WO2007085754A3 - Device for deactivating cylinders of an internal combustion engine - Google Patents

Device for deactivating cylinders of an internal combustion engine Download PDF

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Publication number
WO2007085754A3
WO2007085754A3 PCT/FR2007/050644 FR2007050644W WO2007085754A3 WO 2007085754 A3 WO2007085754 A3 WO 2007085754A3 FR 2007050644 W FR2007050644 W FR 2007050644W WO 2007085754 A3 WO2007085754 A3 WO 2007085754A3
Authority
WO
WIPO (PCT)
Prior art keywords
combustion engine
internal combustion
disabling
cylinder
fluid
Prior art date
Application number
PCT/FR2007/050644
Other languages
French (fr)
Other versions
WO2007085754A2 (en
Inventor
Said Izelfanane
Original Assignee
Peugeot Citroen Automobiles Sa
Said Izelfanane
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 Peugeot Citroen Automobiles Sa, Said Izelfanane filed Critical Peugeot Citroen Automobiles Sa
Priority to EP07731495A priority Critical patent/EP1984603A2/en
Publication of WO2007085754A2 publication Critical patent/WO2007085754A2/en
Publication of WO2007085754A3 publication Critical patent/WO2007085754A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/02—Cutting-out
    • 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
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • 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
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • F01L13/0005—Deactivating 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L2001/2444—Details relating to the hydraulic feeding circuit, e.g. lifter oil manifold assembly [LOMA]
    • 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
    • F01L13/0005—Deactivating valves
    • F01L2013/001—Deactivating cylinders
    • 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
    • F01L2820/01—Absolute values

Abstract

The subject of the present invention is a device for deactivating at least one cylinder (17, 18) of an internal combustion engine of the multi-cylinder type, comprising means (20, 21, 22, 23) for disabling the inlet or exhaust valves of the said cylinder which means can be actuated by a pressurized fluid, a pressurized-fluid supply circuit (15), a controlled electrically operated valve (14) and a secondary circuit (5) connecting the said electrically-operated valve (14) to the said disabling means (20, 21, 22, 23), auxiliary supply means (30) intended to supply the secondary circuit (5) with fluid outside of periods during which said disabling means (20, 21, 22, 23) are being actuated, and characterized in that auxiliary supply means (30) comprise a valve (34) intended to keep the pressure in the auxiliary supply means (30) below a threshold pressure (Pseuil).
PCT/FR2007/050644 2006-01-25 2007-01-12 Device for deactivating cylinders of an internal combustion engine WO2007085754A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07731495A EP1984603A2 (en) 2006-01-25 2007-01-12 Device for deactivating cylinders of an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0650254A FR2896540B1 (en) 2006-01-25 2006-01-25 DEVICE FOR DISENGAGING CYLINDERS OF AN INTERNAL COMBUSTION ENGINE
FR0650254 2006-01-25

Publications (2)

Publication Number Publication Date
WO2007085754A2 WO2007085754A2 (en) 2007-08-02
WO2007085754A3 true WO2007085754A3 (en) 2007-09-20

Family

ID=37199221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/050644 WO2007085754A2 (en) 2006-01-25 2007-01-12 Device for deactivating cylinders of an internal combustion engine

Country Status (3)

Country Link
EP (1) EP1984603A2 (en)
FR (1) FR2896540B1 (en)
WO (1) WO2007085754A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6439176B1 (en) * 2001-03-05 2002-08-27 Delphi Technologies, Inc. Control system for deactivation of valves in an internal combustion engine
US6557518B1 (en) * 2002-01-18 2003-05-06 General Motors Corporation Cylinder deactivation apparatus
FR2837871A1 (en) * 2002-03-13 2003-10-03 Stanadyne Corp Hydraulic lash adjuster for internal combustion engine has primary and secondary piston assemblies that cooperate to provide soft stop for displacement of primary piston assembly when secondary hydraulic circuit is activated
US6691652B2 (en) * 2001-09-25 2004-02-17 Avl List Gmbh Variable valve drive
US20040244744A1 (en) * 2003-06-03 2004-12-09 Falkowski Alan G. Multiple displacement system for an engine
WO2006056709A2 (en) * 2004-11-26 2006-06-01 Peugeot Citroen Automobiles Sa Device for deactivating internal combustion engine cylinders

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6439176B1 (en) * 2001-03-05 2002-08-27 Delphi Technologies, Inc. Control system for deactivation of valves in an internal combustion engine
US6691652B2 (en) * 2001-09-25 2004-02-17 Avl List Gmbh Variable valve drive
US6557518B1 (en) * 2002-01-18 2003-05-06 General Motors Corporation Cylinder deactivation apparatus
FR2837871A1 (en) * 2002-03-13 2003-10-03 Stanadyne Corp Hydraulic lash adjuster for internal combustion engine has primary and secondary piston assemblies that cooperate to provide soft stop for displacement of primary piston assembly when secondary hydraulic circuit is activated
US20040244744A1 (en) * 2003-06-03 2004-12-09 Falkowski Alan G. Multiple displacement system for an engine
WO2006056709A2 (en) * 2004-11-26 2006-06-01 Peugeot Citroen Automobiles Sa Device for deactivating internal combustion engine cylinders

Also Published As

Publication number Publication date
EP1984603A2 (en) 2008-10-29
FR2896540B1 (en) 2008-04-04
WO2007085754A2 (en) 2007-08-02
FR2896540A1 (en) 2007-07-27

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