FR2375447A1 - Dispositif de freinage pour moteurs a pistons a mouvement alternatif et a quatre temps - Google Patents

Dispositif de freinage pour moteurs a pistons a mouvement alternatif et a quatre temps

Info

Publication number
FR2375447A1
FR2375447A1 FR7738796A FR7738796A FR2375447A1 FR 2375447 A1 FR2375447 A1 FR 2375447A1 FR 7738796 A FR7738796 A FR 7738796A FR 7738796 A FR7738796 A FR 7738796A FR 2375447 A1 FR2375447 A1 FR 2375447A1
Authority
FR
France
Prior art keywords
braking device
stroke
piston engines
jacks
operating
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.)
Withdrawn
Application number
FR7738796A
Other languages
English (en)
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 AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg 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 Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Publication of FR2375447A1 publication Critical patent/FR2375447A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34446—Fluid accumulators for the feeding circuit
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/184—Number of cylinders ten

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)
  • Hydraulic Motors (AREA)

Abstract

Dispositif de freinage pour moteurs à pistons à mouvement alternatif et à quatre temps qui, pour la commande de chaque soupape d'échappement, comportent un vérin de commande hydraulique actionné par un arbre à cames et un vérin de manoeuvre. Les vérins de manoeuvre 14, 14a, 14b, sont des vérins étagés et à tous les conduits de distribution 13, 13a, 13b; 21, 21a, 21b est associé un organe de distribution commun 15 au moyen duquelles vérins de manoeuvre peuvent chacun être mis en communication avec un autre vérin de commande 11, 11a, 11b et, en même temps, seuls les grands pistons 17, 17a, 17b des vérins de manoeuvre peuvent être soumis à l'action du fluide. L'invention est applicable notamment à des véhicules automobiles.
FR7738796A 1976-12-24 1977-12-22 Dispositif de freinage pour moteurs a pistons a mouvement alternatif et a quatre temps Withdrawn FR2375447A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762658927 DE2658927A1 (de) 1976-12-24 1976-12-24 Bremseinrichtung fuer viertakt-hubkolbenbrennkraftmaschinen

Publications (1)

Publication Number Publication Date
FR2375447A1 true FR2375447A1 (fr) 1978-07-21

Family

ID=5996690

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738796A Withdrawn FR2375447A1 (fr) 1976-12-24 1977-12-22 Dispositif de freinage pour moteurs a pistons a mouvement alternatif et a quatre temps

Country Status (12)

Country Link
US (1) US4174687A (fr)
JP (1) JPS5381812A (fr)
AT (1) AT382209B (fr)
CH (1) CH625016A5 (fr)
DD (1) DD132987A1 (fr)
DE (1) DE2658927A1 (fr)
FR (1) FR2375447A1 (fr)
GB (1) GB1552888A (fr)
IT (1) IT1088580B (fr)
RO (1) RO74841A (fr)
SE (1) SE426969B (fr)
TR (1) TR19589A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399991A1 (fr) * 1989-05-24 1990-11-28 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Procédé et dispositif de commande du déplacement d'une soupape actionnée hydrauliquement
EP0584575A1 (fr) * 1992-08-22 1994-03-02 MAN Nutzfahrzeuge Aktiengesellschaft Moteur à combustion interne ayant un mécanisme pour changer les modes opératoires.
WO1996004470A1 (fr) * 1994-08-04 1996-02-15 Caterpillar Inc. Systeme de freinage comportant l'ouverture simultanee d'une soupape d'echappement
EP2801706A1 (fr) * 2013-05-09 2014-11-12 C.R.F. Società Consortile per Azioni Moteur à combustion interne, avec un système de commande variable de soupape d'admission, pourvu d'une vanne à tiroir électrique à trois voies, laquelle peut être alimentée avec trois niveaux de courant, et méthode de contrôle de ce moteur

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333430A (en) * 1979-06-15 1982-06-08 Rosquist Von D Engine brake
JPS5722250U (fr) * 1980-07-11 1982-02-04
JPS5724431A (en) * 1980-07-17 1982-02-09 Hino Motors Ltd Engine brake device for 4-cycle internal combustion engine
US4572114A (en) * 1984-06-01 1986-02-25 The Jacobs Manufacturing Company Process and apparatus for compression release engine retarding producing two compression release events per cylinder per engine cycle
US4592319A (en) * 1985-08-09 1986-06-03 The Jacobs Manufacturing Company Engine retarding method and apparatus
US4791895A (en) * 1985-09-26 1988-12-20 Interatom Gmbh Electro-magnetic-hydraulic valve drive for internal combustion engines
US4664070A (en) * 1985-12-18 1987-05-12 The Jacobs Manufacturing Company Hydro-mechanical overhead for internal combustion engine
JPH06272522A (ja) * 1993-01-21 1994-09-27 Nippon Soken Inc 弁駆動装置
US5347968A (en) * 1993-05-24 1994-09-20 Caterpillar Inc. Integral air compression system
US5647318A (en) * 1994-07-29 1997-07-15 Caterpillar Inc. Engine compression braking apparatus and method
US5540201A (en) * 1994-07-29 1996-07-30 Caterpillar Inc. Engine compression braking apparatus and method
US5572961A (en) * 1995-04-05 1996-11-12 Ford Motor Company Balancing valve motion in an electrohydraulic camless valvetrain
US6644271B1 (en) 2002-10-30 2003-11-11 Caterpillar Inc Engine braking system
US6755162B1 (en) * 2003-03-31 2004-06-29 General Motors Corporation Distributed accumulator for hydraulic camless valve actuation system
DE102009058171A1 (de) * 2009-12-15 2011-06-16 Benteler Automobiltechnik Gmbh Hydraulisch betätigte Abgasklappe
JP2013100763A (ja) * 2011-11-08 2013-05-23 Suzuki Motor Corp ４サイクルエンジン
US9863293B2 (en) 2012-08-01 2018-01-09 GM Global Technology Operations LLC Variable valve actuation system including an accumulator and a method for controlling the variable valve actuation system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1269428A (fr) * 1960-08-18 1961-08-11 Système d'entraînement et de freinage pour véhicules

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1696984A (en) * 1926-11-08 1929-01-01 Trbojevich Nikola Fluid-operated valve
US1903328A (en) * 1927-04-01 1933-04-04 Noble Warren Hydraulic valve gear
US3220392A (en) * 1962-06-04 1965-11-30 Clessie L Cummins Vehicle engine braking and fuel control system
US3534718A (en) * 1968-04-01 1970-10-20 Carl Pasquin Rotatable valve for controlling hydraulic operation of poppet valves

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1269428A (fr) * 1960-08-18 1961-08-11 Système d'entraînement et de freinage pour véhicules

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399991A1 (fr) * 1989-05-24 1990-11-28 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Procédé et dispositif de commande du déplacement d'une soupape actionnée hydrauliquement
EP0584575A1 (fr) * 1992-08-22 1994-03-02 MAN Nutzfahrzeuge Aktiengesellschaft Moteur à combustion interne ayant un mécanisme pour changer les modes opératoires.
WO1996004470A1 (fr) * 1994-08-04 1996-02-15 Caterpillar Inc. Systeme de freinage comportant l'ouverture simultanee d'une soupape d'echappement
EP2801706A1 (fr) * 2013-05-09 2014-11-12 C.R.F. Società Consortile per Azioni Moteur à combustion interne, avec un système de commande variable de soupape d'admission, pourvu d'une vanne à tiroir électrique à trois voies, laquelle peut être alimentée avec trois niveaux de courant, et méthode de contrôle de ce moteur
US9127576B2 (en) 2013-05-09 2015-09-08 C.R.F. SOCIETá CONSORTILE PER AZIONI Internal-combustion engine, with system for variable actuation of the intake valves provided with a three-way electric valve having three levels of supply current, and method for controlling said engine

Also Published As

Publication number Publication date
AT382209B (de) 1987-01-26
US4174687A (en) 1979-11-20
SE7714700L (sv) 1978-06-25
CH625016A5 (fr) 1981-08-31
DD132987A1 (de) 1978-11-22
TR19589A (tr) 1979-09-01
DE2658927A1 (de) 1978-07-06
RO74841A (fr) 1980-10-30
GB1552888A (en) 1979-09-19
SE426969B (sv) 1983-02-21
ATA775977A (de) 1986-06-15
IT1088580B (it) 1985-06-10
JPS5381812A (en) 1978-07-19

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