DE2935073A1 - Jointed connecting rod for IC engine - has both sections on same side of swinging lever which adjusts piston stroke - Google Patents

Jointed connecting rod for IC engine - has both sections on same side of swinging lever which adjusts piston stroke

Info

Publication number
DE2935073A1
DE2935073A1 DE19792935073 DE2935073A DE2935073A1 DE 2935073 A1 DE2935073 A1 DE 2935073A1 DE 19792935073 DE19792935073 DE 19792935073 DE 2935073 A DE2935073 A DE 2935073A DE 2935073 A1 DE2935073 A1 DE 2935073A1
Authority
DE
Germany
Prior art keywords
connecting rod
sections
pivot lever
lever
piston
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Withdrawn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
DE19792935073
Other languages
German (de)
Inventor
Jürgen 8431 Kemnath Scherf
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.)
SCHERF GEB KINDERMANN EVA
Original Assignee
SCHERF GEB KINDERMANN EVA
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 SCHERF GEB KINDERMANN EVA filed Critical SCHERF GEB KINDERMANN EVA
Priority to DE19792935073 priority Critical patent/DE2935073A1/en
Priority to EP80104573A priority patent/EP0025503A1/en
Priority to JP11852880A priority patent/JPS5650201A/en
Publication of DE2935073A1 publication Critical patent/DE2935073A1/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Withdrawn legal-status Critical Current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
    • 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

Abstract

A piston (2) reciprocates in a cylinder (1). The connecting rod has two sections (4,8) pivotted together (13). The upper section runs from the gudgeon pin to the pivot and the lower section from the pivot to the bearing (9) on the crankshaft. A swinging lever (6) is also hinged to the connecting rod at the point of pivot (13). Both connecting rod sections are on the same side of the lever. This reduces bending moments on the lever at the pivot section. The other end (11) of the lever about which it swings can be moved on a circular arc on the engine casing to adjust the piston stroke.

Description

EVASCHERF , 8431 KemnathEVASCHERF, 8431 Kemnath

HubkolbenmotorReciprocating engine

Die "-Erfindung betrifft einen Hubkolbenmotor mit einer durch zwei Pleuelstangenabschnitte gebildeten Pleuelstange, dessen einer Pleuelstangenabschnitt mit dem dem Kolbenbolzen abgewandten Ende und dessen anderer Pleuelstangenabschnitt mit dem dem "Kurbelwellenzapfen- abgewandten Ende an einem Schwenkhebel angelenkt sind, der mit dem den Pleuelstangenabschnitten abgewandten Ende im Abstand neben der Kolbenmittellinie am Motorgehäuse lagert..The "invention relates to a reciprocating engine with a formed by two connecting rod sections connecting rod, one connecting rod section with the Piston pin facing away from the end and its other connecting rod section with the "crankshaft journal facing away End are articulated on a pivot lever with the end facing away from the connecting rod sections at a distance next to the piston center line on the engine housing ..

Es ist bereits bekannt (Patentanmeldung P 27 34 715.5) die beiden Abschnitte einer Pleuelstange im Abstand nebeneinander an einem Schwenkhebel angreifen zu lassen« Abgesehen des hierdurch bedingten ungünstigen Platzbedarfs für It is already known (patent application P 27 34 715.5) to let the two sections of a connecting rod engage at a distance next to each other on a pivot lever «Apart from the unfavorable space requirement for

-/4- / 4

13001 1/D34313001 1 / D343

die beiden Lager der Pleuelstangenabschnitte am Schwenkhebel, führen die beiden Lager auch zu einem Biegemoment am Schwenkhebel und zu einer vergrößerten Seitenreibung des Kolbens im Zylinder.the two bearings of the connecting rod sections on the pivot lever, the two bearings also lead to a bending moment on the pivot lever and to increased lateral friction of the piston in the cylinder.

Die Erfindung hat bei einem Motor dieser Art die Freihaltung des Schwenkhebels von Biegemomenten im Bereich der Lager für die Pleuelstangenabschnitte zur Aufgabe.In the case of a motor of this type, the invention has to keep the pivot lever free of bending moments in the area the bearing for the connecting rod sections to the task.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die beiden Pleuelstangenabschnitte mit den einander zugewandten Enden achsgleich an einem Lager am Schwenkhebel angreifen und daß der Schwenkhebel mit seinem gehäuseseitigen Lager auf einem Kreisbogen verstellbar fest angeordnet ist. Bevorzugt sind die oberen und unteren Pleuelstangenabschnitte und der Schwenkhebel in ihren Längen im wesentlichen im Verhältnis 100:82:168 ausgeführt. Durch die Zusammenlegung der Lager der beiden Pleuelstangenabschnitte am Schwenkhebel kommen Momentbildungen in Fortfall und es wird eine Verringerung des Druckes des oberen Pleuelstangenabschnitts 2ur Verminderung der Seitenreibung des Kolbens erreicht. Darüber hinaus führen die Stsllbewegungen des Schwenkhebels zu beliebig wählbaren Vergrößerungen des Kolbenhubs nach unten und ermöglichen die Herbeiführung einerThis object is achieved according to the invention in that the two connecting rod sections with the mutually facing Attack ends coaxially on a bearing on the pivot lever and that the pivot lever with its housing-side Bearing is fixedly arranged adjustable on an arc of a circle. The upper and lower connecting rod sections are preferred and the length of the pivot lever is essentially in a ratio of 100: 82: 168. By the merging of the bearings of the two connecting rod sections on the swivel lever, moment formations come to an end and there a reduction in the pressure of the upper connecting rod section 2 to reduce the lateral friction of the piston achieved. In addition, the movements of the Swivel levers to arbitrarily selectable enlargements of the piston stroke down and enable the induction of a

-/5 130011/0343- / 5 130011/0343

größeren Verdichtung, was einen Ladereffekt mit DrehmomentverStärkung ergibt.greater compression, resulting in a supercharger effect with increased torque results.

Die Erfindung ist in der Zeichnung anhand- eines Ausführungsbeispiels verdeutlicht. Es zeigen; The invention is illustrated in the drawing using an exemplary embodiment. Show it;

Fig. 1 einen Motor im Schnitt, schematisch und Fig. 2 : einen Teilschnitt,einea Motors, schematisch« ~ ■1 shows a motor in section, schematically, and FIG. 2: a partial section, a motor, schematically

Mit 1 ist ein Zylinder und mit 2 ein darin beweglicher Kolben bezeichnet. Am Kolben 2 greift ein oberer Pleuel» stangenäbschnitt 4 und am Kurbelzapfen 9 der Kurbelwelle 10 ein unterer Pleuelstangenabschnitt 8 an. Die beiden Pleuelstangenabschnitte 4 und 8 sind in einem Lager 13 eines Schwenkhebels 6 achsgleich gelagert,, Der Schwenkhebel 6 ist mittels eines weiteren Lagers 11 am Motorgehäuse abgestützt, wobei das Lager 11 auf einen Kreisbogen verstellbar ausgebildet ist. Durch die gemeinsame Angriffsstelle der Pleuelstangenabschnitte 4, 8 bleibt der Schwenkhebel frei von Dreh- und Biegemomenten, während durch Verschwenken des Lagers 11 ~das._Lager 13 "bei Kolbenhüben auf verschieden geneigten Kreisbahnen bewegbar isty um so zu Hubveränderungen des Kolbens 2 nach unten zu1 with a cylinder and 2 with a piston movable therein. An upper connecting rod engages piston 2 » rod section 4 and a lower connecting rod section 8 on the crank pin 9 of the crankshaft 10. The two Connecting rod sections 4 and 8 are mounted coaxially in a bearing 13 of a pivot lever 6, the pivot lever 6 is supported on the motor housing by means of a further bearing 11, the bearing 11 on an arc of a circle is designed to be adjustable. Due to the common point of attack of the connecting rod sections 4, 8 remains the pivot lever free of torsional and bending moments, while by pivoting the bearing 11 ~ das._Lager 13 "is movable on different inclined circular paths during piston strokes so as to stroke changes of the piston 2 downwards

-/6- / 6

13001 1/T)TA 313001 1 / T) TA 3

führen. Diese Hubveränderungen lassen Verdichtungsänderungen zu und erbringen dabei einen Ladereffekt mit Drehmomentverstärkung ohne daß hierzu Zusatzeinrichtungen, wie Gebläse od.dgl. notwendig sind.to lead. These changes in stroke allow changes in compression and thereby produce a supercharger effect with torque amplification without this additional equipment, such as blower or the like. are necessary.

130011/0343130011/0343

Claims (2)

EVA SCHERF1 8431 KemnathEVA SCHERF 1 8431 Kemnath PatentansprücheClaims ( 1. Hubkolbenmotor mit einer durch zwei Pleuelstangenabschnitte gebildeten Pleuelstange, dessen einer Pleuelstangenabschnitt mit dem dem Kolbenbolzen abgewandten Ende und dessen anderer Pleuelstangenabschnitt mit dem dem Kurbelwellenzapfen abgewandten Ende an einem Schwenkhebel angelenkt sind, der mit dem den Pleuelstangenabschnitten abgewandten Ende im Abstand neben der Kolbenmittellinie am Motorgehäuse lagert, dadurch gekennzeichnet, daß die beiden Pleuelstangenabschnitte (4, 8) mit den einander zugewandten Enden achsgleich an einem Lager (13) am Schwenkhebel (6) angreifen und daß der Schwenkhebel (6) mit seinem den Pleuelstangenabschnitten (4, 8) abgewandten Lager (11) auf einem Kreisbogen verstellbar fest angeordnet ist. ( 1st reciprocating piston engine with a connecting rod formed by two connecting rod sections, one connecting rod section of which with the end facing away from the piston pin and the other connecting rod section with the end facing away from the crankshaft journal are hinged to a pivot lever, which with the end facing away from the connecting rod sections at a distance next to the piston center line Motor housing is mounted, characterized in that the two connecting rod sections (4, 8) engage with the mutually facing ends coaxially on a bearing (13) on the pivot lever (6) and that the pivot lever (6) with its facing away from the connecting rod sections (4, 8) Bearing (11) is fixedly adjustable on an arc of a circle. -/2- / 2 13 0011/034313 0011/0343 2. Hubkolbenmotor nach Anspruch 1, dadurch gekennzeichnet, daß die Längen des oberen und unteren Pleuelstangenabschnitts sowie des Schwenkhebels im Verhältnis 100:82:168 ausgebildet sind.2. Reciprocating engine according to claim 1, characterized in that the lengths of the upper and lower connecting rod section as well as the pivot lever in the ratio 100: 82: 168 are formed. -/3 130011/0343 - / 3 130011/0343
DE19792935073 1979-08-30 1979-08-30 Jointed connecting rod for IC engine - has both sections on same side of swinging lever which adjusts piston stroke Withdrawn DE2935073A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19792935073 DE2935073A1 (en) 1979-08-30 1979-08-30 Jointed connecting rod for IC engine - has both sections on same side of swinging lever which adjusts piston stroke
EP80104573A EP0025503A1 (en) 1979-08-30 1980-08-02 Reciprocating piston engine
JP11852880A JPS5650201A (en) 1979-08-30 1980-08-29 Reciprocating piston engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792935073 DE2935073A1 (en) 1979-08-30 1979-08-30 Jointed connecting rod for IC engine - has both sections on same side of swinging lever which adjusts piston stroke

Publications (1)

Publication Number Publication Date
DE2935073A1 true DE2935073A1 (en) 1981-03-12

Family

ID=6079644

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792935073 Withdrawn DE2935073A1 (en) 1979-08-30 1979-08-30 Jointed connecting rod for IC engine - has both sections on same side of swinging lever which adjusts piston stroke

Country Status (2)

Country Link
JP (1) JPS5650201A (en)
DE (1) DE2935073A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504735A1 (en) * 1995-02-06 1996-08-08 Dieter Dipl Ing Prosser Crank drive mechanism changing IC engine compression ratio
US5595146A (en) * 1994-10-18 1997-01-21 Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft Combustion engine having a variable compression ratio
US6247430B1 (en) 1997-10-31 2001-06-19 Fev Motorentechnik Gmbh & Co. Kommandgesellschaft Compression ratio setting device for an internal-combustion engine
EP1199452A1 (en) 2000-10-16 2002-04-24 FEV Motorentechnik GmbH Internal combustion engine with variable compression ratio and integrated setting actuator
EP1154134A3 (en) * 2000-05-09 2002-11-20 Nissan Motor Company, Limited Variable compression ratio mechanism for reciprocating internal combustion engine
DE19841381B4 (en) * 1997-10-31 2012-02-16 Fev Motorentechnik Gmbh Piston engine with adjustable compression ratio
EP2484907A1 (en) * 2011-02-08 2012-08-08 NEUMAN & ESSER Maschinenfabrik GmbH & Co. KG Volume flow control
DE10108462B4 (en) * 2000-02-23 2013-12-05 Fev Gmbh Piston engine with V-aligned cylinders with adjustable compression ratio

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113958405A (en) * 2021-10-28 2022-01-21 谢占鳌 High-efficiency fuel-saving internal combustion engine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5595146A (en) * 1994-10-18 1997-01-21 Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft Combustion engine having a variable compression ratio
DE19504735A1 (en) * 1995-02-06 1996-08-08 Dieter Dipl Ing Prosser Crank drive mechanism changing IC engine compression ratio
US6247430B1 (en) 1997-10-31 2001-06-19 Fev Motorentechnik Gmbh & Co. Kommandgesellschaft Compression ratio setting device for an internal-combustion engine
DE19841381B4 (en) * 1997-10-31 2012-02-16 Fev Motorentechnik Gmbh Piston engine with adjustable compression ratio
DE10108462B4 (en) * 2000-02-23 2013-12-05 Fev Gmbh Piston engine with V-aligned cylinders with adjustable compression ratio
EP1154134A3 (en) * 2000-05-09 2002-11-20 Nissan Motor Company, Limited Variable compression ratio mechanism for reciprocating internal combustion engine
US6546900B2 (en) 2000-05-09 2003-04-15 Nissan Motor Co., Ltd. Variable compression ratio mechanism for reciprocating internal combustion engine
EP1199452A1 (en) 2000-10-16 2002-04-24 FEV Motorentechnik GmbH Internal combustion engine with variable compression ratio and integrated setting actuator
US6588384B2 (en) 2000-10-16 2003-07-08 Fev Motorentechnik Gmbh Apparatus for varying the compression ratio of an internal-combustion engine
DE10051271B4 (en) * 2000-10-16 2015-07-16 Fev Gmbh In their compression ratio adjustable piston internal combustion engine with integrated Verstellaktuator
EP2484907A1 (en) * 2011-02-08 2012-08-08 NEUMAN & ESSER Maschinenfabrik GmbH & Co. KG Volume flow control
DE102011003795A1 (en) * 2011-02-08 2012-08-09 Neuman & Esser Maschinenfabrik Gmbh & Co. Kg Flow control

Also Published As

Publication number Publication date
JPS5650201A (en) 1981-05-07

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8139 Disposal/non-payment of the annual fee