EP3279477A1 - Pompe à? dé?placement positif ayant un rotor à pales - Google Patents

Pompe à? dé?placement positif ayant un rotor à pales Download PDF

Info

Publication number
EP3279477A1
EP3279477A1 EP17184197.6A EP17184197A EP3279477A1 EP 3279477 A1 EP3279477 A1 EP 3279477A1 EP 17184197 A EP17184197 A EP 17184197A EP 3279477 A1 EP3279477 A1 EP 3279477A1
Authority
EP
European Patent Office
Prior art keywords
channel
rotor
fluid
pump according
radially
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.)
Granted
Application number
EP17184197.6A
Other languages
German (de)
English (en)
Other versions
EP3279477B1 (fr
Inventor
Ricardo STARACE
Marco ANSALONE
Rajesh Rao JAGANATHRAO RAJENDRAN
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.)
VHIT SpA
Original Assignee
VHIT SpA
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 VHIT SpA filed Critical VHIT SpA
Publication of EP3279477A1 publication Critical patent/EP3279477A1/fr
Application granted granted Critical
Publication of EP3279477B1 publication Critical patent/EP3279477B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
    • 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
    • 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
    • F04C2/3446—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 more than one line or surface

Definitions

  • the present invention relates to a positive displacement pump with a blade rotor.
  • the pump is preferably but not necessarily used for lubricating motors.
  • Positive displacement pumps with blade rotors comprise a rotor provided with radial slots in which the blades are positioned.
  • the pump further comprises an aspirating conduit, a fluid delivery conduit and a stator internally of which the rotor rotates.
  • the rotor is arranged eccentrically with respect to the stator. During use the blades are pushed against the stator.
  • the space interposed between two blades is usually defined the "compartment".
  • the compartment rotates together with the rotor.
  • the compartment When the compartment is placed in communication with the aspirating conduit it increases its own volume; when the compartment is placed in communication with the delivery conduit the compartment reduces its own volume, forcing the fluid to exit from the stator.
  • the stator comprises an annular collar which identifies a chamber housing the rotor.
  • This chamber is delimited not only by the external collar but also by two opposite walls in which an inlet mouth and an outlet mouth of the liquid are fashioned.
  • the collar can comprise, in proximity of the inlet mouth, a channel which facilitates introduction of the fluid. This channel, where present, reduces the axial thickness of the collar of the stator.
  • the technical task on which the present invention is based is to provide a positive displacement pump with a blade rotor which enables increasing the quantity of fluid that can be introduced internally of the stator while at the same time optimising the fluid-dynamics.
  • a further object of the present invention, strictly related to the preceding object, is to improve the cavitation behaviour of the pump and the fluid-dynamic performance thereof.
  • a further object of the present invention is to reduce noise levels.
  • reference numeral 1 denotes a variable-volume positive displacement pump which interacts with a fluid (a liquid), for example lubricating oil.
  • the rotor 2 can rotate about a rotation axis 20.
  • the rotor 2 comprises a plurality of slots 33 each housing one of said blades 32. Typically the slots 33 extend radially.
  • the pump 1 further comprises a stator 3.
  • the stator 3 comprises a collar 30 internally of which the rotor 2 can rotate.
  • the collar 30 is also known in the technical sector as the external ring.
  • the collar 30 surrounds the rotor 2, in particular surrounds the rotation axis 20.
  • the stator 3 defines a housing chamber 34 of the rotor 2.
  • the chamber 34 is advantageously cylindrical.
  • the pump 1 comprises a first and a second plane 311, 312 (see for example figure 11 ) which are transversal to the rotation axis 20 and which occlude the chamber 34, together with the collar 30.
  • the rotor 2 and the stator 3 are eccentric.
  • the stator 3 and a rotation axis 20 of the rotor 2 are mobile with respect to one another so as to vary the volume of the pump 1.
  • the position of an axis of cylindrical symmetry of the chamber 34 can be varied relative to the position of the rotation axis 20 of the rotor 2.
  • the rotation axis 20 preferably remains fixed and the position of the stator 3 is modified.
  • the stator 3 can advantageously rotate about a hinged zone or can translate.
  • the stator 3 (collar 30) defines at least a first channel 4 which contributes to an introduction of fluid between the rotor 2 and the stator 3.
  • the first channel 4 is a dip or a groove.
  • the first channel 4 in a zone in which it is fashioned, reduces an axial thickness of the collar 30 (the axial thickness of the collar is assessed axially, i.e. parallel to the rotation axis 20).
  • the pump 1 appropriately comprises a supply conduit 9 of the fluid which opens into the chamber 34.
  • the supply conduit 9 opens into the chamber 34 at least through an aspirating opening 90 afforded in the first plane 311.
  • the first channel 4 faces and is located at said aspirating opening 90.
  • the supply conduit 9 comprises a deflector 900 which generates a first and a second lane 901, 902 for the fluid current.
  • the first and second lane 901, 902 diverge from one another.
  • the first and/or the second lane 901, 902 have a reduction of the transversal crossing section.
  • This deflector 900 is a narrowing member of the conduit 9, which functions as a distributor of the fluid along the first and the second lane 901, 902, facilitating the entrance of the fluid to the chamber 34.
  • the aspirating opening 90 extends between a first and a second end 903, 904 (see for example figure 13 ); the first and the second end 903, 904 determine the phasing of the pump 1.
  • the first end 903 faces a circumferential portion of the rotor 2 which is more downstream than the circumferential portion faced by the second end 904 (in this case upstream and downstream are calculated with respect to the rotation direction of the rotor 2).
  • the first lane 901 terminates at the first end 903 of the aspirating opening 90; the second lane 902 terminates at the second end 904 of the aspirating opening 90.
  • the first lane 901 has a larger passage section with respect to the second lane 902 (see for example figure 13 ).
  • the first lane 901 reduces the misalignment of the fluid with the fluid present in the chamber 34.
  • the first lane 901 increases a component of the fluid motion which is orientated towards the rotation direction of the rotor 2.
  • the component of motion of the fluid perpendicular to a radial direction or in equivalent terms tangential to an internal circumference of the chamber 34 and coaxial to the rotation axis 20) increases.
  • the second lane 902 enables not altering the phasing of the pump 1 and directing the smallest possible quantity of fluid into the volume.
  • the supply conduit 9 is profiled so as to eliminate or in any case minimise the presence of live edges. This is so as to most effectively guide the fluid, reducing fluid-dynamic losses and therefore the possibility of incurring cavitation phenomena.
  • the first channel 4 advantageously directs the fluid so as to reduce a misalignment between a first flow of the fluid which comes from said first channel 4 and a second flow of fluid which intercepts the first flow and transits, drawn by the rotor 2, between the first channel 4 and the rotor 2.
  • the second flow is the short-circuited fluid already present in the stator 3.
  • the first flow of fluid is denoted by reference letter "a” and the second flow of fluid is denoted by reference letter "b".
  • the first channel 4 increases the fluid component orientated in the rotation direction of the rotor 2 (in particular the tangential component perpendicular to the radial direction).
  • the first channel 4 comprises a first and a second wall 41, 42 which are reciprocally facing. There is advantageously at least a straight segment which connects the first and the second wall 41, 42 without intercepting the rotor 2.
  • the fact that the first and the second wall 41, 42 are facing one another is important as it means that the distance between the first and the second wall 41, 42 is limited; this enables appropriately guiding and directing the fluid (if the distance between the first and the second wall 41, 42 were excessive the first channel 4 would not succeed in effectively channelling the fluid in the desired direction).
  • the first channel 4 comprises a base surface 43 for connecting the first and the second wall 41, 42.
  • the first and the second wall 41, 42 are connected without live edges to the base surface 43.
  • a live edge is present between the base surface 43 and the first wall 41; likewise a live edge is present between the base surface 43 and the second wall 42.
  • the collar 30 comprises an annular surface 31 which faces and surrounds the rotor 2.
  • the minimum distance between the first and the second wall 41, 42 measured along the annular surface 31 is less than 1/3 of the minimum length of a line which, lying entirely on the annular surface 31, surrounds the rotor 2.
  • the minimum distance between the first and the second wall 41, 42 measured along a circumference defined by the annular surface 31 is less than 1/3 of the circumference.
  • the blades 32 are advantageously radially interposed between a centring ring 5 and the annular surface 31.
  • the centring ring 5 limits the maximum insertion of the blades 32 in the slots 33.
  • the centring ring 5 advantageously remains coaxial to the annular surface 31 as it is in contact with the radially more internal part of the blades 32.
  • the second wall 42 can be connected to the annular surface 31.
  • the second wall 42 and the annular surface 31 are advantageously tangential at a common join zone 91 (indicated for example in figure 3 ).
  • the annular surface 31 extends along a circle.
  • the first channel 4 defines an outlet mouth 44 of the fluid in a zone interposed between the rotor 2 and the stator 3.
  • the mouth 44 is preferably subtended by two planes 93, 94 which between them form an angle of less than 100 ° (see for example figures 5 and 9 ).
  • the intersection between the two planes 93, 94 lies along a straight line that:
  • outlet mouth 44 involves a limited portion of a circumferential extension of the collar 30 enables directing the operating fluid into a predetermined zone.
  • the first channel 4 When displacing from a radially more external position 991 towards a radially more internal position 992, the first channel 4 advantageously comprises a ramp 99.
  • the ramp 99 reduces the depth of the first channel 4 (the depth is measured parallel to the rotation axis 20).
  • the depth of the first channel 4, measured parallel to the rotation axis 20 is on average smaller at the outlet mouth 44 than at the radially more external opening 450.
  • the depth of the first channel 4 (measured parallel to the rotation axis 20 of the rotor 2) is nil or in any case tends to 0 at the annular surface 31.
  • the extension of the annular surface 31 able to face the end of the blades 32 is increased, thus increasing the volumetric performance, the fluid-dynamic performance and the pump 1 performance.
  • the depth of the first channel 4 is progressively reduced.
  • the base surface 43 when displacing from a radially more external position towards a radially more internal position, progressively reduces the depth of the first channel 4. This advantageously occurs over the whole radial extension of the first channel 4.
  • line 95 indicates a change of slope.
  • the axial thickness of the collar 30 progressively increases as it passes from the first to the second wall 41, 42.
  • the axial thickness of the collar 30 at the base surface 43 progressively increases as it passes from the first to the second wall 41, 42. This also enables better guiding of the fluid, directing it as schematically indicated in figure 7 .
  • the first channel 4 crosses the collar 30 between a radially more external opening 450 and the radially more internal outlet mouth 44.
  • the radially more external opening 450 comprises a guide entry 451 for inlet of the fluid. It is advantageously fashioned along a perimeter edge of the opening 450.
  • This guide entry 451 further facilitates the inlet of the fluid.
  • the guide entry 451 comprises a convexity.
  • the guide entry 451 comprises an arched bevel.
  • the collar 30 develops in thickness in a radial direction.
  • the thickness of the collar 30 is not constant along the first channel 4. As for example illustrated by way of example in figure 5 , the thickness is smaller in a predetermined section interposed between the first and the second wall 41, 42. The thickness progressively increases as it displaces towards the first and the second wall 41, 42.
  • the collar 30 comprises a first and a second face 301, 302 which are at least in part parallel to one another and between which the annular surface 31 facing and surrounding the rotor 2 extends.
  • the first and second wall 301, 302 are preferably flat.
  • the first channel 4 crosses the collar 30 radially.
  • the outlet mouth 44 is defined by an opening afforded on the annular surface 31.
  • the depth of the first channel 4 tends to nil at the annular surface 31.
  • the first channel 4 starting from the first face 301, projects towards the inside of the collar 30, reducing the axial thickness thereof in that portion (note that as mentioned in the foregoing the axial thickness of the collar, as indicated in the foregoing, should be measured axially i.e. parallel to the rotation axis 20).
  • first and the second wall 41, 42 are reciprocally asymmetric.
  • a terminal portion, radially more internal, of the first and the second wall 41, 42, are reciprocally convergent.
  • first wall 41 between the radially more external opening 450 and the outlet mouth 44, extends along a first straight direction 410.
  • the second wall 42 between the radially more external opening 450 and the outlet mouth 44, extends along an arched line.
  • the first wall 41 and a terminal portion of the second wall 42 diverge.
  • a particular application of the present pump 1 is linked to the lubrication of internal combustion engines of vehicles.
  • the collar 30 advantageously comprises a second channel 6 which contributes to an introduction of fluid between the rotor 2 and the stator 3.
  • the first and second channel 4, 6 are advantageously reciprocally symmetrical. This symmetry is observed with respect to an intermediate plane perpendicular to the rotation axis 20 of the rotor 2.
  • the second channel 6 involves only a part of the collar 30 and, where present, reduces the axial thickness of the collar 30 (as previously explained the axial thickness of the collar 30 should be measured parallel to the direction of the rotation axis 20).
  • the second channel 6 directs the fluid so as to reduce a misalignment between the first flow of the fluid and the second flow of fluid, already defined in the foregoing, (i.e. a flow that transits in the stator 3 in front of the first channel 4 and is drawn by the rotor 2).
  • the second channel 6 advantageously comprises two lateral walls 96, 97 and a connecting surface 98 of the two lateral walls 96, 97. While radially displacing from a more external position to a more internal position, the base surface 43 of the first channel 4 and the connecting surface 98 of the second channel 6 are reciprocally divergent.
  • the collar 30 advantageously externally defines a leading edge which separates the fluid flow and guides it towards the first and second channel 4, 6.
  • the collar 30 advantageously externally defines a leading edge which separates the fluid flow and guides it towards the first and second channel 4, 6.
  • the optimal condition of maximum volume almost all the fluid aspirated by the pump 1 transits through the first and second channel 4, 6. Moving away from the optimal condition of maximum volume increases the quantity of fluid that might also by-pass the first and second channel 4, 6.
  • the stator 3 illustrated in the version of figures 1-7 is advantageously typically made of a metal material.
  • the stator of figures 8-10 has a shape such that it might also be made of a plastic material.
  • the object of the present invention is therefore a system comprising:
  • Tests carried out by the Applicant have evidenced a 4% improvement in fluid-dynamic performance of the pump and a reduction in the noise levels if compared to pumps having conventional design and lacking in the claimed specifications.
  • the pump of the present invention can be used for lubricating internal combustion engines, enabling a reduction in emissions and preventing power losses.
  • the ever-greater attention to this area of problems (especially, but not only, in the automotive sector) in recent years has led to analysing and optimising all pump components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)
  • Rotary Pumps (AREA)
EP17184197.6A 2016-08-04 2017-08-01 Pompe à? dé?placement positif ayant un rotor à pales Active EP3279477B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000082659A IT201600082659A1 (it) 2016-08-04 2016-08-04 Pompa volumetrica a palette

Publications (2)

Publication Number Publication Date
EP3279477A1 true EP3279477A1 (fr) 2018-02-07
EP3279477B1 EP3279477B1 (fr) 2019-04-10

Family

ID=57610307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17184197.6A Active EP3279477B1 (fr) 2016-08-04 2017-08-01 Pompe à? dé?placement positif ayant un rotor à pales

Country Status (3)

Country Link
EP (1) EP3279477B1 (fr)
ES (1) ES2735208T3 (fr)
IT (1) IT201600082659A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020119893A1 (de) 2020-07-28 2022-02-03 Schwäbische Hüttenwerke Automotive GmbH Rotationspumpe mit verstellbarem Fördervolumen
EP4160019A1 (fr) * 2021-10-04 2023-04-05 Schwäbische Hüttenwerke Automotive GmbH Pompe rotative avec un dispositif de réglage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466622A (en) * 1942-11-07 1949-04-05 Hpm Dev Corp Hydraulic axial vane pump or motor
WO1993014318A1 (fr) * 1992-01-09 1993-07-22 Glyco-Metall-Werke Glyco B.V. & Co. Kg Pompe a cellules semi-rotative compacte et reglable
US5366354A (en) * 1992-03-06 1994-11-22 Jatco Corporation Variable fluid volume vane pump arrangement
EP2351934A1 (fr) 2010-01-11 2011-08-03 Pierburg Pump Technology GmbH Pompe lubrifiante à cylindrée variable
US20110189043A1 (en) 2010-01-29 2011-08-04 Hitachi Automotive Systems, Ltd. Vane pump
EP2865920A1 (fr) * 2013-10-14 2015-04-29 Hyundai Motor Company Module d'arbre d'équilibrage ayant une pompe à huile à cylindrée variable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466622A (en) * 1942-11-07 1949-04-05 Hpm Dev Corp Hydraulic axial vane pump or motor
WO1993014318A1 (fr) * 1992-01-09 1993-07-22 Glyco-Metall-Werke Glyco B.V. & Co. Kg Pompe a cellules semi-rotative compacte et reglable
US5366354A (en) * 1992-03-06 1994-11-22 Jatco Corporation Variable fluid volume vane pump arrangement
EP2351934A1 (fr) 2010-01-11 2011-08-03 Pierburg Pump Technology GmbH Pompe lubrifiante à cylindrée variable
US20110189043A1 (en) 2010-01-29 2011-08-04 Hitachi Automotive Systems, Ltd. Vane pump
EP2865920A1 (fr) * 2013-10-14 2015-04-29 Hyundai Motor Company Module d'arbre d'équilibrage ayant une pompe à huile à cylindrée variable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020119893A1 (de) 2020-07-28 2022-02-03 Schwäbische Hüttenwerke Automotive GmbH Rotationspumpe mit verstellbarem Fördervolumen
EP4160019A1 (fr) * 2021-10-04 2023-04-05 Schwäbische Hüttenwerke Automotive GmbH Pompe rotative avec un dispositif de réglage
DE102021125709A1 (de) 2021-10-04 2023-04-06 Schwäbische Hüttenwerke Automotive GmbH Rotationspumpe mit einer Verstelleinrichtung
US11873812B2 (en) 2021-10-04 2024-01-16 Schwäbische Hüttenwerke Automotive GmbH Rotary pump comprising an adjusting device

Also Published As

Publication number Publication date
ES2735208T3 (es) 2019-12-17
IT201600082659A1 (it) 2018-02-04
EP3279477B1 (fr) 2019-04-10

Similar Documents

Publication Publication Date Title
RU2628135C2 (ru) Газотурбинный двигатель
EP3279477B1 (fr) Pompe à? dé?placement positif ayant un rotor à pales
JP6309651B2 (ja) ターボ機械
EP2474743A2 (fr) Pompe à étages multiples de type tonneau
JP6653326B2 (ja) 排気タービン式過給機のためのコンプレッサ
EP2447538A2 (fr) Système et procédé d'assemblage d'un système de compresseur supersonique comprenant un rotor de compresseur supersonique et ensemble de compresseur
EP3156655B1 (fr) Pompe pour convoyer un fluide hautement visqueux
EP3156654B1 (fr) Pompe centrifuge pour convoyer un fluide hautement visqueux
EP1532367B1 (fr) Turbine centrifuge et dispositif de pompe
RU2205984C2 (ru) Лопастный насос с боковым каналом и крышка
JP2008542612A (ja) 圧送ユニット
CN110388291B (zh) 用于内燃机的进气段的进气管的管区段
KR970059488A (ko) 재생펌프
EP3364037A3 (fr) Soufflante radiale pour hotte d'aspiration
EP2495445A2 (fr) Système et procédés d'assemblage d'un rotor de compresseur supersonique comprenant un canal d'écoulement radial
RU2448278C2 (ru) Лопасть рабочего колеса центробежного насоса
RU2676168C1 (ru) Направляющий аппарат центробежного многоступенчатого насоса
Moloshnyi et al. Influence of Rotational Wall of Axial Inlet Device on Velocity Distribution at Impeller Inlet
WO2017090713A1 (fr) Aube fixe et compresseur centrifuge à aube fixe
JP2018132021A (ja) 遠心圧縮機及び遠心圧縮機の使用方法
RU2677306C1 (ru) Направляющий аппарат центробежного многоступенчатого насоса
US10718335B2 (en) Turbomachine
CN105298907A (zh) 流体泵浦低紊流动叶轮
RU105695U1 (ru) Направляющий аппарат центробежного насоса
RU156941U1 (ru) Рабочее колесо промежуточной ступени центробежного насоса

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180807

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: F04C 2/344 20060101AFI20180928BHEP

Ipc: F04C 14/22 20060101ALI20180928BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181115

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1119030

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190415

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602017003185

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190410

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1119030

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190910

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190710

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190710

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190711

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2735208

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20191217

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190810

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602017003185

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

26N No opposition filed

Effective date: 20200113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190801

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20200917

Year of fee payment: 4

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170801

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220926

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210802

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20220824

Year of fee payment: 6

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602017003185

Country of ref document: DE

Owner name: VHIT S.P.A., IT

Free format text: FORMER OWNER: VHIT S.P.A. SOCIETA UNIPERSONALE, OFFANENGO, IT

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230824

Year of fee payment: 7

Ref country code: DE

Payment date: 20230828

Year of fee payment: 7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230801