EP3303842B1 - Variable pendulum slider lubrication pump - Google Patents

Variable pendulum slider lubrication pump Download PDF

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Publication number
EP3303842B1
EP3303842B1 EP15726998.6A EP15726998A EP3303842B1 EP 3303842 B1 EP3303842 B1 EP 3303842B1 EP 15726998 A EP15726998 A EP 15726998A EP 3303842 B1 EP3303842 B1 EP 3303842B1
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EP
European Patent Office
Prior art keywords
rotor ring
pump rotor
driving means
pump
driving
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.)
Active
Application number
EP15726998.6A
Other languages
German (de)
French (fr)
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EP3303842A1 (en
Inventor
Carlo Pachetti
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.)
Pierburg Pump Technology GmbH
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Pierburg Pump Technology GmbH
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Filing date
Publication date
Application filed by Pierburg Pump Technology GmbH filed Critical Pierburg Pump Technology GmbH
Publication of EP3303842A1 publication Critical patent/EP3303842A1/en
Application granted granted Critical
Publication of EP3303842B1 publication Critical patent/EP3303842B1/en
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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
    • 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
    • F04C2/32—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 both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members
    • F04C2/332—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 both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member

Definitions

  • the invention refers to a variable pendulum slider lubrication pump for providing pressurized liquid lubricant to an internal combustion engine.
  • a variable pendulum slider lubrication pump which is provided with a non-rotatable and radially shiftable control ring, a rotatable and radially shiftable outside pump rotor ring which rotates inside the control ring and with a rotatable and non-shiftable inside pump rotor ring which is co-rotatably connected to the outside pump rotor ring.
  • the rotational connection of the outside pump rotor ring with the inside pump rotor ring is provided by a plurality of separation pendulum vanes which co-rotate with the outside pump rotor ring and the inside pump rotor ring.
  • the pendulum vanes fluidically separate a plurality of rotating pumping compartments.
  • the pendulum vanes also work as driving means which transfer a rotational force or momentum from the inside pump rotor ring to the outside pump rotor ring.
  • the inside pump rotor ring is driven by a driving source, for example is mechanically driven by the internal combustion engine. This rotation is transferred to the outside pump rotor ring by the pendulum vanes.
  • the pendulum vanes therefore have two functions, namely a fluidic separation function and a force transfer function. Therefore, the pendulum vanes are exposed to considerable mechanical wearout which deteriorates the sealing quality and thereby deteriorates the fluidic efficiency of the lubrication pump.
  • WO 03069161 discloses a variable pendulum slider lubrication pump with four seperation pendulum vanes and one seperation non-pendulum vane which is fixed to the outside pump rotor ring and is responsible for transferring the rotational force from the outside pump rotor ring to the inside pump rotor ring.
  • the variable pendulum slider lubrication pump according to the invention is provided with a plurality of separation pendulum vanes which do not have any driving function or towing function.
  • the separation pendulum vanes only have the function to fluidically separate the plurality of rotating pumping compartments in circumferential direction.
  • a plurality of separate driving means is provided which rotatably connect the outside pump rotor ring with the inside pump rotor ring.
  • the driving means are provided within the respective pumping compartments, respectively, The driving forces are transferred exclusively by the driving means from the inside pump rotor ring to the outside pump rotor ring or vice versa, but are not transferred by the pendulum vanes anymore.
  • the form and the material of the separation pendulum vanes can be optimized for one single function, namely the fluidic separation of the pumping compartments.
  • the driving means can be optimized with respect to the material choice and to the design for the only function, namely the transfer of a rotational force or momentum from one pump rotor ring to the other pump rotor ring because the driving means do not fluidically separate any compartments from each other.
  • the separation pendulum vanes do not have any force transfer function anymore, the mechanic wearout of the pendulum vanes is reduced significantly and the design of and the material choice for the pendulum vanes can be optimized for their fluidic function. As a consequence, the long term sealing quality of the pendulum vanes is improved significantly which leads to an improved long-term fluidic efficiency of the pump.
  • the transfer of the rotational force or momentum from one pump rotor ring to the other pump rotor ring is performed not only by one single driving means but by a plurality of separate driving means so that the rotational momentum is preferably transferred in a particular sector of the complete circumferential pumping chamber which is defined by the outside pump rotor ring.
  • the momentum transfer sector can preferably be provided in that sector where the highest forces appear, for example in the outlet sector where the liquid lubricant can have a total pressure of up to 10 bar.
  • the plurality of separate driving means can be designed and arranged so as to distribute the rotational forces/momentum over the complete circumference so that the maximum transfer force at each driving means is reduced significantly.
  • the driving means is stiffly connected to the body of the outside pump rotor ring or of the inside pump rotor ring.
  • the driving means are not provided as pendulum levers but are stiffly connected to one of the two pump rotor rings.
  • the driving means are provided integrally with the rotor body of the outside pump rotor ring or of the inside pump rotor ring.
  • the rotor body and the driving means are produced as one single part so that the production is relatively simple and cost-effective. Since the driving means are provided integrally with the respective rotor body, the fixation of the driving means at the respective rotor body is strong and reliable.
  • the separation pendulum vanes and the driving means are provided in an alternating manner, seen in circumferential direction of the pumping chamber.
  • one single driving means is provided in every pumping compartment, separated by the pendulum vanes.
  • the driving means are provided with a circular driving head, respectively, which engages a corresponding circular driving cavity at the other pump rotor ring, respectively.
  • the driving head extends into the driving cavity.
  • the driving head as well as the driving cavity are circular in cross-section, whereby the inner diameter of the driving cavity is larger than the outer diameter of the circular driving head. The difference between the two diameters depends on the total shifting path of the control ring.
  • the driving means is provided with a driving head which engages a corresponding driving cavity at the other pump rotor ring.
  • the axial extend of the driving head is equal to the axial extent of the corresponding driving cavity and of the pumping compartment.
  • the driving means and the corresponding driving cavity are used over the entire available axial length to transfer the rotational forces between the pump rotor rings to thereby minimize the surface pressure at the surfaces of the driving heads and of the driving cavities.
  • the material of the pendulum vanes is different of the material of the rotor ring body which is provided with the driving means.
  • the pendulum vanes are made out of plastic material,
  • the pendulum vane material can be a relatively light material, as for example plastics.
  • variable pendulum slider lubrication pump 10 delivers pressurized liquid lubricant to an internal combustion engine (not shown) and is mechanically driven by the engine. Alternatively "the lubrication pump 10 can be driven by an electric motor.
  • the pump 10 is provided with a non-rotatable and radially shiftable control ring 12 which is, in the present embodiment, linearly shiftable but can be, in an alternative embodiment, be arranged pivotable so that a circular but not exactly radial shifting path is realized.
  • the control ring 12 is made out of metal or plastic.
  • the circular control ring 12 is shiftably supported by a first control plunger 25 being shiftably arranged in a first control chamber 24 and by a second control plunger 27 being shiftably arranged in a second control chamber 26.
  • the control chambers 24, 26 are filled with the lubricant having a particular pressure to thereby position the control ring 12 somewhere between a position of maximum eccentricity with respect to the rotation axis of a rotor shaft 18 as shown in the figure and minimum or zero eccentricity with respect to the rotor shaft 18.
  • the outside pump rotor ring 14 is circular in shape, is made out of metal or plastic and is rotatably supported by the control ring 12.
  • the pump 10 is provided with the non-shiftable rotatable rotor shaft 18 which is driven by the engine and which drives and rotates an inside pump rotor ring 16 which is not radially shiftable.
  • the rotor shaft 18 and the rotor rings 14, 16 rotate anti-clockwise.
  • the pump 10 is provided with numerous separation pendulum vanes 20 which co-rotate with the outside pump rotor ring 14 and the inside pump rotor ring 16.
  • the pendulum vanes 20 are provided equidistantly around the circumference of the pump rotor and are pivotably attached to the outside pump rotor ring 14 with a pendulum pivot 34, respectively.
  • the inner radial end of the pendulum vanes 20 is provided with a circular pendulum head 36, respectively.
  • the pendulum heads 36 are arranged pivotable and radially shiftable inside numerous corresponding rectangular sliding chambers 32 which are provided in the inside rotor body 17.
  • the sliding chambers 32 have a radial opening through which the separation pendulums 20 extend into the sliding chambers 32, respectively.
  • the first end wall 11 is provided with a sickle-shaped lubricant inlet opening 50 and with a sickle-shaped lubricant outlet opening 52.
  • the inside pump rotor ring 16 is co-rotatably connected to the outside pump rotor 14 by numerous separate driving means 22.
  • the total number of pendulum vanes 20, of pumping compartments 21 and of driving means 22 is equal so that the separation pendulum vanes 20 and the driving means 22 are provided alternating, seen in circumferential direction.
  • Every driving means 22 is provided with a radial driving means body 23 which extends exactly radially or with a radial component from the outside rotor body 15 to the center.
  • the inner radial end of the driving means 22 is provided with a circular driving head 40 which extends into a circular driving cavity 30 which is provided radially opposite to the driving means 22 at the radial outside of the Inside rotor body 17.
  • the driving means 22 are provided integrally with the outside rotor body 15 so that the outside rotor body 15 and the driving means body 23 are provided as one single piece.
  • the inside diameter of the circular driving cavity 30 is higher than the outside diameter of the circular driving head 40.
  • the relation between said diameters and the absolute size of said diameters depend on the eccentricity range.
  • the diameters of the driving cavity 30 and of the driving head 40 as well as the relative rotational position of the driving means 22 and the driving cavity 30 to each other result in a driving sector which lies within the sector which is defined by the outlet opening 52. Only in the driving sector the rotational force is transferred from the circular surface of the driving cavity 30 to the driving head 40 of the driving means 22.
  • the driving means 22, the outside rotor body 15 including the driving means, the inside rotor body 17 and the pendulum vanes 20 all have the same axial extend.
  • the separation pendulum vanes 20 are made out of plastic, whereas the outside pump rotor ring 14 and the inside pump rotor ring 16 are made out of metal or plastic.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Description

  • The invention refers to a variable pendulum slider lubrication pump for providing pressurized liquid lubricant to an internal combustion engine.
  • In DE 10 2013 218 018 A1 a variable pendulum slider lubrication pump is disclosed which is provided with a non-rotatable and radially shiftable control ring, a rotatable and radially shiftable outside pump rotor ring which rotates inside the control ring and with a rotatable and non-shiftable inside pump rotor ring which is co-rotatably connected to the outside pump rotor ring. The rotational connection of the outside pump rotor ring with the inside pump rotor ring is provided by a plurality of separation pendulum vanes which co-rotate with the outside pump rotor ring and the inside pump rotor ring. The pendulum vanes fluidically separate a plurality of rotating pumping compartments. The pendulum vanes also work as driving means which transfer a rotational force or momentum from the inside pump rotor ring to the outside pump rotor ring. The inside pump rotor ring is driven by a driving source, for example is mechanically driven by the internal combustion engine. This rotation is transferred to the outside pump rotor ring by the pendulum vanes. The pendulum vanes therefore have two functions, namely a fluidic separation function and a force transfer function. Therefore, the pendulum vanes are exposed to considerable mechanical wearout which deteriorates the sealing quality and thereby deteriorates the fluidic efficiency of the lubrication pump.
  • WO 03069161 discloses a variable pendulum slider lubrication pump with four seperation pendulum vanes and one seperation non-pendulum vane which is fixed to the outside pump rotor ring and is responsible for transferring the rotational force from the outside pump rotor ring to the inside pump rotor ring.
  • It is an object of the invention to provide a variable pendulum slider lubrication pump with improved long-term fluidic efficiency.
  • This object is solved with a variable pendulum slider lubrication pump with the features of claim 1.
  • The variable pendulum slider lubrication pump according to the invention is provided with a plurality of separation pendulum vanes which do not have any driving function or towing function. The separation pendulum vanes only have the function to fluidically separate the plurality of rotating pumping compartments in circumferential direction. According to the invention, a plurality of separate driving means is provided which rotatably connect the outside pump rotor ring with the inside pump rotor ring. The driving means are provided within the respective pumping compartments, respectively, The driving forces are transferred exclusively by the driving means from the inside pump rotor ring to the outside pump rotor ring or vice versa, but are not transferred by the pendulum vanes anymore. The form and the material of the separation pendulum vanes can be optimized for one single function, namely the fluidic separation of the pumping compartments. Also the driving means can be optimized with respect to the material choice and to the design for the only function, namely the transfer of a rotational force or momentum from one pump rotor ring to the other pump rotor ring because the driving means do not fluidically separate any compartments from each other.
  • Since the separation pendulum vanes do not have any force transfer function anymore, the mechanic wearout of the pendulum vanes is reduced significantly and the design of and the material choice for the pendulum vanes can be optimized for their fluidic function. As a consequence, the long term sealing quality of the pendulum vanes is improved significantly which leads to an improved long-term fluidic efficiency of the pump.
  • The transfer of the rotational force or momentum from one pump rotor ring to the other pump rotor ring is performed not only by one single driving means but by a plurality of separate driving means so that the rotational momentum is preferably transferred in a particular sector of the complete circumferential pumping chamber which is defined by the outside pump rotor ring. As a consequence, the momentum transfer sector can preferably be provided in that sector where the highest forces appear, for example in the outlet sector where the liquid lubricant can have a total pressure of up to 10 bar.
  • Alternatively, the plurality of separate driving means can be designed and arranged so as to distribute the rotational forces/momentum over the complete circumference so that the maximum transfer force at each driving means is reduced significantly.
  • According to a preferred embodiment of the invention, the driving means is stiffly connected to the body of the outside pump rotor ring or of the inside pump rotor ring. The driving means are not provided as pendulum levers but are stiffly connected to one of the two pump rotor rings. As a consequence, high forces can be transferred by the driving means without the danger of wearout of a force transferring pivot.
  • Preferably, the driving means are provided integrally with the rotor body of the outside pump rotor ring or of the inside pump rotor ring. The rotor body and the driving means are produced as one single part so that the production is relatively simple and cost-effective. Since the driving means are provided integrally with the respective rotor body, the fixation of the driving means at the respective rotor body is strong and reliable.
  • According to a preferred embodiment of the invention, the separation pendulum vanes and the driving means are provided in an alternating manner, seen in circumferential direction of the pumping chamber. In every pumping compartment, separated by the pendulum vanes, one single driving means is provided. As a consequence, the design of the rotor arrangement comprising the pump rotor, the pendulum vanes and the driving means is absolutely periodic in circumferential direction so that the interior fluidic volume of all pumping compartments is equal.
  • Preferably, the driving means are provided with a circular driving head, respectively, which engages a corresponding circular driving cavity at the other pump rotor ring, respectively. The driving head extends into the driving cavity. The driving head as well as the driving cavity are circular in cross-section, whereby the inner diameter of the driving cavity is larger than the outer diameter of the circular driving head. The difference between the two diameters depends on the total shifting path of the control ring.
  • According to a preferred embodiment of the invention, the driving means is provided with a driving head which engages a corresponding driving cavity at the other pump rotor ring. The axial extend of the driving head is equal to the axial extent of the corresponding driving cavity and of the pumping compartment. The driving means and the corresponding driving cavity are used over the entire available axial length to transfer the rotational forces between the pump rotor rings to thereby minimize the surface pressure at the surfaces of the driving heads and of the driving cavities.
  • Preferably, the material of the pendulum vanes is different of the material of the rotor ring body which is provided with the driving means. Preferably, the pendulum vanes are made out of plastic material,
  • Since the pendulum vanes do not transfer any rotational forces anymore, the pendulum vane material can be a relatively light material, as for example plastics.
  • One embodiment of the invention is described with reference to the enclosed drawings, wherein
    the figure shows a variable pendulum slider lubrication pump in cross-section.
  • The variable pendulum slider lubrication pump 10 delivers pressurized liquid lubricant to an internal combustion engine (not shown) and is mechanically driven by the engine. Alternatively" the lubrication pump 10 can be driven by an electric motor.
  • The pump 10 is provided with a non-rotatable and radially shiftable control ring 12 which is, in the present embodiment, linearly shiftable but can be, in an alternative embodiment, be arranged pivotable so that a circular but not exactly radial shifting path is realized. The control ring 12 is made out of metal or plastic.
  • The circular control ring 12 is shiftably supported by a first control plunger 25 being shiftably arranged in a first control chamber 24 and by a second control plunger 27 being shiftably arranged in a second control chamber 26. The control chambers 24, 26 are filled with the lubricant having a particular pressure to thereby position the control ring 12 somewhere between a position of maximum eccentricity with respect to the rotation axis of a rotor shaft 18 as shown in the figure and minimum or zero eccentricity with respect to the rotor shaft 18.
  • Inside the control ring 12 a rotatable and, together with the control ring, radially shiftable outside pump rotor ring 14 is provided. The outside pump rotor ring 14 is circular in shape, is made out of metal or plastic and is rotatably supported by the control ring 12.
  • The pump 10 is provided with the non-shiftable rotatable rotor shaft 18 which is driven by the engine and which drives and rotates an inside pump rotor ring 16 which is not radially shiftable. In the present embodiment, the rotor shaft 18 and the rotor rings 14, 16 rotate anti-clockwise.
  • The pump 10 is provided with numerous separation pendulum vanes 20 which co-rotate with the outside pump rotor ring 14 and the inside pump rotor ring 16. The pendulum vanes 20 are provided equidistantly around the circumference of the pump rotor and are pivotably attached to the outside pump rotor ring 14 with a pendulum pivot 34, respectively. The inner radial end of the pendulum vanes 20 is provided with a circular pendulum head 36, respectively. The pendulum heads 36 are arranged pivotable and radially shiftable inside numerous corresponding rectangular sliding chambers 32 which are provided in the inside rotor body 17. The sliding chambers 32 have a radial opening through which the separation pendulums 20 extend into the sliding chambers 32, respectively.
  • The inside pump rotor ring 16, the outside pump rotor ring 14, a first end wall 11 and a second end wall (not shown) together enclose and define a pump chamber. The separation pendulums 20 divide the pump chamber into numerous circulating pumping compartments 21. The first end wall 11 is provided with a sickle-shaped lubricant inlet opening 50 and with a sickle-shaped lubricant outlet opening 52.
  • The inside pump rotor ring 16 is co-rotatably connected to the outside pump rotor 14 by numerous separate driving means 22. The total number of pendulum vanes 20, of pumping compartments 21 and of driving means 22 is equal so that the separation pendulum vanes 20 and the driving means 22 are provided alternating, seen in circumferential direction.
  • Every driving means 22 is provided with a radial driving means body 23 which extends exactly radially or with a radial component from the outside rotor body 15 to the center. The inner radial end of the driving means 22 is provided with a circular driving head 40 which extends into a circular driving cavity 30 which is provided radially opposite to the driving means 22 at the radial outside of the Inside rotor body 17. The driving means 22 are provided integrally with the outside rotor body 15 so that the outside rotor body 15 and the driving means body 23 are provided as one single piece.
  • The inside diameter of the circular driving cavity 30 is higher than the outside diameter of the circular driving head 40. The relation between said diameters and the absolute size of said diameters depend on the eccentricity range.
  • In the present embodiment, the diameters of the driving cavity 30 and of the driving head 40 as well as the relative rotational position of the driving means 22 and the driving cavity 30 to each other result in a driving sector which lies within the sector which is defined by the outlet opening 52. Only in the driving sector the rotational force is transferred from the circular surface of the driving cavity 30 to the driving head 40 of the driving means 22.
  • The driving means 22, the outside rotor body 15 including the driving means, the inside rotor body 17 and the pendulum vanes 20 all have the same axial extend. The separation pendulum vanes 20 are made out of plastic, whereas the outside pump rotor ring 14 and the inside pump rotor ring 16 are made out of metal or plastic.

Claims (7)

  1. A variable pendulum slider lubrication pump (10) for providing pressurized liquid lubricant to an internal combustion engine, comprising
    a non-rotatable and radially shiftable control ring (12),
    a rotatable and radially shiftable outside pump rotor ring (14) which rotates inside the control ring (12),
    a rotatable and non-shiftable inside pump rotor ring (16) which is co-rotatably connected to the outside pump rotor ring (14),
    a plurality of separation pendulums vanes (20) which co-rotate with the outside pump rotor ring (14) and the inside pump rotor ring (16) and fluidically separate a plurality of rotating pumping compartments (21), the variable pendulum slider lubrication pump (10) characterised by further comprising a plurality of separate driving means (22) which rotatably connect the outside pump rotor ring (14) with the inside pump rotor ring (16), the driving means (22) being provided within the respective pumping compartments (21).
  2. The variable pendulum slider lubrication pump (10) of claim 1, wherein the driving means (22) are stiffly connected to the outside pump rotor ring (14) or to the inside pump rotor ring (16).
  3. The variable pendulum slider lubrication pump (10) of claim 2, wherein the driving means (22) are provided integrally with the rotor body (15) of the outside pump rotor ring (14) or of the inside pump rotor ring (16).
  4. The variable pendulum slider lubrication pump (10) of one of the preceding claims, wherein the separation pendulums vanes (20) and the driving means (22) are provided alternating, seen in circumferential direction.
  5. The variable pendulum slider lubrication pump (10) of one of the preceding claims, wherein the driving means (22) are provided with a circular driving head (40) which engages a circular driving cavity (30) at the other pump rotor ring (16).
  6. The variable pendulum slider lubrication pump (10) of one of the preceding claims, wherein the driving means (22) is provided with a driving head (40) which engages a corresponding driving cavity (30) at the other pump rotor ring (16) and the axial extent of the driving head (40) is equal to the axial extent of the corresponding driving cavity (30) and of the pumping compartment (21).
  7. The variable pendulum slider lubrication pump (10) of one of the preceding claims, wherein the material of the pendulum vanes (20) is different of the material of the rotor body (15) which is provided with the driving means (22), and preferably is made out of plastic.
EP15726998.6A 2015-06-08 2015-06-08 Variable pendulum slider lubrication pump Active EP3303842B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/062737 WO2016198091A1 (en) 2015-06-08 2015-06-08 Variable pendulum slider lubrication pump

Publications (2)

Publication Number Publication Date
EP3303842A1 EP3303842A1 (en) 2018-04-11
EP3303842B1 true EP3303842B1 (en) 2019-01-30

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EP15726998.6A Active EP3303842B1 (en) 2015-06-08 2015-06-08 Variable pendulum slider lubrication pump

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EP (1) EP3303842B1 (en)
WO (1) WO2016198091A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019170217A1 (en) * 2018-03-05 2019-09-12 Pierburg Pump Technology Gmbh Variable pendulum vane lubricant pump
WO2019170218A1 (en) * 2018-03-05 2019-09-12 Pierburg Pump Technology Gmbh Variable displacement lubricant pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20020075A1 (en) * 2002-02-15 2003-08-18 Pierburg Spa VARIABLE FLOW ROTARY VANE PUMP, PARTICULARLY FOR OIL

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* Cited by examiner, † Cited by third party
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None *

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Publication number Publication date
EP3303842A1 (en) 2018-04-11
WO2016198091A1 (en) 2016-12-15

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