DE102011018394A1 - Displacement pump e.g. oil pump, for supplying oil to lubricate internal combustion engine of motor car, has rotor comprising recess inserted into chamber wall and retaining part of operating medium in chamber in standstill state of pump - Google Patents
Displacement pump e.g. oil pump, for supplying oil to lubricate internal combustion engine of motor car, has rotor comprising recess inserted into chamber wall and retaining part of operating medium in chamber in standstill state of pump Download PDFInfo
- Publication number
- DE102011018394A1 DE102011018394A1 DE201110018394 DE102011018394A DE102011018394A1 DE 102011018394 A1 DE102011018394 A1 DE 102011018394A1 DE 201110018394 DE201110018394 DE 201110018394 DE 102011018394 A DE102011018394 A DE 102011018394A DE 102011018394 A1 DE102011018394 A1 DE 102011018394A1
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- DE
- Germany
- Prior art keywords
- pump
- chamber
- rotor
- chamber wall
- displacement pump
- 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
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- 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
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
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- 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
- F04C2240/00—Components
- F04C2240/20—Rotors
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- 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
- F04C2250/00—Geometry
- F04C2250/20—Geometry of the rotor
-
- 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
- F04C2250/00—Geometry
- F04C2250/30—Geometry of the stator
- F04C2250/301—Geometry of the stator compression chamber profile defined by a mathematical expression or by parameters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Verdrängerpumpe nach dem Oberbegriff des Anspruchs 1.The invention relates to a positive displacement pump according to the preamble of claim 1.
Aus der
Der Erfindung liegt insbesondere die Aufgabe zugrunde, ein Ansaugverhalten der Verdrängerpumpe, insbesondere bei einem Motorstartvorgang, zu verbessern. Diese Aufgabe wird gemäß der Erfindung durch die Merkmale des Anspruchs 1 gelöst. Weitere Ausgestaltungen ergeben sich aus den Unteransprüchen.The invention is in particular the object of improving a suction behavior of the positive displacement pump, in particular during an engine starting process. This object is achieved according to the invention by the features of claim 1. Further embodiments emerge from the subclaims.
Die Erfindung geht aus von einer Verdrängerpumpe für ein Betriebsmittelsystem eines Kraftfahrzeugs, mit einem Pumpgehäuse und einem Rotor, der innerhalb des Pumpgehäuses angeordnet ist und der zur radialen Begrenzung wenigstens einer, zur Aufnahme eines Betriebsmittels vorgesehenen Kammer eine dem Pumpgehäuse zugewandte Kammerwandung aufweist.The invention relates to a positive displacement pump for an operating system of a motor vehicle, having a pump housing and a rotor, which is arranged within the pump housing and for radial limitation of at least one, provided for receiving a resource chamber has a pump housing facing chamber wall.
Es wird vorgeschlagen, dass der Rotor zumindest eine in die Kammerwandung eingebrachte Tasche aufweist, die dazu vorgesehen ist, bei einem Stillstand einen Teil des Betriebsmittels in der Kammer zurückzuhalten. Dadurch kann nach dem Betrieb und somit beim Abstellen eines Verbrennungsmotors des Kraftfahrzeugs in Abhängigkeit einer Position des Kraftfahrzeugs, insbesondere in Abhängigkeit einer Schräglage des Kraftfahrzeugs, ein Teil des Betriebsmittels in der Kammer gehalten und somit ein Abfließen in eine Betriebsmittelwanne verhindert werden, wodurch der durch die Taschen zurückgehaltene Teil des Betriebsmittels beim Betrieb sofort in der Kammer zur Verfügung steht. Der zurückgehaltene Teil des Betriebsmittels kann zur inneren Abdichtung genutzt werden, wodurch eine innere Leckage der Verdrängerpumpe reduziert werden kann. Dadurch kann ein sicheres Ansaugen des Betriebsmittels realisiert werden, wodurch ein Ansaugvorgang der Verdrängerpumpe, insbesondere bei dem Motorstartvorgang, d. h. bei einer Wiederaufnahme des Betriebs verbessert werden. Unter einem „Motorstartvorgang” soll insbesondere ein Vorgang verstanden werden, in dem der Verbrennungsmotor, ausgehend von einem Motorstillstand, zum Laufen gebracht wird und/oder bei dem ausgehend von einem Stillstand des Rotors der Rotor zum Laufen, d. h. zum Rotieren gebracht wird und/oder bei dem ein Betrieb der Verdrängerpumpe wieder aufgenommen wird. Unter einer „radialen Begrenzung” soll insbesondere eine Begrenzung verstanden werden, die in radialer Richtung wirkt, d. h. in eine Richtung, die senkrecht zu einer Rotationsachse des Rotors orientiert ist. Unter einer „dem Pumpgehäuse zugewandten Kammerwandung” soll insbesondere eine Kammerwandung verstanden werden, die zumindest eine Flächennormale aufweist, die senkrecht zu der Rotationsachse orientiert ist und/oder die Richtung Pumpgehäuse zeigt. Unter einer „Tasche” soll insbesondere ein Bauteil verstanden werden, das dazu vorgesehen ist, in dem Stillstand des Rotors mit dem Betriebsmittel befällt zu werden und/oder während dem Stillstand mit dem Betriebsmittel befüllt zu bleiben. Unter einer „in die Kammerwandung eingebrachten Tasche” soll insbesondere eine Tasche verstanden werden, die einstückig mit der Kammerwandung ausgebildet ist. Unter „vorgesehen” soll insbesondere speziell ausgelegt, ausgestattet und/oder angeordnet verstanden werden.It is proposed that the rotor has at least one pocket introduced into the chamber wall, which is intended to retain a part of the operating medium in the chamber at a standstill. As a result, after operation and thus when switching off an internal combustion engine of the motor vehicle depending on a position of the motor vehicle, in particular as a function of an inclined position of the motor vehicle, held a part of the operating means in the chamber and thus a flow into a working trough be prevented, whereby the by the Pocket retained part of the equipment during operation is immediately available in the chamber. The retained part of the equipment can be used for internal sealing, whereby internal leakage of the positive displacement pump can be reduced. As a result, a safe suction of the operating means can be realized, whereby a suction process of the positive displacement pump, in particular during the engine starting process, d. H. be improved on a resumption of operation. An "engine starting process" is to be understood as meaning, in particular, a process in which the internal combustion engine, starting from a motor standstill, is made to start running and / or when the rotor starts to run, ie when the rotor is at a standstill. H. is rotated and / or in which an operation of the positive displacement pump is resumed. By a "radial boundary" is meant in particular a limitation that acts in the radial direction, d. H. in a direction oriented perpendicular to a rotational axis of the rotor. A "chamber wall facing the pump housing" is to be understood in particular as meaning a chamber wall which has at least one surface normal which is oriented perpendicular to the axis of rotation and / or which points the pump housing direction. A "pocket" is to be understood in particular as meaning a component which is intended to be filled with the operating means when the rotor is at a standstill and / or to remain filled with the operating equipment during standstill. A "pocket introduced into the chamber wall" should in particular be understood to mean a pocket which is formed integrally with the chamber wall. By "provided" is to be understood in particular specially designed, equipped and / or arranged.
Weiter wird vorgeschlagen, dass die Tasche als eine radial nach außen gerichtete Ausnehmung in der Kammerwandung ausgebildet ist. Dadurch kann die Tasche besonders einfach und vorteilhaft hergestellt werden. Unter einer „Ausnehmung” soll insbesondere eine Materialfehlstelle verstanden werden, die in einem Querschnitt, insbesondere senkrecht zu einer Einbringrichtung vollständig von einem Material des Rotors umgeben ist. Unter einer „radial nach außen gerichteten Ausnehmung” soll insbesondere eine Ausnehmung verstanden werden, die eine radial verlaufende Tiefe aufweist und/oder die einen sich radial in den Rotor erstreckenden Ausnehmungsverlauf aufweist. Unter „radial” soll insbesondere in Bezug zu der Rotationsachse des Rotors verstanden werden.It is further proposed that the pocket is formed as a radially outwardly directed recess in the chamber wall. This allows the bag to be made particularly simple and advantageous. A "recess" is to be understood in particular as a material fault, which is completely surrounded by a material of the rotor in a cross section, in particular perpendicular to an insertion direction. A "radially outwardly directed recess" should in particular be understood to mean a recess which has a radially extending depth and / or which has a recess profile extending radially into the rotor. By "radial" should be understood in particular with respect to the axis of rotation of the rotor.
Außerdem wird vorgeschlagen, dass die Tasche einen Durchmesser kleiner als 12 mm und/oder eine Tiefe größer als 2 mm aufweist. Dadurch kann eine besonders vorteilhafte Menge an Betriebsmittel zurückgehalten werden. Vorzugsweise weist die Tasche einen Durchmesser auf, der zwischen 2 und 12 mm, besonders vorteilhaft zwischen 4 und 10 mm und ganz besonders vorteilhaft zwischen 5 und 9 mm liegt. Vorteilhafterweise weist die Tasche eine Tiefe auf, die zwischen 2 und 8 mm, besonders vorteilhaft zwischen 3 und 6 mm und ganz besonders vorteilhaft zwischen 4 und 5 mm liegt.It is also proposed that the pocket have a diameter smaller than 12 mm and / or a depth greater than 2 mm. As a result, a particularly advantageous amount of resources can be retained. Preferably, the pocket has a diameter which is between 2 and 12 mm, more preferably between 4 and 10 mm and most preferably between 5 and 9 mm. Advantageously, the pocket has a depth which is between 2 and 8 mm, more advantageously between 3 and 6 mm and most preferably between 4 and 5 mm.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In den Zeichnungen ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Zeichnungen, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawings, an embodiment of the invention is shown. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
Dabei zeigen:Showing:
Die
Die Verdrängerpumpe umfasst ein zylindrisches Pumpgehäuse
Zum Antrieb des Rotors
Die Verdrängerpumpe umfasst weiter zwei nicht näher dargestellte axiale Abdeckungen, die zur axialen Begrenzung der Kammer
Zur Unterteilung der Kammer
Um bei einem Stillstand des Rotors
Die Taschen
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 102008036273 A1 [0002] DE 102008036273 A1 [0002]
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110018394 DE102011018394A1 (en) | 2011-04-21 | 2011-04-21 | Displacement pump e.g. oil pump, for supplying oil to lubricate internal combustion engine of motor car, has rotor comprising recess inserted into chamber wall and retaining part of operating medium in chamber in standstill state of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110018394 DE102011018394A1 (en) | 2011-04-21 | 2011-04-21 | Displacement pump e.g. oil pump, for supplying oil to lubricate internal combustion engine of motor car, has rotor comprising recess inserted into chamber wall and retaining part of operating medium in chamber in standstill state of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102011018394A1 true DE102011018394A1 (en) | 2012-10-25 |
Family
ID=46967390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE201110018394 Withdrawn DE102011018394A1 (en) | 2011-04-21 | 2011-04-21 | Displacement pump e.g. oil pump, for supplying oil to lubricate internal combustion engine of motor car, has rotor comprising recess inserted into chamber wall and retaining part of operating medium in chamber in standstill state of pump |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102011018394A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425841A (en) * | 2018-05-31 | 2018-08-21 | 马长永 | Rotor and hydraulic pump with the rotor |
| WO2019137664A1 (en) * | 2018-01-12 | 2019-07-18 | Nidec Gpm Gmbh | Flow-optimised vane pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008036273A1 (en) | 2008-08-04 | 2010-02-11 | Schwäbische Hüttenwerke Automotive GmbH & Co. KG | Rotary piston pump with pockets for lubricant |
-
2011
- 2011-04-21 DE DE201110018394 patent/DE102011018394A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008036273A1 (en) | 2008-08-04 | 2010-02-11 | Schwäbische Hüttenwerke Automotive GmbH & Co. KG | Rotary piston pump with pockets for lubricant |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137664A1 (en) * | 2018-01-12 | 2019-07-18 | Nidec Gpm Gmbh | Flow-optimised vane pump |
| US11549508B2 (en) | 2018-01-12 | 2023-01-10 | Nidec Gpm Gmbh | Flow-optimised vane pump |
| CN108425841A (en) * | 2018-05-31 | 2018-08-21 | 马长永 | Rotor and hydraulic pump with the rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141101 |