EP2444602B1 - Dispositifs de freinage de moteur et procédés - Google Patents

Dispositifs de freinage de moteur et procédés Download PDF

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Publication number
EP2444602B1
EP2444602B1 EP11006451.6A EP11006451A EP2444602B1 EP 2444602 B1 EP2444602 B1 EP 2444602B1 EP 11006451 A EP11006451 A EP 11006451A EP 2444602 B1 EP2444602 B1 EP 2444602B1
Authority
EP
European Patent Office
Prior art keywords
braking
engine
valve
piston
cam
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.)
Not-in-force
Application number
EP11006451.6A
Other languages
German (de)
English (en)
Other versions
EP2444602A1 (fr
Inventor
Zhou Dr. Yang
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.)
Shanghai Universoon Auto Parts Co Ltd
Yang Zhou
Original Assignee
Shanghai Universoon Auto Parts Co Ltd
Yang Zhou
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
Priority claimed from US12/348,317 external-priority patent/US7984705B2/en
Priority claimed from US12/348,320 external-priority patent/US8065987B2/en
Priority claimed from CN200920142242U external-priority patent/CN201372829Y/zh
Priority claimed from CN 200910056200 external-priority patent/CN101994538B/zh
Priority claimed from CN 200910056670 external-priority patent/CN101994539B/zh
Priority claimed from CN 200910194857 external-priority patent/CN102003236B/zh
Priority claimed from CN 200910194858 external-priority patent/CN102003237B/zh
Priority claimed from CN 200910194869 external-priority patent/CN102003240B/zh
Priority claimed from CN 200910194870 external-priority patent/CN102003241B/zh
Priority claimed from CN 200910194868 external-priority patent/CN102003239B/zh
Priority claimed from CN 200910194859 external-priority patent/CN102003238B/zh
Priority claimed from CN 200910194871 external-priority patent/CN102003242B/zh
Priority claimed from CN 200910195285 external-priority patent/CN102011622B/zh
Application filed by Shanghai Universoon Auto Parts Co Ltd, Yang Zhou filed Critical Shanghai Universoon Auto Parts Co Ltd
Publication of EP2444602A1 publication Critical patent/EP2444602A1/fr
Publication of EP2444602B1 publication Critical patent/EP2444602B1/fr
Application granted granted Critical
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • 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
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • 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
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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
    • 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
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • 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
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets
    • 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
    • F01L2820/03—Auxiliary actuators
    • F01L2820/033—Hydraulic engines

Definitions

  • An additional disadvantage of the know arrangement is that it does not have an easy way or a proper lash adjusting means to set the valve lash.
  • US 2005/000499A1 (RUGGIERO BRIAN ET AL, JAN. 6, 2005 ) disclosed a rocker brake with one braking piston in the rocker arm.
  • FIG. 2 is a function chart illustrating the general relationship between the normal engine operation 20 and the added engine braking operation 10 according to one version of the present invention.
  • the small cam lobe(s) on the exhaust cam 230 are skipped, as shown in block 240, due to a gap 234 among the valve train components, to produce the main exhaust valve lift profile 220m for the normal engine valve event 20N.
  • the engine brake control means 50 controls the motion of the engine brake actuation means 100 between an inoperative position 0 and an operative position 1.
  • FIG. 5A When engine brake is needed, the engine brake control means 50 is turned on ( FIG. 5A ) and the engine oil is transmitted to the engine brake actuation means 100 through the braking fluid circuit.
  • FIG. 4B shows that the engine oil from flow passage 214 can get to the bottom of the lash adjusting screw 110 because its stem 191 is smaller than the bore 190 of the ball-locking piston 165 in which the braking piston 160 slides. Oil pressure overcomes the force of spring 198 and pushes up the rocker arm 210 for a clockwise rotation to take up the gap 234 between the cam 230 and the cam follower 235 ( FIG. 4B ).
  • the valve body 60 has the inlet port 111, the outlet port 211 and the discharge port 222.
  • a ball 67 is mounted in a bore 75b and separates the inlet port 111 and the outlet port 211.
  • a movable valve member for example, a cylindrical body 64 is disposed in a bore 75a to separate the outlet port 211 and the discharge port 222.
  • a plunger 66 is disposed between the cylindrical body 64 and the ball 67.
  • the three ports are separated or sealed from each other by O-rings 65 and 68.
  • a screen 69 can be installed before the inlet port 111 to prevent any contaminants from getting into the valve.
  • the ball-locking piston 165 is biased up by a spring 177r and a gap 185 is formed between the ball-locking piston 165 and the reset stop 182.
  • the gap 185 is so designed that the ball-locking piston 165 will not touch the reset stop 182 during the normal engine operation.
  • the engine brake reset means 150 may work without the reset spring 177r because the ball-locking piston 165 can be unseated by the reset stop 182 to reset and turn off the engine brake actuation means 100.
  • the ball-locking piston 165 When the ball-locking piston 165 is unseated, there may be oil leakage through the annular gap between the small piston or stem of the ball-locking piston 165 and the bore 450 in the valve bridge 400.
  • the engine brake reset means 150 can also be disabled by removing the reset stop 182, then the motion of the whole cam is transmitted to the exhaust valves 300 to produce an enlarged main valve lift profile and a secondary valve lift profile for the engine braking operation. Without the reset stop 182, the reset spring 177r is needed to unlock the ball-locking device and turn off the engine brake.
  • FIGS. 17A and 17B are schematic diagrams of another embodiment, which is not part of the claimed invention with the engine brake actuation means 100 integrated into the valve bridge 400.
  • the engine brake actuation means 100 is a ball-locking device similar to that shown in FIGS. 11A and 11B .
  • a plurality of balls 175 are restrained by three surfaces on three different elements of the engine brake actuation means 100.
  • the first surface is the tapered surface 192 on the braking piston 160 that is slidably disposed in a large bore 190 in the valve bridge 400.
  • the second surface is the bottom flat surface of the bore 190, and the third surface on the ball-locking piston or plunger 165 that is slidably disposed in a small bore 450 in the valve bridge.
  • the engine brake reset means 150 includes the ball-locking piston 165 and a reset stop 182 on the engine cylinder head 500.
  • Oil pressure at the second level or higher overcomes the load of the braking springs 177 and pushes the braking pistons 160 down and out of the bores 190 to the exhaust valves 300.
  • the braking pistons 160 are at the operative position now and their motion or stroke is limited by the exhaust valves 300 and equal to the gap 234 as shown in FIG. 18B .
  • the control fluid displaced the braking pistons 160 takes up the gap 234 and forms a hydraulic linkage between the valve bridge 400 and the exhaust valves 300.
  • FIG. 20D shows a different braking piston assembly that can be used for the embodiment which is not part of the claimed invention, shown in FIGS. 20A and 20B .
  • the two braking pistons 160a and 160b are biased toward each other by the braking springs 177a and 177b that are held and guided by a screw 148 and a screw nut 149.
  • the inoperative surface 145 and the operative surface 140 are cylindrical.
  • the two braking pistons 160a and 160b are separated by a clip ring 159 ( FIG. 20D ) that can be mounted in a groove (not shown) at the center of the bore 415 ( FIGS. 20A and 20B ).
  • 25A shows the retracted position of the toggle device where the two pins guided in the slot 137 that is cut through a guiding piston 162 are pushed to the left by the spring 156.
  • the guiding piston 162 slides in a horizontal bore 260 in the braking housing 210.
  • the slot 137 in the guiding piston 162 has a width that is about the same as or slightly larger than the diameter of the two pins and a length that is smaller than the diameter of the bore 190. There will be always contact (no separation) among the braking piston, the lower pin, the upper pin and the adjusting screw due to the upward force of the spring 177 that is secured to the brake housing 210 with at least one screw 179.
  • the engine braking control means When engine brake is needed, the engine braking control means is turned on and oil pressure can push both pistons 162 and 164 to the right against the preloads of the spring 156 and 177.
  • the actuation piston 164 can be moved to the right further to lock the two pins or toggles 184 and 186 in a straight position, aligned with the adjusting screw 110b and the braking piston 160, as shown in FIG. 25B .
  • the toggle device is locked to its extended position on the operative position.
  • the motion limiting means for this toggle device is unique.
  • the angle between the two pins or toggles 184 and 186 decides the height difference 130, while the angle itself is controlled by the two pistons 162 and 164.
  • the bleeding orifice 168 in the guiding piston 162 is designed to eliminate hydraulic lock.
  • FIG. 35 is a schematic diagram of another engine braking apparatus, which is not part of the claimed invention, with a wedge system at the "Off" position.
  • the only difference from FIG. 34 is that the slant surface 140 on the braking piston160 is perpendicular to the brake actuation linkage 210.

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  • 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)

Claims (14)

  1. Appareil permettant de convertir le fonctionnement d'un moteur à combustion interne d'un fonctionnement de moteur normal en un fonctionnement de freinage moteur, le moteur comportant un dispositif de commande de soupape d'échappement comprenant deux soupapes d'échappement (300), un coupleur de soupapes (400), un culbuteur (210) et un poussoir de soupape d'échappement (200) ayant une came d'échappement (230) avec un lobe de came d'échappement (220) pour ouvrir et fermer de manière cyclique les deux soupapes d'échappement (300), caractérisé en ce que ledit appareil comprend : (a) un actionneur (100) comprenant un système hydraulique intégré dans ledit dispositif de commande de soupape d'échappement, ledit système hydraulique comprenant un piston de freinage unique (160) disposé de manière coulissante dans ledit coupleur de soupapes (400) entre une position non opérationnelle et une position opérationnelle ; dans ladite position non opérationnelle, ledit piston de freinage (160) étant rétracté et désengagé dudit fonctionnement de moteur normal et non soumis à une charge de l'une quelconque des deux soupapes d'échappement (300), et dans ladite position opérationnelle, ledit piston de freinage (160) étant étendu et ouvrant uniquement une soupape (300a) parmi les deux soupapes d'échappement (300) pour ledit fonctionnement de freinage moteur ; et (b) une unité de commande (50) pour déplacer ledit piston de freinage (160) entre ladite position non opérationnelle et ladite position opérationnelle.
  2. Appareil de la revendication 1, dans lequel ledit système hydraulique comprend en outre une soupape de régulation d'écoulement (51) et un circuit de liquide de frein dans ledit dispositif de commande de soupape d'échappement.
  3. Appareil de la revendication 1 ou 2, dans lequel ledit actionneur (100) comprend en outre un poussoir de soupape dédié (200b), ledit poussoir de soupape dédié (200b) comprenant une came de freinage (230b), ladite came de freinage (230b) ayant un lobe de came de freinage (232), et ledit lobe de came de freinage (232) actionnant ledit piston de freinage (160) pour ouvrir la soupape (300a) parmi les deux soupapes d'échappement (300) lorsque ledit piston de freinage (160) est dans ladite position opérationnelle.
  4. Appareil de la revendication 3, dans lequel ledit actionneur (100) comprend en outre un ressort (198b) pour solliciter ledit poussoir de soupape dédié (200b) à l'écart dudit piston de freinage (160).
  5. Appareil de l'une quelconque des revendications 1 à 4, dans lequel ledit actionneur (100) comprend en outre un poussoir de soupape de freinage intégré dans ledit poussoir de soupape d'échappement (200), ledit poussoir de soupape de freinage ayant un lobe de came de freinage (232) intégré dans ladite came d'échappement (230), ledit lobe de came d'échappement (220) de la came d'échappement (230) étant élargi pour recevoir l'intégration dudit lobe de came de freinage (232), et ledit lobe de came de freinage (232) actionnant ledit piston de freinage (160) pour ouvrir la soupape d'échappement de freinage (300a) lorsque ledit piston de freinage (160) est dans ladite position opérationnelle.
  6. Appareil de la revendication 5, comprenant en outre un dispositif de réinitialisation de frein moteur (150) pour modifier le profil de levée de soupape produit par ledit lobe de came d'échappement élargi (220) au cours du fonctionnement de freinage moteur, et ledit dispositif de réinitialisation (150) comprenant un piston de réinitialisation (165) et au moins un passage d'écoulement de réinitialisation (167).
  7. Appareil de l'une quelconque des revendications 1 à 6, comprenant en outre un dispositif de réglage de jeu de soupape intégré dans ledit actionneur (100) pour régler un jeu ou un espace (132) entre ledit actionneur (100) et la soupape (300a) parmi les soupapes d'échappement (300).
  8. Appareil de l'une quelconque des revendications 1 à 7, dans lequel ladite unité de commande (50) comprend un système électro-hydro-mécanique, ledit système électro-hydro-mécanique comprenant une électrovanne (51) pour alimenter et arrêter un écoulement de fluide vers ledit piston de freinage (160) ; et ledit écoulement de fluide commandant le mouvement dudit piston de freinage (160) entre la position non opérationnelle et la position opérationnelle.
  9. Appareil de l'une quelconque des revendications 1 à 8, dans lequel ladite unité de commande (50) comprend en outre un drain d'écoulement pour drainer l'écoulement de fluide hors dudit de freinage piston (160), et ledit drain d'écoulement comprenant un orifice de purge (197) ou un passage de drainage d'écoulement (167).
  10. Procédé de modification de levée de soupape de moteur dans un moteur à combustion interne pour produire un événement de soupape de moteur auxiliaire qui est différent d'un fonctionnement de moteur normal, le moteur ayant un dispositif de commande de soupape de moteur comprenant deux soupapes de moteur (300), un coupleur de soupapes (400), un culbuteur (210) et un poussoir de soupape de moteur (200) pour ouvrir et fermer de manière cyclique les deux soupapes de moteur (300), caractérisé en ce que ledit procédé comprend les étapes qui consistent : (a) à fournir un actionneur (100) comprenant un système hydraulique intégré dans ledit dispositif de commande de soupape d'échappement, ledit système hydraulique comprenant un piston hydraulique unique (160) disposé de manière coulissante dans ledit coupleur de soupapes (400) entre une position non opérationnelle et une position opérationnelle, dans ladite position non opérationnelle, ledit piston hydraulique (160) étant rétracté et désengagé dudit fonctionnement de moteur normal et non soumis à une charge de l'une quelconque des deux soupapes de moteur (300), et dans ladite position opérationnelle, ledit piston hydraulique (160) étant étendu et ouvrant uniquement une soupape (300a) parmi les deux soupapes de moteur (300) pour ledit événement de soupape de moteur auxiliaire ; (b) à fournir une unité de commande (50) pour déplacer ledit piston hydraulique (160) avec un écoulement de fluide ; (c) à activer ladite unité de commande (50) et à fournir l'écoulement de fluide audit piston hydraulique (160) ; (d) à déplacer ledit piston hydraulique (160) de ladite position non opérationnelle à ladite position opérationnelle ; (e) à agir sur ledit piston hydraulique (160) par ledit actionneur (100); et à ouvrir uniquement une soupape (300a) parmi les deux soupapes de moteur (300) pour ledit événement de soupape de moteur auxiliaire.
  11. Procédé de la revendication 10, dans lequel l'actionneur (100) comporte un poussoir de soupape dédié (200b), ledit poussoir de soupape dédié (200b) comprenant une came dédiée (230b), et ladite came dédiée (230b) ayant un lobe de came dédié (223) ; et où l'étape qui consiste à agir sur ledit piston hydraulique (160) par ledit actionneur (100) comporte l'actionnement dudit piston hydraulique (160) par le lobe de came dédié (223) dudit poussoir de soupape dédié (200b).
  12. Procédé des revendications 10 et 11, comprenant en outre les étapes qui consistent : (a) à fournir une unité de commande (50) avec un drain d'écoulement ayant un orifice de purge (197) ou un passage de drainage d'écoulement (167) ; (b) à désactiver ladite unité de commande (50) et à arrêter l'écoulement de fluide vers ledit piston hydraulique (160) ; (c) à ouvrir ledit orifice de purge (197) ou ledit passage de drainage d'écoulement (167) ; (d) à drainer le fluide hors dudit piston hydraulique (160) à travers ledit drain d'écoulement ; (e) à déplacer ledit piston hydraulique (160) à la position non
    opérationnelle ; et (f) à désengager ledit actionneur (100) dudit fonctionnement de mot eur normal et à désactiver ledit événement de soupape de moteur auxiliaire.
  13. Procédé de la revendication 10, dans lequel l'actionneur (100) comporte un lobe de came auxiliaire (232) intégré dans une came (230) dudit poussoir de soupape de moteur (200), un lobe de came (220) de la came (230) pour le fonctionnement de moteur normal étant élargi pour recevoir l'intégration dudit lobe de came auxiliaire (232), ledit procédé comprenant en outre les étapes qui consistent: (a) à fournir un dispositif de réinitialisation (150) pour modifier le profil de levée de soupape produit par le lobe de came élargi (220), ledit dispositif de réinitialisation (150) comprenant un piston de réinitialisation (165) et un passage d'écoulement de réinitialisation (167) ; (b) à déplacer ledit piston de réinitialisation (165) et à libérer ledit passage d'écoulement de réinitialisation (167) ; (c) à drainer le fluide hors dudit piston hydraulique (160) et à déplacer ledit piston hydraulique (160) de ladite position opérationnelle à ladite position non opérationnelle ; (d) à désengager ledit piston hydraulique (160) des soupapes de moteur ; à ouvrir et ensuite à fermer les deux soupapes de moteur (300) par le lobe de came élargi (220) par l'intermédiaire dudit poussoir de soupape de moteur (200) ; (f) à déplacer ledit piston de réinitialisation (165) et à bloquer ledit passage d'écoulement de réinitialisation (167) ; (g) à remplir à nouveau ledit piston hydraulique (160) et à déplacer ledit piston hydraulique (160) de ladite position non opérationnelle à ladite position opérationnelle ; (h) à actionner ledit piston hydraulique (160) avec le lobe de came auxiliaire (232) par l'intermédiaire dudit dispositif de réglage de jeu de soupape ; et (i) à ouvrir une soupape (300a) parmi les deux soupapes de moteur (300) pour ledit événement de soupape de moteur auxiliaire.
  14. Procédé de la revendication 13, comprenant en outre les étapes qui consistent : (a) à déplacer ledit poussoir de soupape de moteur (200) vers l'avant par le lobe de came élargi (220) ; (b) à bloquer l'écoulement de fluide de ladite unité de commande (50) vers ledit piston hydraulique (160) ; (c) à déplacer ledit coupleur de soupapes (400) par ledit poussoir de soupape de moteur (200) ; (d) à ouvrir ledit passage d'écoulement de réinitialisation (167) et à évacuer le fluide hors dudit piston hydraulique (160) ; (e) à déplacer ledit piston hydraulique (160) de ladite position opérationnelle à ladite position non opérationnelle ; (f) à désengager ledit dispositif d'actionnement (100) des soupapes de moteur (300) ; (g) à déplacer les deux soupapes de moteur (300) par le lobe de came élargi (220) par l'intermédiaire dudit poussoir de soupape de moteur (200) ; (h) à déplacer ledit poussoir de soupape de moteur (200) vers l'arrière et à diriger l'écoulement de fluide de ladite unité de commande (50) vers ledit piston hydraulique (160) ; (i) à remplir à nouveau ledit piston hydraulique (160) et à ramener ledit piston hydraulique (160) de ladite position non opérationnelle à ladite position opérationnelle; (j) à bloquer le passage d'écoulement de réinitialisation (167) et à actionner ledit piston hydraulique (160) par le lobe de came auxiliaire (232) par l'intermédiaire dudit dispositif de réglage de jeu de soupape ; et (k) à ouvrir la soupape de moteur (300a) pour ledit événement de soupape de moteur auxiliaire.
EP11006451.6A 2009-01-05 2009-12-28 Dispositifs de freinage de moteur et procédés Not-in-force EP2444602B1 (fr)

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
US12/348,317 US7984705B2 (en) 2009-01-05 2009-01-05 Engine braking apparatus with two-level pressure control valves
US12/348,320 US8065987B2 (en) 2009-01-05 2009-01-05 Integrated engine brake with mechanical linkage
CN200920142242U CN201372829Y (zh) 2009-04-07 2009-04-07 摇臂-阀桥组合式发动机制动装置
CN 200910056200 CN101994538B (zh) 2009-08-10 2009-08-10 一种用于发动机制动的驱动机构
CN 200910056670 CN101994539B (zh) 2009-08-19 2009-08-19 一种发动机制动装置
CN 200910194868 CN102003239B (zh) 2009-08-31 2009-08-31 一种快速制动的发动机制动装置
CN 200910194859 CN102003238B (zh) 2009-08-31 2009-08-31 一种发动机制动装置
CN 200910194858 CN102003237B (zh) 2009-08-31 2009-08-31 一种发动机制动的改进装置
CN 200910194871 CN102003242B (zh) 2009-08-31 2009-08-31 一种改进的发动机制动装置
CN 200910194869 CN102003240B (zh) 2009-08-31 2009-08-31 一种发动机制动装置的改进结构
CN 200910194857 CN102003236B (zh) 2009-08-31 2009-08-31 一种制造成本低的发动机制动装置
CN 200910194870 CN102003241B (zh) 2009-08-31 2009-08-31 一种改进的用于发动机制动的驱动机构
CN 200910195285 CN102011622B (zh) 2009-09-07 2009-09-07 一种改进的发动机制动的驱动装置
EP09837091.9A EP2384396B1 (fr) 2009-01-05 2009-12-28 Dispositifs et procédés de freinage moteur

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP09837091.9 Division 2009-12-28
EP09837091.9A Division EP2384396B1 (fr) 2009-01-05 2009-12-28 Dispositifs et procédés de freinage moteur
EP09837091.9A Division-Into EP2384396B1 (fr) 2009-01-05 2009-12-28 Dispositifs et procédés de freinage moteur

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EP2444602A1 EP2444602A1 (fr) 2012-04-25
EP2444602B1 true EP2444602B1 (fr) 2015-06-24

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EP11006451.6A Not-in-force EP2444602B1 (fr) 2009-01-05 2009-12-28 Dispositifs de freinage de moteur et procédés
EP11006452.4A Not-in-force EP2439381B1 (fr) 2009-01-05 2009-12-28 Dispositifs de freinage de moteur et procédés

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KR (1) KR101290440B1 (fr)
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EP2384396A4 (fr) 2012-11-28
EP2384396A2 (fr) 2011-11-09
RU2011132887A (ru) 2013-02-10
EP2384396B1 (fr) 2014-06-25
RU2479735C1 (ru) 2013-04-20
BRPI0922516B1 (pt) 2020-10-06
EP2444602A1 (fr) 2012-04-25
KR20110112390A (ko) 2011-10-12
EP2439381A1 (fr) 2012-04-11
KR101290440B1 (ko) 2013-07-26
EP2439381B1 (fr) 2014-09-10

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