DE102017008201A1 - Eccentric planetary gear for a double crank - Google Patents
Eccentric planetary gear for a double crank Download PDFInfo
- Publication number
- DE102017008201A1 DE102017008201A1 DE102017008201.4A DE102017008201A DE102017008201A1 DE 102017008201 A1 DE102017008201 A1 DE 102017008201A1 DE 102017008201 A DE102017008201 A DE 102017008201A DE 102017008201 A1 DE102017008201 A1 DE 102017008201A1
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- DE
- Germany
- Prior art keywords
- planetary gear
- crank
- gear
- engine
- double crank
- 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.)
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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
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
-
- 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
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
- F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
- F16H21/30—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with members having rolling contact
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transmission Devices (AREA)
- Retarders (AREA)
Abstract
Ein exzentrisches Planetengetriebe für die Doppelkurbel wird dadurch gebildet, dass beim herkömmlichen Planetengetriebe die Planetenzahnräder durch die exzentrischen Zahnräder ersetzt werden womit bei der gleichmäßigen Rotation der Innenkurbel der Rotation der Außenkurbel die unharmonische Schwingungen zugefügt werden.Bei der Anwendung eines exzentrischen Planetengetriebes für die Doppelkurbel der Kolben sich in der Umgebung zum Oberen Totpunkt des Motors kürzer aufhält als bei dem herkömmlichen Planetengetriebe für die Doppelkurbel. Mit der Steigung der Exzentrizität fällt der Druck in der Verbrennungskammer des Motors schneller. Durch die kürzere Einwirkung auf die Luft von hohen Druck und Temperatur wird die Bildung von Stickstoffoxiden in Verbrennungskammern des Motors reduziert.An eccentric planetary gear for the double crank is formed by replacing the planetary gears in the conventional planetary gear by the eccentric gears, which in the uniform rotation of the inner crank of the rotation of the outer crank the inharmonic vibrations are added. When using an eccentric planetary gear for the double crank of the piston is shorter in the environment to the top dead center of the engine than in the conventional planetary gear for the double crank. With the slope of the eccentricity of the pressure in the combustion chamber of the engine falls faster. The shorter exposure to high pressure and temperature air reduces the formation of nitrogen oxides in engine combustion chambers.
Description
Nicht ohne Hilfe mancher Auto-Manager ist der bewährte Diesel-Motor wegen seinen Abgas-Werten in den Verruf geraten. Bestimmt werden die Abgasnachbehandlungs Einrichtungen weiterentwickelt um die strengeren Normen für den Schadstoffgehalt im Abgas von Diesel-Motoren einzuhalten. Diese Abgas-Nachbehandlung fällt leichter und billiger aus wenn der Motor selber weniger Stickstoffoxide produziert. Seinen vergleichsweise zum OttoMotor höheren Wirkungsgrad erzeugt der Diesel-Motor durch einen höheren Komprimierungsgrad und entsprechend höheren Druck und Temperatur in den Verbrennungskammern seiner Zylinder. Unter diesen Bedienungen treten die Luftbestandteile der Stickstoff und der Sauerstoff miteinander in Verbindung: Es werden die Stickstoffoxide gebildet. Um die Bildung von Stickstoffoxiden einzudämmen wird bei manchen Motoren ein Teil von Abgas der eingesaugten frischen Luft beigemischt. Durch diese Abgasrückführung wird in Verbrennungskammern des Motors der Sauerstoffgehalt reduziert und somit die Bildung von Stickstoffoxiden gemindert. Die natürliche Einschränkung dieser Maßnahme ist offensichtlich, weil der Sauerstoff eigentlich für das Verbrennen von Kraftstoff benötigt wird. Die Bildung von Stickstoffoxiden kann zusätzlich reduziert werden auch durch die Verkürzung der Zeit der Einwirkung auf die Luft von höheren Druck und Temperatur in den Verbrennungskammern des Motors. Das heißt, der Kolben muss den Oberen Totpunkt (OT) des Motors möglichst schnell verlassen. Dies soll bedeuten dass der Kolben in der Umgebung zum OT schneller beschleunigt werden soll als in der Umgebung zum Unteren Totpunkt (UT). Anders ausgedrückt, die Hubbewegung des Kolbens muss unharmonisch bzw. asymmetrisch geordnet sein.Not without the help of some car managers, the proven diesel engine has fallen into disrepute because of its exhaust emissions. The exhaust aftertreatment equipment will undoubtedly be further developed to meet the stricter exhaust emission standards of diesel engines. This exhaust aftertreatment is easier and cheaper if the engine itself produces less nitrogen oxides. Its higher efficiency compared to the Otto engine, the diesel engine produced by a higher degree of compression and correspondingly higher pressure and temperature in the combustion chambers of its cylinders. Under these conditions, the air components of nitrogen and oxygen communicate with each other: nitrogen oxides are formed. In order to curb the formation of nitrogen oxides, in some engines, a portion of exhaust gas is added to the intake fresh air. This exhaust gas recirculation reduces the oxygen content in combustion chambers of the engine and thus reduces the formation of nitrogen oxides. The natural limitation of this measure is obvious because the oxygen is actually needed for the burning of fuel. The formation of nitrogen oxides can be additionally reduced also by the shortening of the time of exposure to the air of higher pressure and temperature in the combustion chambers of the engine. This means that the piston must leave the engine's top dead center (TDC) as quickly as possible. This means that the piston should be accelerated faster in the environment to the TDC than in the environment to the bottom dead center (UT). In other words, the stroke movement of the piston must be arranged inharmonically or asymmetrically.
Die Hubbewegung des Kolbens wird üblicherweise mithilfe einer Kurbel in die Rotation der Motorwelle umgewandelt. Alternativ besteht die Möglichkeit eine Doppelkurbel anzuwenden. Einige Beispiele für die Ausführung einer Doppelkurbel sind in folgenden Schriften des Deutschen Patentamtes beschrieben:
- (S1)
DE 842 292 B - (S2)
DE 10 2005 047 634 A1 - (S3)
DE 10 2009 038 061 B - (S4)
DE 10 2015 002 385 A1
- (S1)
DE 842 292 B - (S2)
DE 10 2005 047 634 A1 - (S3)
DE 10 2009 038 061 B - (S4)
DE 10 2015 002 385 A1
Die Ausführung einer Doppelkurbel verlangt die Rotation der beiden Kurbeln mittels eines Getriebes miteinander zu verknüpfen. In der Schrift (
Dies beschreibt im Kurzen den Stand der Technik.This briefly describes the state of the art.
Auf der
Das Zahnrad (
Auf der
Für den Zweck unharmonische bzw. asymmetrische Schwingungen des Zapfens (
Das Verhältnis von Zahnräder (
Im Diagramm auf der
Auf der
Vom Diagramm auf der
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 842292 B [0002]DE 842292 B [0002]
- DE 102005047634 A1 [0002]DE 102005047634 A1 [0002]
- DE 102009038061 B [0002]DE 102009038061 B [0002]
- DE 102015002385 A1 [0002]DE 102015002385 A1 [0002]
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017008201.4A DE102017008201B4 (en) | 2017-08-30 | 2017-08-30 | Planetary gear with gears mounted eccentrically with respect to its own axis of symmetry for a double crank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017008201.4A DE102017008201B4 (en) | 2017-08-30 | 2017-08-30 | Planetary gear with gears mounted eccentrically with respect to its own axis of symmetry for a double crank |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102017008201A1 true DE102017008201A1 (en) | 2019-02-28 |
DE102017008201B4 DE102017008201B4 (en) | 2021-06-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017008201.4A Active DE102017008201B4 (en) | 2017-08-30 | 2017-08-30 | Planetary gear with gears mounted eccentrically with respect to its own axis of symmetry for a double crank |
Country Status (1)
Country | Link |
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DE (1) | DE102017008201B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019004694B3 (en) * | 2019-07-03 | 2020-09-10 | Georg Schreiber | Planetary gear for pendulum journals |
RU2770622C1 (en) * | 2021-10-20 | 2022-04-19 | федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный аграрный университет" (ФГБОУ ВО Волгоградский ГАУ) | Method for converting rotational motion into translational and device for its implementation |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE842292C (en) | 1950-02-18 | 1952-06-26 | Alfred Ludwig Klemens Richter | Double crank engine |
DE8624014U1 (en) * | 1986-09-08 | 1986-10-23 | Michaelis, Karl-Heinz, 2801 Grasberg | Piston engine |
US20060053964A1 (en) * | 2004-06-29 | 2006-03-16 | Venettozzi Thomas M | Epitrochoidal crankshaft mechanism and method |
WO2007019645A1 (en) * | 2005-08-18 | 2007-02-22 | Peter Bortolin | Crank assemblies |
DE102005047634A1 (en) | 2005-10-05 | 2007-05-24 | Georg Schreiber | Dual crank lever for piston engine, is assembled from crank levers, so that head of inner crank lever is used as rotation axis for outer crank lever, where inner lever is rotated around angle and outer lever is rotated in opposite direction |
DE102009038061A1 (en) | 2009-08-19 | 2011-02-24 | Georg Schreiber | Planetary transmission for dual crank in piston engine, has lever forming outer crank, where connection of inner and outer cranks ensures conversion of constant rotation of primary axle into linear harmonic vibrations of pins |
DE102015002385A1 (en) | 2015-02-25 | 2016-08-25 | Georg Schreiber | Twin crank planetary gear for Atkinson engine |
-
2017
- 2017-08-30 DE DE102017008201.4A patent/DE102017008201B4/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE842292C (en) | 1950-02-18 | 1952-06-26 | Alfred Ludwig Klemens Richter | Double crank engine |
DE8624014U1 (en) * | 1986-09-08 | 1986-10-23 | Michaelis, Karl-Heinz, 2801 Grasberg | Piston engine |
US20060053964A1 (en) * | 2004-06-29 | 2006-03-16 | Venettozzi Thomas M | Epitrochoidal crankshaft mechanism and method |
WO2007019645A1 (en) * | 2005-08-18 | 2007-02-22 | Peter Bortolin | Crank assemblies |
DE102005047634A1 (en) | 2005-10-05 | 2007-05-24 | Georg Schreiber | Dual crank lever for piston engine, is assembled from crank levers, so that head of inner crank lever is used as rotation axis for outer crank lever, where inner lever is rotated around angle and outer lever is rotated in opposite direction |
DE102009038061A1 (en) | 2009-08-19 | 2011-02-24 | Georg Schreiber | Planetary transmission for dual crank in piston engine, has lever forming outer crank, where connection of inner and outer cranks ensures conversion of constant rotation of primary axle into linear harmonic vibrations of pins |
DE102009038061B4 (en) * | 2009-08-19 | 2013-06-06 | Georg Schreiber | Planetary gear for a double crank |
DE102015002385A1 (en) | 2015-02-25 | 2016-08-25 | Georg Schreiber | Twin crank planetary gear for Atkinson engine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019004694B3 (en) * | 2019-07-03 | 2020-09-10 | Georg Schreiber | Planetary gear for pendulum journals |
DE102019004694B9 (en) * | 2019-07-03 | 2020-12-03 | Georg Schreiber | Planetary gear for pendulum journals |
RU2770622C1 (en) * | 2021-10-20 | 2022-04-19 | федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный аграрный университет" (ФГБОУ ВО Волгоградский ГАУ) | Method for converting rotational motion into translational and device for its implementation |
Also Published As
Publication number | Publication date |
---|---|
DE102017008201B4 (en) | 2021-06-24 |
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