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DE29713374U1 - Connecting rod for reciprocating piston engines - Google Patents

Connecting rod for reciprocating piston engines

Info

Publication number
DE29713374U1
DE29713374U1 DE29713374U DE29713374U DE29713374U1 DE 29713374 U1 DE29713374 U1 DE 29713374U1 DE 29713374 U DE29713374 U DE 29713374U DE 29713374 U DE29713374 U DE 29713374U DE 29713374 U1 DE29713374 U1 DE 29713374U1
Authority
DE
Germany
Prior art keywords
connecting rod
rod
reciprocating piston
approx
piston engines
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
DE29713374U
Other languages
German (de)
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.)
Ehly Matthias De
Original Assignee
EHLY MATTHIAS
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 EHLY MATTHIAS filed Critical EHLY MATTHIAS
Priority to DE29713374U priority Critical patent/DE29713374U1/en
Publication of DE29713374U1 publication Critical patent/DE29713374U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
    • 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
    • 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
    • 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
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Bes'chieSbiJhg : : .' : : .' M.EhIyBes'chieSbiJhg : : .' : : .' M.EhIy

Pleuelstange für Hubkolbenkraftmaschienen.Connecting rod for reciprocating piston engines.

Nach der Zündung des Kraftstoffgemischs steigt der Druck im Zylinder stei! an wahrend der Kolben sich im oberen Teil des Zylinders befindet und fällt beim sinken des Koibens sofort ab. An einem Indikatordiagrarrim ist dieser Vorgang zu erkennen. Bei den zur Zeit verwendeten starren Pleuelstangen wirkt die Kraft in dieser Phase in einer sehr ungünstigen Richtung auf die Kurbeiwelle, so daß ein großer Teii der Kraft auf das Wellenlager wirkt.After the fuel mixture has ignited, the pressure in the cylinder rises sharply while the piston is in the upper part of the cylinder and immediately drops as the piston sinks. This process can be seen on an indicator diagram. With the rigid connecting rods currently in use, the force acts on the crankshaft in a very unfavourable direction during this phase, so that a large part of the force acts on the shaft bearing.

Der Erfindung liegt die Aufgabe zugrunde eine Pleuelstange so zu Konstruieren,*.daß. die Kraftwirkrichtung wesentlich verbessert wird. Die vom Kolben ausgehende Kraft wird dadurch wesentlich besser genutzt und eine deutlich höhere Leistung bzw. eine Energieeinsparung erzielt.The invention is based on the task of constructing a connecting rod in such a way that the direction of the force is significantly improved. The force emitted by the piston is thus used much better and significantly higher performance and energy savings are achieved.

Erfindungsgemäß erfolgt die Lösung der Aufgabe durch eine geteilte Pleuelstange Teil 1 und 2 die schwenkbar miteinander verbunden sind, sowie einer zur führung der Stange angebrachter Führungshebel (3).According to the invention, the problem is solved by a split connecting rod part 1 and 2 which are pivotally connected to one another, as well as a guide lever (3) attached to guide the rod.

Durch die hohe Neigung der Stange (1) insbesondere in der Phase des hohen Druck- ■ anstiegs im Zylinder entsteht ein wesentlich günstiegerer Neigungswinkel zur Kurbelwelle gegenüber einer starren Stange. Ferner wird mit der Stange (1) eine Hebelwirkung erzeugt.The high inclination of the rod (1), particularly in the phase of the high pressure increase in the cylinder, results in a significantly more favorable angle of inclination to the crankshaft compared to a rigid rod. Furthermore, the rod (1) creates a lever effect.

Die Erfindung wird anhand der Zeichnungen 1 bis 7 erläutert.The invention is explained with reference to drawings 1 to 7.

Zeichn.1 zeigt: die Pleuelstange ist in der Position 1 (P1) dargestellt, wobei sich der Kolben (5) am oberen Totpunkt (OT) befindet.Drawing 1 shows: the connecting rod is shown in position 1 (P1), with the piston (5) at top dead center (TDC).

Nach dem Indikatordiagramm (Zeichnung 3. zeigt einen Ausschnitt des Diagramms) herscht bereits in dieser Phase ein hoher Druck im Zylinder. Während bei einer starren Pleuelstange die Kraft ausschließlich auf das Kurbeiwellen-Hauptlager wirkt, wird bei der geteilten Stange bereits ein Drehmoment erzeugt.According to the indicator diagram (drawing 3 shows a section of the diagram), there is already a high pressure in the cylinder in this phase. While with a rigid connecting rod the force acts exclusively on the crankshaft main bearing, with the split rod a torque is already generated.

In der Zeichn. 2 sind die Teile 1 und 2 nochmals ausführlich dargestellt.In drawing 2, parts 1 and 2 are shown again in detail.

In den Zeichnungen 4 bis 7 wurde die geteilte Pleuelstange (1) und (2) sowie eine starre herkömmliche Pleuelstange (4) vereinfacht durch Striche dargestellt.In drawings 4 to 7, the split connecting rod (1) and (2) as well as a rigid conventional connecting rod (4) are shown in a simplified manner by lines.

Zeichn. 4 zeigt: die geteilte und die starre Pleuelstange befinden sich in der Position 2 (P2) ca 2 mm vom OT entfernt.Drawing 4 shows: the split and the rigid connecting rod are in position 2 (P2) approx. 2 mm from TDC.

In dieser Phase ist nach dem Diagramm (Zeichn. 3) bereits ein sehr hoher Druck erkennbar. Während bei der starren Pleuelstange (4) nur ein geringes Drehmoment ( am Maß x2 gut zu erkennen) erzeugt wird, ist das Drehmoment mit der geteilten Stange ( Maß x1 ) wesentlich höher.In this phase, according to the diagram (Figure 3), a very high pressure can already be seen. While the rigid connecting rod (4) only generates a small torque (clearly visible from the dimension x2), the torque with the split rod (dimension x1) is significantly higher.

Zeichn. 5 zeigt: beide Pleuelstangen befinden sich in der Position 3 (P3) ca 5 mm vom OT entfernt.Drawing 5 shows: both connecting rods are in position 3 (P3) approx. 5 mm from TDC.

In dieser Phase hat der Druck seinen Höchststand erreicht. Mit der geteilten Pleuelstange wird ein ca 30% höheres Drehmoment gegenüber der starren Stange erzeugt.In this phase, the pressure has reached its highest level. The split connecting rod generates approximately 30% more torque than the rigid rod.

Zeichn. 6 zeigt: P4 ist ca 10 mm vom OT entfernt. Auch in dieser Phase herscht noch Hochdruck.Figure 6 shows: P4 is about 10 mm from TDC. High pressure still prevails in this phase.

Mit der geteilten Pleuelstange wird ein deutlich höheres Drehmoment erzeugt als mit der starren.The split connecting rod generates a significantly higher torque than the rigid one.

SfeechrefouiigSfeechrefouuiig

• ··

Zeichn. 7 zeigt: erst in der Niederdruckphase (P5 ca 24 mm vom OT entfernt) weist die geteilte Pleuelstange nur einen geringen Vorteil gegenüber einer starren Stange auf.Figure 7 shows: only in the low pressure phase (P5 approx. 24 mm from TDC) does the split connecting rod have only a slight advantage over a rigid rod.

Die genannten Angaben wurden mittels eines einfachen Modeiis nachgeprüft und bestätigt.The above information was verified and confirmed using a simple model.

Zur Realisierung der Erfindung jst gegebenenfalls eine geringe Änderung an dem Gegengewicht der Kurbelwelle (' Platz für Teii 2 und 3 schaffen) notwendig.To implement the invention, a small change to the counterweight of the crankshaft (' to make room for parts 2 and 3) may be necessary.

1. untere Pleuelstange1. lower connecting rod

2. obere Pleuelstange2. upper connecting rod

3. Führungshebel3. Guide lever

4. starre Pleuelstange4. rigid connecting rod

5. Kolben5. Piston

6. Bolzen6. Bolt

7. Bolzen7. Bolt

8. Kurbelwelle8. Crankshaft

Claims (3)

M.EhlyM.Ehly 1. Pleuelstange für Hubkolbenkraftmaschienen, zur übertragung der Kolbenkraft auf die Kurbelweile,1. Connecting rod for reciprocating piston engines, for transferring the piston force to the crankshaft, dadurch gekennzeichnet, ■*characterized by ■* daß die Pleuelstange aus zwei einzelnen Stangen besteht/einer unteren Stange (1) und einer oberen Stange (2) die durch einen Bolzen (6) und ein Gleitlager schwenkber miteinander verbunden sind.that the connecting rod consists of two individual rods/a lower rod (1) and an upper rod (2) which are pivotally connected to one another by a bolt (6) and a plain bearing. 2. Pleuelstange nach Anspruch &Iacgr;
dadurch gekennzeichnet,2. Connecting rod according to claim &Iacgr;
characterized, daß die untere Stange ca 70 mm vom Mittelpunkt des Kurbelwellenlager entfernt eine Biegung von ca 22° aufweistthat the lower rod has a bend of approx. 22° approx. 70 mm from the center of the crankshaft bearing 3. Pleuelstange nach Anspruch 1 und 2
dadurch gekennzeichnet,3. Connecting rod according to claim 1 and 2
characterized, daß die Konstruktion einen Führungshebel (3) aufweist der mit der einen Seite durch einen Bolzen (7) und ein Gleitlager an der unteren Stange (1) befestigt ist und in einem Abstand von ca 59 mm mit der anderen Seite am Gehäuse befestigt ist.that the construction has a guide lever (3) which is attached to the lower rod (1) on one side by a bolt (7) and a plain bearing and is attached to the housing on the other side at a distance of approx. 59 mm.
DE29713374U 1997-07-28 1997-07-28 Connecting rod for reciprocating piston engines Expired - Lifetime DE29713374U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29713374U DE29713374U1 (en) 1997-07-28 1997-07-28 Connecting rod for reciprocating piston engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29713374U DE29713374U1 (en) 1997-07-28 1997-07-28 Connecting rod for reciprocating piston engines

Publications (1)

Publication Number Publication Date
DE29713374U1 true DE29713374U1 (en) 1997-09-25

Family

ID=8043763

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29713374U Expired - Lifetime DE29713374U1 (en) 1997-07-28 1997-07-28 Connecting rod for reciprocating piston engines

Country Status (1)

Country Link
DE (1) DE29713374U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769949A1 (en) * 1997-10-17 1999-04-23 Guy Negre METHOD FOR CONTROLLING THE MOVEMENT OF A MACHINE PISTON, DEVICE FOR IMPLEMENTING AND BALANCING THE DEVICE
DE19939230A1 (en) * 1999-08-18 2001-03-01 Yakiv Cherkasky IC engine with stabilized and lightened pistons has piston connected to cylinder block via stabilizer mechanism with parallel levers
DE102004040841A1 (en) * 2004-08-23 2006-03-02 Helmut Obieglo Stroke transmission for internal combustion engine has lower piston rod and extension that are angled relative to each other
DE102008061326A1 (en) * 2008-12-11 2010-06-17 Helmut Obieglo Reciprocating piston engine, particularly internal combustion engine, has swiveling levers with two coupling positions near housing sided bearing position

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769949A1 (en) * 1997-10-17 1999-04-23 Guy Negre METHOD FOR CONTROLLING THE MOVEMENT OF A MACHINE PISTON, DEVICE FOR IMPLEMENTING AND BALANCING THE DEVICE
WO1999020881A1 (en) * 1997-10-17 1999-04-29 Guy Negre Method for controlling machine piston movement, implementing device and balancing of said device
DE19939230A1 (en) * 1999-08-18 2001-03-01 Yakiv Cherkasky IC engine with stabilized and lightened pistons has piston connected to cylinder block via stabilizer mechanism with parallel levers
DE19939230C2 (en) * 1999-08-18 2003-01-16 Yakiv Cherkasky Internal combustion engine with stabilized and lightened pistons
DE102004040841A1 (en) * 2004-08-23 2006-03-02 Helmut Obieglo Stroke transmission for internal combustion engine has lower piston rod and extension that are angled relative to each other
DE102008061326A1 (en) * 2008-12-11 2010-06-17 Helmut Obieglo Reciprocating piston engine, particularly internal combustion engine, has swiveling levers with two coupling positions near housing sided bearing position

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19971106

R081 Change of applicant/patentee

Owner name: EHLY, MATTHIAS, DE

Free format text: FORMER OWNER: EHLY, MATTHIAS, 41569 ROMMERSKIRCHEN, DE

Effective date: 19991026

R156 Lapse of ip right after 3 years

Effective date: 20010501