DE102012208323A1 - hydrotransformer - Google Patents
hydrotransformer Download PDFInfo
- Publication number
- DE102012208323A1 DE102012208323A1 DE201210208323 DE102012208323A DE102012208323A1 DE 102012208323 A1 DE102012208323 A1 DE 102012208323A1 DE 201210208323 DE201210208323 DE 201210208323 DE 102012208323 A DE102012208323 A DE 102012208323A DE 102012208323 A1 DE102012208323 A1 DE 102012208323A1
- Authority
- DE
- Germany
- Prior art keywords
- hydraulic transformer
- control disk
- control
- transformer according
- displacement chambers
- 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- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C2/00—Rotary-piston engines
- F03C2/08—Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3445—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the vanes having the form of rollers, slippers or the like
Abstract
Die Erfindung betrifft einen Hydrotransformator mit einer Vielzahl von Verdrängerräumen und mit einer Steuerscheibe, die um eine Drehachse verdrehbar ist, um eine Pumpwirkung/Motorwirkung des Hydrotransformators zu verstellen, und die Steuerausnehmungen aufweist, denen jeweils mehrere Verdrängerräume zugeordnet sind. Die Erfindung zeichnet sich dadurch aus, dass sich die Größe der Verdrängerräume im Betrieb des Hydrotransformators, bezogen auf die Drehachse der Steuerscheibe, radial, tangential und/oder in Umfangsrichtung, verändert, um die Pumpwirkung/Motorwirkung des Hydrotransformators zu erzielen.The invention relates to a hydraulic transformer with a plurality of displacement chambers and with a control disk which can be rotated about an axis of rotation in order to adjust a pumping action / motor action of the hydraulic transformer, and which has control recesses to which several displacement chambers are assigned. The invention is characterized in that the size of the displacement chambers changes radially, tangentially and / or in the circumferential direction when the hydraulic transformer is in operation, based on the axis of rotation of the control disk, in order to achieve the pumping effect / motor effect of the hydraulic transformer.
Description
Die Erfindung betrifft einen Hydrotransformator mit einer Vielzahl von Verdrängerräumen und mit einer Steuerscheibe, die um eine Drehachse verdrehbar ist, um eine Pumpwirkung/Motorwirkung des Hydrotransformators zu verstellen, und die Steuerausnehmungen aufweist, denen jeweils mehrere Verdrängerräume zugeordnet sind. The invention relates to a hydraulic transformer having a plurality of Verdrängerräumen and with a control disk which is rotatable about an axis of rotation to adjust a pumping action / motor effect of the hydraulic transformer, and the control recesses, which each have a plurality of displacement chambers are assigned.
Aus der deutschen Offenlegungsschrift
Aufgabe der Erfindung ist es, einen Hydrotransformator gemäß dem Oberbegriff des Anspruchs 1 zu schaffen, der einfach aufgebaut und kostengünstig herstellbar ist. The object of the invention is to provide a hydraulic transformer according to the preamble of
Die Aufgabe ist bei einem Hydrotransformator mit einer Vielzahl von Verdrängerräumen und mit einer Steuerscheibe, die um eine Drehachse verdrehbar ist, um eine Pumpwirkung/Motorwirkung des Hydrotransformators zu verstellen, und die Steuerausnehmungen aufweist, denen jeweils mehrere Verdrängerräume zugeordnet sind, dadurch gelöst, dass sich die Größe der Verdrängerräume im Betrieb des Hydrotransformators, bezogen auf die Drehachse der Steuerscheibe, radial, tangential und/oder in Umfangsrichtung verändert, um die Pumpwirkung/Motorwirkung des Hydrotransformators zu erzielen. Aus dem vorab genannten Stand der Technik sind Hydrotransformatoren in verschiedenen Bauarten bekannt. Gemäß einem wesentlichen Aspekt der Erfindung werden an sich bekannte Bauarten von hydraulischen Verdrängermaschinen mit einer Steuereinrichtung kombiniert, die in Verbindung mit hydraulischen Axialkolbenmaschinen ebenfalls bekannt ist. Der erfindungsgemäße Hydrotransformator ist insbesondere für kleine bis mittlere Hydraulikdrücke geeignet. Durch die erfindungsgemäße Kombination wird ein kompakter Hydrotransformator geschaffen, der kostengünstig herstellbar ist. The object is achieved in a hydraulic transformer with a plurality of displacement chambers and with a control disk which is rotatable about an axis of rotation in order to adjust a pumping action / motor effect of the hydraulic transformer, and the control recesses, which are each associated with a plurality of displacement chambers, achieved in that the size of the displacement in the operation of the hydraulic transformer, relative to the axis of rotation of the control disk, radially, tangentially and / or circumferentially changed to achieve the pumping action / motor effect of the hydraulic transformer. Hydrotransformers of various types are known from the prior art mentioned above. According to one essential aspect of the invention, known types of hydraulic displacement machines are combined with a control device, which is also known in connection with hydraulic axial piston machines. The hydrotransformer according to the invention is particularly suitable for small to medium hydraulic pressures. The combination according to the invention provides a compact hydrotransformer which can be produced inexpensively.
Gemäß einem weiteren Aspekt der Erfindung sind die Verdrängerräume des Hydrotransformators voneinander trennbar. Das ist insbesondere mit den Verdrängerprinzipien Gerotor und Planetenradrotor möglich. Diese beiden Verdrängerprinzipien zählen zu den geometrisch stabilisierten/gebildeten Verdrängerräumen. According to a further aspect of the invention, the displacement chambers of the hydraulic transformer are separable from each other. This is possible in particular with the displacer principles gerotor and planetary gear rotor. These two displacement principles are among the geometrically stabilized / formed Verdrängerräumen.
Gemäß einem weiteren Aspekt der Erfindung wird der Einsatz von Verdrängerprinzipien vorgeschlagen, die ihre Verdrängerräume kinematisch-/kraftstabilisiert ausbilden. Dabei hat sich im Rahmen der vorliegenden Erfindung eine Ausführung des Hydrotransformators nach dem Flügelzellenprinzip, dem Rollenzellenprinzip oder nach dem Sperrflügelprinzip als besonders vorteilhaft erwiesen. According to a further aspect of the invention, the use of positive displacement principles is proposed, which form their displacement chambers kinematically / force-stabilized. In the context of the present invention, an embodiment of the hydrotransformer according to the vane cell principle, the roller cell principle or the blocking vane principle has proven particularly advantageous.
Ein weiteres bevorzugtes Ausführungsbeispiel des Hydrotransformators ist dadurch gekennzeichnet, dass die Steuerscheibe drei Steuerausnehmungen aufweist, die einem Systemdruckanschluss, einem Arbeitsanschluss und einem Tankanschluss des Hydrotransformators zugeordnet sind. Die Steuerausnehmungen sind vorzugsweise nierenförmig ausgebildet und stellen Fließquerschnitte dar, die im Zusammenwirken mit Dichtungen Kraft- bzw. Druckfeder erzeugen. Je nach Winkellage der Steuerscheibe zur Drehachse des Verdrängers, die vorzugsweise der Drehachse der Steuerscheibe entspricht beziehungsweise parallel zu dieser angeordnet ist, kann das Verhältnis zwischen Motorwirkung und Pumpwirkung verstellt werden. Der Tankanschluss sorgt für eine ausgeglichene Bilanz der zulaufenden und ablaufenden Fluidströme. A further preferred embodiment of the hydraulic transformer is characterized in that the control disk has three control recesses which are assigned to a system pressure connection, a working connection and a tank connection of the hydrotransformer. The control recesses are preferably kidney-shaped and represent flow cross-sections which generate force or compression spring in cooperation with seals. Depending on the angular position of the control disk to the axis of rotation of the displacer, which preferably corresponds to the axis of rotation of the control disk or is arranged parallel to this, the ratio between the motor effect and the pumping action can be adjusted. The tank connection ensures a balanced balance of the incoming and outgoing fluid flows.
Ein weiteres bevorzugtes Ausführungsbeispiel des Hydrotransformators ist dadurch gekennzeichnet, dass die Steuerscheibe auf einem Lagerabsatz in einem Gehäuse des Hydrotransformators drehbar gelagert ist. Durch die drehbare Lagerung können axiale Reibverluste zwischen Verdränger und Steuerscheibe reduziert werden. A further preferred embodiment of the hydrotransformer is characterized in that the control disk is rotatably mounted on a bearing shoulder in a housing of the hydraulic transformer. Due to the rotatable mounting axial friction losses between displacer and control disk can be reduced.
Ein weiteres bevorzugtes Ausführungsbeispiel des Hydrotransformators ist dadurch gekennzeichnet, dass der Lagerabsatz einen Umfang aufweist, der etwas größer als ein Außenumfang einer Verdrängereinheit ist. Dadurch können die axialen Reibverluste zwischen Verdränger und Steuerscheibe weiter reduziert werden. Another preferred embodiment of the hydrotransformer is characterized in that the bearing shoulder has a circumference which is slightly larger than an outer circumference of a displacer unit. As a result, the axial friction losses between displacer and control disk can be further reduced.
Ein weiteres bevorzugtes Ausführungsbeispiel des Hydrotransformators ist dadurch gekennzeichnet, dass die Steuerscheibe auf einem Lagerring drehbar gelagert ist. Der Lagerring ist vorzugsweise in das Gehäuse des Hydrotransformators eingelegt. Der Lagerring hat vorzugsweise einen inneren Umfang, der etwas größer als sein Außenumfang der Verdrängereinheit ist. Another preferred embodiment of the hydrotransformer is characterized in that the control disk is rotatably mounted on a bearing ring. The bearing ring is preferably inserted into the housing of the hydraulic transformer. The bearing ring preferably has one inner circumference, which is slightly larger than its outer periphery of the displacer unit.
Ein weiteres bevorzugtes Ausführungsbeispiel des Hydrotransformators ist dadurch gekennzeichnet, dass den Steuerausnehmungen jeweils eine Dichtung zugeordnet ist. Mit Hilfe der Dichtungen ist es möglich, eine definierte Kraftkomponente zu schaffen, mit der Axialspalte zwischen Verdränger und Steuerscheibe minimiert werden können. A further preferred embodiment of the hydrotransformer is characterized in that the control recesses each have a seal associated therewith. With the help of the seals, it is possible to create a defined force component, can be minimized with the axial gaps between the displacer and control disc.
Ein weiteres bevorzugtes Ausführungsbeispiel des Hydrotransformators ist dadurch gekennzeichnet, dass die Dichtungen jeweils in einer Nut in der Steuerscheibe angeordnet sind. Durch die Nuten können die Dichtungen auf einfache Art und Weise positioniert werden. Another preferred embodiment of the hydrotransformer is characterized in that the seals are each arranged in a groove in the control disk. Through the grooves, the seals can be easily positioned.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein Ausführungsbeispiel im Einzelnen beschrieben ist. Es zeigen: Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, an embodiment is described in detail. Show it:
In den
Das Hohlrad
Das Hohlrad
Gemäß einem wesentlichen Aspekt der Erfindung ist der Hydrotransformator
Den Steuerausnehmungen
Die Steuerausnehmungen
Der Anschluss
Je nach Winkellage der Steuerscheibe
An der Steuerscheibe
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Hydrotransformator hydrotransformer
- 22
- Gehäuse casing
- 55
- Hohlrad ring gear
- 88th
- Planeten planet
- 1010
- Rotor rotor
- 1212
- Verdrängerräume displacer
- 2020
- Steuerscheibe control disc
- 2121
- Steuerausnehmung control recess
- 2222
- Steuerausnehmung control recess
- 2323
- Steuerausnehmung control recess
- 3030
- Deckel cover
- 3131
- Anschluss connection
- 3232
- Anschluss connection
- 3333
- Anschluss connection
- 4040
- Steuerschaft control shaft
- 4141
- Dichtung poetry
- 4242
- Dichtung poetry
- 4343
- Dichtung poetry
- 5050
- Lagerabsatz stockists sales
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 10241979 A1 [0002] DE 10241979 A1 [0002]
- WO 97/31185 [0002] WO 97/31185 [0002]
- EP 1180217 A1 [0002, 0018] EP 1180217 A1 [0002, 0018]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210208323 DE102012208323A1 (en) | 2011-06-14 | 2012-05-18 | hydrotransformer |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011104079.3 | 2011-06-14 | ||
DE102011104079 | 2011-06-14 | ||
DE201210208323 DE102012208323A1 (en) | 2011-06-14 | 2012-05-18 | hydrotransformer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012208323A1 true DE102012208323A1 (en) | 2012-12-20 |
Family
ID=46513607
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210208323 Withdrawn DE102012208323A1 (en) | 2011-06-14 | 2012-05-18 | hydrotransformer |
DE112012002458.3T Withdrawn DE112012002458A5 (en) | 2011-06-14 | 2012-05-18 | hydrotransformer |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112012002458.3T Withdrawn DE112012002458A5 (en) | 2011-06-14 | 2012-05-18 | hydrotransformer |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102012208323A1 (en) |
WO (1) | WO2012171519A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018117737A1 (en) | 2018-07-23 | 2020-01-23 | Schaeffler Technologies AG & Co. KG | Fluid system for continuously variable transmission |
EP4290084A1 (en) * | 2022-06-07 | 2023-12-13 | Danfoss Power Solutions ApS | Hydraulic flow boost arrangement and hydraulic system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105570206B (en) * | 2016-02-24 | 2017-05-31 | 太原科技大学 | A kind of hydraulic transformer with combined type valve plate |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997031185A1 (en) | 1996-02-23 | 1997-08-28 | Innas Free Piston B.V. | Pressure transformer |
EP1180217A1 (en) | 1999-05-18 | 2002-02-20 | GKN Sinter Metals GmbH | Toothed rotor set |
DE10241979A1 (en) | 2002-09-11 | 2004-03-18 | Bosch Rexroth Ag | Hydrotransformer has dead space which enlarges displacement chamber during reversing phase, and switching unit has three control slots distributed around circumference, with dead spaces opening into region between control slots |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10037114B4 (en) * | 2000-01-25 | 2010-07-22 | Bosch Rexroth Aktiengesellschaft | hydrotransformer |
DE10034238A1 (en) * | 2000-07-13 | 2002-01-31 | Mannesmann Rexroth Ag | hydrotransformer |
-
2012
- 2012-05-18 DE DE201210208323 patent/DE102012208323A1/en not_active Withdrawn
- 2012-05-18 DE DE112012002458.3T patent/DE112012002458A5/en not_active Withdrawn
- 2012-05-18 WO PCT/DE2012/000534 patent/WO2012171519A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997031185A1 (en) | 1996-02-23 | 1997-08-28 | Innas Free Piston B.V. | Pressure transformer |
EP1180217A1 (en) | 1999-05-18 | 2002-02-20 | GKN Sinter Metals GmbH | Toothed rotor set |
DE10241979A1 (en) | 2002-09-11 | 2004-03-18 | Bosch Rexroth Ag | Hydrotransformer has dead space which enlarges displacement chamber during reversing phase, and switching unit has three control slots distributed around circumference, with dead spaces opening into region between control slots |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018117737A1 (en) | 2018-07-23 | 2020-01-23 | Schaeffler Technologies AG & Co. KG | Fluid system for continuously variable transmission |
WO2020020405A1 (en) | 2018-07-23 | 2020-01-30 | Schaeffler Technologies AG & Co. KG | Fluid system for a continuously variable transmission |
US11560946B2 (en) | 2018-07-23 | 2023-01-24 | Schaeffler Technologies AG & Co. KG | Fluid system for a continuously variable transmission |
EP4290084A1 (en) * | 2022-06-07 | 2023-12-13 | Danfoss Power Solutions ApS | Hydraulic flow boost arrangement and hydraulic system |
Also Published As
Publication number | Publication date |
---|---|
WO2012171519A2 (en) | 2012-12-20 |
WO2012171519A3 (en) | 2013-03-14 |
DE112012002458A5 (en) | 2014-02-27 |
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Legal Events
Date | Code | Title | Description |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140217 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20141202 |