DE102007000953A1 - Vane pump, has pressurized rear blade channels radially and inwardly shifted, and suction-side rear blade channel supplied with operating medium staying under pressure via inlet connection to exhibit throttled outlet connection - Google Patents
Vane pump, has pressurized rear blade channels radially and inwardly shifted, and suction-side rear blade channel supplied with operating medium staying under pressure via inlet connection to exhibit throttled outlet connection Download PDFInfo
- Publication number
- DE102007000953A1 DE102007000953A1 DE200710000953 DE102007000953A DE102007000953A1 DE 102007000953 A1 DE102007000953 A1 DE 102007000953A1 DE 200710000953 DE200710000953 DE 200710000953 DE 102007000953 A DE102007000953 A DE 102007000953A DE 102007000953 A1 DE102007000953 A1 DE 102007000953A1
- Authority
- DE
- Germany
- Prior art keywords
- vane pump
- suction
- connection
- rotor
- pump according
- 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- Withdrawn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
Classifications
-
- 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
- F04C2/3442—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 surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0854—Vane tracking; control therefor by fluid means
- F01C21/0863—Vane tracking; control therefor by fluid means the fluid being the working fluid
-
- 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
- F04C2210/00—Fluid
- F04C2210/40—Properties
- F04C2210/44—Viscosity
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/52—Conditions after a throttle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Flügelzellenpumpe gemäß dem Oberbegriff des Anspruches 1.The The invention relates to a vane pump according to the generic term of claim 1.
Flügelzellenpumpen der vorgenannten Art sind aus der Praxis bekannt. Ihre radial zwischen dem Rotor und dem diesen umschließenden Kurvenring gebildeten Arbeitskammern sind durch in Umfangsrichtung zueinander beabstandete Rotorflügel voneinander abgegrenzt, die in radialen Führungsschlitzen des Rotors radial verschieblich angeordnet sind. Radial außen liegen die Rotorflügel an der Innenfläche des Kurvenringes an. Die Größe der Arbeitskammern ändert sich über dem Umlauf des Rotors und die Exzentrizität der Innenfläche des Kurvenrings zum Rotor ist gegebenenfalls durch Verlagerung des Kurvenrings längs einer zur Rotorachse senkrechten Achse des Kurvenringes verstellbar, in Bezug auf die der Saug- und der Druckbereich der Flügelzellenpumpe einander gegenüberliegen. Über den saug- und druckseitigen Umfangsbereich erstrecken sich jeweils nierenförmige, in Überdeckung zu den Arbeitskammern liegende saug- und druckseitige Anschlussöffnungen, die in seitlichen Begrenzungen der Arbeitskammern vorgesehen sind. Diese können durch Seitenwände der Flügelzellenpumpe gebildet sein, zwischen denen der Kurvenring liegt und in denen die Welle des Rotors gelagert ist.Vane pumps The aforementioned type are known from practice. Your radial between the Rotor and this enclosing Curved ring formed working chambers are by in the circumferential direction mutually spaced rotor blades from each other delimited in radial guide slots of the rotor are arranged radially displaceable. Radial outside the rotor blades on the inner surface of the cam ring. The size of the working chambers changes above that Circulation of the rotor and the eccentricity of the inner surface of the Cam ring to the rotor is optionally by shifting the cam ring along one to the rotor axis vertical axis of the cam ring adjustable in relation to the suction and the pressure region of the vane pump opposite each other. On the suction and discharge side Peripheral region each extend kidney-shaped, in coverage to the working chambers lying suction and pressure side connection openings, in lateral Limits of the working chambers are provided. These can be through side walls the vane pump is formed between which lies the cam ring and in which the shaft of the rotor is stored.
Fußseitig zu den Führungsschlitzen der Rotorflügel, und damit nach innen gegenüber den saug- und druckseitigen Anschlussöffnungen versetzt, sind von den Führungsschlitzen überfahrene Hinterflügelkanäle vorgesehen, die über die Führungsschlitze mit den jeweils zugehörigen Arbeitskammern verbunden sind und in denen sich leckagebedingt ein zu diesen Arbeitskammern korrespondierender Druckaufbau ergibt. Ergänzend hierzu ist für den saugseitigen Hinterflügelkanal eine zusätzliche Druckversorgung vorgesehen, um in allen Betriebszuständen und unter allen Betriebsbedingungen, insbesondere auch unter Kaltstartbedingungen eine die Arbeitskammern gegeneinander abgrenzende dichtende Anlage der Rotorflügel an der Innenfläche des Kurvenringes sicherzustellen. Hieraus wiederum resultiert im Saugbereich ein erhöhter Verschleiß, dem durch eine kostenaufwändige, verschleißhemmende Beschichtung der Innenfläche des Kurvenringes oder auch der Rotorflügel begegnet wird.foot side to the guide slots the rotor blade, and thus towards the inside the suction and pressure side connection openings offset, are of the guide slots overrun Provided rear wing channels, the above the guide slots with the respective associated Working chambers are connected and in which due to leakage to this working chambers corresponding pressure buildup results. additional this is for the suction-side rear wing channel an additional Pressure supply provided to in all operating conditions and under all operating conditions, especially under cold start conditions a the working chambers against each other delimiting sealing system the rotor wing on the inner surface of the cam ring. This in turn results in the Suction area an elevated Wear, by a costly, anti-wear Coating of the inner surface the cam ring or the rotor blade is encountered.
Der Erfindung liegt die Aufgabe zugrunde, diesen im Saugbereich auftretenden Verschleiss in kostengünstiger Weise auszuschalten, oder zumindest zu verringern.Of the Invention is based on the object, these occurring in the suction area Wear in less expensive Switch off way, or at least reduce.
Gemäß der Erfindung wird dies mit den Merkmalen des Anspruches 1 erreicht, demzufolge der saugseitige Hinterflügelkanal mit einem gedrosselten Ablaufanschluss versehen wird.According to the invention This is achieved with the features of claim 1, consequently the suction-side rear wing channel is provided with a throttled drain port.
Dieser Aufbau gewährleistet einerseits den für eine sichere dichtende Anlage erforderlichen Druckaufbau im Hinterflügelkanal auch unter Kaltstartbedingungen, wenn aufgrund der höheren Viskosität der Zufluss von Arbeitsflüssigkeit aus den Arbeitskammern über die Führungsschlitze auf den Hinterflügelkanal verringert ist, da in entsprechender Weise der Ablauf aus dem Hinterflügelkanal gedrosselt ist. Bei geringer Viskosität ergibt sich ein entsprechender Effekt; der leckageabhängige Ölzulauf aus den Arbeitskammern über die Führungsschlitze auf den Hinterflügelkanal wird größer, und hierzu korrespondierend ergibt sich ein verstärkter Ablauf über den Ablaufanschluss.This Construction guaranteed on the one hand the for a secure sealing system required pressure build-up in Hinterflügelkanal even under cold start conditions, when due to the higher viscosity of the inflow of working fluid from the working chambers via the guide slots on the Hinterflügelkanal is reduced, since in a similar way the expiration of the Hinterflügelkanal is throttled. At low viscosity results in a corresponding Effect; the leak-dependent oil feed from the working chambers via the guide slots on the Hinterflügelkanal gets bigger, and Correspondingly, this results in an increased process over the Drain connection.
Die Folge ist eine Vergleichmäßigung der Abstützkräfte zwischen den Rotorflügeln und der Innenfläche des Kurvenringes verbunden mit der Möglichkeit, diese Abstützkräfte unter allen Betriebsbedingungen auf das saugseitig erforderliche Niveau abzustimmen und somit einen verschleißarmen Betrieb zu gewährleisten, ohne dass zusätzliche verschleißmindernde Beschichtungen erforderlich sind, oder unter Verwendung kostengünstiger Beschichtungsmaterialien.The The result is an equalization of the supporting forces between the rotor blades and the inner surface of the cam ring associated with the possibility of this support forces under all operating conditions to the required level on the suction side and thus a low-wear To ensure operation without that extra wear-reducing Coatings are required, or using less expensive Coating materials.
Grundsätzlich liegt es auch im Rahmen der Erfindung, eine entsprechende viskositätsabhängige Druckbeeinflussung für den der Druckseite der Flügelzellenpumpe zugeordneten Hinterflügelkanal vorzusehen.Basically It also in the context of the invention, a corresponding viscosity-dependent pressure influencing for the the pressure side of the vane pump associated rear wing channel provided.
In Ausgestaltung der Erfindung kann der saugseitige Hinterflügelkanal an zumindest einem, bevorzugt aber beiden Enden mit einem Zulaufanschluss versehen sein, wobei der gedrosselte Ablaufanschluss bevorzugt am gegenüberliegenden Ende bzw. im mittleren Bereich zwischen den endseitigen Zulaufanschlüssen vorgesehen wird.In Embodiment of the invention, the suction-side Hinterflügelkanal on at least one, but preferably both ends with an inlet connection be provided, wherein the throttled drain port preferably on opposite end or provided in the middle region between the end-side inlet connections becomes.
Weiter erweist es sich als vorteilhaft, wenn der jeweilige Zulaufanschluss über eine Drosselstelle mit dem Hinterflügelkanal verbunden ist.Further it proves to be advantageous if the respective inlet connection via a Throttle with the rear wing channel connected is.
Der Zulaufanschluss kann seinerseits über einen Anschluss an die Druckseite der Flügelzellenpumpe gespeist werden, oder über eine separate Druckquelle.Of the Inlet connection can in turn via a connection to the Pressure side of the vane pump be fed, or over a separate pressure source.
Für den gedrosselten Ablaufanschluss erweist sich eine Verbindung zur Saugseite der Flügelzellenpumpe, insbesondere zum der Flügelzellenpumpe zugeordneten Vorratsbehälter als zweckmäßig.For the throttled Drain connection proves a connection to the suction side of the vane pump, in particular to the vane pump associated reservoir as appropriate.
Der gedrosselte Ablaufanschluss kann aber auch auf die Lagerung der Rotorwelle geführt werden, um deren Schmierung zu verbessern, wobei die Gestaltung des Lagerbereiches der Rotorwelle auch die Möglichkeit eröffnet, die Drosselung des Ablaufanschlusses über die Lagerspiele der Welle zu realisieren.The throttled drain connection can also be performed on the bearing of the rotor shaft to improve their lubrication, the design of the bearing area of the rotor shaft also opens up the possibility of throttling the process Connection to realize the bearing games of the shaft.
Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus den Ansprüchen. Ferner wird die Erfindung nachfolgend anhand einer schematisierten Darstellung einer Flügelzellenpumpe erläutert.Further Details and features of the invention will become apparent from the claims. Furthermore, will the invention below with reference to a schematic representation a vane pump explained.
Die
in einer schematisierten Schnittdarstellung gezeigte Flügelzellenpumpe
Der
in nicht dargestellter Weise angetriebene Rotor
Entsprechend
dem exzentrischen Versatz zwischen der Drehachse
Zur
Versorgung der Arbeitskammern
Radial
innen liegen die Führungsschlitze
Die
Rotorflügel
Um
im Saugbereich auch in Berücksichtigung
betriebsbedingt unterschiedlicher Viskositäten des hydraulischen Arbeitsmediums,
insbesondere Hydrauliköl,
eine dichtende Anlage der Rotorflügel
Die
Verbindung der Zulaufanschlüsse
Eine
derartige Ausgestaltung ermöglicht auch
bei betriebsbedingt hoher Viskosität des hydraulischen Arbeitsmediums, beispielsweise
Hydrauliköl,
eine hinreichend dichte Anlage der Rotorflügel
Um
dem zu begegnen ist der saugseitige Hinterflügelkanal
Durch
die erfindungsgemäße Lösung werden
des Weiteren auch die Reibverluste der Flügelzellenpumpe reduziert, und
es kann die Drosselung des Ablaufanschlusses
Erfindungsgemäß wird somit
durch die Zuordnung eines Ablaufanschlusses
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710000953 DE102007000953A1 (en) | 2007-09-24 | 2007-09-24 | Vane pump, has pressurized rear blade channels radially and inwardly shifted, and suction-side rear blade channel supplied with operating medium staying under pressure via inlet connection to exhibit throttled outlet connection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710000953 DE102007000953A1 (en) | 2007-09-24 | 2007-09-24 | Vane pump, has pressurized rear blade channels radially and inwardly shifted, and suction-side rear blade channel supplied with operating medium staying under pressure via inlet connection to exhibit throttled outlet connection |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007000953A1 true DE102007000953A1 (en) | 2009-04-09 |
Family
ID=40417773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710000953 Withdrawn DE102007000953A1 (en) | 2007-09-24 | 2007-09-24 | Vane pump, has pressurized rear blade channels radially and inwardly shifted, and suction-side rear blade channel supplied with operating medium staying under pressure via inlet connection to exhibit throttled outlet connection |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007000953A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1957029A1 (en) * | 1968-11-14 | 1970-06-04 | Sperry Rand Corp | Pressure medium energy conversion device |
DE2324002A1 (en) * | 1972-05-10 | 1973-11-22 | Abex Corp | HYDRAULIC VANE PUMP |
DE3212363A1 (en) * | 1981-04-23 | 1983-02-10 | General Motors Corp., Detroit, Mich. | SELF-STARTING WING PISTON PUMP |
DE4442083A1 (en) * | 1993-11-26 | 1995-06-08 | Aisin Seiki | Vane pump for generating oil pressure for vehicle steering servo |
DE10247518A1 (en) * | 2001-10-15 | 2003-04-17 | Luk Automobiltech Gmbh & Co Kg | Vane pump, especially for hydraulic oil at a power assisted steering system, has grooves at the suction kidneys for an additional flow path to the pressure zone |
-
2007
- 2007-09-24 DE DE200710000953 patent/DE102007000953A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1957029A1 (en) * | 1968-11-14 | 1970-06-04 | Sperry Rand Corp | Pressure medium energy conversion device |
DE2324002A1 (en) * | 1972-05-10 | 1973-11-22 | Abex Corp | HYDRAULIC VANE PUMP |
DE3212363A1 (en) * | 1981-04-23 | 1983-02-10 | General Motors Corp., Detroit, Mich. | SELF-STARTING WING PISTON PUMP |
DE4442083A1 (en) * | 1993-11-26 | 1995-06-08 | Aisin Seiki | Vane pump for generating oil pressure for vehicle steering servo |
DE10247518A1 (en) * | 2001-10-15 | 2003-04-17 | Luk Automobiltech Gmbh & Co Kg | Vane pump, especially for hydraulic oil at a power assisted steering system, has grooves at the suction kidneys for an additional flow path to the pressure zone |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140925 |