EP0429918B1 - Cadre pour le guidage des manetons pour un mécanisme de glissement d'un moteur à combustion interne - Google Patents
Cadre pour le guidage des manetons pour un mécanisme de glissement d'un moteur à combustion interne Download PDFInfo
- Publication number
- EP0429918B1 EP0429918B1 EP90121458A EP90121458A EP0429918B1 EP 0429918 B1 EP0429918 B1 EP 0429918B1 EP 90121458 A EP90121458 A EP 90121458A EP 90121458 A EP90121458 A EP 90121458A EP 0429918 B1 EP0429918 B1 EP 0429918B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slide
- crank
- members
- frame according
- drive frame
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 11
- 238000009826 distribution Methods 0.000 claims description 16
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000005524 ceramic coating Methods 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- F01B9/023—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft of Bourke-type or Scotch yoke
Definitions
- the invention relates to a crank loop frame for a crank loop drive of an internal combustion engine for converting a reciprocating movement into a rotary movement, of the type specified in the preamble of claim 1.
- An internal combustion engine of the generic type is known from DE-OS 34 33 510.
- the cause could be found to be a deflection of the slideway frame webs, which even led to tearing of the lubricating film and cavitation between the slideways of the crank loop frame and the sliding surfaces of the sliding block, with the result of blocking and possibly destruction of the crank loop drive.
- the object of the invention is to provide a crank loop frame of the type mentioned, which withstands the alternating loads of the internal combustion engine, so that blocking or destroying the crank loop drive can be avoided.
- the invention leaves the prescribed way to solve the problem by increasing the stability of the slideway frame webs and finds the solution surprisingly in a homogeneous rapid distribution of heat in the vicinity of the slideway frame webs.
- This is achieved by the arrangement of suitably shaped webs both above and below the slideway and in particular by the use of frame webs which are H-shaped in cross-section, in which the center of gravity of the surface lies just above the slideway, so that the heat flows away or the homogenous one Distribution of heat both above and below the slideways almost symmetrically distributed heat-absorbing webs are available.
- These are not cooling fins or similar elements for dissipating heat, but webs of sufficient heat capacity for a homogeneous distribution of the heat above and below the slideway frame webs.
- This homogeneous heat distribution ensures a straight-line expansion of the slideway frame webs, so that the slideways remain flat and, in particular, deflection of the slideways is avoided.
- the slideway frame webs For the homogeneous distribution of the heat, it is not absolutely necessary to design the slideway frame webs symmetrically in cross section. It may be appropriate e.g. B. the sliding block-side H-leg or the piston rod-side H-leg higher and / or the legs in the region of the piston rods higher than in the region of the end faces of the frame and / or to create additional masses with additional heat capacity in the region of the end faces, also in to achieve a homogeneous and rapid distribution of the heat flow in these areas.
- a coating which is poorly conductive to heat can be provided on the slideway surface e.g. B. from Kermaik and / or a plate made of heat poorly conductive material z. B. made of ceramic so that only part of the heat generated flows into the frame.
- the different thermal conductivity and / or heat capacity can, for. B. with a ceramic coating or a ceramic plate can be ensured that the plate of layers z.
- ceramic foils of different thermal conductivity and / or heat capacity and / or in the longitudinal extent of platelets of different thermal conductivity and / or heat capacity is built up.
- Another measure according to the invention to support the Effect of the means according to the invention for acting on the heat distribution in the crank loop frame provides for the tearing off of the lubricating film between slide block and slide track surfaces and the associated breakage and temperature peaks to be avoided, namely by the arrangement of recesses or so-called fittings in the slide track surfaces and / or in the sliding block surfaces facing the slideways, as are generally known between flat sliding elements for the same purpose.
- crank loop frame With the invention it is thus possible not only to ensure the dimensional stability of the crank loop frame.
- the invention also allows the crank loop frame to be of a lightweight construction that was previously not possible.
- a crank loop frame 1 for example for a reciprocating piston internal combustion engine with crank loop drive described in DE-OS 34 33 510, generally has two opposing slideway frame webs 2, 3 and two end webs 4, 5, so that a frame interior 6 is formed.
- the piston rods 7 of two piston cylinder units of the internal combustion engine, not shown, arranged opposite one another are arranged perpendicularly thereto.
- the sliding block, not shown, of the crank loop drive is seated in a manner known per se in the interior 6 of the crank loop frame 1. It is essential that the slideway frame webs 2, 3 are H-shaped in cross section (FIG.
- the slideway web 8 is arranged centrally between the leg webs 9, ie the height of the leg webs 9 above and below the slideway web 8 is the same. However, this symmetry - if required by the heat flow and / or the heat capacity and / or the heat distribution - can be different.
- the slideway webs 8 form the opposing, flat slideways 10 in the frame interior for the sliding block.
- crank loop frame 1 shown is in two parts, namely divided longitudinally, with one end web half 11 being provided on the end of the slideway frame webs 2, 3 and the end faces 12 of the end web halves 11 being set against one another in the division plane.
- the slideway frame webs 2, 3 can be assembled by welding, preferably by electron beam welding (FIG. 4). It is also possible to manufacture the crank loop frame 1 in one piece.
- the crank loop frame 1 is expediently made in two parts.
- An advantageous combination for the purposes of the invention is shown in FIGS. 1, 2. It is carried out by means of two rectangular metallic tension band rings 13.
- a U-shaped tension band bearing web 15 with flat outer surfaces 14, which extends in the longitudinal direction of the slideway frame webs 2, 3 is arranged on the front side of each end web half 11.
- the tension band bearing webs 15 result in a tension band frame which is flat on the outside and on which the tension band is press-fitted.
- spacer bolts 16 are arranged between the U-legs of adjacent tensioning band bearing webs 15 in the parting plane, which have a support disk 17 at their ends and expediently a bearing disk 18 of smaller diameter adjoining on the outside.
- semicircular recesses 19 are made in the free end edges 20 of the tension band bearing webs 15.
- the sliding block sits like in a cage, because the leg webs 9 facing the interior overlap the sliding block laterally.
- the transition from the leg webs 9 on the interior side to the half of the forehead web can be made 11 be rounded, so that an oval hole 20a is formed.
- crank loop frame 1 is open at the end, which favors the heat flow and heat distribution and also supports the lightweight construction.
- the tension band 13 which is intended to absorb the thermal expansions and to ensure the securing of the bolts, has, in particular, the task of bridging the gap between the slideway frame webs 2, 3 in the division plane and ensuring rapid heat conduction and distribution.
- the pin 16 also contributes to heat conduction and distribution.
- a further advantageous joining of the slideway frame webs 2, 3 takes place according to the embodiment shown in FIG. 3 by means of expansion screws 21.
- a hole 22 is provided at the end in each slideway web 8, which is penetrated by the screw shaft of the expansion screw 21, the screw head 21a being on the outside of the frame supports the surface of the slideway web 8 and the respective end-side external thread 23 of two oppositely arranged expansion screws 21 engages in a corresponding internal thread of a cuboid connecting block 24, which bridges the division plane.
- the connecting block 24 expediently rests on the inner surfaces of the end web halves 11 (FIG.
- edges of semicircular recesses 19a arranged in the end web halves 11 being located in an annular groove 25 of a pin 26 arranged on the outside on the block 24, so that in this embodiment as well mutual displacement of the slideway webs 2,3 is prevented in the division plane.
- leg webs 9 on the interior side it is advantageous on the inner surface of the leg webs 9 on the interior side to extend in the longitudinal direction, raised, flat guide or support webs 27 for the sliding block To be provided so that the sliding block is guided laterally and the heat transfer is also possible laterally, which favors the rapid heat conduction and distribution (Fig. 4.5).
- Fig. 6a / b shows that according to the invention in the sliding surfaces 10 of the slideways of the slideway webs 8 and preferably also in the sliding surfaces 28 of the guide webs 27 pits or depressions 29 are introduced, which serve as an oil reservoir and prevent the lubricating film between the Sliding surfaces 10, 28 and the corresponding sliding stone surfaces tears off.
- the shape, number and arrangement of the fittings 29 are chosen on the basis of empirical determinations. Due to the fittings or by avoiding the film tear, heat peaks are excluded, which supports the rapid heat conduction and distribution.
- cross-sectionally U-shaped sliding plates 30 made of a special metal or e.g. made of ceramic, which can be arranged with a contact surface 34 on the slideways 10.
- They In their interior they have a sliding base surface 31 which extends parallel to the sliding surfaces 10 and supporting webs 27a which are bent at right angles to the interior 6.
- the supporting webs 27a either form sliding surfaces for the sliding block or are used for the form-fitting mounting of the sliding plates 30 below the supporting webs 27.
- the fastening of the sliding plates 30 to the slideway frame webs 2, 3 can be arbitrary.
- the slideway webs 8 are gripped at the end with a bracket 32 or the front web halves 11 are gripped behind with angled tabs 33.
- the slide plates 30 particularly support the homogeneous heat flow in the frame 1, but can also expediently serve to hinder the heat flow.
- the construction of the sliding plates 30 can differ zonally in the longitudinal direction, so that the heat flow is influenced in a targeted manner.
- the sliding plates 30 can, however, also be constructed in layers perpendicular to their longitudinal extension in order to be able to influence the heat flow in a targeted manner in this direction as well.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Claims (25)
caractérisé en ce que
aussi bien au-dessus qu'en dessous de la bande (10) de glissement des barrettes (2, 3) du cadre (1) pour le guidage de manetons, sont disposées des barrettes (9) de capacité calorifique suffisante en vue d'une répartition homogène de la chaleur et que les barrettes (2, 3) du cadre pour le guidage de manetons sont construites avec une section en forme de H et présentent une barrette (8) de bandes de glissement horizontale de même que les deux barrettes (9) de côté verticales et qui se trouvent au niveau des bords longitudinaux des barrettes (8) de bandes de glissement.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8913971U | 1989-11-27 | ||
DE8913971U DE8913971U1 (de) | 1989-11-27 | 1989-11-27 | Kurbelschleifenrahmen für einen Kurbelschleifentrieb einer Brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0429918A1 EP0429918A1 (fr) | 1991-06-05 |
EP0429918B1 true EP0429918B1 (fr) | 1992-10-07 |
Family
ID=6844944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90121458A Expired - Lifetime EP0429918B1 (fr) | 1989-11-27 | 1990-11-09 | Cadre pour le guidage des manetons pour un mécanisme de glissement d'un moteur à combustion interne |
Country Status (3)
Country | Link |
---|---|
US (1) | US5131353A (fr) |
EP (1) | EP0429918B1 (fr) |
DE (2) | DE8913971U1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10085207B4 (de) * | 1999-03-26 | 2009-06-25 | Reinhold Ficht | Bewegungswandler und Verfahren zum Schmieren seiner Gleitflächen |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991013244A1 (fr) * | 1990-02-21 | 1991-09-05 | Collins Motor Corporation Ltd. | Rotation alternative par interconnexion |
JP3137283B2 (ja) * | 1996-08-13 | 2001-02-19 | 大吉郎 磯谷 | 双方向型往復ピストン機関 |
US7503291B2 (en) * | 2005-03-09 | 2009-03-17 | Kiss Engineering, Inc. | Reciprocating device with dual chambered cylinders |
GB2494594A (en) * | 2010-06-29 | 2013-03-13 | Matthew B Diggs | Double-acting scotch yoke assembly for x-engines |
WO2012144073A1 (fr) * | 2011-04-22 | 2012-10-26 | 有限会社タックリサーチ | Mécanisme de manivelle à séparation xy, et dispositif d'entraînement équipé de celui-ci |
DE102013106755A1 (de) * | 2013-06-27 | 2014-12-31 | Bertwin R. Geist | Gleitstein für eine Kurbelschlaufen-Hubkolbenmaschine |
US11885378B2 (en) | 2021-06-04 | 2024-01-30 | Alfadan, Inc. | Cylinder unit for eliminating secondary forces in inline internal combustion engines |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1311060A (en) * | 1919-07-22 | Planooraph co | ||
US1287797A (en) * | 1918-01-08 | 1918-12-17 | John C Griswold | Internal-combustion engine. |
US2101556A (en) * | 1934-09-08 | 1937-12-07 | Wayne N Morgan | Airplane engine |
DE902925C (de) * | 1944-09-19 | 1954-01-28 | Schmidt Sche Heissdampf Ges M | Kurbeltriebwerk, insbesondere fuer schnellaufende Kolbenmaschinen |
US4013048A (en) * | 1975-12-12 | 1977-03-22 | Reitz Daniel M | Bourke type engine |
DE3218339A1 (de) * | 1982-05-14 | 1983-11-24 | Ficht GmbH, 8011 Kirchseeon | Kurbelschleifenanordnung fuer eine brennkraftmaschine mit mindestens zwei einander gegenueberliegenden zylindern |
DE3218311A1 (de) * | 1982-05-14 | 1983-11-24 | Ficht GmbH, 8011 Kirchseeon | Kurbelschleifenanordnung fuer brennkraftmaschinen, insbesondere zweitakt-brennkraftmaschinen mit einander gegenueberliegenden zylindern |
US4598672A (en) * | 1984-05-29 | 1986-07-08 | R P & M Engines | Apparatus for stabilizing the position of a yoke in an internal combustion engine |
DE3433510A1 (de) * | 1984-09-12 | 1986-03-20 | Ficht GmbH, 8011 Kirchseeon | Gleitstein fuer eine mit einer kurbelwelle zusammenwirkenden kurbelschleife, insbesondere fuer eine brennkraftmaschine mit mindestens einem zylinder |
GB8608237D0 (en) * | 1986-04-04 | 1986-05-08 | Collins Motor Corp Ltd | Reciprocatory positive displacement machines |
-
1989
- 1989-11-27 DE DE8913971U patent/DE8913971U1/de not_active Expired - Lifetime
-
1990
- 1990-11-09 EP EP90121458A patent/EP0429918B1/fr not_active Expired - Lifetime
- 1990-11-09 DE DE9090121458T patent/DE59000348D1/de not_active Expired - Lifetime
- 1990-11-27 US US07/619,060 patent/US5131353A/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10085207B4 (de) * | 1999-03-26 | 2009-06-25 | Reinhold Ficht | Bewegungswandler und Verfahren zum Schmieren seiner Gleitflächen |
DE19913889B4 (de) * | 1999-03-26 | 2010-01-21 | Reinhold Ficht | Hubkolbenmaschine |
Also Published As
Publication number | Publication date |
---|---|
EP0429918A1 (fr) | 1991-06-05 |
DE8913971U1 (de) | 1991-03-28 |
US5131353A (en) | 1992-07-21 |
DE59000348D1 (de) | 1992-11-12 |
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