[go: up one dir, main page]

EP1085184A3 - Device and method for varying the compression ratio of an internal combustion engine - Google Patents

Device and method for varying the compression ratio of an internal combustion engine Download PDF

Info

Publication number
EP1085184A3
EP1085184A3 EP00117326A EP00117326A EP1085184A3 EP 1085184 A3 EP1085184 A3 EP 1085184A3 EP 00117326 A EP00117326 A EP 00117326A EP 00117326 A EP00117326 A EP 00117326A EP 1085184 A3 EP1085184 A3 EP 1085184A3
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
varying
connecting rod
compression ratio
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Withdrawn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
EP00117326A
Other languages
German (de)
French (fr)
Other versions
EP1085184A2 (en
Inventor
Manfred Dipl.-Ing. Kloft
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1085184A2 publication Critical patent/EP1085184A2/en
Publication of EP1085184A3 publication Critical patent/EP1085184A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Es wird ein Verfahren zur Veränderung der Verdichtung einer Hubkolbenbrennkraftmaschine und eine Vorrichtung zur Durchführung dieses Verfahrens vorgeschlagen. Die Vorrichtung umfaßt mindestens ein Pleuel, in dessen einer Kurbelwelle zuordenbaren Pleuelauge eine Hülse mit einer Kurbelwellen-Durchgriffsöffnung verdrehbar angeordnet ist, wobei die Kurbelwellen-Durchgriffsöffnung exzentrisch zum Pleuelauge angeordnet ist, und eine mindestens ein mit der Hülse zu deren Drehstellungsfestlegung in Eingriff bringbares Verriegelungselement umfassenden Verriegelungseinrichtung. Die Vorrichtung zeichnet sich dadurch aus, daß das Verriegelungselement (51) mit Hilfe einer Kolben- und Zylindereinheit (54) verlagerbar ist.

Figure 00000001
A method for changing the compression of a reciprocating piston internal combustion engine and a device for carrying out this method are proposed. The device comprises at least one connecting rod, in the connecting rod eye of which a crankshaft can be assigned, a sleeve with a crankshaft passage opening is rotatably arranged, the crankshaft passage opening being arranged eccentrically to the connecting rod eye, and comprising at least one locking element which can be brought into engagement with the sleeve for fixing its rotational position locking device. The device is characterized in that the locking element (51) can be displaced with the aid of a piston and cylinder unit (54).
Figure 00000001
EP00117326A 1999-09-17 2000-08-21 Device and method for varying the compression ratio of an internal combustion engine Withdrawn EP1085184A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944669 1999-09-17
DE1999144669 DE19944669A1 (en) 1999-09-17 1999-09-17 Device and method for changing the compression of a reciprocating piston internal combustion engine

Publications (2)

Publication Number Publication Date
EP1085184A2 EP1085184A2 (en) 2001-03-21
EP1085184A3 true EP1085184A3 (en) 2002-03-27

Family

ID=7922421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117326A Withdrawn EP1085184A3 (en) 1999-09-17 2000-08-21 Device and method for varying the compression ratio of an internal combustion engine

Country Status (2)

Country Link
EP (1) EP1085184A3 (en)
DE (1) DE19944669A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10211971A1 (en) * 2002-03-19 2003-10-02 Bayerische Motoren Werke Ag Device for altering compression ratio of reciprocating piston engine has connecting rod mounted on crankshaft journal via eccentric sleeve with unequal mass distribution so that sleeve is rotated by out-of-balance moment
DE10218744A1 (en) * 2002-04-26 2003-11-13 Bayerische Motoren Werke Ag Device to vary compression ratio of reciprocating piston engine with locking timing extended to a time period integrating occurring locking forces, to reduce wear
DE10218740A1 (en) * 2002-04-26 2003-11-13 Bayerische Motoren Werke Ag Device to vary compression ratio of reciprocating piston engines has locking device consisting of locking spring element and damper element engaging into locking aperture, to reduce costs
DE10230428A1 (en) * 2002-07-06 2004-01-15 Bayerische Motoren Werke Ag Eccentric adjusting device for crank mechanisms for IC engines has eccentric sleeve with locking structure engaging with locking unit to form blocking mechanism
DE10230427A1 (en) * 2002-07-06 2004-01-15 Bayerische Motoren Werke Ag Switching device for crank mechanism of IC engines has coil unit to generate magnetic field for selective switching of locking unit for eccentric device
DE10230429A1 (en) * 2002-07-06 2004-01-15 Bayerische Motoren Werke Ag Eccentric adjusting device for crank mechanism for IC engines has reverse rotating preventing device with ratchet mechanism to prevent return movement of shell
DE102008031992B4 (en) * 2008-07-07 2015-02-12 Audi Ag Device for adjusting and locking an eccentric bush in a bearing eye of a connecting rod of an internal combustion engine
DE102017207644A1 (en) 2017-05-05 2018-11-08 Ford Global Technologies, Llc Method for changing a cylinder-related compression ratio e of a spark-ignited internal combustion engine and internal combustion engine for carrying out such a method
DE102018210265B4 (en) 2018-06-25 2022-04-21 Ford Global Technologies, Llc Pistons for an internal combustion engine and method for operating an internal combustion engine with such a piston
DE102018123500A1 (en) * 2018-09-25 2020-03-26 Man Energy Solutions Se Device and method for adjusting the length of a connecting rod of a cylinder of an internal combustion engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE384807A (en) *
EP0438121A1 (en) * 1990-01-17 1991-07-24 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Variable compression ratio apparatus for internal combustion engine
DE4226361A1 (en) * 1992-08-10 1994-04-07 Alex Zimmer Fuel-air mixt. compressing IC engine - has remaining space during compression varied w.r.t. mixt. feed quality in direction of best compression ratio
US5562068A (en) * 1994-07-13 1996-10-08 Honda Giken Kogyo Kabushiki Kaisha Compression ratio changing device in internal combustion engine
DE19703948C1 (en) * 1997-02-03 1998-06-18 Meta Motoren Energietech Device for altering the compression of a stroke piston internal combustion engine
DE19844200A1 (en) * 1998-09-26 1999-06-17 Victor Prof Dr Ing Gheorghiu Variable compression ratio crank drive

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140091A (en) * 1977-03-09 1979-02-20 Showers Jr Lewis M Uniform compression piston engine
DE4444555A1 (en) * 1994-12-01 1996-06-05 Wronna Werner Dipl Ing Internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE384807A (en) *
EP0438121A1 (en) * 1990-01-17 1991-07-24 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Variable compression ratio apparatus for internal combustion engine
DE4226361A1 (en) * 1992-08-10 1994-04-07 Alex Zimmer Fuel-air mixt. compressing IC engine - has remaining space during compression varied w.r.t. mixt. feed quality in direction of best compression ratio
US5562068A (en) * 1994-07-13 1996-10-08 Honda Giken Kogyo Kabushiki Kaisha Compression ratio changing device in internal combustion engine
DE19703948C1 (en) * 1997-02-03 1998-06-18 Meta Motoren Energietech Device for altering the compression of a stroke piston internal combustion engine
DE19844200A1 (en) * 1998-09-26 1999-06-17 Victor Prof Dr Ing Gheorghiu Variable compression ratio crank drive

Also Published As

Publication number Publication date
EP1085184A2 (en) 2001-03-21
DE19944669A1 (en) 2001-03-22

Similar Documents

Publication Publication Date Title
EP0918154A3 (en) Cylinder head for an internal combustion engine
EP1085184A3 (en) Device and method for varying the compression ratio of an internal combustion engine
EP0911511A3 (en) Method of injection of fuel into the combustion chamber of a diesel engine
DE60200787T2 (en) INTERNAL COMBUSTION ENGINE WITH ROTATABLE PLEUELBOLZ
EP0987412A3 (en) Intake system
EP1262652A3 (en) Cylinder head with injector
EP1085185A3 (en) Device and method for varying the compression ratio of an internal combustion engine
EP1273786A3 (en) Switching device for exhaust gas recirculation in an internal combustion engine
EP0909885A3 (en) Combustion engine with spark ignition
EP0764777A3 (en) Method and apparatus for controlling an internal combustion engine
EP1653571A3 (en) Contact element for electrically contacting component parts, particullary for ignition parts
EP1273783A3 (en) Method to operate an internal combustion engine
EP1234968A3 (en) Method for synchronizing the filling of the cylinders of an internal combustion engine
EP1162357A3 (en) Method and apparatus for monitoring the operations of an engine
EP1132606A3 (en) Control method for internal combustion engine
EP1270915A3 (en) Method for controlling an internal combustion engine
EP0945632A3 (en) Connecting rod for a reciprocating piston engine
EP1215082A3 (en) Device for fixing a first part to a fixed second part
EP1213466A3 (en) Method for the determination of the residual gas in the combustion space of a cylinder of a four stroke internal combustion engine
EP0952312A3 (en) Internal combustion engine
EP0916857A3 (en) Crankshaft for a multicylinder reciprocating piston engine, in particular internal combustion engine
EP1262659A3 (en) Fuel system for an internal combustion engine
EP1099845A3 (en) Piston with a connection between a cooling conduit and a wrist pin bore
EP1431609A3 (en) Torsional damping device
DE10056227C2 (en) Decompression device for a four-stroke engine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KLOFT, MANFRED DIPL.-ING.

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020928