated control valve 9 as a 3/2-way valve with the common supply line 2 via a Control line 10 is connectable.
  • the 3/2-way valve controls the flow connection from the common one Supply line 2 to the work area 7 of the decompression valve 4 or from the work space 7 to the low pressure system via a low pressure line 11.
  • the common supply line 2 is at least one with all the injection valves 3 Row of cylinders of the internal combustion engine via injection lines 12 and additionally with all decompression valves 4 of these Row of cylinders via those branching from the injection lines 12 Control lines 10 connected, which also directly from the Supply line 2 can lead away. At 13, one of them High pressure pump 1 outgoing and to the common supply line 2 leading fuel supply line designated.
  • a the decompression valve 4 in operative connection Control piston 14 is arranged, the piston crown 15 a upper pressure chamber 16, which is via the 3/2-way valve connectable to the common supply line 2 is.
  • the control piston 14 has a stepped design Control spool with an annular control groove 18 in larger diameter slide part 17, during which Decompression valve 4 facing smaller slide part 19 together with a hydraulic cylinder 20 an annular space 21, into which a line section 10a of the fork-shaped extending control line 10 opens.
  • the other Line section 10b leads with the interposition of the 3/2-way valve 9 in the pressure chamber 16.
  • the smaller slide part 19 has a conical seat 23 on a correspondingly adapted valve seat 24 lies on.
  • the Flow connection from the line section 10a via a connecting line 25 to the work space 7 of the decompression valve 4 interrupted.
  • the control piston 14 is in the closed position kept because the pressure application area of the piston crown 15 larger is as the pressure shoulder 16 delimiting the pressure space 16 Piston shaft 17.
  • This embodiment according to FIG. 2 has compared to the example Fig. 1 has the advantage that by the additional arrangement of a Control piston to act on the decompression valve Smaller tax amounts can be realized and thus the use of smaller ones Solenoid valves is possible.
  • the line arrangements and connections correspond to the exemplary embodiment according to FIG. 2, but the decompression valve 4 is also the gas exchange valve on the outlet side.
  • the valve is operated as a gas exchange valve in the usual way purely mechanically via a cam-operated rocker arm 30, which is interposed in the valve stem 31 and can be decoupled from the mechanical actuation when the valve is activated as a decompression valve, which means that the rocker arm 30 assumes a valve actuation position when the valve is open , in which the cam-operated push rod 31 idles.
  • the fast switching 3/2-way valve 9 is from the electronic Control device 8 controlled, the signals such as speed n, Load L synchronization S, pressure P in the common supply line 2 and other signal to a control signal for processed the magnetic control of the decompression valve 4.
  • the corresponding sensors are designated 32, 33, 34 and 35.
  • the regulation of the braking power can be done by regulating the pressure in the fuel pressure accumulator or the rail pressure, by control the time of opening or closing or by selective activation single cylinder of the internal combustion engine take place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP95112255A 1994-09-19 1995-08-04 Motorbremse für eine Dieselbrennkraftmaschine Expired - Lifetime EP0702133B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433258 1994-09-19
DE4433258A DE4433258C1 (de) 1994-09-19 1994-09-19 Motorbremse für eine Dieselbrennkraftmaschine

Publications (3)

Publication Number Publication Date
EP0702133A2 EP0702133A2 (de) 1996-03-20
EP0702133A3 EP0702133A3 (enrdf_load_stackoverflow) 1996-04-24
EP0702133B1 true EP0702133B1 (de) 1999-11-03

Family

ID=6528536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112255A Expired - Lifetime EP0702133B1 (de) 1994-09-19 1995-08-04 Motorbremse für eine Dieselbrennkraftmaschine

Country Status (3)

Country Link
US (1) US5564386A (enrdf_load_stackoverflow)
EP (1) EP0702133B1 (enrdf_load_stackoverflow)
DE (2) DE4433258C1 (enrdf_load_stackoverflow)

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US5713331A (en) * 1994-12-21 1998-02-03 Mannesmann Rexroth Gmbh Injection and exhaust-brake system for an internal combustion engine having several cylinders
DE19514116A1 (de) * 1995-04-14 1996-10-17 Daimler Benz Ag Vorrichtung zur Steuerung von in einem Zylinder einer Brennkraftmaschine komprimierter Luft
DE19528792C1 (de) * 1995-08-04 1996-08-14 Daimler Benz Ag Motorbremse für eine Dieselbrennkraftmaschine
SE512116C2 (sv) * 1995-11-24 2000-01-24 Volvo Ab Avgasventilmekanism i en förbränningsmotor
US5735242A (en) * 1996-04-17 1998-04-07 Cummins Engine Company, Inc. Fuel pressure activated engine compression braking system
US7222614B2 (en) 1996-07-17 2007-05-29 Bryant Clyde C Internal combustion engine and working cycle
US6951211B2 (en) 1996-07-17 2005-10-04 Bryant Clyde C Cold air super-charged internal combustion engine, working cycle and method
US8215292B2 (en) 1996-07-17 2012-07-10 Bryant Clyde C Internal combustion engine and working cycle
US7281527B1 (en) 1996-07-17 2007-10-16 Bryant Clyde C Internal combustion engine and working cycle
DE19728350A1 (de) * 1997-07-03 1998-12-03 Daimler Benz Ag Verfahren und Vorrichtung zur Erhöhung der Motorbremsleistung von Brennkraftmaschinen
US6035828A (en) 1998-03-11 2000-03-14 Caterpillar Inc. Hydraulically-actuated system having a variable delivery fixed displacement pump
DE19840639C1 (de) * 1998-09-05 2000-03-09 Daimler Chrysler Ag Brennkraftmaschine mit einer Motorbremseinrichtung
DE19910971A1 (de) * 1999-03-12 2000-09-21 Bosch Gmbh Robert Kraftstoffeinspritzsystem für eine Brennkraftmaschine, mit einer Hochdruckpumpe und zwei Druckspeichern
US6283090B1 (en) 1999-11-17 2001-09-04 Caterpillar Inc. Method and apparatus for operating a hydraulically-powered compression release brake assembly on internal combustion engine
US6321717B1 (en) 2000-02-15 2001-11-27 Caterpillar Inc. Double-lift exhaust pulse boosted engine compression braking method
US6405707B1 (en) * 2000-12-18 2002-06-18 Caterpillar Inc. Integral engine and engine compression braking HEUI injector
US20030140876A1 (en) * 2002-01-30 2003-07-31 Zhou Yang Engine valve actuation system and method using reduced pressure common rail and dedicated engine valve
US7178492B2 (en) 2002-05-14 2007-02-20 Caterpillar Inc Air and fuel supply system for combustion engine
US6732685B2 (en) * 2002-02-04 2004-05-11 Caterpillar Inc Engine valve actuator
US6688280B2 (en) 2002-05-14 2004-02-10 Caterpillar Inc Air and fuel supply system for combustion engine
US7347171B2 (en) * 2002-02-04 2008-03-25 Caterpillar Inc. Engine valve actuator providing Miller cycle benefits
US7201121B2 (en) 2002-02-04 2007-04-10 Caterpillar Inc Combustion engine including fluidically-driven engine valve actuator
US6705282B2 (en) * 2002-03-01 2004-03-16 International Engine Intellectual Property Company, Llc Method and apparatus to provide engine compression braking
US7069887B2 (en) 2002-05-14 2006-07-04 Caterpillar Inc. Engine valve actuation system
US6941909B2 (en) * 2003-06-10 2005-09-13 Caterpillar Inc System and method for actuating an engine valve
US7191743B2 (en) 2002-05-14 2007-03-20 Caterpillar Inc Air and fuel supply system for a combustion engine
US7004122B2 (en) * 2002-05-14 2006-02-28 Caterpillar Inc Engine valve actuation system
US7252054B2 (en) 2002-05-14 2007-08-07 Caterpillar Inc Combustion engine including cam phase-shifting
US6901911B2 (en) * 2002-07-31 2005-06-07 Caterpillar Inc Pump and hydraulic system with low pressure priming and over pressurization avoidance features
US6681740B1 (en) * 2003-01-08 2004-01-27 International Engine Intellectual Property Company, Llc Injection control pressure strategy during activation of an engine retarder
US6912458B2 (en) * 2003-06-25 2005-06-28 Caterpillar Inc Variable valve actuation control for operation at altitude
US6779506B1 (en) * 2003-09-23 2004-08-24 International Engine Intellectual Property Company, Llc Engine brake control pressure strategy
JP2006029247A (ja) * 2004-07-20 2006-02-02 Denso Corp エンジンの停止始動制御装置
CN102165149B (zh) * 2008-07-31 2014-01-29 Pac制动公司 内燃机的压缩释放制动系统的独立式压缩制动控制模块
US20110203258A1 (en) * 2010-02-25 2011-08-25 International Engine Intellectual Property Company , Llc Exhaust valve actuation system for diesel particulate filter regeneration
JP5995857B2 (ja) * 2010-11-15 2016-09-21 アカーテース パワー，インク． エンジンブレーキ用圧縮空気放出を伴う２サイクル対向ピストン機関
JP7030553B2 (ja) * 2018-02-09 2022-03-07 株式会社ジャパンエンジンコーポレーション 油圧駆動装置

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JP2712760B2 (ja) * 1990-05-29 1998-02-16 トヨタ自動車株式会社 燃料噴射弁
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DE59300956D1 (de) * 1993-01-25 1995-12-21 Steyr Nutzfahrzeuge Motorbremse bei einer 4-Takt-Brennkraftmaschine eines Nutzfahrzeuges.
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US5406918A (en) * 1993-08-04 1995-04-18 Hino Jidosha Kogyo Kabushiki Kaisha Internal combustion engine
US5462025A (en) * 1994-09-28 1995-10-31 Diesel Engine Retarders, Inc. Hydraulic circuits for compression release engine brakes
US5460131A (en) * 1994-09-28 1995-10-24 Diesel Engine Retarders, Inc. Compact combined lash adjuster and reset mechanism for compression release engine brakes

Also Published As

Publication number Publication date
EP0702133A3 (enrdf_load_stackoverflow) 1996-04-24
EP0702133A2 (de) 1996-03-20
US5564386A (en) 1996-10-15
DE4433258C1 (de) 1996-03-07
DE59507170D1 (de) 1999-12-09

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