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EP0576768A1 - Dispositif de commande de soupapes pour moteur à combustion interne multicylindre - Google Patents

Dispositif de commande de soupapes pour moteur à combustion interne multicylindre Download PDF

Info

Publication number
EP0576768A1
EP0576768A1 EP92710025A EP92710025A EP0576768A1 EP 0576768 A1 EP0576768 A1 EP 0576768A1 EP 92710025 A EP92710025 A EP 92710025A EP 92710025 A EP92710025 A EP 92710025A EP 0576768 A1 EP0576768 A1 EP 0576768A1
Authority
EP
European Patent Office
Prior art keywords
lever
coupling
actuating
valve
cylinder
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
EP92710025A
Other languages
German (de)
English (en)
Other versions
EP0576768B1 (fr
Inventor
Christoph Dipl.-Ing. Reckzügel
Rolf Ohlendorf
Mario Dipl.-Ing. Mürwald
Jürgen Dipl.-Ing. Frey
Gerhard Doll
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of EP0576768A1 publication Critical patent/EP0576768A1/fr
Application granted granted Critical
Publication of EP0576768B1 publication Critical patent/EP0576768B1/fr
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
    • 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
    • F01L1/26—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

Definitions

  • the invention relates to a valve drive system for a multi-cylinder internal combustion engine according to the features specified in the preamble of claim 1.
  • a valve drive system with two intake valves and one exhaust valve for each cylinder is known from EP 0 267 687 B1.
  • the rocker arm arrangement for these valves is composed of two actuating levers and a coupling lever, each actuating lever being drivable by a low-speed cam and the coupling lever by a high-speed cam. Both actuating levers and the coupling lever of each cylinder can be coupled and result in a unit driven by the high-speed cam for actuating both inlet valves.
  • the invention has for its object to provide a valve drive system of the type specified in the preamble of claim 1, with which the various opening and closing times while largely maintaining a compact design and using only a single camshaft for a row of cylinders for the valve drive of each cylinder display more flexibly.
  • the valve drive system allows separate actuation of the rocker arm pair on the intake and exhaust side of each cylinder, or two rocker arm pairs on the intake side or of these rocker arm pairs and the rocker arm pair on the exhaust side, and thus any determination of the switching times for the inlet and outlet valve or only for two inlet valves or for these and the outlet valve with regard to the opening and closing times.
  • the special design for each cylinder thus results in switching options through which only the actuating levers or only the coupling levers take effect, or a circuit is possible in which only the actuation lever for one inlet valve and the coupling lever for the other inlet valve of the same cylinder or vice versa.
  • variable control times can be achieved with the exhaust valve in connection with variable control times of at least one intake valve.
  • a valve drive system with two intake valves per cylinder is also known, in which two separate couplings are provided on a rocker arm arrangement for each cylinder, but which, depending on the coupling, only permit joint control of both intake valves of a cylinder.
  • valve drive system in which the cams actuate only one camshaft all the rocker arms for the intake and exhaust valves of a row of cylinders, there is a minimization of the manufacturing and assembly expenditure of the control parts connected to the cylinder head.
  • the rocker arm arrangement 6 comprises a fork-like actuation or exhaust rocker arm 7 for the two exhaust valves 2 and four rocker arms for the actuation of the two intake valves 3, 4. Of the four rocker arms, two act as actuation levers 8, 9 and the other two as coupling levers 10, 11.
  • an actuating lever 8 or 9 and a respective coupling lever 10 or 11 are rotatably mounted on a common rocker arm axis 12, of which the actuating levers 8, 9 are directly adjacent to the exhaust rocker arm 7 rotatably mounted on another rocker arm shaft 13 .
  • the actuating lever and associated coupling lever form a detachable unit or a pair of rocker arms.
  • Both pairs of rocker arms 14, 15 of each cylinder are each provided with a coupling device 16, 17, each of which consists of a pressurizable locking bolt 16a, 17a and a spring-loaded guide cup 16b, 17b.
  • the locking pin is mounted in a longitudinally displaceable manner in the coupling lever, while the guide cup with the spring 16c, 17c is guided in a slowly displaceable manner in the actuating lever, or vice versa.
  • cams 18, 19, 20, 21 for the actuating levers 8.9 and coupling levers 10, 11 have basic circles of the same diameter, while the cams 20, 21 assigned to the coupling levers 10, 11 have larger cam elevations than the cams 18 assigned to the actuating levers 8.9 , 19th
  • the valves of a cylinder can be controlled separately, that is to say that depending on the actuation of the coupling devices 16, 17 different inlet start and inlet end times can be driven.
  • Fig. 3a is a schematic representation of a valve drive system with six cams 18,19; 7,7a; 20,21, which cooperate with actuating and coupling levers for the intake and exhaust valves.
  • the coupling lever 10 is assigned to the cam 18, the actuating lever 8 intended for the intake valve 3 to the cam 19, the actuating lever 7 for the exhaust valve 2 to the cam 23, the coupling lever 7a to the cam 24, the actuating lever 9 to the intake valve 4 to the cam 20 and the coupling lever 11 the cam 21.
  • a version with only one actuating lever 9 can be used for the inlet valve 4 without a coupling lever 11.
  • 3b consists of four cams 18, 19, 7, 7 a, which interact with at least one inlet valve 3 and outlet valve 2.
  • the rocker arm pair 15 shown in FIG. 3a is omitted.
  • the actuating lever 8 is connected to only one inlet valve 3 or to two inlet valves 3a, 3b.
  • the actuating levers 7, 8 are designed like a fork for actuating two valves.
  • FIG. 3c corresponds to that of FIG. 1, only the actuating lever 9, that is to say without a coupling lever 11, being able to actuate the inlet valve 4 here.
  • the switching options can e.g. be load, speed, flow and exhaust gas recirculation dependent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP92710025A 1992-06-27 1992-08-20 Dispositif de commande de soupapes pour moteur à combustion interne multicylindre Expired - Lifetime EP0576768B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4221134 1992-06-27
DE4221134A DE4221134C1 (fr) 1992-06-27 1992-06-27

Publications (2)

Publication Number Publication Date
EP0576768A1 true EP0576768A1 (fr) 1994-01-05
EP0576768B1 EP0576768B1 (fr) 1996-10-16

Family

ID=6461960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92710025A Expired - Lifetime EP0576768B1 (fr) 1992-06-27 1992-08-20 Dispositif de commande de soupapes pour moteur à combustion interne multicylindre

Country Status (8)

Country Link
US (1) US5297505A (fr)
EP (1) EP0576768B1 (fr)
JP (1) JP2552243B2 (fr)
KR (1) KR950014400B1 (fr)
DE (2) DE4221134C1 (fr)
FR (1) FR2692933B1 (fr)
GB (1) GB2268226B (fr)
IT (1) IT1262366B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268226B (en) * 1992-06-27 1995-06-28 Daimler Benz Ag Valve operation mechanism in an internal combustion engine
US5601057A (en) * 1995-05-29 1997-02-11 Mercedes Benz Ag Valve actuating system for a multicylinder internal combustion engine
DE19719984A1 (de) * 1997-05-13 1998-11-19 Alois Kauf Strömungsoptimierte, tropfenförmige Ventilgestaltung auf der Auslaßseite von Viertaktmotoren

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406835A (en) * 1992-06-27 1995-04-18 Mercedes Benz Ag Method for monitoring the switching process of a coupling device
DE4232848A1 (de) * 1992-09-30 1994-03-31 Audi Ag Ventilbetätigungsmechanismus
JPH06235309A (ja) * 1992-12-16 1994-08-23 Mitsubishi Motors Corp 内燃機関用動弁装置
DE4316860C1 (de) * 1993-05-19 1994-05-26 Audi Ag Ventilbetätigungsmechanismus für eine Brennkraftmaschine
DE4319918A1 (de) * 1993-06-16 1994-12-22 Rexroth Mannesmann Gmbh Verfahren zum Ansteuern eines Elektromagneten
DE4322212A1 (de) * 1993-07-03 1995-01-12 Bayerische Motoren Werke Ag Nockengesteuerte Ventilbetätigung für eine 4-Takt/8-Takt Brennkraftmaschine
EP0652353B1 (fr) * 1993-11-08 1996-09-04 Mercedes-Benz Ag Dispositif de commande des soupapes d'un moteur à combustion interne
JP3464698B2 (ja) * 1994-01-25 2003-11-10 本田技研工業株式会社 多気筒内燃機関における触媒活性化装置
DE4404683C1 (de) * 1994-02-15 1995-03-02 Daimler Benz Ag Verfahren zur Minimierung von Spiel in einem Ventiltrieb
DE4411182B4 (de) * 1994-03-31 2004-04-08 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Schaltbare Ventilsteuerung für Brennkraftmaschinen
JP3402853B2 (ja) * 1995-04-12 2003-05-06 ヤマハ発動機株式会社 エンジンの動弁装置
DE19515284A1 (de) * 1995-04-26 1996-10-31 Schaeffler Waelzlager Kg Nockenfolger eines Ventiltriebs einer Brennkraftmaschine
DE19530441C1 (de) * 1995-08-18 1997-01-30 Daimler Benz Ag Vorrichtung zum Betreiben von Ventilen einer Brennkraftmaschine
DE19604943C2 (de) * 1996-02-10 2002-10-02 Daimler Chrysler Ag Vorrichtung zum Betreiben von Ventilen einer Brennkraftmaschine
DE19643711A1 (de) * 1996-10-23 1998-04-30 Audi Ag Ventilbetätigungsvorrichtung für eine Brennkraftmaschine
DE10016103A1 (de) * 2000-03-31 2001-10-04 Audi Ag Variable Ventilsteuerung
KR100359410B1 (ko) * 2000-07-01 2002-10-31 주식회사 파이온테크 브이에프디 커버유리 제조방법과 제조장치 및 제조금형
US7107953B2 (en) * 2003-09-18 2006-09-19 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Valve gear of an internal combustion engine
TW201144574A (en) * 2010-06-15 2011-12-16 Kwang Yang Motor Co Structure of driving member of engine valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141527A2 (fr) * 1983-10-22 1985-05-15 Gaydon Technology Limited Culasse pour un moteur à combustion interne avec allumage à étincelle
US4741297A (en) * 1985-07-31 1988-05-03 Honda Giken Kogyo Kabushiki Kaisha Valve operating mechanism for internal combustion engine
EP0267687A1 (fr) * 1986-10-16 1988-05-18 Mazda Motor Corporation Dispositif de commande de soupape pour moteur à combustion interne
DE3613945C2 (fr) * 1985-04-26 1991-06-13 Mazda Motor Corp., Hiroshima, Jp
DE4025569C1 (en) * 1990-08-11 1991-07-18 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Valve brake for vehicle IC engine - has separately controllable cylinder outlet valves for drive and braking functions

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60128915A (ja) * 1983-12-17 1985-07-10 Honda Motor Co Ltd 多気筒内燃機関の弁作動休止装置
US4768467A (en) * 1986-01-23 1988-09-06 Fuji Jukogyo Kabushiki Kaisha Valve operating system for an automotive engine
US4901685A (en) * 1986-12-19 1990-02-20 Honda Giken Kogyo Kabushiki Kaisha Valve operating mechanism for an internal combustion engine
DE3800347A1 (de) * 1987-01-08 1988-09-29 Honda Motor Co Ltd Ventilbetaetigungsvorrichtung in einer brennkraftmaschine
CA1323533C (fr) * 1987-12-28 1993-10-26 Toshihiro Oikawa Systeme de soupapes pour moteurs a combustion interne
US4942854A (en) * 1988-03-03 1990-07-24 Honda Giken Kogyo Kabushiki Kaisha Valve operating device for use in internal combustion engine
JPH068604B2 (ja) * 1988-05-23 1994-02-02 本田技研工業株式会社 内燃機関の弁作動状態切換装置
US4995353A (en) * 1990-04-11 1991-02-26 General Motors Corporation Valve train with lash/compliance compensation
DE4221134C1 (fr) * 1992-06-27 1993-07-01 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141527A2 (fr) * 1983-10-22 1985-05-15 Gaydon Technology Limited Culasse pour un moteur à combustion interne avec allumage à étincelle
DE3613945C2 (fr) * 1985-04-26 1991-06-13 Mazda Motor Corp., Hiroshima, Jp
US4741297A (en) * 1985-07-31 1988-05-03 Honda Giken Kogyo Kabushiki Kaisha Valve operating mechanism for internal combustion engine
EP0267687A1 (fr) * 1986-10-16 1988-05-18 Mazda Motor Corporation Dispositif de commande de soupape pour moteur à combustion interne
DE4025569C1 (en) * 1990-08-11 1991-07-18 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Valve brake for vehicle IC engine - has separately controllable cylinder outlet valves for drive and braking functions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268226B (en) * 1992-06-27 1995-06-28 Daimler Benz Ag Valve operation mechanism in an internal combustion engine
US5601057A (en) * 1995-05-29 1997-02-11 Mercedes Benz Ag Valve actuating system for a multicylinder internal combustion engine
DE19719984A1 (de) * 1997-05-13 1998-11-19 Alois Kauf Strömungsoptimierte, tropfenförmige Ventilgestaltung auf der Auslaßseite von Viertaktmotoren

Also Published As

Publication number Publication date
JP2552243B2 (ja) 1996-11-06
DE59207388D1 (de) 1996-11-21
KR950014400B1 (en) 1995-11-27
GB2268226B (en) 1995-06-28
FR2692933B1 (fr) 1994-10-07
US5297505A (en) 1994-03-29
GB9312222D0 (en) 1993-07-28
FR2692933A1 (fr) 1993-12-31
GB2268226A (en) 1994-01-05
ITRM930403A1 (it) 1994-12-22
JPH0658119A (ja) 1994-03-01
EP0576768B1 (fr) 1996-10-16
DE4221134C1 (fr) 1993-07-01
KR940000724A (ko) 1994-01-03
IT1262366B (it) 1996-06-19
ITRM930403A0 (it) 1993-06-22

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