EP0292603B1 - Kraft- oder Arbeitsmaschine, insbesondere Verbrennungskraftmaschine - Google Patents

Kraft- oder Arbeitsmaschine, insbesondere Verbrennungskraftmaschine Download PDF

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Publication number
EP0292603B1
EP0292603B1 EP87111871A EP87111871A EP0292603B1 EP 0292603 B1 EP0292603 B1 EP 0292603B1 EP 87111871 A EP87111871 A EP 87111871A EP 87111871 A EP87111871 A EP 87111871A EP 0292603 B1 EP0292603 B1 EP 0292603B1
Authority
EP
European Patent Office
Prior art keywords
rod portion
connecting rod
piston
production machine
rod
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 - Lifetime
Application number
EP87111871A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0292603A1 (de
Inventor
Gerhard Mederer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87111871T priority Critical patent/ATE60881T1/de
Priority to PCT/EP1988/000367 priority patent/WO1988008922A1/de
Priority to JP63504861A priority patent/JP2693197B2/ja
Publication of EP0292603A1 publication Critical patent/EP0292603A1/de
Application granted granted Critical
Publication of EP0292603B1 publication Critical patent/EP0292603B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/04—Engines with prolonged expansion in main cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/02—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft
    • 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
    • F02B75/048—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable crank stroke length
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2142—Pitmans and connecting rods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2173—Cranks and wrist pins

Definitions

  • Engine or machine in particular internal combustion engine
  • the invention relates to an engine or working machine, in particular an internal combustion engine with at least one cylinder and a piston which is axially displaceable therein and which is connected to the crankshaft via an upper connecting rod section and a lower connecting rod section connected by a joint to the crankshaft, and in which both connecting rod sections are connected by one articulated common pivot lever are supported on an axis fixed to the motor housing.
  • an internal combustion engine (DE-PS 30 30 615) it is known to connect the piston and the crankshaft to one another by means of two articulated connecting rod sections.
  • this internal combustion engine uses a pivot lever that engages a common joint for the two connecting rod sections and is supported at its other end on a variably adjustable eccentric.
  • an improved torque curve is achieved by achieving an extended residence time of the piston in the top dead center.
  • this object is achieved in that the upper connecting rod section at the end facing away from the piston has an axial extension which extends beyond the common joint, and in that the pivoting lever articulates with the end facing the connecting rod section on the extension.
  • the support axis for the swivel lever in the engine block is expediently designed to be eccentrically adjustable, the support axis being adjustable radially to the longitudinal central axis of the cylinder and axially transverse to the longitudinal central axis of the cylinder.
  • connecting rod sections and swivel levers allow the most effective torque to be shifted to the most effective crankshaft positions, which leads to low fuel consumption, shorter ignition delay and, accordingly, smooth combustion with quiet operation of the internal combustion engine. In addition, there is also a reduction in the piston side pressure and thus a reduced warming up of the engine and a reduced wear. It goes without saying that the inventive design of connecting rod sections and swivel levers equally in gasoline and diesel engines or in any power machines that are operated with a piston, e.g. Compressors or pumps, can be used.
  • An advantageous embodiment of the internal combustion engine can be achieved if the length of the lower connecting rod section is approximately 1.3 times the length of the upper connecting rod section, the total length of both connecting rods Sections about 3% larger than the distance between the connecting rod bearing of the upper connecting rod portion and the circle described by the connecting rod bearing of the lower connecting rod portion in the top dead center of the piston and that the length of the pivot lever is carried out approximately 1.2 times the length of the upper connecting rod portion is, the radial distance of the pivot point of the pivot lever from the cylinder axis is approximately 1.0 times the length of the upper connecting rod section and the base point of the projection of the pivot point on the cylinder axis from the crankshaft axis is a distance that is approximately 1/3 of the distance from the piston rod bearing of the upper connecting rod section from the crankshaft axis at the top dead center of the piston.
  • the upper connecting rod section is fork-shaped and carries a bearing washer fixedly against rotation, to which the lower connecting rod section is articulated and the pivoting lever is eccentrically articulated with the ends facing away from the crankshaft or the support axis.
  • the fork ends of the upper connecting rod section preferably have steps which are protruded by the bearing plate, the peripheral surface of the bearing plate supporting the lower connecting rod section and the part of the bearing plate extending in the area of the steps being articulated to the pivot lever.
  • the required axial extension at the upper connecting rod section and, moreover, a narrow construction for the connecting rod formed by the connecting rod sections is achieved, as a result of which the connecting rod sections and the pivoting lever can also be accommodated in a space-saving manner in multi-cylinder machines.
  • the support axis is advantageously formed in the motor housing. It is also possible to arrange the support axis outside the engine block. In the latter embodiment, the pivot lever for connection to the support axis extends through a recess in the motor housing wall.
  • 1 is a cylinder, e.g. referred to an internal combustion engine that slidably receives a piston 2.
  • the cylinder 1 is closed at the upper end by a plate-shaped cylinder head 3.
  • the devices for the supply of fuel and air or fuel mixture and the removal of combustion gases are not shown for reasons of clarity.
  • the piston 2 receives a piston pin 4, on which an upper connecting rod section 5 engages with its upper bearing 6 such that it can pivot.
  • the connecting rod section 5 is preferably fork-shaped and the legs 7 of the connecting rod section 5 hold in the area of the free ends by means of bolts 8 a bearing disc 9 (FIG. 2, 3) to which the upper end of a lower connecting rod section 10 is articulated, the lower end of which Bearing 18 engages a crankshaft 11.
  • the legs 7 have shoulders 12 which are surmounted by the bearing disk 9.
  • a pivot lever 14 with one end 14 ′′ acts in an articulated manner by means of a bolt 13, which is pivotally supported with its other end 14 ′ in a bearing 16 arranged eccentrically on a support axis 15.
  • the articulation point for the pivot lever 14 on the upper connecting rod section 5 is extended by the extension 27 beyond the common articulation point of both connecting rod sections 5 and 10.
  • the piston 2 is at top dead center.
  • the connecting rod bearing 6 on the piston side moves along the cylinder axis 22 and the bearing disc 9 moves on a movement path Form of a circular arc 17.
  • the bolt 13 moves on a further circular path 21.
  • the crankshaft 11 and with it the crankshaft-side bearing 18 rotate in the direction of the arrow 19.
  • the changes in position of the connecting rod sections 5, 10 and the pivot lever 14 at the bottom dead center of the piston 2 correspond to the dashed lines.
  • the corresponding position of the crankshaft bearing 18 is designated by the letters UT.
  • the 360 of a crankshaft revolution is plotted on the abscissa and the torque value determined for constant piston pressure force is plotted on the ordinate.
  • the dashed line 24 shows the torque curve in a conventional comparison motor. It can be seen that the maximum torque can be achieved with line 23 at approximately 45 crankshaft revolutions. 3, which shows the piston travel over the crankshaft revolution, the solid line 25 leaving the internal combustion engine according to the invention and the dashed line 26 for a conventional comparison engine (line 26) leaving its top dead center earlier and later Reached again, that is to say it remains much shorter in the region of its top dead center position than the piston 2 of the embodiment according to the invention (line 25).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Transmission Devices (AREA)
  • Harvester Elements (AREA)
EP87111871A 1987-05-08 1987-08-17 Kraft- oder Arbeitsmaschine, insbesondere Verbrennungskraftmaschine Expired - Lifetime EP0292603B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT87111871T ATE60881T1 (de) 1987-05-08 1987-08-17 Kraft- oder arbeitsmaschine, insbesondere verbrennungskraftmaschine.
PCT/EP1988/000367 WO1988008922A1 (en) 1987-05-08 1988-05-03 Driving or working engine, in particular an internal combustion engine
JP63504861A JP2693197B2 (ja) 1987-05-08 1988-05-03 動力又は作業機械、特に内燃機関

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873715391 DE3715391A1 (de) 1987-05-08 1987-05-08 Brennkraftmaschine oder sonstiger antrieb
DE3715391 1987-05-08

Publications (2)

Publication Number Publication Date
EP0292603A1 EP0292603A1 (de) 1988-11-30
EP0292603B1 true EP0292603B1 (de) 1991-02-13

Family

ID=6327123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111871A Expired - Lifetime EP0292603B1 (de) 1987-05-08 1987-08-17 Kraft- oder Arbeitsmaschine, insbesondere Verbrennungskraftmaschine

Country Status (6)

Country Link
US (1) US4957069A (ja)
EP (1) EP0292603B1 (ja)
JP (1) JP2693197B2 (ja)
AT (1) ATE60881T1 (ja)
DE (3) DE3715391A1 (ja)
WO (1) WO1988008922A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004034719A1 (de) * 2004-07-17 2006-02-09 PÖSCHEL, Günter Hochleistungs-Ein- und Zweitakt-Axialkolben Otto-Diesel- und Hybrid-Motorensystem
DE102004040841A1 (de) * 2004-08-23 2006-03-02 Helmut Obieglo Hubgetriebe, für insbesondere Verbrennungskraftmaschinen
DE102004045863A1 (de) * 2004-09-20 2006-03-23 Klaus Zimmer Hubgetriebe, für insbesondere Verbrennungskraftmaschinen
DE102005000913A1 (de) * 2005-01-06 2006-07-27 Helmut Obieglo Doppel-Hubgetriebe
DE102005002294A1 (de) * 2005-01-17 2006-07-27 Helmut Obieglo Energie-Verbrennungskraftmaschine

Families Citing this family (48)

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DE3864491D1 (de) * 1987-05-08 1991-10-02 Gerhard Mederer Kraft- oder arbeitsmaschine, insbesondere verbrennungskraftmaschine.
US5398652A (en) * 1991-02-04 1995-03-21 Jackson; Francis W. Knife-edge rocker bearing internal combustion engine
US5199318A (en) * 1991-11-22 1993-04-06 Tecumseh Products Company Device for restraining connecting rod on a crankshaft
US5163386A (en) * 1992-03-23 1992-11-17 Ford Motor Company Variable stroke/clearance volume engine
JPH06510580A (ja) * 1992-04-15 1994-11-24 メデラー　イェンス ピストン往復機関
JP3026410B2 (ja) * 1993-08-28 2000-03-27 南 昌煕 往復動機器のピストン
WO1995029329A1 (en) * 1994-04-23 1995-11-02 Ford Motor Company Limited Engine with variable compression ratio
EP0775256A1 (de) * 1994-05-19 1997-05-28 von Görtz & Finger Techn. Entwicklungs Ges.m.b.H. Sechs-takt-verbrennungsmotor mit variablem brennraum
US5595146A (en) * 1994-10-18 1997-01-21 Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft Combustion engine having a variable compression ratio
DE19504735A1 (de) * 1995-02-06 1996-08-08 Dieter Dipl Ing Prosser Kurbeltrieb zum Verändern des Verdichtungsverhältnis einer Brennkraftmaschine
EP0756076A1 (de) * 1995-07-17 1997-01-29 von Görtz & Finger Techn. Entwicklungs Ges.m.b.H. Verfahren zur Nutzung der Abwärme eines Verbrennungsmotors
US6109135A (en) * 1995-12-27 2000-08-29 Karsdon; Jeffrey Tetrahelical/curved bicycle crank arm/connecting rod for human/mechanical powered machines and the like
US7281527B1 (en) * 1996-07-17 2007-10-16 Bryant Clyde C Internal combustion engine and working cycle
US8215292B2 (en) 1996-07-17 2012-07-10 Bryant Clyde C Internal combustion engine and working cycle
DE19641586C1 (de) * 1996-08-29 1998-04-02 Lothar Holzapfel Kurbeltrieb zur Erzeugung einer birnenförmigen Pleuellager-Laufbahn einer Kolbenmaschine
DE19700939C2 (de) * 1997-01-14 2000-09-28 Herbert Weidle Kurbeltrieb für Kraftmaschinen
CN1085781C (zh) * 1997-10-30 2002-05-29 王长征 切点爆发式内燃机
JPH11218037A (ja) 1997-10-31 1999-08-10 Fev Motorentechnik Gmbh & Co Kg 調整可能な圧縮比を有するピストン内燃機関
DE19841381B4 (de) * 1997-10-31 2012-02-16 Fev Motorentechnik Gmbh Kolbenbrennkraftmaschine mit einstellbarem Verdichtungsverhältnis
RU2114315C1 (ru) * 1997-12-02 1998-06-27 Виталий Алексеевич Конюхов Адаптивный многотопливный двигатель внутреннего сгорания
RU2114314C1 (ru) * 1997-12-15 1998-06-27 Виталий Алексеевич Конюхов Способ регулирования мощности двигателя внутреннего сгорания и двигатель внутреннего сгорания
DE10003467A1 (de) * 2000-01-24 2001-10-31 Gerhard Mederer Gelenkpleuel-Kinematik
DE10108462B4 (de) * 2000-02-23 2013-12-05 Fev Gmbh Kolbenbrennkraftmaschine mit in V-Anordnung ausgerichteten Zylindern mit einstellbarem Verdichtungsverhältnis
JP4038959B2 (ja) * 2000-05-09 2008-01-30 日産自動車株式会社 内燃機関の可変圧縮比機構
AU2002213520A1 (en) * 2000-09-18 2002-03-26 Jeremy Jason Louw Smart piston engine
DE10051271B4 (de) 2000-10-16 2015-07-16 Fev Gmbh In ihrem Verdichtungsverhältnis einstellbare Kolbenbrennkraftmaschine mit integriertem Verstellaktuator
US6412453B1 (en) * 2000-10-18 2002-07-02 Ford Global Technologies, Inc. System and method for varying the compression ratio of an internal combustion engine
US6386153B1 (en) * 2000-10-18 2002-05-14 Ford Global Technologies, Inc. Variable compression ratio connecting rod locking mechanism II
US6499446B1 (en) * 2000-10-18 2002-12-31 Ford Global Technologies, Inc. Variable compression ratio connecting rod locking mechanism I
US6408804B1 (en) * 2000-10-18 2002-06-25 Ford Global Technologies, Inc. Apparatus for varying the compression ratio of an internal combustion engine
US6497203B1 (en) * 2000-10-18 2002-12-24 Ford Global Technologies, Inc. Hydraulic circuit for unlocking variable compression ratio connecting rod locking mechanisms
US6622669B1 (en) * 2000-10-18 2003-09-23 Ford Global Technologies, Llc Hydraulic circuit having accumulator for unlocking variable compression ratio connecting rod locking mechanisms-II
WO2002059468A1 (de) 2001-01-26 2002-08-01 Helmut Obieglo Verbrennungsmotor mit knickpleuel und verlängerter oberer totpunkt-zeit
JP3956629B2 (ja) 2001-02-28 2007-08-08 日産自動車株式会社 Ｖ型内燃機関のピストン駆動装置
US6394047B1 (en) * 2001-08-10 2002-05-28 Ford Global Technologies, Inc. Connecting rod for a variable compression engine
FR2828910B1 (fr) * 2001-08-21 2004-02-27 Edouard Patrick Mari Bonnefous Architecture cinematique pour moteur thermique quatre temps classique a pistons a combustion interne
JP2003343297A (ja) * 2002-03-20 2003-12-03 Honda Motor Co Ltd エンジン
DE102004034209A1 (de) * 2004-07-14 2006-02-02 Helmut Obieglo Quadropolares Getriebeelement
US20060082682A1 (en) * 2004-10-15 2006-04-20 Hoodman Corporation Camera LCD screen viewing device
CN100564829C (zh) * 2007-02-13 2009-12-02 天津大学 一种压比可调发动机
DE102008061326A1 (de) 2008-12-11 2010-06-17 Helmut Obieglo Hubkolbenmaschine, insbesondere Verbrennungskraftmaschine mit verlängerter oberer Totpunktzeit
CN102022189B (zh) * 2009-09-14 2013-01-02 中国农业大学 活塞式高效大扭矩输出发动机
DE102011017212A1 (de) * 2011-04-15 2012-10-18 Daimler Ag Kurbeltrieb für eine wenigstens ein variabel einstellbares Verdichtungsverhältnis aufweisende Hubkolbenmaschine
DE202012013303U1 (de) 2012-12-12 2016-02-22 Gerhard Noack Verbrennungsmotor mit übereinander liegendem Taumel-Kreuzgelenk-Antriebssystem in einem Motorgehäuse
JP2015010501A (ja) * 2013-06-27 2015-01-19 三菱自動車工業株式会社 内燃機関のピストン・クランク機構
DE102014002485A1 (de) 2014-02-12 2015-08-13 Manuela Lehmann Doppel-Taummelscheiben für Doppelpleuels der Vier- und Achtzylinder V Duplex-Räder-Verbrennungsmotoren
EP3704367B1 (en) * 2017-01-24 2024-10-23 Jazari Powertrain Motor Teknolojileri Anonim Sirketi Transmission assembly for an engine
US11125269B1 (en) * 2020-10-27 2021-09-21 Luis Alberto Velazquez Connecting rod assembly to modify the phases of an internal combustion engine

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004034719A1 (de) * 2004-07-17 2006-02-09 PÖSCHEL, Günter Hochleistungs-Ein- und Zweitakt-Axialkolben Otto-Diesel- und Hybrid-Motorensystem
DE102004034719B4 (de) * 2004-07-17 2008-02-21 PÖSCHEL, Günter Hochleistungs-Ein- und Zweitakt-Axialkolben Otto-Diesel- und Hybrid-Motorensystem
DE102004040841A1 (de) * 2004-08-23 2006-03-02 Helmut Obieglo Hubgetriebe, für insbesondere Verbrennungskraftmaschinen
DE102004045863A1 (de) * 2004-09-20 2006-03-23 Klaus Zimmer Hubgetriebe, für insbesondere Verbrennungskraftmaschinen
DE102005000913A1 (de) * 2005-01-06 2006-07-27 Helmut Obieglo Doppel-Hubgetriebe
DE102005002294A1 (de) * 2005-01-17 2006-07-27 Helmut Obieglo Energie-Verbrennungskraftmaschine

Also Published As

Publication number Publication date
EP0292603A1 (de) 1988-11-30
DE3715391C2 (ja) 1991-11-14
US4957069A (en) 1990-09-18
WO1988008922A1 (en) 1988-11-17
JP2693197B2 (ja) 1997-12-24
ATE60881T1 (de) 1991-02-15
DE3715391A1 (de) 1988-12-01
JPH02500379A (ja) 1990-02-08
DE8711149U1 (de) 1988-06-09
DE3768029D1 (de) 1991-03-21

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