EP1085185A3 - 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

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Publication number
EP1085185A3
EP1085185A3 EP00118203A EP00118203A EP1085185A3 EP 1085185 A3 EP1085185 A3 EP 1085185A3 EP 00118203 A EP00118203 A EP 00118203A EP 00118203 A EP00118203 A EP 00118203A EP 1085185 A3 EP1085185 A3 EP 1085185A3
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Withdrawn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
EP00118203A
Other languages
German (de)
French (fr)
Other versions
EP1085185A2 (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 EP1085185A2 publication Critical patent/EP1085185A2/en
Publication of EP1085185A3 publication Critical patent/EP1085185A3/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Withdrawn legal-status Critical Current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

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  • 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 eine Vorrichtung zur Veränderung der Verdichtung einer Hubkolbenbrennkraftmaschine mit mindestens einem 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, vorgeschlagen. Die Vorrichtung zeichnet sich dadurch aus, daß die Hülse (13) oder das Pleuel (3) zur Verdrehung der Hülse (13) mindestens eine mit einem Druckmedium beaufschlagbare Arbeitskammer (45;47) aufweist.

Figure 00000001
A device for changing the compression of a reciprocating piston internal combustion engine with at least one connecting rod, in the connecting rod eye of which a crankshaft can be assigned, a sleeve with a crankshaft through-opening is rotatably arranged, the crankshaft through-opening being arranged eccentrically to the connecting rod eye. The device is characterized in that the sleeve (13) or the connecting rod (3) for rotating the sleeve (13) has at least one working chamber (45; 47) which can be pressurized with a pressure medium.
Figure 00000001
EP00118203A 1999-09-17 2000-08-31 Device and method for varying the compression ratio of an internal combustion engine Withdrawn EP1085185A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999144668 DE19944668A1 (en) 1999-09-17 1999-09-17 Device for changing the compression of a reciprocating piston internal combustion engine
DE19944668 1999-09-17

Publications (2)

Publication Number Publication Date
EP1085185A2 EP1085185A2 (en) 2001-03-21
EP1085185A3 true EP1085185A3 (en) 2002-02-06

Family

ID=7922420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118203A Withdrawn EP1085185A3 (en) 1999-09-17 2000-08-31 Device and method for varying the compression ratio of an internal combustion engine

Country Status (2)

Country Link
EP (1) EP1085185A3 (en)
DE (1) DE19944668A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6408804B1 (en) * 2000-10-18 2002-06-25 Ford Global Technologies, Inc. Apparatus for varying the compression ratio of an internal combustion engine
US6371062B1 (en) * 2000-10-18 2002-04-16 Ford Global Technologies, Inc. Variable compression ratio connecting rods
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
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
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
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
EP2801713A1 (en) * 2013-05-07 2014-11-12 Wärtsilä Schweiz AG A Reciprocating Piston Combustion Engine and an Apparatus and a Method for Controlling Such an Engine
DE102013021635A1 (en) 2013-12-18 2015-06-18 Daimler Ag Reciprocating internal combustion engine
DE102014216531A1 (en) * 2014-08-20 2016-02-25 Schaeffler Technologies AG & Co. KG Device for changing a compression ratio of a cylinder unit of a reciprocating internal combustion engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251456A (en) * 1991-01-05 1992-07-08 Ford Motor Co I.c. engine with variable compression ratio
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

Family Cites Families (4)

* 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
DE3127760A1 (en) * 1981-07-14 1983-03-03 Günter 4600 Dortmund Olbrisch Reciprocating piston internal combustion engine with controllable, adjustable compression ratio
JPH0828314A (en) * 1994-07-13 1996-01-30 Honda Motor Co Ltd Variable compression ratio device for 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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251456A (en) * 1991-01-05 1992-07-08 Ford Motor Co I.c. engine with variable compression ratio
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

Also Published As

Publication number Publication date
EP1085185A2 (en) 2001-03-21
DE19944668A1 (en) 2001-03-22

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