GB1250612A - - Google Patents

Info

Publication number
GB1250612A
GB1250612A GB1250612DA GB1250612A GB 1250612 A GB1250612 A GB 1250612A GB 1250612D A GB1250612D A GB 1250612DA GB 1250612 A GB1250612 A GB 1250612A
Authority
GB
United Kingdom
Prior art keywords
valve
engine
rocker
switch
solenoid valve
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
Application number
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 filed Critical
Publication of GB1250612A publication Critical patent/GB1250612A/en
Expired 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
    • 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
    • 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

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)

Abstract

1,250,612. Regulating I.C. engines. SIMMS GROUP RESEARCH & DEVELOPMENT Ltd. June 2, 1969 [March 1, 1968], No.10070/68. Heading F1B. To effect engine braking when the fuel supply is cut-off the initial position of one or each exhaust valve 11 is adjusted from the normal closed position to an open position. A fuel injection pump control rod 10 operable by an accelerator pedal 12 is movable from the dashed line position 9 to the full line position on engine over-running to cut-off the fuel supply to engine injectors and close the switch 13 in the circuit of a solenoid valve 16. The solenoid valve 16 connects an engine lubricating oil supply line 18 to the cylinder 22 with the switch 13 closed to move the piston 21 from abutment with the cylinder end 22a to abutment with the cylinder end 22b. The stem 25 on the piston 21 moves the arm 26 to rotate a shaft 27 supported for rotation about its axis and mounted eccentrically on the end of the rocker pivot shaft 28. The rocker 29 is lowered to take up the clearance between the rocker and the valve 11 and provide an initial opening, e.g. 0À020 inches, of the valve. The rocker 29 is operated by an engine cam and a push rod 30. A manually operable switch 17 is provided in the solenoid valve circuit to allow the operation of the valve 16 to be over-ridden.
GB1250612D 1968-03-01 1968-03-01 Expired GB1250612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1007068 1968-03-01

Publications (1)

Publication Number Publication Date
GB1250612A true GB1250612A (en) 1971-10-20

Family

ID=9960892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250612D Expired GB1250612A (en) 1968-03-01 1968-03-01

Country Status (1)

Country Link
GB (1) GB1250612A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311179A1 (en) * 1975-05-16 1976-12-10 Eaton Corp MECHANISM FOR TAKING A VALVE OUT OF SERVICE
FR2329849A1 (en) * 1975-10-30 1977-05-27 Eaton Corp VALVE DISCONNECTION DEVICE AND ITS CONTROL
EP0543210A1 (en) * 1991-11-08 1993-05-26 IVECO FIAT S.p.A. Engine comprising a continuous braking device, particularly for an industrial vehicle
US5586531A (en) * 1995-11-28 1996-12-24 Cummins Engine Company, Inc. Engine retarder cycle
US5626116A (en) * 1995-11-28 1997-05-06 Cummins Engine Company, Inc. Dedicated rocker lever and cam assembly for a compression braking system
AT2431U1 (en) * 1997-04-09 1998-10-27 Avl List Gmbh ENGINE BRAKE OF A FOUR-STOCK COMBUSTION ENGINE
EP1143121A3 (en) * 2000-03-21 2001-10-24 Deere & Company Engine braking system with displaceable rocker arm pivot centre
WO2003067036A1 (en) 2002-02-04 2003-08-14 Caterpillar Inc. Engine valve actuator
EP2162600A1 (en) * 2007-06-01 2010-03-17 Jacobs Vehicle Systems, Inc. Variabale valve actuation system
CN101922326A (en) * 2009-06-11 2010-12-22 斯特雷帕拉瓦有限公司 The driven unit of motor vehicle engine brake
CN109667639A (en) * 2018-12-28 2019-04-23 潍柴动力股份有限公司 Engine braking system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311179A1 (en) * 1975-05-16 1976-12-10 Eaton Corp MECHANISM FOR TAKING A VALVE OUT OF SERVICE
FR2329849A1 (en) * 1975-10-30 1977-05-27 Eaton Corp VALVE DISCONNECTION DEVICE AND ITS CONTROL
EP0543210A1 (en) * 1991-11-08 1993-05-26 IVECO FIAT S.p.A. Engine comprising a continuous braking device, particularly for an industrial vehicle
US5335636A (en) * 1991-11-08 1994-08-09 Iveco Fiat S.P.A. Engine comprising a continuous braking device, particularly for an industrial vehicle
US5586531A (en) * 1995-11-28 1996-12-24 Cummins Engine Company, Inc. Engine retarder cycle
US5626116A (en) * 1995-11-28 1997-05-06 Cummins Engine Company, Inc. Dedicated rocker lever and cam assembly for a compression braking system
AT2431U1 (en) * 1997-04-09 1998-10-27 Avl List Gmbh ENGINE BRAKE OF A FOUR-STOCK COMBUSTION ENGINE
EP1143121A3 (en) * 2000-03-21 2001-10-24 Deere & Company Engine braking system with displaceable rocker arm pivot centre
WO2003067036A1 (en) 2002-02-04 2003-08-14 Caterpillar Inc. Engine valve actuator
EP2162600A1 (en) * 2007-06-01 2010-03-17 Jacobs Vehicle Systems, Inc. Variabale valve actuation system
EP2162600A4 (en) * 2007-06-01 2011-09-07 Jacobs Vehicle Systems Inc Variabale valve actuation system
CN101922326A (en) * 2009-06-11 2010-12-22 斯特雷帕拉瓦有限公司 The driven unit of motor vehicle engine brake
CN109667639A (en) * 2018-12-28 2019-04-23 潍柴动力股份有限公司 Engine braking system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee