EP0589892A1 - Moteur a piston alternatif - Google Patents

Moteur a piston alternatif

Info

Publication number
EP0589892A1
EP0589892A1 EP92908384A EP92908384A EP0589892A1 EP 0589892 A1 EP0589892 A1 EP 0589892A1 EP 92908384 A EP92908384 A EP 92908384A EP 92908384 A EP92908384 A EP 92908384A EP 0589892 A1 EP0589892 A1 EP 0589892A1
Authority
EP
European Patent Office
Prior art keywords
connecting rod
sleeve body
rod section
lower connecting
fork
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Withdrawn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
EP92908384A
Other languages
German (de)
English (en)
Inventor
Jens 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
Publication of EP0589892A1 publication Critical patent/EP0589892A1/fr
Withdrawn legal-status Critical Current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
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
    • 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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • 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
    • 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

Definitions

  • the invention relates to a reciprocating piston engine with at least one piston which is movable in a cylinder and which is connected to the crankshaft via an upper and lower connecting rod section which are connected to one another by a common joint part, and in which the upper one
  • the connecting rod section has an extension that extends beyond the joint point and pivotally engages a pivot lever on the extension, which is supported on the engine block with its end facing away from the joint point.
  • the upper connecting rod section carries a bearing disc between the fork-shaped ends for the lower connecting rod section and the pivot lever.
  • the upper connecting rod section is designed with fork-shaped ends, that the fork-shaped ends of the upper connecting rod section firmly support a sleeve body which extends in sections on the inside between the ends of the upper connecting rod section and on the outside of the ends, that the lower connecting rod section is articulated on the inside and outside sections of the sleeve body and that the sleeve body or the like by means of a bushing.
  • the pivot lever is mounted symmetrically in the center at a distance from the fork-shaped ends and eccentrically for mounting the upper and lower connecting rod sections. In this way, large contact surfaces are created by the sleeve body on the upper connecting rod section and between the sleeve body and the lower connecting rod section
  • the fork-shaped ends of the upper connecting rod section are passed through cuts in the lower connecting rod section and are immersed in slots, in the sleeve body, and that the upper connecting rod section and the sleeve body are provided in holes in the sleeve body and the fork-shaped one End introduced connecting elements, e.g. Pens or the like are firmly connected to each other. Appropriately find three pens or the like. Application that lead to a secure connection. It is also conceivable that the upper connecting rod is additionally, e.g. supported by means of flat surfaces on the bottom of the slits in the sleeve body.
  • the connecting rod sections and the sleeve body are provided any material, for example made of an iron material, and that, in order to improve the sliding property of the sleeve body, a bearing sleeve for the lower connecting rod section is made of a non-ferrous metal, for example bronze, on the circumferential surface.
  • the connecting rod sections and the sleeve body can preferably also be formed from a light metal material, for example aluminum, whereby the sleeve body is suitable for immediate mounting of the lower connecting rod section.
  • the use of light metal materials thus gives the advantage that bearing sleeves, which are necessary when using iron materials, can be omitted, which results in an advantageous weight saving, which allows higher speeds for greater performance. In addition, the manufacturing effort is reduced.
  • a positioning eccentric guided in or on the engine block can also be used.
  • the arrangement of an actuating eccentric permits the adjustment of various articulation angles between the connecting rod sections in order to change the characteristics of the reciprocating piston engine. It is essential for the engine to create wide contact surfaces for safe and even force distributions over the length of the joint and to avoid disruptive bends in the joint.
  • the upper connecting rod section with a web-shaped end facing away from the piston is fixed in the center of a sleeve body, for example by pins, and that the sections extending to both sides of the sleeve body define the lower connecting rod section store and the sleeve body by means of an eccentrically arranged in this and on both sides over the sleeve or the like led out body.
  • the pivot lever is preferably fork-shaped at the end facing the sleeve body.
  • FIG. 3 shows an upper connecting rod section in section along the line III-III of FIG. 2
  • FIG. 4 shows a sleeve body connectable to the upper connecting rod section
  • FIG. 5 shows a longitudinal section of a sleeve body
  • FIG. 6 shows a lower connecting rod section in section
  • FIG. 7 shows a connecting rod section according to FIG. 6 in side view
  • FIG. 8 shows a pivoting lever in side view
  • Fig. 9 shows a section along the line IX-IX of Fig. 8
  • Fig. 10 shows a bearing bush for the pivot lever in
  • Fig. 11 is a bearing bush in section along the line XI-XI of Fig. 10,
  • 1 denotes a cylinder of a reciprocating piston engine, which slidably receives a piston 2.
  • the cylinder 1 is closed at the upper end in a manner known per se by a cylinder head part 3.
  • the device for the supply of fuel and air or of fuel mixtures and the removal of combustion gases are not shown for reasons of clarity.
  • the piston 2 receives a piston pin on which an upper connecting rod section 5 with its bearing 6 (FIG. 2) engages in a pivotable manner.
  • the upper connecting rod section 5 is fork-shaped in the lower region and the legs 7 with their free widened ends 8 are firmly connected by means of pins 9 to a sleeve body 10 (FIGS. 4, 5).
  • the pins 9 are prepared for this purpose
  • the sleeve body 10 is provided with slots 11 into which the free ends 8 of the connecting rod section 5 engage.
  • a lower connecting rod section 12 (FIGS. 6, 7) is mounted on the sleeve body 10 with the interposition of a bearing sleeve 13 made of a suitable material.
  • the lower connecting rod section 12 engages the sleeve body 10 such that it can pivot.
  • the lower connecting rod section 12 furthermore has slots 14 through which the upper connecting rod section 5 with the ends 8 engages freely. 1, the sleeve body 10 receives in a cylindrical recess 15 a bearing pin 16 (FIGS. 10, 11) which supports one end 17 'of a pivot lever 17 (FIGS.
  • the pivot lever 17 reaches through with the end 17 ' Recess 18 in the sleeve body 10 and lower connecting rod section 12, while the end 17 ′′ of the pivot lever 17 facing away from the sleeve body 10, as shown in FIG. 16, is mounted at 19 on a positioning eccentric 20.
  • the lower connecting rod section 12 engages in a known manner with its end facing away from the piston 2 against a crankshaft 21.
  • the piston 2 is at the top dead center "TDC".
  • TDC top dead center
  • the connecting rod bearing on the piston side moves along the cylinder axis 22 and the sleeve body 10 on a movement path in the form of a circular arc 23.
  • the bearing pin 16 moves on a further circular path 24.
  • the crankshaft 21 rotates and with it the crankshaft side Bearing 25 in the direction of arrow 26.
  • the bearing changes of connecting rod sections 5 and 12 and pivoting lever 17 at bottom dead center "UT" of piston 2 correspond to the dashed lines. It can be seen that when the piston 2 moves downward from the top dead center, the movement path 23 for the sleeve body 10 approaches the cylinder axis 27 and cuts it in the further course when the piston 2 moves downward.
  • the upper connecting rod section 5 engages with a web 33 on a modified sleeve body 10 and is fixed to this by means of pins 9.
  • the sleeve body 10 also serves for storage in this embodiment of the lower connecting rod section 12, in particular with the interposition of a bearing sleeve 13.
  • the sleeve body 10 receives a bearing pin 16 for a pivoting lever 34 which is advanced over the two front ends of the sleeve body 10 and ends at these ends
  • Swivel lever 34 supports.
  • the pivot lever 34 is preferably fork-shaped at its end facing the bearing pin 16.
  • Pins 35 serve to secure the fork-shaped ends 34 ', 34' 'of the pivoting lever 34 on the bearing pin 16.

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)

Abstract

Un moteur alternatif comporte au moins un piston se déplaçant dans un cylindre et relié au vilebrequin par des sections de bielle supérieure et inférieure reliées par un point d'articulation commun. La section de bielle supérieure présente, au-delà du point d'articulation, un prolongement en prise avec un levier pivotant dont l'extrémité opposée au point d'articulation s'appuie sur le bloc-moteur. Pour empêcher des flexions au voisinage du point d'articulation des sections de bielle, la section de bielle supérieure (5) est munie d'extrémités formant une fourche (7) qui supportent fermement un corps de douille (10) lequel s'étend intérieurement, par section, entre les extrémités (7) de la section de bielle supérieure (5) et extérieurement entre les extrémités (7), tandis que la section de bielle inférieure (12) est articulée aux sections intérieures et extérieures du corps de douille (10), le corps de douille (10) supportant le levier pivotant (17), au moyen d'une douille (16) ou d'un élément similaire, centralement et symétriquement, entre les extrémités formant une fourche (7) et excentriquement par rapport au logement des sections de bielle supérieure et inférieure (5, 12).
EP92908384A 1992-04-15 1992-04-15 Moteur a piston alternatif Withdrawn EP0589892A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1992/000846 WO1993021421A1 (fr) 1992-04-15 1992-04-15 Moteur a piston alternatif

Publications (1)

Publication Number Publication Date
EP0589892A1 true EP0589892A1 (fr) 1994-04-06

Family

ID=8165648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92908384A Withdrawn EP0589892A1 (fr) 1992-04-15 1992-04-15 Moteur a piston alternatif

Country Status (7)

Country Link
EP (1) EP0589892A1 (fr)
JP (1) JPH06510580A (fr)
KR (1) KR940701491A (fr)
AU (1) AU1553092A (fr)
BR (1) BR9206154A (fr)
CZ (1) CZ275093A3 (fr)
WO (2) WO1993021421A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10003467A1 (de) * 2000-01-24 2001-10-31 Gerhard Mederer Gelenkpleuel-Kinematik
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089235A (en) * 1976-06-07 1978-05-16 Mcwhorter Edward Milton Intra-articulate connecting rod for small engines
FR2600727B3 (fr) * 1986-06-26 1988-08-26 Berthoud Sa Embiellage destine au deplacement alternatif d'un piston dans un cylindre.
DE3715391A1 (de) * 1987-05-08 1988-12-01 Gerhard Mederer Brennkraftmaschine oder sonstiger antrieb

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9321421A1 *

Also Published As

Publication number Publication date
BR9206154A (pt) 1995-11-07
JPH06510580A (ja) 1994-11-24
CZ275093A3 (en) 1994-05-18
WO1993021421A1 (fr) 1993-10-28
KR940701491A (ko) 1994-05-28
WO1993021422A1 (fr) 1993-10-28
AU1553092A (en) 1993-11-18

Similar Documents

Publication Publication Date Title
EP0292603B1 (fr) Machines à conversion d'énergie, en particulier un moteur à combustion interne
DE3833540C2 (fr)
DE3022188C2 (fr)
WO2001092700A1 (fr) Dispositif destine a modifier la compression d'un cylindre d'un moteur alternatif a combustion interne
DE3417814C2 (fr)
WO2007039414A1 (fr) Culbuteur asymetrique d'une commande de soupapes d'un moteur a combustion interne
DE69603514T2 (de) Aufhängungsvorrichtung für das Hinterrad eines Zweirads
DE19732600A1 (de) Bauteilspanner
DE10155825A1 (de) Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
DE69923139T2 (de) Schlepphebelanordnung für gleichzeitige Ventil-Hub und Winkelsteuerung in einer Brennkraftmaschine
DE2734715A1 (de) Hubkolbenmotor
DE102004051422A1 (de) Schaltbarer Schlepphebel
DE10026634C2 (de) Vorrichtung zum Verändern der Verdichtung eines Zylinders einer Hubkolbenbrennkraftmaschine
EP0589892A1 (fr) Moteur a piston alternatif
DE10034025B4 (de) Verstelleinrichtung
EP1022443B1 (fr) Dispositif de commande variable pour soupape de moteur a combustion interne
DE102006013566A1 (de) Schaltbarer Schlepphebel
DE4311865A1 (de) Hubkolbenmotor
EP1350928B1 (fr) Appareil pour actionnement variable d'une soupape d'un moteur à combustion interne
DE9205247U1 (de) Hubkolbenmotor
EP1165976B1 (fr) Moteur a combustion interne
DE1105659B (de) Ventilsteuerung fuer Brennkraft-maschinen
EP1446562A1 (fr) Levier d'entrainement d'un mecanisme de distribution d'un moteur a combustion interne
DE69313384T2 (de) Angetriebener Arbeitsarm
DE4201257A1 (de) Regelbare fluegelzellenpumpe mit druckstueck

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

17P Request for examination filed

Effective date: 19940111

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DK ES FR GB GR IT LI NL SE

17Q First examination report despatched

Effective date: 19950330

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: 19950810