WO2015173411A1 - Positionierung des schaltelements für einen mechanisch geschalteten vcr-pleuel - Google Patents
Positionierung des schaltelements für einen mechanisch geschalteten vcr-pleuel Download PDFInfo
- Publication number
- WO2015173411A1 WO2015173411A1 PCT/EP2015/060794 EP2015060794W WO2015173411A1 WO 2015173411 A1 WO2015173411 A1 WO 2015173411A1 EP 2015060794 W EP2015060794 W EP 2015060794W WO 2015173411 A1 WO2015173411 A1 WO 2015173411A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connecting rod
- switching element
- crankshaft
- switch
- bearing
- Prior art date
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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
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D15/00—Varying compression ratio
- F02D15/02—Varying compression ratio by alteration or displacement of piston stroke
Definitions
- the invention relates to an internal combustion engine with an adjustable variable compression ratio, a crankshaft with a crankshaft center axis and at least one counterweight having an extension with a maximum distance to the crankshaft center axis, at least one connecting rod, an adjusting mechanism for adjusting the adjustable variable compression ratio, a switching element for switching the Adjusting mechanism, wherein the switching element is arranged on the connecting rod, and an actuating element for switching the switching element from a first position, which corresponds to a first compression ratio, in a second position.
- Such an internal combustion engine is known from WO-A-2014/019684 and WO-A-2014/019683.
- a switching element for switching the adjusting mechanism is arranged at the lower end of the connecting rod.
- an actuating element not moving with the crankshaft or the connecting rod is arranged for switching over the switching element.
- variable compression ratio internal combustion engines are known from DE-A-10 2011 108 790, DE-A-10 2012 014 917 and US-A-2 989 954.
- Object of the present invention is therefore to provide a reciprocating engine, in particular an internal combustion engine of the type mentioned, in which the number of possible variants for an arrangement of the switching element and its associated actuating element for switching the adjusting mechanism is increased.
- the invention accordingly proposes to arrange the actuating element for, in particular, mechanical actuation of the switching element with which the switch for adjusting the compression ratio is switched outside the area of the crankshaft which this together with its structural elements such as counterweights, crank pins, bearing pins, etc in rotation.
- the connecting rod provided with the adjusting mechanism now has a connecting rod section in the area of the crankshaft connecting rod bearing or around this bearing, which is outside the previously described area or space during one circulation of the connecting rod, for at least a part of the connecting rod. circulation. If now according to the invention the switch is arranged in said connecting rod section, it can be acted upon from outside the crankshaft with the actuating element.
- the actuating element has two actuating or contact surfaces, namely to transfer the switch from a first position to a second position and vice versa.
- the switch expediently extends in each of its two positions beyond a respective other side of the connecting rod.
- the actuating element acts in a different way than mechanically on the switching element.
- magnetic solutions for example, inductively operating switches or other non-contact switches such as capacitive or optical switches
- the corresponding actuating elements and switching elements are designed accordingly.
- the adjusting mechanism is proposed according to a development / variant of the invention that the switching element is arranged on the connecting rod, that during a circulation of the connecting rod, it describes a railway line which intersects a circle (so-called circle of flight) with a radius which is equal to the maximum distance of the counterweight from the crankshaft central axis. Then that is the switching element during one revolution of the connecting rod for a certain portion of its movement trajectory curve outside of the orbit of the counterweight, where the actuator can be relatively easily underge ⁇ introduced (design degrees of freedom).
- the position of the actuating element can be combined with the design of the actuating or button which is formed on the actuating element and on which the U mschaltelement hin manulose hin manuloses for Betä ⁇ term of the U mschaltelements is moved.
- the design of the operating surface reference is also made to the PCT patent application entitled "Internal combustion engine with shock-reduced button for adjusting a variable compression ratio" and the lawyer's sign 150828wo filed today at the European Patent Office, the content of which is hereby incorporated by reference belongs to the subject-matter of the present patent application.
- the crankshaft typically has at least one shaft journal and a crankpin.
- Massenausg of forces and moments of first and second order, which the crank is subjected during operation of the Ver ⁇ brennungskraftmasch ine are in the Ku rbelwel le Reifengewich- te angeord net.
- the counterweights are designed differently. In this case, the counterweights each have niethol most distances to a Kurbelwel lenffenachse around which the crankshaft d reeht. During the rotation of the crankshaft over ⁇ sweeps the respective counterweight a circular area.
- the counterweight of the crankshaft may be shaped in various ways, wherein the shape of the counterweight has at least one Warre ⁇ ckung with a maximum distance to Kurbelwel lenffenachse. at a partially circular counterweight, the counterweight can also have multiple extensions with the same maximum distance.
- a circle with a radius equal to this maximum distance encloses in a two-dimensional plane every point which is passed during rotation of the counterweight during one revolution of the connecting rod.
- a cylinder formed by a circle having a radius equal to the maximum distance and a center lying on the crankshaft center axis surrounds each point which overcomes the counterweight in space during a complete rotation of the crankshaft.
- the switching element moves during a complete revolution of the connecting rod on a railway line which intersects the above-mentioned circle or cylinder at least once.
- the actuating element can dimension the actuating element in the axial direction of the crankshaft and therefore also optimizes the shape of the actuating element.
- such an optimization can be carried out independently of the design of the internal combustion engine, in particular independently of the dimensioning of the counterweights of the internal combustion engine.
- the connecting rod has a connecting rod foot
- the connecting rod bearing cover with a first and a second screw is attached to the connecting rod and one of the two screws, the first or the second screw, between the switching element and the each other screw be, the second or according to the first screw be, is seen ⁇ .
- the switching on a narrow side surface of the connecting rod head angeord net, wherein the connecting rod head has a wide side surface, d urch which passes the crankshaft, and a narrow Be ⁇ ten Chemistry, which is preferably parallel to the Kurbelwel extends lenachse.
- a special variant of this embodiment provides that the switching element ment is provided on the big end.
- a receptacle for the switching element can be produced after a break-up of the connecting rod head on the connecting-rod bearing cover.
- a white ⁇ tere specific embodiment provides that the switching on Pleuella- Gerd eckel and once at the narrow side surface angeord net, wherein between the switching element and the first or second screw the other screw, the second, or according to t he first screw, is seen before ⁇ .
- the internal combustion engine is an in-line engine.
- the internal combustion engine may be embodied as a 4, 5, 6 or 8 cylinder in-line engine.
- a special embodiment provides that the internal combustion engine is designed as a boxer engine.
- the internal combustion engine may be designed as a 4-, 6- or 8-cylinder in-boxer engine.
- a further image ung provides that the internal combustion engine having two Zylin ⁇ derbänke which are V-shaped to each other angeord net.
- the internal combustion engine being ⁇ leads as a 4-, 5-, 6-, or 8-cylinder engine can be.
- the actuating element is moved from a first to a second or from a second to a first operating position.
- the connecting rod is revolved until the switching element of the connecting rod, depending on the position of the actuating element, can touch it at a first contact point, the switching element having a line during a complete revolution of the connecting rod, which has a circle with a radius, wel ⁇ cher is equal to the maximum distance intersects.
- the actuator is within the In ⁇ tervalls during which the switching element is moved along its running outside the circle curve section, is brought into active connection with the switching element.
- Figure 1 is a sectional view of an internal combustion engine with an adjustable variable compression ratio, a crankshaft, a connecting rod, an adjusting mechanism for adjusting the setting ⁇ cash variable compression ratio and a Umschaltele ⁇ ment;.
- Fig. 2 is a sectional view of the switching element
- 3 shows a speed profile of the switching element over a first crankshaft range
- 4 shows a second speed profile of the switching element over a second crankshaft range
- 5 shows a first possible arrangement of a switching element at a in the
- Fig. 6 a web line for the switching element of the connecting rod of Fig. 5; 7 shows a second possible arrangement of a switching element on a
- Fig. 8 a web line for the switching element of the connecting rod of Fig. 7; 9 shows a third possible arrangement of a switching element in the region of the crankshaft spline bearing in a boxer engine;
- FIG. 1 shows an internal combustion engine having a housing 1 with a variably adjustable compression ratio, a crankshaft 2 at least one connecting rod 3, an adjusting mechanism 4 for adjusting the adjustable compression ratio and a Switching element 5 for a switch (not shown in FIG. 1, see, for example, FIG. 2) for switching the adjusting mechanism 4.
- the switching element 5 is arranged on the connecting rod 3.
- the connecting rod 3 has a connecting rod shaft on which the compression piston 3 'bearing connecting rod eye is formed, and a connecting rod cap 3, which surrounds the crankshaft ⁇ tap.
- a holder 6 is preferably provided in an area near the bottom dead center of the connecting rod 3, which is parallel to the crankshaft center axis extension forward and predominantlybewegbar and to an actuating element 7 with two actuating surfaces 8, 8 'for selectively acting mechanically on the switching element 5 at whose passing tion are arranged on the actuating element 7 during one revolution of the connecting rod 3.
- the actuating surfaces 8, 8 ' cause switching of the switching element 5 and thus the switch from the first in the second switching position, while the actuating surface 8', the switching element 5 is actuated for transferring the switch from the second in the first switching position.
- the switching element 5 can control a switch 20 in the form of a hydraulic directional valve for a hydraulic control of a working space, as it is embodied, for example, in FIG. 1 of DE-A-10 2005055 199 as a working space 29.1 or 29.2 ,
- the switching element 5 can control a hydraulic directional control valve, which in each case releases a drainage bore assigned to a working space.
- a drainage hole is shown for example in FIG. 2 of DE-A-10 2005 055 199 as drainage bore 36.
- the hydraulic valve has at least two switching control, which in each case a first position of the switch 20 and a second position of the switch 20 corre ⁇ chen.
- DE-A-10 2012 020 999 describes different possibilities of connecting a hydraulic directional control valve. Reference is made to this document with regard to a possible embodiment of the hydraulic circuit in the connecting rod as well as the design of the circuit in the connecting rod full content in the context of the disclosure of this application, so that the content of DE-A-10 2012 020 999 to the subject of the present application belongs.
- Fig. 2 also shows the interaction of the switching element 5 with a hydraulic directional control valve as a three / two-way valve 11 and generally with the switch 20.
- the three / two-way valve function is in this case by the interaction of a first two / two-way valve 12 and a realized second two-way valve 13.
- the two / two-way valves 12 and 13 can be designed as seat valves, for example by a ball check valve, which can be pressed by a plunger.
- a first Plunger 14 is the first two / two-way valve 12 zugeord net.
- a second plunger 15 is the second two / two-way valve zugeord net.
- the two plungers 14 and 15 are d urch controllable by the switching element 5.
- the U mschaltelement 5 can be detained by means of a latching device 16 in a particular switching position.
- the latching device 16 can be realized by means of a resilient pressure piece 17 and a first latching contour 18 formed on the switching element 5. So that the plungers do not unintentionally open the two / two-way valves under the influence of inertial forces, the plungers are pressed against the switching element 5 by springs.
- the locking device 16 has a second Rastkontu r 19.
- the locking contour 18 causes in cooperation with the resilient pressure piece 17 holding the switching element 5 in a first Stel development.
- the Rastkontu r 19 causes in cooperation with the resilient pressure piece 17 holding the U mschaltelements 5 in a second Stel development.
- the actuating element 7 By shifting the actuating element 7 into one of the two arrows through the double arrow in FIG. 2 directions indicated is the U mschaltelement 5 and thus the switch 20 when the connecting rod 30 with its U mschaltelement 5 having connecting rod portion of the actuating element 7 moves past (see the Einzelfal l in Fig. 2) from a first switching position in a second and conversely transferred.
- the switching element 5 moves in one revolution of the connecting rod 3 due to the kinematic specifications, such as the crankshaft radius, the push rod length of the connecting rod 3 and the position of the switching element 5 on the connecting rod 3 along a movement path n with varying speed.
- Fig. 1 is for a specific embodiment a el liptician Bahnl inie 9 of U m ⁇ switching element 5 dargestel lt.
- the positions of the switching element 5 on the web 9 should be given in degrees of crank angle as a function of the rotational setting of the crankshaft 2, which is described by an angle ⁇ .
- one value of the win- kels ⁇ of 0 degrees crank angle a position of the switching element 5 in obe ⁇ ren dead center of the connecting rod 3, wherein this point in FIG. 1 on the Brul inie with a point 10 is located.
- a value of the angle ⁇ degrees Kurbelwin ⁇ angle of 180 corresponds to the position 21 of the switching element 5, which on the line 9 l IEGT.
- Fig. 3 shows a first q ual itativen VELOCITY keitsverlauf 41 of the absolute velocity vi of the switching element 5 ü above the angle ⁇ in degrees Ku r ⁇ belwinkel.
- the absolute ute speed of the switching element 5 is strictly monotonically increasing in a crank angle range of 170 degrees to 190 degrees.
- a speed ratings l of the engine of about 4500 rev re ⁇ relations per M inute preferably absol ute speed of Umschaltele ⁇ ments 5 reaches a maximum value of 30 m / s.
- Fig. 4 shows a second qualitative velocity profile 42 of the absolute velocity v2 of the switching element 5 through the movement of Posi ⁇ tion, in degrees crank angle of the angle a.
- the absol ute speed U m ⁇ switching element 5 is strictly monotonically decreasing.
- the absolute speed of the switching element 5 preferably reaches a maximum value of 30 m / s.
- Fig. 5 shows a first find the risk of arrangement of a switching element 51 at egg ⁇ nem connecting rod bearing cap 52 of a connecting rod 63, the rod cap 52 with a first Schrau be 53 and a second screw is fixed to a connecting rod 55 54th Fig.
- FIG. 5 further shows a stippled dargestel lte wide side surface 56 of a connecting rod head 57, the connecting rod head 57 T he Pleuella ⁇ Gerd eckel 52 and the connecting rod is formed 55th
- the wide side surface 56 is pierced by a connecting rod bearing receptacle 58 d.
- the middle pu nkt 59 of the U mschaltelements 51 has in a special len embodiment a distance of at least 1 cm, in a further embodiment of at least 1, 5 cm and in a modified embodiment of at least 2 cm from a connecting line 60, which a screw head end 61 of the screw 54 connects to a screw head end 62 of the screw 53.
- Fig. 5 also shows how the switching element 51 between the first screw 54 and the second screw 53 is angeord net.
- Such At ⁇ ord voltage of the U mschaltelements 51 may be expediently provided in adhesive advantage for Rei ⁇ henmotor.
- FIG. 6 shows the portion of the webbing 71 lying outside the counterweight circle 78, by way of example for the switching element 51 during one revolution of the connecting rod 63.
- FIG. 6 also shows a Kurbelwel le 72, wel ⁇ cher a counterweight 73 is arranged.
- the counterweight 73 has at least an extension 74 with a maximum distance 75 to the crankshaft center axis 76.
- the switching element 51 moves during one revolution of the connecting rod 63 along the Brul inie 71 which intersects the vie circle 78, which has a wheel ius, which is equal the maximum distance 75 of the extension 74 of the counterweight 73 is.
- the intersections of Brul inie 71 with the Fl ug Vietnamese 78 are shown in FIG.
- FIG. 7 shows a second arrangement of a switching element 91 on a connecting-rod bearing cover 92 of a connecting rod 96, which is fastened by means of a first screw 93 and a second screw 94 to a connecting-rod end 95 of the connecting rod 96 is.
- the switching element 91 is provided on the connecting rod bearing cap 92, preferably on a narrow side surface 97 of the connecting rod head 98, which is formed by the connecting rod bearing cap 92 and the connecting rod root 95.
- a wide Be ⁇ ten Chemistry of the connecting rod 98 is shown by the dashed line 99th
- the arrangement of the switching element 91 shown in Figure 7 is for example as ⁇ provided for an internal combustion engine having V-shaped cylinder banks designated at ⁇ geord.
- the switching element 91 is in a preferred embodiment with a distance of at least Vi cm, in a further embodiment at least 1 cm, in a different Abwand lung at least 1, 5 cm and in a further embodiment at least 2 cm from the screw center line 100 of the nearest screw 94 spaced.
- Pivot bearing cover to be divided obliquely, which means that the separation plane between the two is not substantially perpendicular, but at an acute angle to the extension of the connecting rod.
- the U mschaltelement also on the connecting rod, namely on the Kurbelwel lenpleuellager side facing away at least one of the two connecting elements angeord ⁇ net be.
- FIG. 8 shows a web line 171 by way of example for the switching element 91 during one revolution of the connecting rod 96.
- FIG. 8 also shows a Kurbelwel le 172, to which a counterweight 173 is angeord net.
- the counterweight 173 has at least one extension 174 with a maximum distance 175 to the crankshaft center axis 176.
- the switching element 91 moves during a full turn of the connecting rod 96 along the line 171, which intersects a circle 178 having a wheel which has a radius is equal to the maximum distance 175 of the extension 174 of the counterweight 173.
- the Intersections of Brul inie 171 with the circle 178 are shown in FIG. 8 with the points 179 shown.
- Fig. 9 shows a third arrangement of a switching element 191 on a connecting-rod bearing cap 192 of a connecting rod 196, which is fastened by means of a first screw 193 and a second screw 194 to a connecting-rod end 195 of the connecting rod 196.
- the switching element 191 is provided on the connecting rod foot 195, preferably on a narrow side surface 197 of the connecting rod head 198, which d urch the bearing cap 192 and the connecting rod foot 195 is formed.
- a broad side surface of the connecting rod head 198 is shown by the dashed line 199.
- the Anord shown in Figure 9 tion of the switching element 191 is provided for example for an internal combustion engine, which is designed as a boxer engine.
- the switching element 191 is in a preferred embodiment with a distance of at least Vi cm, in a further embodiment at least 1 cm, in a different Abwand treatment at least 1, 5 cm and in a further embodiment, at least 2 cm from the screw center line 200 of the zune next Spaced screw 194.
- FIG. 10 shows a track 271 as an example of the switching element 191 during one revolution of the connecting rod 196.
- FIG. 10 also shows a crankshaft 272 on which a counterweight 273 is disposed.
- the counterweight 273 has at least an extension 274 with a maximum distance 275 to Kurbelwel lenffenachse 276.
- the switching element 191 moves during one revolution of the connecting rod 196 along the Brul inie 271, which intersects a circle 278, which has a wheel ius, which is equal to the maximum distance 275 of the extension 274 of the counterweight 273 is.
- the cutting ⁇ points of the railway line 271 to the circuit 278 are shown in FIG. 10 with the points 279 dargestel lt.
- the invention can be alternatively replaced by one of the following.
- the feature groups can be combined with each other and also individual features of a feature group with one or more features of one or more other feature groups and / or one or more of the aforementioned embodiments of the invention can be combined.
- An internal combustion engine with an adjustable variable compression ratio a crankshaft 2 with a crankshaft center axis and at least one counterweight having an extension with a maximum distance to the crankshaft center axis, at least one connecting rod 3, an adjusting mechanism 4 for adjusting the adjustable variable compression ratio, a switching element 5 for Switching the adjusting mechanism 4, wherein the switching element 5 is arranged on the connecting rod 3, and an actuating element for switching the switching element 5 from a first position to a second position, wherein the switching element in a complete revolution of the connecting rod describes a closed curve, which in axial Projection on the crankshaft as viewed intersects a circle having a radius which is equal to the maximum distance of the counterweight from the crankshaft center axis.
- crank shaft 2 having a crankshaft center axis and at least one counterweight extending up to an outer counterweight radius from the crankshaft center axis, a connecting rod 3 and an adjusting mechanism for adjusting the variable compression ratio, wherein a switching element 5 for switching the adjusting mechanism disposed on the connecting rod 3 and is actuated by means of an actuating element, and
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580025287.6A CN106460655B (zh) | 2014-05-15 | 2015-05-15 | 用于机械切换式vcr连杆的切换元件的定位 |
US15/311,124 US10202900B2 (en) | 2014-05-15 | 2015-05-15 | Positioning the switching element for a mechanically switched VCR connecting rod |
DE112015002275.9T DE112015002275A5 (de) | 2014-05-15 | 2015-05-15 | Positionierung des Schaltelements für einen mechanisch geschalteten VCR-Pleuel |
JP2017512442A JP2017517678A (ja) | 2014-05-15 | 2015-05-15 | 機械的に切り換えられるvcrコンロッドのための切換え要素の位置決め |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014007051.4 | 2014-05-15 | ||
DE102014007051 | 2014-05-15 |
Publications (1)
Publication Number | Publication Date |
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WO2015173411A1 true WO2015173411A1 (de) | 2015-11-19 |
Family
ID=53199975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/060794 WO2015173411A1 (de) | 2014-05-15 | 2015-05-15 | Positionierung des schaltelements für einen mechanisch geschalteten vcr-pleuel |
Country Status (5)
Country | Link |
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US (1) | US10202900B2 (de) |
JP (1) | JP2017517678A (de) |
CN (1) | CN106460655B (de) |
DE (1) | DE112015002275A5 (de) |
WO (1) | WO2015173411A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017113521A1 (de) | 2016-07-28 | 2017-08-10 | FEV Europe GmbH | Hubkolbenmaschine, insbesondere als Verbrennungskraftmaschine, mit veränderbarem Verdichtungsverhältnis |
DE102017116014A1 (de) | 2016-07-29 | 2017-08-31 | FEV Europe GmbH | Hubkolbenmaschine mit einstellbarem Verdichtungsverhältnis, insbesondere Hubkolbenbrennkraftmaschine, und Pleuel für eine derartige Hubkolbenmaschine |
DE102017120528A1 (de) | 2017-09-06 | 2017-10-19 | FEV Europe GmbH | VCR-Hubkolbenmaschine |
DE102017123726A1 (de) | 2017-10-12 | 2017-11-23 | FEV Europe GmbH | VCR-Hubkolbenmaschine |
DE102017130742A1 (de) | 2017-12-20 | 2018-02-15 | FEV Europe GmbH | Hubkolbenmaschine mit veränderlichem Verdichtungsverhältnis |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3428423A1 (de) * | 2017-07-13 | 2019-01-16 | Volvo Car Corporation | Schaltgestell für eine pleuelstange mit variablem verdichtungsverhältnis und fahrzeug mit solch einem schaltgestell |
DE102019100952A1 (de) * | 2019-01-15 | 2020-07-16 | ECO Holding 1 GmbH | Verstelleinrichtung zum Betätigen eines Umschaltventils einer Brennkraftmaschine mit variabler Verdichtung sowie Verfahren zum Herstellen einer Verstelleinrichtung |
FR3102814B1 (fr) | 2019-11-04 | 2021-11-26 | MCE 5 Development | Bielle à longueur variable pour moteur à rapport volumétrique piloté |
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2015
- 2015-05-15 CN CN201580025287.6A patent/CN106460655B/zh active Active
- 2015-05-15 WO PCT/EP2015/060794 patent/WO2015173411A1/de active Application Filing
- 2015-05-15 JP JP2017512442A patent/JP2017517678A/ja active Pending
- 2015-05-15 US US15/311,124 patent/US10202900B2/en active Active
- 2015-05-15 DE DE112015002275.9T patent/DE112015002275A5/de active Pending
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DE102005055199A1 (de) | 2005-11-19 | 2007-05-24 | Fev Motorentechnik Gmbh | Hubkolbenverbrennungskraftmaschine mit einstellbar veränderbarem Verdichtungsverhältnis |
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DE102012014917A1 (de) | 2011-07-29 | 2013-02-07 | Fev Gmbh | Druckimpulsansteuerung für eine Verstelleinrichtung eines variablen Verdichtungsverhältnisses |
DE102011056298A1 (de) * | 2011-12-12 | 2013-06-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Pleuelstangenanordnung sowie Verfahren zum Schalten eines Umschaltventils einer derartigen Pleuelstangenanordnung |
DE102012020999A1 (de) | 2012-07-30 | 2014-01-30 | Fev Gmbh | Hydraulischer Freilauf für variable Triebwerksteile |
WO2014019683A1 (de) | 2012-07-30 | 2014-02-06 | Fev Gmbh | Hydraulischer freilauf für brennkraftmaschine mit variablem verdichtungsverhältnis |
WO2014019684A1 (de) | 2012-07-30 | 2014-02-06 | Fev Gmbh | Aktuierungseinheit für variable triebwerkskomponenten |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102017113521A1 (de) | 2016-07-28 | 2017-08-10 | FEV Europe GmbH | Hubkolbenmaschine, insbesondere als Verbrennungskraftmaschine, mit veränderbarem Verdichtungsverhältnis |
DE102017116014A1 (de) | 2016-07-29 | 2017-08-31 | FEV Europe GmbH | Hubkolbenmaschine mit einstellbarem Verdichtungsverhältnis, insbesondere Hubkolbenbrennkraftmaschine, und Pleuel für eine derartige Hubkolbenmaschine |
DE102017120528A1 (de) | 2017-09-06 | 2017-10-19 | FEV Europe GmbH | VCR-Hubkolbenmaschine |
DE102018120949A1 (de) | 2017-09-06 | 2018-10-18 | FEV Europe GmbH | VCR-Hubkolbenmaschine |
DE102017123726A1 (de) | 2017-10-12 | 2017-11-23 | FEV Europe GmbH | VCR-Hubkolbenmaschine |
DE102018124697A1 (de) | 2017-10-12 | 2018-12-13 | FEV Europe GmbH | VCR-Hubkolbenmaschine |
US10746107B2 (en) | 2017-10-12 | 2020-08-18 | FEV Europe GmbH | Variable compression ratio reciprocating piston engine |
DE102017130742A1 (de) | 2017-12-20 | 2018-02-15 | FEV Europe GmbH | Hubkolbenmaschine mit veränderlichem Verdichtungsverhältnis |
DE102018132650A1 (de) | 2017-12-20 | 2019-02-14 | FEV Europe GmbH | Hubkolbenmaschine mit veränderlichem Verdichtungsverhältnis |
Also Published As
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US20170089257A1 (en) | 2017-03-30 |
US10202900B2 (en) | 2019-02-12 |
CN106460655B (zh) | 2019-10-11 |
JP2017517678A (ja) | 2017-06-29 |
DE112015002275A5 (de) | 2017-02-16 |
CN106460655A (zh) | 2017-02-22 |
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