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DE4025569C1 - Valve brake for vehicle IC engine - has separately controllable cylinder outlet valves for drive and braking functions - Google Patents

Valve brake for vehicle IC engine - has separately controllable cylinder outlet valves for drive and braking functions

Info

Publication number
DE4025569C1
DE4025569C1 DE4025569A DE4025569A DE4025569C1 DE 4025569 C1 DE4025569 C1 DE 4025569C1 DE 4025569 A DE4025569 A DE 4025569A DE 4025569 A DE4025569 A DE 4025569A DE 4025569 C1 DE4025569 C1 DE 4025569C1
Authority
DE
Germany
Prior art keywords
brake
rocker arm
control
drive
braking
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
DE4025569A
Other languages
German (de)
Inventor
Magnus Dipl.-Ing. 7250 Leonberg De Korte
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
Mercedes Benz 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 Mercedes Benz AG filed Critical Mercedes Benz AG
Priority to DE4025569A priority Critical patent/DE4025569C1/en
Application granted granted Critical
Publication of DE4025569C1 publication Critical patent/DE4025569C1/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
    • 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
    • F01L1/267—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 with means for varying the timing or the lift of the valves
    • 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
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The valve control is for a vehicle in which the combustion engine can be used in a braking mode, having outlet valves separately controllable for the drive and braking functions. A braking rocker arm (6) is mounted coaxially with a control rocker arm (2) for an outlet valve (3) such that in the braking operation the control rocker arm is lockable. ADVANTAGE - Simple and reliable alternative to a valve control requiring a hydraulically actuated piston.

Description

Die Erfindung betrifft eine Ventilsteuerung einer als Antrieb oder Bremse schaltbaren Brennkraftmaschine nach dem Ober­ begriff des Patentanspruchs 1.The invention relates to a valve control as a drive or brake switchable internal combustion engine according to the upper Concept of claim 1.

Eine solche Ventilsteuerung ist aus DE-A-15 26 485 bekannt. Sie dient dazu, die Auslaßventile im Bremsbetrieb, d. h. wenn die Brennkraftmaschine als Motorbremse wirkt, bereits während des Kompressionstaktes öffnen zu können.Such a valve control is known from DE-A-15 26 485. It serves the exhaust valves in braking mode, d. H. if the internal combustion engine acts as an engine brake, even while to be able to open the compression cycle.

Bei jener bekannten Steuerung befindet sich innerhalb der auf die Auslaßventile einwirkenden Kipphebel jeweils ein hydrau­ lisch betätigbarer Kolben, der bei Fahrbetrieb einziehbar und bei Bremsbetrieb jeweils so zur gleitenden Anlage an den Brems-Nocken ausfahrbar ist, daß das zugehörige Auslaßventil durch den Brems-Nocken geöffnet werden kann.In that known control is located on the the rocker arms acting on the exhaust valves are each hydraulic Piston that can be actuated and retractable while driving in braking mode so to the sliding system to the Brake cam is retractable that the associated exhaust valve can be opened by the brake cam.

Hier eine konstruktiv einfachere, in der Funktion genauer und sicherer arbeitende Alternative zu schaffen, ist die Aufgabe der vorliegenden Erfindung.Here is a structurally simpler, more precise in function and The task is to create a safer alternative of the present invention.

Gelöst wird diese durch eine Ausbildung der Ventilsteuerung nach den kennzeichnenden Merkmalen des Anspruchs 1.This is solved by designing the valve control according to the characterizing features of claim 1.

Zweckmäßige Ausgestaltungen sind Gegenstand der Unteran­ sprüche.Appropriate configurations are the subject of the Unteran claims.

Aus DE-A-37 35 156 ist zwar bereits eine Ventilsteuerung für Brennkraftmaschinen bekannt, bei der benachbarte Kipphebel in Abhängigkeit des Motorbetriebszustandes zu einer funktionellen Einheit miteinander verbindbar sind. Dort ist jedoch allein der Fahr- und nicht ein Bremsbetrieb des Motors betroffen. Die miteinander verbindbaren Kipphebel betätigen Ein- und Auslaß­ ventile von Motoren mit Brennkammern, die jeweils mehrere Ein­ und Auslaßventile besitzen. Dabei sind die miteinander ver­ bindbaren Kipphebel jeweils den Einlaßventilen einerseits und den Auslaßventilen andererseits zugeordnet. Bei zusammenge­ hörigen Kipphebeln kann ein fester Verbund bedeuten, daß je­ weils die diesen miteinander verbundenen Kipphebeln zuge­ ordneten Ventile gleichzeitig betätigt werden. Ein solches gleichzeitiges Betätigen kann bei hohen Motordrehzahlen er­ wünscht sein. Bei niedrigen Drehzahlen kann dagegen angestrebt sein, von den jeweils mehreren Ein- und Auslaßventilen einer Brennkammer jeweils nur ein Ventil der gleichen Art gleich­ zeitig zu betätigen. Für diesen Fall ist der mögliche Verbund der betreffenden Kipphebel so trennbar, daß daraus nur einer auf das ihm zugeordnete Ventil einwirkt, während der oder die übrigen aus diesem Verbund gelösten Kipphebel in diesem Be­ triebszustand ohne Antrieb bleiben. Für die erfindungsgemäße Steuerung einer Motorbremse ist jene bekannte Einrichtung da­ durch weder bestimmt noch geeignet.From DE-A-37 35 156 there is already a valve control for Internal combustion engines are known at the adjacent rocker arm in Dependence of the engine operating state on a functional one Unit can be connected to each other. However, there is alone driving and not braking operation of the engine is affected. The interconnectable rocker arms actuate inlet and outlet valves of engines with combustion chambers, each one several and have exhaust valves. The are ver bindable rocker arm each the intake valves on the one hand and assigned to the exhaust valves on the other hand. When merged audible rocker arms can mean a firm bond that ever because the connected to each other rocker arms ordered valves are operated simultaneously. Such one simultaneous actuation at high engine speeds wishes to be. At low speeds, however, can be aimed for be one of the multiple intake and exhaust valves Combustion chamber only one valve of the same type the same to actuate early. In this case the possible link is the rocker arm in question so separable that only one acts on the valve assigned to it during the or the other rocker arms released from this composite in this loading drive state remain without drive. For the invention Control of an engine brake is there that known device by neither determined nor suitable.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, die eine Ventilsteuerung in perspektivischer Dar­ stellung zeigt.An embodiment of the invention is in the drawing shown that a valve control in perspective Dar position shows.

Eine Nockenwelle 1 steuert über einen Steuer-Kipphebel 2 ein Auslaßventil 3. Der Steuer-Kipphebel 2 liegt dabei an einem Steuernocken 4 der Nockenwelle 1 an. Während des Fahrbetriebs des Motors wird der Steuer-Kipphebel 2 allein von dem Steu­ ernocken 4 geführt.A camshaft 1 controls an exhaust valve 3 via a control rocker arm 2 . The control rocker arm 2 bears against a control cam 4 of the camshaft 1 . During the driving operation of the engine, the control rocker arm 2 is guided by the control cam 4 alone.

Im Bremsbetrieb des Motors wird der Steuer-Kipphebel 2 noch zusätzlich von einem Brems-Nocken 5 der Nockenwelle 1 betä­ tigt. Die Kraftübertragung von dem Brems-Nocken 5 auf den Steuer-Kipphebel 2 erfolgt über einen Brems-Kipphebel 6, der zusammen mit dem Steuer-Kipphebel 2 auf derselben Kipphe­ belwelle 7 frei drehbar gelagert ist. In gegenüber dem Steuer- Kipphebel 2 unverbundem Zustand, wie er im Motorfahrbetrieb gegeben ist, wird der Brems-Kipphebel über einen freien Arm mit Hilfe einer Druckfeder 8 an den Brems-Nocken 6 angedrückt, von dem er auf diese Art spielfrei geführt wird.In braking operation of the engine, the control rocker arm 2 is additionally actuated by a brake cam 5 of the camshaft 1 . The power transmission from the brake cam 5 to the control rocker arm 2 takes place via a brake rocker arm 6 , which together with the control rocker arm 2 on the same Kipphe belwelle 7 is freely rotatable. In the non-connected state relative to the control rocker arm 2 , as is the case in motor driving operation, the brake rocker arm is pressed via a free arm with the aid of a compression spring 8 on the brake cam 6 , from which it is guided without play in this way.

Bei Umschaltung des Motors von Fahr- auf Bremsbetrieb werden der Steuer- und der Brems-Kipphebel 2 bzw. 6 fest miteinander verriegelt. Dadurch wird der Steuer-Kipphebel 2 und in Verbin­ dung damit das Auslaßventil 3 gleichzeitig sowohl von dem Steuer-Nocken 4 als auch dem Brems-Nocken 5 betätigt. Durch entsprechende Ausrichtung des Brems-Nockens 5 wird hierdurch ein zusätzliches öffnen des Auslaßventils 3 während des Kom­ pressionstaktes möglich.When switching the engine from driving to braking, the control and brake rocker arms 2 and 6 are locked together. Characterized the control rocker arm 2 and in connec tion so that the exhaust valve 3 is actuated simultaneously by both the control cam 4 and the brake cam 5 . By appropriate alignment of the brake cam 5 an additional opening of the exhaust valve 3 is possible during the com pression stroke.

Die Verriegelung der beiden Kipphebel 2 und 6 kann in Abhän­ gigkeit der jeweiligen Funktion des Motors als Antriebsag­ gregat oder als Motorbremse hydraulisch eingeleitet und auf­ gelöst werden.The locking of the two rocker arms 2 and 6 can, depending on the respective function of the engine as a drive unit or as an engine brake, be initiated and released hydraulically.

Konkret kann die Verriegelungsvorrichtung aus sich in den Kipphebeln 2 und 6 gegenüberliegenden Bohrungen 9 und 10 be­ stehen. In diesen Bohrungen 9 und 10 sind ein Paar axial an­ einander liegender Kolben 11 und 14 gelagert, von denen der Kolben 11 bei Anlage im Grund der Bohrumg 9 bündig mit der an den Brems-Kipphebel 6 gleitend angrenzenden Stirnfläche des Steuer-Kipphebels 2 abschließt. Durch den bündigen Abschluß kann bei nicht miteinander gekuppelten Kipphebeln 2, 6 der in der Bohrung 10 des Brems-Kipphebels 6 lagernde Kolben 14 an der Stirnfläche des Kolbens 11 entlanggleiten. Axial ver­ schiebbar sind die Kolben 11 und 14 dadurch, daß der Kolben 11 in seiner Bohrung 9 hydraulisch und der Kolben 14 in seiner Bohrung 10 durch eine Feder 12 beaufschlagt ist. Die hy­ draulische Beaufschlagung ist dabei derart, daß der Kolben 11 zur Entriegelung der beiden Kipphebel 2, 6 voll in die Bohrung 9, in der er lagert, eindringen kann, während er zur Verrie­ gelung in die gegenüberliegende Kipphebel-Bohrung 10 ausge­ fahren ist. Das Ausfahren des Kolbens 11 aus der ihn lagernden Bohrung 9 mit anschließendem Einfahren in die gegenüberlie­ gende Kipphebel-Bohrung erfolgt in einem Betriebszustand, in dem beide Kipphebel 2, 6 gerade gemeinsam auf dem jeweiligen Grundkreisabschnitt ihrer zugehörigen Nocken 4, 5 der Nocken­ welle 1 anliegen. Denn in diesem Betriebszustand fluchten die Bohrungen 9, 10 auch im entriegelten Zustand.Specifically, the locking device can be in the rocker arms 2 and 6 opposite holes 9 and 10 be. In these bores 9 and 10 , a pair of axially lying pistons 11 and 14 are mounted, of which the piston 11 is flush with the end of the control rocker arm 2 slidingly adjacent to the brake rocker arm 6 when in contact with the bottom of the bore 9 . Due to the flush closure, the rocker 14 , which is in the bore 10 of the brake rocker arm 6, can slide along the end face of the piston 11 when the rocker arms 2 , 6 are not coupled to one another. The pistons 11 and 14 are axially displaceable in that the piston 11 is hydraulically loaded in its bore 9 and the piston 14 in its bore 10 by a spring 12 . The hy draulic loading is such that the piston 11 for unlocking the two rocker arms 2 , 6 can fully penetrate into the bore 9 in which it is stored, while it can be used for locking in the opposite rocker arm bore 10 . The piston 11 extends out of the bore 9 which supports it and then retracts into the rocker arm bore lying opposite in an operating state in which the two rocker arms 2 , 6 just rest together on the respective base circle section of their associated cams 4 , 5 of the cam shaft 1 . Because in this operating state, the bores 9 , 10 are also in the unlocked state.

Die Versorgung der Entriegelungsvorrichtung mit Hydraulik­ flüssigkeit erfolgt über die Kipphebelwelle 7 und eine von dieser in die den Kolben 11 lagernde Bohrung 9 durch den Kipp­ hebel 2 führende Zuleitung 13.The supply of the unlocking device with hydraulic fluid takes place via the rocker arm shaft 7 and one of these into the piston 11 bearing bore 9 through the rocker arm 2 leading line 13th

Claims (3)

1. Ventilsteuerung einer als Antrieb oder Bremse schaltbaren Brennkraftmaschine, insbesondere eines Fahrzeuges, mit von ei­ ner Nockenwelle über Steuer-Kipphebel in Antriebs- und Brems­ funktion unterschiedlich gesteuerten Auslaßventilen, auf die in Bremsfunktion zusätzlich zu dem in Antriebsfunktion wirk­ samen Nocken noch ein weiterer Hilfs-Nocken (Brems-Nocken) einwirkt, dadurch gekennzeichnet, daß jeweils koaxial zu einem Steuer-Kipphebel (2) eines Aus­ laßventils (3) ein durch einen Brems-Nocken (5) geführter fe­ dernd an diesem anliegender Brems-Kipphebel (6) gelagert ist, der im Bremsbetrieb an dem Steuer-Kipphebel (2) arretierbar ist.1.Valve control of a switchable as a drive or brake internal combustion engine, in particular a vehicle, with ei ner camshaft via control rocker arms in the drive and brake function differently controlled exhaust valves, on the brake function in addition to the effective cam in the drive function yet another auxiliary -Cams (brake cam) acts, characterized in that each coaxial to a control rocker arm ( 2 ) of an outlet valve ( 3 ) guided by a brake cam ( 5 ), resiliently attached to this brake rocker arm ( 6 ) is mounted, which can be locked on the control rocker arm ( 2 ) during braking. 2. Ventilsteuerung nach Anspruch 1, dadurch gekennzeichnet, daß Steuer-Kipp- und Brems-Kipphebel (2, 6) jeweils achsparal­ lele gegeneinandergerichtete Öffnungen (9, 10) besitzen, die in Betriebszuständen, in denen weder der Steuer- noch der zugehö­ rige Brems-Kipphebel (2, 6) das betreffende Auslaßventil (3) geöffnet halten, fluchten, und daß während dieses Betriebs­ zustandes ein Verbindungsteil (11) gemeinsam in diese beiden Öffnungen (9, 10) einbringbar ist, durch das die beiden Kipp­ hebel (2, 6) für den Bremsbetrieb gegeneinander arretierbar sind. 2. Valve control according to claim 1, characterized in that control rocker and brake rocker arm ( 2 , 6 ) each have axially parallel lele opposing openings ( 9 , 10 ), which in operating states in which neither the control nor the zugehö rige Brake rocker arm ( 2 , 6 ) keep the relevant outlet valve ( 3 ) open, in alignment, and that during this operating state a connecting part ( 11 ) can be inserted together into these two openings ( 9 , 10 ) through which the two rocker arms ( 2 , 6 ) can be locked against each other for braking. 3. Ventilsteuerung nach Anspruch 2, dadurch gekennzeichnet, daß das Verbindungsteil ein in der Öffnung (9 bzw. 10) einer der beiden zusammengehörenden Kipphebel (2, 6) gelagerter in seiner Bohrung bündig in die zugehörige Kipphebel-Stirnfläche einziehbarer Kolben (11) ist, der im Fahrbetrieb an einem durch eine Feder (12) im Inneren der gegenüberliegenden Öff­ nung (10 bzw. 9) gehaltenen Gegen-Kolben (14) anliegt und im Bremsbetrieb hydraulisch oder pneumatisch gegen die Kraft die­ ser Feder (12) unter Verdrängung des Gegen-Kobens (14) in die Gegenöffnung (9 bzw. 10) einschiebbar ist.3. Valve control according to claim 2, characterized in that the connecting part is in the opening ( 9 or 10 ) of one of the two associated rocker arms ( 2 , 6 ) mounted in its bore flush in the associated rocker arm end face retractable piston ( 11 ) , which bears against a piston ( 14 ) held in motion by a spring ( 12 ) inside the opposite opening ( 10 or 9 ) and hydraulically or pneumatically against the force of this spring ( 12 ) while displacing the brake in braking mode Counter-Kobens ( 14 ) can be inserted into the counter-opening ( 9 or 10 ).
DE4025569A 1990-08-11 1990-08-11 Valve brake for vehicle IC engine - has separately controllable cylinder outlet valves for drive and braking functions Expired - Lifetime DE4025569C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4025569A DE4025569C1 (en) 1990-08-11 1990-08-11 Valve brake for vehicle IC engine - has separately controllable cylinder outlet valves for drive and braking functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4025569A DE4025569C1 (en) 1990-08-11 1990-08-11 Valve brake for vehicle IC engine - has separately controllable cylinder outlet valves for drive and braking functions

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DE4025569C1 true DE4025569C1 (en) 1991-07-18

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219061A1 (en) * 1992-06-11 1993-12-23 Dietrich Gerhard Ellsaeser Cyclic control for vehicle IC engine brake system - incorporates additional cams, to advance exhaust valve timing
EP0576768A1 (en) * 1992-06-27 1994-01-05 Mercedes-Benz Ag Valve driving system for multicylinder internal combustion engine
FR2694960A1 (en) * 1992-08-20 1994-02-25 Daimler Benz Ag Valve drive system for a multi-cylinder internal combustion engine.
DE19729198A1 (en) * 1997-07-09 1999-01-14 Deutz Ag Brake device for internal combustion engine
DE19961795C2 (en) * 1998-12-24 2003-04-24 Unisia Jecs Corp exhaust brake
WO2004067923A1 (en) * 2003-01-30 2004-08-12 Daimlerchrysler Ag Hydraulic carrier rocker arm
DE102004038473A1 (en) * 2004-08-07 2006-02-23 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Valve train for charge exchange valves of internal combustion engines
WO2005107418A3 (en) * 2004-05-06 2007-01-25 Jacobs Vehicle Systems Inc Primary and offset actuator rocker arms for engine valve actuation
WO2007115715A1 (en) * 2006-04-05 2007-10-18 Daimler Ag Gas exchange valve actuating device
DE102006060272A1 (en) * 2006-12-20 2008-06-26 Volkswagen Ag Internal combustion engine e.g. for variable control, has camshaft and cam which are couplable to transmission links in particular roller, valves when engine is operated
CN100427740C (en) * 2004-02-23 2008-10-22 沃尔沃拉斯特瓦格纳公司 Exhaust valve mechanism for internal combustion engine
WO2009019269A1 (en) * 2007-08-06 2009-02-12 Iveco S.P.A. Device for actuating the decompression engine brake in an internal combustion engine provided with hydraulic tappets
EP2384396A2 (en) * 2009-01-05 2011-11-09 Shanghai Universoon Autoparts Co., Ltd Engine braking devices and methods
WO2012038195A1 (en) * 2010-09-23 2012-03-29 Avl List Gmbh Four-stroke internal combustion engine comprising an engine brake
WO2012038191A1 (en) * 2010-09-23 2012-03-29 Avl List Gmbh Four-stroke internal combustion engine with engine brake
CN103422932A (en) * 2013-09-02 2013-12-04 中国第一汽车股份有限公司 Independent cam type engine braking device
DE102013215946A1 (en) * 2013-08-12 2015-02-12 Avl List Gmbh Valve operating device for changing the valve lift
DE102017104629A1 (en) 2017-03-06 2018-09-06 Schaeffler Technologies AG & Co. KG Variable valve train of a combustion piston engine
DE102017118852A1 (en) 2017-08-18 2019-02-21 Man Truck & Bus Ag Power transmission device for variable valve train
DE102019119870A1 (en) * 2019-07-23 2021-01-28 Man Truck & Bus Se Variable valve train for an engine braking mode
US11286817B2 (en) 2018-08-09 2022-03-29 Eaton Intelligent Power Limited Deactivating rocker arm having two-stage latch pin
US11566544B2 (en) 2018-08-09 2023-01-31 Eaton Intelligent Power Limited Rocker arm assembly with lost motion spring

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DE1526485A1 (en) * 1965-10-01 1970-03-19 Jacobs Mfg Co Braking device for internal combustion engines
DE3735156A1 (en) * 1986-10-16 1988-05-26 Honda Motor Co Ltd DEVICE FOR VALVE ACTUATION IN AN INTERNAL COMBUSTION ENGINE

Patent Citations (2)

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DE1526485A1 (en) * 1965-10-01 1970-03-19 Jacobs Mfg Co Braking device for internal combustion engines
DE3735156A1 (en) * 1986-10-16 1988-05-26 Honda Motor Co Ltd DEVICE FOR VALVE ACTUATION IN AN INTERNAL COMBUSTION ENGINE

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219061A1 (en) * 1992-06-11 1993-12-23 Dietrich Gerhard Ellsaeser Cyclic control for vehicle IC engine brake system - incorporates additional cams, to advance exhaust valve timing
EP0576768A1 (en) * 1992-06-27 1994-01-05 Mercedes-Benz Ag Valve driving system for multicylinder internal combustion engine
FR2694960A1 (en) * 1992-08-20 1994-02-25 Daimler Benz Ag Valve drive system for a multi-cylinder internal combustion engine.
DE19729198A1 (en) * 1997-07-09 1999-01-14 Deutz Ag Brake device for internal combustion engine
DE19961795C2 (en) * 1998-12-24 2003-04-24 Unisia Jecs Corp exhaust brake
US7182054B2 (en) 2003-01-30 2007-02-27 Daimler Chrysler Ag Valve drive including a rocker lever with hydraulically actuated driver
WO2004067923A1 (en) * 2003-01-30 2004-08-12 Daimlerchrysler Ag Hydraulic carrier rocker arm
DE10303567A1 (en) * 2003-01-30 2004-08-12 Daimlerchrysler Ag Hydraulic driver rocker arm
US8230831B2 (en) * 2004-02-23 2012-07-31 Volvo Lastuaguar AB Exhaust valve mechanism for internal combustion engine
CN100427740C (en) * 2004-02-23 2008-10-22 沃尔沃拉斯特瓦格纳公司 Exhaust valve mechanism for internal combustion engine
JP2007536456A (en) * 2004-05-06 2007-12-13 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 Main and offset actuators, rocker arms for engine valve actuation
US7392772B2 (en) 2004-05-06 2008-07-01 Jacobs Vehicle Systems, Inc. Primary and offset actuator rocker arms for engine valve actuation
KR101282840B1 (en) 2004-05-06 2013-07-05 자콥스 비히클 시스템즈, 인코포레이티드. Primary and offset actuator rocker arms for engine valve actuation
WO2005107418A3 (en) * 2004-05-06 2007-01-25 Jacobs Vehicle Systems Inc Primary and offset actuator rocker arms for engine valve actuation
DE102004038473B4 (en) * 2004-08-07 2006-08-10 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Valve train for charge exchange valves of internal combustion engines
DE102004038473A1 (en) * 2004-08-07 2006-02-23 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Valve train for charge exchange valves of internal combustion engines
US8056533B2 (en) 2006-04-05 2011-11-15 Daimler Ag Gas exchange valve actuating device
WO2007115715A1 (en) * 2006-04-05 2007-10-18 Daimler Ag Gas exchange valve actuating device
DE102006060272A1 (en) * 2006-12-20 2008-06-26 Volkswagen Ag Internal combustion engine e.g. for variable control, has camshaft and cam which are couplable to transmission links in particular roller, valves when engine is operated
WO2009019269A1 (en) * 2007-08-06 2009-02-12 Iveco S.P.A. Device for actuating the decompression engine brake in an internal combustion engine provided with hydraulic tappets
CN101849086B (en) * 2007-08-06 2012-07-18 Fpt工业公司 Device for actuating the decompression engine brake in an internal combustion engine provided with hydraulic tappets
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