EP2960511A2 - Aile dotée d'un joint axial - Google Patents

Aile dotée d'un joint axial Download PDF

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Publication number
EP2960511A2
EP2960511A2 EP15170069.7A EP15170069A EP2960511A2 EP 2960511 A2 EP2960511 A2 EP 2960511A2 EP 15170069 A EP15170069 A EP 15170069A EP 2960511 A2 EP2960511 A2 EP 2960511A2
Authority
EP
European Patent Office
Prior art keywords
wing
insert
pump
opening
cover
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Withdrawn
Application number
EP15170069.7A
Other languages
German (de)
English (en)
Other versions
EP2960511A3 (fr
Inventor
Emin Ahmeti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schwaebische Huettenwerke Automotive GmbH
Original Assignee
Schwaebische Huettenwerke Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schwaebische Huettenwerke Automotive GmbH filed Critical Schwaebische Huettenwerke Automotive GmbH
Publication of EP2960511A2 publication Critical patent/EP2960511A2/fr
Publication of EP2960511A3 publication Critical patent/EP2960511A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F01C21/0881—Construction of vanes or vane holders the vanes consisting of two or more parts
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F04C2/3448—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 with axially movable vanes
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity
    • F05C2251/046—Expansivity dissimilar

Definitions

  • the invention relates to a wing for a vane pump, preferably a vacuum pump, wherein the wing on at least one of its end faces, which face a lid or bottom of a pump chamber of the vane pump having an opening in which an insert is arranged, by means of a clamping device against the lid and / or the floor is pressed.
  • the invention further relates to a vane pump with a pump body made of a first material having a first expansion coefficient and a wing made of a second material having a second coefficient of expansion to the first different.
  • the invention relates to a method for increasing an evacuation performance of a vacuum pump at low and / or higher temperatures.
  • the vane of a vacuum pump may be formed of a plastic, while the pump body and thus also the pump chamber is made of a metal, for example aluminum. Both materials used in this case generally have different coefficients of expansion. This may result in the heating or cooling of the pump to deviations in the dimensions of the two parts, which affect the separation of the suction side and pressure side in the pump chamber at least, since the oil otherwise used for sealing is no longer sufficient to reliably seal the gap.
  • the invention relates to a wing for a vane pump, in particular a vacuum pump.
  • the wing comprises a wing body of plastic and / or metal, which has an opening on at least one end face, which faces a cover or bottom of a pump chamber of the vane pump.
  • an insert is arranged and guided axially movable.
  • a tensioning device disposed in the wing body biases the insert towards the bottom or the lid.
  • the tensioning device can bias the insert axially in the direction of the bottom or the lid of the pump chamber.
  • the insert forms in the installed state of the wing with the axially facing bottom or lid, ie a respective end face of the pump chamber, an axial sealing gap and thus reduces leakage at the end face of the wing on which the insert is arranged.
  • axial refers to the axis of rotation of a rotor of the vane pump and denotes a direction or extent parallel to this axis of rotation.
  • the rotor can translate the wing in a direction transverse to the axis of rotation.
  • the wing on the rotor for example, be pivotally mounted.
  • the opening in which the insert is arranged is axially facing the lid or the bottom of the pump chamber.
  • the insert can also be made of plastic and / or metal or at least comprise parts made of a plastic. It can consist of several layers and / or several separate or connected parts.
  • the insert may have a base body formed of a plastic, and a metal foil or lacquer applied to the base body may form a surface of the insert. But it can also consist of several layers and be formed in one piece or in one piece urgeformt of a material as a compact body.
  • the material may be a low elastically deformable material, with no or very little abrasion and good sliding properties, which can be optimally adapted to the shape of an inner surface of the bottom or lid, with as little or no friction as possible , which brake a rotation of the wing generated.
  • the shape of the insert can be chosen so that the insert touches the floor or lid only linearly, for example by a rounding or sharpening of the lid or the floor facing surface.
  • the wing may have a wedge-gap geometry on the face side for promoting a hydraulic lubrication pressure build-up in order to avoid the occurrence of mixed friction states during operation. The aim is to reduce friction between the blade end face and the radial inner wall of the pumping chamber and / or the wear on at least one of the sliding surfaces on the wing or the pump chamber radial wall.
  • the insert may be formed of an elastically non-deformable material.
  • the abutment surface of the insert for abutment with the bottom or lid can also be lip-shaped, with at least one single straight lip or at least one circumferential lip, the at least one circumferential lip enclosing an area containing, for example, lubricant of the pump or fluid to be delivered, For example, oil can absorb further frictional forces.
  • the surfaces of the wing and / or the corresponding mating surfaces may be coated in the interior of the opening in order to ensure a possible resistance-free sliding of the insert in the wing body.
  • This engagement region can simultaneously form a guide region, in which the insert in the wing body is preferably guided tightly in order to prevent tilting or bending of the insert during operation of the pump.
  • the insert itself can be or be a compact body Hollow profile, which may have reinforcing ribs to increase the rigidity of the insert.
  • the hollow profile and the reinforcing ribs may be integrally formed, for example, in an injection molding or sintering process.
  • the surface forming the outside of the insert can subsequently be coated or be provided with a suitable surface already falling from the tool.
  • the insert may further comprise a wear control, for example a conductive layer, which, in good time before reaching a critical thickness of the insert, for example due to abrasion, generates corresponding information in, for example, a central computer of an automobile, which is then read out at the next inspection can be.
  • a wear control for example a conductive layer, which, in good time before reaching a critical thickness of the insert, for example due to abrasion, generates corresponding information in, for example, a central computer of an automobile, which is then read out at the next inspection can be.
  • the wing may be formed of a metal, but it is preferably formed of a plastic.
  • the plastic may in particular be a polymer.
  • the plastic may be a fibrous or otherwise reinforced plastic.
  • the wing or wing body may have an opening at each of said end faces. In each of the openings can then be arranged in each case an insert.
  • the wing body between the two openings can in particular be designed as a hollow body.
  • the hollow body may have internal reinforcing ribs for stabilization, which prevent the blade body from being deformed or collapsing under the pressure of the fluid to be delivered.
  • the reinforcing ribs may be rectilinear ribs which are arranged parallel to one another and / or intersect at a right angle or, for example, form a honeycomb structure.
  • the reinforcing ribs may be formed separately from the wing body and subsequently inserted into the wing body and connected thereto.
  • the reinforcing ribs may be integrally formed with the wing body or formed in one piece.
  • the wing body with or without the reinforcing ribs can also be constructed of two half-shells, which are connected to each other in a positive, force and / or material fit after the molding process and / or the installation of the clamping device and / or the insert / inserts.
  • the ribs and spacers in the form of columns can cause the stiffening of the wing body.
  • the structure of the wing may have geometries that guide, fix and / or position the tensioning device and / or inserts relative to the wing.
  • the leading and / or trailing side (s) in the direction of rotation of the blade may have a stabilizing shape, for example, wave-shaped with sinusoidal, rectangular, triangular or sawtooth waves.
  • the tensioning device may comprise at least one spring element or be formed by a pressurization seimage, which acts on the insert with a pressurized fluid.
  • a pressurization seimage which acts on the insert with a pressurized fluid.
  • a gas-filled cylinder may serve with a piston, or the pressurized fluid may be directed from the pressure side of the pump into the interior of the blade.
  • the pressurized fluid may alternatively be provided by another unit, for example an internal combustion engine or a separate source.
  • the spring element may consist of an elastically deformable solid body or at least have a leaf, spiral or other compression spring.
  • two, three or more spring elements can be arranged side by side and / or one behind the other.
  • the respective spring element may be an axially loaded on compression coil spring.
  • the wing body may have a guide structure which surrounds the respective spring element in execution of the respective spring element as a helical spring or protrudes and in this way supports transversely to the axial direction and limits the possibility of evasion transverse to the axial direction.
  • the guide structure may in particular be a guide sleeve.
  • the guide structure may be an insert element or may be formed directly by the wing body.
  • each of these inserts can have a separate tensioning device, which is supported on a structure of the wing with an end pointing away from the insert.
  • both inserts may be biased together by a common tensioning device in their respective direction. That is, in this case, the tensioning device is disposed between the two inserts in the wing body and is supported on both inserts.
  • the clamping device can be firmly connected to both inserts, so that the clamping device and the inserts form a component that can be entered in its entirety through one of the openings in the wing.
  • the wing body may in particular surround the at least one opening or the respective opening and thereby also the insert or the respective insert.
  • the wing body may guide the insert or the respective insert axially slidably.
  • the insert or respective insert may in particular be guided in an axially sliding manner on an inner circumferential surface of the wing body forming the respective opening.
  • the mutually guide surfaces, on the one hand the surfaces of the respective insert and on the other hand, the inner peripheral surface of the wing body, in particular, can form a sealing gap with each other.
  • the sealing gap preferably runs completely, over an angle of 360 °, around the insert.
  • the respective insert can slide on the axially leading inner peripheral surface with a tight fit to reduce leakage in the sliding guide.
  • the vane which is made of a plastic, for example, may have a wall thickness equal to or less than 1.5 mm, at least in the region where the opening in the vane is formed.
  • the thickness of the wing can be between 1 mm and 3 mm.
  • the wing preferably has a maximum point thickness of 2 mm, while the average thickness of the wing wall is less than 2 mm, particularly preferably less than 1.8 mm.
  • the use is in particular a sealing strip made of a solid material or a hollow structure, which abuts the lid and / or the bottom during operation of the pump and reliably separates a pressure side of the pump from a suction side of the pump. Due to the above-described features of the wing with / the axially movable sealing strip / n this reliable separation of suction and pressure side is guaranteed even at higher temperatures of more than 50 ° C.
  • the medium to be pumped such as oil
  • the medium to be pumped has a lower viscosity with increasing temperature, that with a material having higher
  • Thermal expansion coefficient here, for example, the wing or wing insert made of plastic, expand more than the pump chamber of, for example, metal. That is, the face of the wing, respectively the insert "grow" relative to the pump chamber, whereby the end face is pressed with an increasing pressure against the radial inner wall of the pump chamber. This higher pressure causes higher frictional forces, which slows down the wing.
  • the fact that the insert can retract into the wing, this increasing pressure can be compensated, so that a pressure of the end face to the pump chamber inner wall despite changing temperature in the pump chamber has a substantially constant value.
  • the tensioning device can press the wing or insert against the pump chamber wall, so that the pressure of the wing on the pump chamber wall remains substantially constant and the gap does not open despite increasing coefficients of thermal expansion in the pump chamber.
  • Another aspect relates to a vane pump with a pump body made of a first material having a first expansion coefficient and at least one wing made of a second material having a second, different from the first coefficient of expansion coefficients of expansion.
  • the vane comprises a vane body having at least one opening on an end side facing a bottom or a lid of a pump chamber of the pump and an insert arranged in the opening or openings, which is pretensioned by means of at least one tensioning device in the direction of the bottom or lid /are.
  • the vane pump includes a pump housing, a stator and a rotor.
  • the stator may be at least partially formed by the pump housing and forms a pump chamber having an inlet and an outlet for the fluid to be pumped.
  • the rotor is arranged eccentrically in the stator to a peripheral wall surrounding the rotor and can be rotated about an axis of rotation relative to the stator.
  • the stator can be formed directly from the pump housing or an insert structure arranged in the pump housing.
  • the pump chamber is or includes the pump chamber.
  • the pump chamber has the peripheral wall surrounding the rotor and the wing or wings, an end wall formed by the bottom of the pump chamber, and an end wall formed by the cover, the end walls lying axially opposite each other over the peripheral wall.
  • An actuator may be reciprocated in the pump housing relative to the rotor and form the peripheral wall to change the eccentricity between the peripheral wall and the rotor and thereby a specific delivery volume of the pump can.
  • the rotor includes a shaft connected to at least one rotor blade or wing.
  • the vane has a leading and a trailing side in the direction of rotation and four front or side walls of two running on a tread formed for example by a Statordochswand, while at least one of the other two end faces on a side wall defining the pump chamber, for example a Bottom or lid of the pump chamber, at least largely sealingly abuts and expires. This prevents the suction side of the pump from being shorted to the pressure side of the pump, which would make it impossible to change the pressure of the fluid being transported by the pump.
  • the expansion coefficient of the blade may be greater than the expansion coefficient of the pump body.
  • the pump body made of a metal such as aluminum, while the wing is made of a plastic.
  • the wing may in particular be the above-described wing. It is advantageous if the expansion coefficients of the wing body and the insert are as equal as possible, so that no gap forms in the region of the engagement of the insert in the wing body through which the medium to be conveyed can get into the interior of the wing.
  • the vane pump may be a vacuum pump, for example the vacuum pump of an automobile powered by an internal combustion engine or a separate electric motor.
  • the vacuum pump can serve, for example, for venting a brake, or provide another unit with a vacuum.
  • Another aspect relates to a method for increasing an evacuation performance of a vane pump with a pump body made of a first material having a first expansion coefficient and at least one wing made of a second material having a second, different from the first expansion coefficient expansion coefficient.
  • At least one tensioning device and at least one insert are used in the wing.
  • the wing is rotatably arranged with the clamping device and the insert in a pump chamber of the vane pump, so that the insert or the inserts are pressed by the clamping device against a lid and / or a bottom of the pump chamber of the pump.
  • Occurring expansion differences between the pump body and the wing are compensated by the axially movable inserts, since the insert / the inserts is pressed against the lid and / or the bottom even at low temperatures sealingly / are. This is especially true at temperatures below 50 ° C.
  • FIG. 1 shows an embodiment of a wing 1 according to the invention, here in a sectional view through the wing 1.
  • the wing 1 has a wing body 2.
  • the wing body 2 comprises two end faces 3, 4, which face, in an unillustrated installation of the wing in a pump chamber of a vane pump, a lid of the pump chamber or a bottom of the pump chamber.
  • the wing body 2 has an opening 5, in which an insert 6 or a sealing strip 6 is movably guided in the axial direction.
  • a clamping device 7, 8 is arranged in the interior of the wing body 2, which pretensions the insert 6 in the direction of the opening 5. The insert 6 can be pressed into the opening 5 against the force of the clamping device 7, 8.
  • the clamping device 7, 8 is formed by spring elements 7, 8.
  • the spring elements 7, 8 are coil springs which (in the FIG. 1 not shown) may be surrounded by guide sleeves or by a projecting into the spring element 7, 8 pins, preferably made of plastic, can be performed in order to prevent lateral deflection of the spring elements 7, 8 under pressure.
  • the spring elements 7, 8 are supported on their side facing away from the insert 6 on a reinforcing rib 9 of a reinforcing structure for the wing body 2 from. Shown are further reinforcing ribs 10, which extend transversely to the reinforcing rib 9.
  • the wing body 2 may be formed at least partially as a hollow structure and the reinforcing structure serves to prevent a collapse of the wing body 2 under pressure.
  • the insert 6, in the region in which it is or may be engaged with the opening 5, has a coating which, together with a smooth surface of the inner walls of the opening 5 (with or without coating), creates a frictional resistance between the outer surfaces of the insert 6 and the inner walls of the opening 5 keeps small.
  • each of the two end faces 3, 4 have an opening 5, in each of which an insert 6 is arranged.
  • each of the two inserts 6 each a clamping device 7, 8 be assigned, with both clamping devices 7, 8 can be supported on the reinforcing rib 9.
  • the two inserts 6 can be biased by a single clamping device 7, 8 in the direction of the cover or bottom, wherein the clamping device 7, 8 can be supported on both inserts 6 in this case.
  • FIG. 2 shows in a plan view of the wing 1 the insert 6. Shown is the wing body 2 respectively the wall of the wing body 2, which surrounds the opening 5 and forms a receptacle and guide for the insert 6.
  • the insert 6 may be formed as a solid body or as a hollow profile. If it is designed as a hollow body, it may have reinforcing ribs, which are not shown in the interior, which stabilize and stiffen the insert 6.
  • the insert 6 may be made in one piece, for example, in an injection molding process.
  • the insert 6 may have a coating in the region which bears against the lid or the bottom, which is, for example, harder and / or more abrasion-resistant and / or has better sliding properties than the plastic from which the insert 6 is sprayed.
  • the four peripheral sides of the insert 6 and / or the surfaces of the inner walls of the opening 5 may have a corresponding coating, so that frictional forces between the outer sides of the insert and inner walls of the opening 5 in an engagement region of the insert 6 are kept small in the opening.
  • a wall thickness of the wing body 2 in the region of the opening 5 should not exceed a value of 2 mm if the wing 1 is formed as a hollow body and has two inserts 6.
  • the thickness or thickness of the profile wall is similar to the wall thickness, that is, it preferably has a value of 1.5 mm or greater

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP15170069.7A 2014-06-02 2015-06-01 Aile dotée d'un joint axial Withdrawn EP2960511A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014107735.0A DE102014107735B4 (de) 2014-06-02 2014-06-02 Flügel mit axialer Abdichtung

Publications (2)

Publication Number Publication Date
EP2960511A2 true EP2960511A2 (fr) 2015-12-30
EP2960511A3 EP2960511A3 (fr) 2016-02-17

Family

ID=53298183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15170069.7A Withdrawn EP2960511A3 (fr) 2014-06-02 2015-06-01 Aile dotée d'un joint axial

Country Status (4)

Country Link
US (1) US20150345492A1 (fr)
EP (1) EP2960511A3 (fr)
CN (1) CN105317683A (fr)
DE (1) DE102014107735B4 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017117988A1 (de) * 2017-08-08 2019-02-14 Kameliya Filipova Ganeva Pneumatische oder hydraulische Vorrichtung
DE102017121334A1 (de) * 2017-09-14 2019-03-14 Danfoss Power Solution GmbH & Co OHG Steuerscheibe mit erhöhter Steifigkeit und Verfahren zur Herstellung einer solchen Steuerscheibe
DE102019118139A1 (de) * 2019-07-04 2021-01-07 Gebr. Becker Gmbh Drehschieber-Aggregat sowie Verfahren zur Überwachung des Verschleißes eines Schiebers in einem Drehschieber-Aggregat
DE102020122522A1 (de) * 2020-08-28 2022-03-03 Schwäbische Hüttenwerke Automotive GmbH Schraubenfeder für eine Pumpe mit verstellbarem Fördervolumen

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US20150345492A1 (en) 2015-12-03
DE102014107735A1 (de) 2015-12-03
EP2960511A3 (fr) 2016-02-17
CN105317683A (zh) 2016-02-10
DE102014107735B4 (de) 2018-04-19

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