WO2014077835A1 - Pompes à palettes et leurs procédés de commande - Google Patents

Pompes à palettes et leurs procédés de commande Download PDF

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Publication number
WO2014077835A1
WO2014077835A1 PCT/US2012/065608 US2012065608W WO2014077835A1 WO 2014077835 A1 WO2014077835 A1 WO 2014077835A1 US 2012065608 W US2012065608 W US 2012065608W WO 2014077835 A1 WO2014077835 A1 WO 2014077835A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
shaft
housing
axis
vane pump
Prior art date
Application number
PCT/US2012/065608
Other languages
English (en)
Inventor
John KOPP
Original Assignee
Moog Inc.
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 Moog Inc. filed Critical Moog Inc.
Priority to CA2890682A priority Critical patent/CA2890682A1/fr
Priority to EP12808552.9A priority patent/EP2920468A1/fr
Priority to CN201280077869.5A priority patent/CN104995409A/zh
Priority to JP2015543016A priority patent/JP2015535056A/ja
Priority to PCT/US2012/065608 priority patent/WO2014077835A1/fr
Priority to US14/443,088 priority patent/US20150292503A1/en
Priority to BR112015010868A priority patent/BR112015010868A2/pt
Publication of WO2014077835A1 publication Critical patent/WO2014077835A1/fr

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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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • 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
    • F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps
    • 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
    • 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

Definitions

  • the present invention relates generally to vane pumps, and, more particularly, to improved stackable over-center vane pumps and methods of operating the same.
  • Vane pumps are, of course, known. These devices generally have a rotor mounted for rotation within a cavity in a body or member. A plurality of circumferentially-spaced slots extends radially into the rotor from its outer surface. A vane is slidably mounted in each slot, and has a distal end operatively arranged to engage a portion of the member wall defining the cavity. Often, the vanes are urged to move outwardly from the rotor by centrifugal force when the rotor rotates. These vanes define with the rotor and the member, a series of circumferentially-spaced chambers between a fluid inlet and a fluid outlet.
  • the improved vane pump (20) includes: a housing (21); a shaft (22) having a shaft axis (yi-yi), the shaft being mounted on the housing for rotation about the shaft axis; a first motor (23) operatively arranged to selectively rotate the shaft; a rotor (24) mounted for rotation with the shaft, the rotor having a plurality of circumferentially-spaced slots (26); a member (28) having a surface (29) and having a member axis (y 2 -)> 2 ), the member being movable relative to the shaft axis through a permissible range of motion (30) which includes portions ("-1", "+1") on either side of a null position ("0"); wherein the member axis iy2-yi) is coincident with the shaft axis iyi-yi) when the member is in the null position; a vane (32) movably mounted in each rotor slot and having a distal end arranged to sealing
  • the improved pump may further include a boundary seal (54) separating a wet portion (55) of the second motor from a dry portion (56) of the second motor.
  • the second motor may have one portion (58) arranged on one side of the seal, and may have another portion (59) arranged on the other side of the seal.
  • the one portion may include a permanent magnet (58), and the other portion may include a coil (59).
  • the member may be mounted on the housing.
  • the member may be mounted on the housing by a flexure member (40).
  • the range of member motion may be arcuate, linear or rotational.
  • a resilient member (41) may be arranged to act between the housing and the member for urging the member to move toward the null position.
  • the improved vane pump (20) may include: a housing (21); a shaft (22) having a shaft axis (yi-yi), the shaft being mounted on the housing for rotation about the shaft axis; a first motor (23) mounted on the housing and operatively arranged to selectively rotate the shaft; a plurality of rotors (24 in Fig. 1 ; 51 in Fig.
  • each rotor having a plurality of circumferentially-spaced slots (26); a plurality of members (28), each member having a surface (57) and having a member axis iyi-yi), each member being associated with a respective one of the rotors and being movable relative to the shaft axis through a permissible range of motion (30 in Fig.
  • each member axis is coincident with the shaft axis when the associated member is in the null position; a vane (26) movably mounted in each rotor slot and having a distal end arranged to sealingly and wip- ingly engage the surface of the associated member; the vanes defining with the associated rotor and surface a plurality of chambers (33 A-33F in Fig. 1 ; 62A-62F in Fig.
  • the individual volumes of the chambers varying as a function of the relative position between the associated rotor and surface; the housing having two fluid passageways (34, 34) operatively arranged to communicate with two of the chambers for each member as a function of the angular position of the rotor relative to the housing; a plurality of second motors (31) operatively arranged to selectively move the associated member relative to the shaft axis through its permissible range of motion; wherein movement of each member off null in one direction along the range of motion of such member will enable fluid flow in a first direction between the ports of such member; and wherein movement of each member off null in the opposite direction along the range of motion of such member will enable fluid flow in the opposite direction between the ports of such member.
  • the members may be stacked at axially-spaced locations along the shaft.
  • the fluid output of each member may be controllable independently.
  • the improved pump may further include a plurality of boundary seals (54).
  • Each boundary seal may separate a wet portion (55) of an associated second motor from a dry portion (56) of such associated second motor.
  • Each second motor may have one portion arranged on one side of the associated seal, and may have another portion arranged on the other side of such associated seal.
  • the one portion may include a permanent magnet (58), and the other portion may include a coil (59).
  • Each member may be mounted on the housing by a flexure member (40).
  • the range of motion of each member may be arcuate, linear or rotational.
  • the pump may further include a resilient member (41) acting between the housing and each member for urging such member to move toward the null position.
  • the improved vane pump (20) may include: a housing (21); a shaft (22) having a shaft axis (yi-yi), the shaft being mounted on the housing for rotation about the shaft axis; a first motor (23) operatively arranged to selectively rotate the shaft; a rotor mounted for rotation with the shaft, the rotor having a plurality of circumferentially-spaced slots (26); a member (28) having a surface (29) arranged to face the rotor and having a member axis (y 2 -yi), the member being movable relative to the shaft axis through a permissible range of motion (30) which includes portions ("-1 ", "+1 ") on either side of a null position ("0"); wherein the member axis is coincident with the shaft axis when the member is in the null position; a vane (30) mo ably mounted in each rotor slot and having a distal end arranged to engage the member surface; a
  • the direction of fluid flow between the passageways may be in one direction when the member has been moved off-null in one direction along the range of motion, and may be in the opposite direction when the member has been moved off-null in the opposite direction along the range of motion.
  • the pump may further include a boundary seal (54) separating a wet portion (55) of the second motor from a dry portion (56) of the second motor.
  • the second motor may have one portion arranged on one side of the seal, and may have another portion arranged on the other side of the seal.
  • the one portion may include a permanent magnet (58), and the other portion may include a coil (59).
  • the improved vane pump (20 in Fig. 1 ; 50 in Fig. 5) may include: a shaft (22) having a shaft axis (yi-yi), the shaft being mounted for rotation about the shaft axis; a first motor (23) operatively arranged to selectively rotate the shaft about the shaft axis; a rotor (24) mounted for rotation with the shaft, the rotor having a plurality of circumferen- tially-spaced slots (26); a member (28) having a surface (29) and having a member axis (1 ⁇ 2- yi), the member being movable relative to the shaft axis through a permissible range of motion (30) which includes portions (i.e., positions "-1" and "+1 ", respectively) on either side of a null position (i.e., position "0"); wherein the member axis is coincident with the shaft axis when the member is in the null position; a vane (32) movably mounted in
  • the one portion may include a permanent magnet (58), and the other portion may include a coil (59).
  • a vane pump (20) that includes a housing (21), a rotor (24) having a rotor axis iyi-yi) and being rotatably mounted on the housing, the rotor having a plurality of circumferentially-spaced slots (26); a member (28) having a surface (29) arranged to face the rotor and having a member axis (y2-yi), the member being movable relative to the rotor axis through a permissible range of motion (30); wherein the member axis (y2-yi) is coincident with the rotor axis iyi-yi) when the member is in the null position; a vane (32) movably mounted in each rotor slot and having a distal end arranged to engage the member surface; the vanes defining with the rotor and surface a plurality of chambers (33A-33F), the individual volumes of the chambers varying as a function
  • the method may further include the step of varying the magnitude of the fluid flow between the ports by varying the position between the rotor and member axes.
  • the position between the rotor and member axes may be varied by moving the member relative to the rotor.
  • the general object of the invention is to provide an improved vane pump.
  • Another object is to provide an improved vane pump having a plurality of stackable pump elements.
  • Another object is to provide an improved vane pump having a plurality of stackable pump elements that may be controlled independently of one another.
  • Still another object is to provide an improved method of operating a vane pump.
  • Fig. 1 is a fragmentary schematic vertical sectional view of a first form of an improved vane pump.
  • Fig. 2 is fragmentary schematic horizontal sectional view thereof, taken generally on line 2-2 of Fig. 1.
  • FIG. 3 is a fragmentary schematic horizontal sectional view through a second form of the improved vane pump, this view showing the member as being movably mounted on the housing by means of a flexure member, this view showing the member as being in a right- wardly-displaced off-null position relative to the rotor.
  • Fig. 4 is a fragmentary schematic horizontal sectional view of another form of the improved vane pump, generally similar to Fig. 3, but shows the member as constrained for linear motion within bearings, and shows the member as being in a rightwardly-displaced off- null position.
  • FIG. 5 is a fragmentary schematic vertical sectional view showing a plurality of rotors and members being stacked at axially-spaced locations along the shaft.
  • Fig. 6 is a fragmentary schematic horizontal sectional view, taken generally on line 6-6 of Fig. 5, showing one rotor within its associated member.
  • Fig. 7 is a schematic view of a vane pump, generally similar to Fig. 4, showing the member as being in its null position relative to the rotor.
  • Fig. 8A is a view generally similar to Fig. 7, showing the member as having been moved rightwardly off-null and showing chamber 71 A as having been filled with fluid from fluid port C ⁇ .
  • Fig. 8B is a view similar to Fig. 8A, but shows the rotor as having been rotated in a clockwise direction through an arc of about 60° from the position shown in Fig. 8 A.
  • Fig. 8C is a view similar to Fig. 8B, but shows the rotor as having been further rotated in a clockwise direction through an arc of about 60° from the position shown in Fig. 8B, and showing chamber 71 A as being aligned with fluid port C 2 .
  • Fig. 9A is a view generally similar to Fig. 7, showing the member as having been moved leftwardly off-null and showing chamber 71 A as being aligned with fluid port C 2 .
  • Fig. 9B is a view similar to Fig. 9A, but shows the rotor as having been rotated in a clockwise direction through an arc of about 60° from the position shown in Fig. 9A.
  • Fig. 9C is a view similar to Fig. 9B, but shows the rotor as having been further rotated in a clockwise direction through an arc of about 60° from the position shown in Fig. 9B, and showing chamber 71 A as being aligned with fluid port Cj.
  • the terms “horizontal”, “vertical”, “left”, “right”, “up” and “down”, as well as adjectival and adverbial derivatives thereof simply refer to the orientation of the illustrated structure as the particular drawing figure faces the reader.
  • the terms “inwardly” and “outwardly” generally refer to the orientation of a surface relative to its axis of elongation, or axis of rotation, as appropriate.
  • the present invention broadly provides improved vane pumps, and improved methods of operating same.
  • a first form of the improved vane pump is generally indicated at 20.
  • This pump is shown as broadly as including an annular housing 21, a shaft 22 having a vertical shaft axis yi-yi, a. first motor 23 mounted on the housing and operatively arranged to selectively rotate the shaft about axis yi-yi, and a rotor 24 mounted on the lower end of the shaft for rotation therewith.
  • the rotor is shown as being a vertically-elongated cylindrical member having an outwardly-facing vertical cylindrical surface 25 of radius Rj.
  • Motor 23 is arranged to rotate rotor 24 at the appropriate angular speed in either angular direction, as desired, relative to the housing.
  • the direction and speed of rotor rotation does not have to be changed or modified to reverse the direction of fluid flow between fluid ports C ⁇ , C 2 , as discussed infra.
  • This member has an inwardly-facing vertical cylindrical surface 29 generated about a member axis y2-y2-
  • the member axis y>2- ⁇ >2 is shown as being coincident with the rotor axis yi-yi.
  • these coincident axes are indicated & ⁇ yily2 - yily2-
  • the member is movable relative to the shaft axis through a horizontal permissible range of motion, which includes portions on either side of ⁇ i.e., to the left and right of) a null position.
  • This range of motion is schematically indicated at 30 in Figs. 1 and 2.
  • the null position is indicated by the center reference "0", and the portions to the left and right thereof are indicated by “-1 " and “+1 “, respectively.
  • the permissible range of motion of the member relative to the stator is from “-1 “ to "+1”, and the null position "0" is centered therebetween. However, this need not invariably occur.
  • the extreme limits of the range of motion, "-1” and “+1 “, respectively, may be equally distant from null position "0", or not.
  • the member is shown as being in its null position such that axes yi-yi and j ⁇ -J ⁇ are coincident.
  • the member can be moved in a horizontal direction, either leftwardly or rightwardly from the position shown in Fig. 2, by a motor 31.
  • a vane 32 is shown as being movably mounted in each rotor slot and as having a distal end arranged to sealingly and wipingly engage the member surface 29.
  • the vanes define with the rotor and the surface a plurality of circumferentially-spaced chambers.
  • the housing is shown as having two passageways, severally indicated at 34, that communicate with an opposite two of the chambers as a function of the angular position of the rotor of the housing.
  • the passageways could communicate elsewhere with the chambers.
  • the passageways might simply communicate with the end wall of the chambers.
  • Other forms may have more than two passageways.
  • FIG. 3 is a schematic view of another form of the inventive vane pump, generally indicated at 35.
  • This embodiment also has a specially-configured hollow housing, generally indicated at 36, with a member 38 therewithin surrounding a rotor 39, as previously described.
  • member 38 is supported on the housing by means of a flexure member, generally indicated at 40.
  • the lower end of member 38 is supported by a spring-biased telescopic linkage or resilient member, generally indicated at 41.
  • This linkage includes an upper portion 42 pivotally connected to member 38, and a lower portion 43 pivotally connected to the housing and telescopically received within the upper portion.
  • a coil spring 44 acts between the two linkage portions, and continually urges the pivotal connection between the linkage and the member to move downwardly. This tends to remove all backlash from the linkage holding suspended member 38, and, further, continuously urges the off-null displaced member to move back toward a null position.
  • a second motor 31 is shown as being operatively arranged to selectively move member 38 either leftwardly or rightwardly off null, as desired relative to the shaft axis through a horizontal permissible range of motion which includes portions on either side (i.e., to the left and right of) of a null position "0".
  • member 38 is mounted for arcuate swinging movement about some effective pivot point along flexure member 40.
  • member 38 is shown as having been shifted rightwardly relative to the rotor from its null position (i.e., from null position "0" to rightwardly-shifted position "+1 "). This off-null displacement of the member causes the volumes of the vane chambers to vary as the rotor rotates in one angular direction. This causes fluid to be directed from port Cj to port C 2 , or vice versa, depending on the direction of rotor rotation.
  • Fig. 4 is a schematic view of another form of the improved vane pump having a member 38 arranged to be moved relative to a rotor 39.
  • the member is not mounted for pivotal or swinging arcuate movement relative to the housing. Rather, the member is constrained for linear sliding motion, both leftwardly and rightwardly, along a horizontal permissible range of movement defined by bearings, severally indicated at 49.
  • this arrangement is generally similar to the first embodiment insofar as movement of the member relative to the rotor is concerned.
  • FIG. 5 is a schematic view of another form of vane pump, generally indicated at 50.
  • This embodiment is shown as having a plurality of rotors, severally indicated at 51, and members, severally indicated at 52, mounted at longitudinally-spaced locations along a vertically-disposed shaft 53.
  • the various vane pumps are "stacked" at various locations along the shaft.
  • the shaft is arranged to be rotated about shaft axis y ⁇ yi by a first motor (not shown), as previously described.
  • the various members 52 are mounted on bearings 54 for rotation relative to a housing 55.
  • the positions of the various vane members may be controlled by individual second motors 31, again as previously described.
  • Each vane pump is arranged to produce its own individual fluidic output as a function of the position of the associated member relative to its associated rotor.
  • the several vane pumps are operable independently of one another. They do share the fact that their respective rotors rotate about common shaft 53. However, the positions of the various members are controllable independently of one another so that each vane pump has its own independently- controllable fluidic output.
  • each second motor (not shown) is operatively arranged to rotate its associate member relative to the shaft axis y yi to vary the position of the member axis relative to the shaft axis.
  • a thin integrally-formed web-like annular boundary seal 54 separates a wet portion 55 of the second motor from a dry portion 56 of second motor 31.
  • the second motor has one portion 58 arranged on one side of the seal and has another portion 59 arranged on the other side of the seal.
  • the one portion may include a permanent magnet 58, and the other portion may include a coil 59.
  • Fig. 6 is a schematic view of a rotor and member of one vane pump, taken generally on line 6-6 of Fig. 5.
  • This view is generally similar to Fig. 2, but shows the member surface 29 as being non-concentrically arranged within the member outer surface 56.
  • Surface 56 is of radius R 3 , and is generated about member axis ys-y ⁇ .
  • rotation of the member relative to the housing (shown in Fig. 5) about member outer surface axis y 3 -y 3 will cause non- concentric rotation of the member inner surface 29 relative to the rotor.
  • This relative rotation between the member and housing will vary the volumes of chambers 62A-62F to vary the magnitude and direction of flow through the valve.
  • Fig. 7 is a schematic view of a portion of one vane pump, generally indicated at 65, showing a member 66 as being in its null position relative to a rotor 68.
  • Vane pump 65 is generally similar to the vane pump shown in Fig. 4.
  • the member axis y2- >2 is shown as being coincident with the rotor axis yi-yj.
  • the member is shown as having two fluid connections that communicate with two different vane chambers. The first is labeled Ci and the second is labeled C 2 .
  • Fig. 8A-c are a series of views, generally similar to Fig. 7, but showing the member as having been moved off-null to the right.
  • fluid from port Ci is shown as entering vane chamber 71A.
  • the rotor is shown as having rotated vane chamber 71A from a position that communicates with fluid inlet Ci in a clockwise direction through an arc- distance of 60° to an intermediate position.
  • the rotor is shown as having been further rotated in a clockwise direction relative to the member by an additional arc-distance of 60° such that vane chamber 71 A has been rotated to a position at which it communicates with fluid outlet C 2 .
  • a volume of fluid is shown as entering vane chamber 71A and being progressively conveyed in a clockwise direction relative to the member. Ultimately, the fluid is discharged through outlet C 2 .
  • FIGs. 9A-9C are a series of a view that depict the member as having been shifted left- wardly off-null from the position shown in Fig. 7.
  • fluid entering vane chamber 71 A communicating with fluid inlet C 2 is progressively conveyed as the rotor rotates in a clockwise direction within the member, and is ultimately discharged at fluid port C ⁇ .
  • the present invention broadly provides an improved vane pump that broadly includes a housing, a shaft, a first motor, a rotor mounted on the shaft for rotation therewith, and a member having a surface and a member axis.
  • the member axis is defined as being that location on the member when the member is in a null position relative to the rotor.
  • Vanes are mounted on the rotor, and have distal ends arranged to engage the member surface. These vanes define with the rotor and surface a plurality of fluid chambers, the individual volumes of which vary as a function of relative position between the rotor and the member surface.
  • the housing also has two fluid passageways that are operatively arranged to communicate with two of the chambers as a function of the angular position of the rotor relative to the housing.
  • a second motor is operatively arranged to selectively move the member relative to the shaft axis through a permissible range of motion. Movement of the member off- null in one direction along the range of motion will enable fluid flow in the first direction between the ports, and movement of the member off-null in the opposite direction along the range of motion will enable fluid flow in the opposite direction between the ports.
  • One unique feature of the invention is that the direction of fluid flow through the vane pump may be changed by simply moving the member relative to the rotor, but without changing the direction or speed of rotation of the rotor about the shaft axis. In other words, the direction of fluid flow through the vane pump may be changed without adversely affecting the inertia of the moving rotor.
  • the present invention contemplates that may changes and modifications may be made.
  • the shape and configuration of the rotor may be readily changed or modified.
  • the rotor has six slots, each of which is provided with a vane. This subdivides the space between the rotor and the member into six vane chambers.
  • the vanes may be moveable outwardly by centrifugal force. Alternatively, they may be spring-biased, or may be pushed outwardly by means of a fluid pressure.
  • the shape and configuration of the member may be changed.
  • the member is shown as having a cylindrical inwardly-facing surface against which the distal ends of the vanes act.
  • the invention is not limited to a member having an inwardly-facing cylindrical surface. Indeed, the member surface might be cylindrical, or might have some other shape, as desired.
  • the member may be movable along a linear path, an arcuate path, or a rotational path. The arrangement and shape of the member and housing ports may be readily changed or modified as desired.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention porte sur une pompe à palettes (20), qui comprend : une carcasse (21), un premier moteur (23) conçu pour faire tourner un arbre (22) monté autour de l'axe d'arbre, un rotor (24) monté pour tourner avec l'arbre, et un élément (28) ayant une surface (29) et ayant un axe d'élément. L'élément peut se déplacer par rapport à l'axe d'arbre sur une plage de mouvement admissible qui comprend des parties situées de part et d'autre d'une position nulle. Une palette (32) est montée de façon mobile dans chaque fente de rotor et présente une extrémité distale conçue pour s'accoupler à la surface d'élément. Les palettes définissent une pluralité de chambres (33A-33F) avec le rotor et la surface. Les volumes individuels des chambres varient en fonction de la position relative entre le rotor et la surface. Un second moteur (31) est agencé de façon fonctionnelle pour déplacer sélectivement l'élément par rapport à l'axe d'arbre sur la plage de mouvement admissible. Le mouvement de l'élément à partir de zéro dans une première direction le long de la plage de mouvement permettra un écoulement du fluide dans une première direction entre les orifices, tandis que le mouvement de l'élément à partir de zéro dans la direction opposée le long de la plage de mouvement permettra un écoulement de fluide dans la direction opposée entre les orifices.
PCT/US2012/065608 2012-11-16 2012-11-16 Pompes à palettes et leurs procédés de commande WO2014077835A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA2890682A CA2890682A1 (fr) 2012-11-16 2012-11-16 Pompes a palettes et leurs procedes de commande
EP12808552.9A EP2920468A1 (fr) 2012-11-16 2012-11-16 Pompes à palettes et leurs procédés de commande
CN201280077869.5A CN104995409A (zh) 2012-11-16 2012-11-16 叶轮泵和操作该叶轮泵的方法
JP2015543016A JP2015535056A (ja) 2012-11-16 2012-11-16 ベーン・ポンプ、及びその動作方法
PCT/US2012/065608 WO2014077835A1 (fr) 2012-11-16 2012-11-16 Pompes à palettes et leurs procédés de commande
US14/443,088 US20150292503A1 (en) 2012-11-16 2012-11-16 Vane pumps and methods of operating same
BR112015010868A BR112015010868A2 (pt) 2012-11-16 2012-11-16 bomba de palhetas, e, método para operar uma bomba de palhetas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2012/065608 WO2014077835A1 (fr) 2012-11-16 2012-11-16 Pompes à palettes et leurs procédés de commande

Publications (1)

Publication Number Publication Date
WO2014077835A1 true WO2014077835A1 (fr) 2014-05-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/065608 WO2014077835A1 (fr) 2012-11-16 2012-11-16 Pompes à palettes et leurs procédés de commande

Country Status (7)

Country Link
US (1) US20150292503A1 (fr)
EP (1) EP2920468A1 (fr)
JP (1) JP2015535056A (fr)
CN (1) CN104995409A (fr)
BR (1) BR112015010868A2 (fr)
CA (1) CA2890682A1 (fr)
WO (1) WO2014077835A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3028572A1 (fr) * 2014-11-19 2016-05-20 Renault Sa Pompe hydraulique a modules unitaires empilables pour modifier l'encombrement et la cylindree
WO2019063089A1 (fr) * 2017-09-29 2019-04-04 Pierburg Pump Technology Gmbh Pompe à palettes rotative à volume de transport variable

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11261868B2 (en) 2017-02-01 2022-03-01 Pierburg Pump Technology Gmbh Vane gas pump with sliding element trmporaily completely covering the elongated fluid outlet opening
US11990819B2 (en) * 2020-11-24 2024-05-21 Bosch Rexroth Corporation Electric and hydraulic machine

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US550466A (en) * 1895-11-26 Rotary pumping and motor apparatus
US2685842A (en) * 1948-11-18 1954-08-10 George H Hufferd Variable displacement pump and volume control therefor
US3807912A (en) * 1972-09-25 1974-04-30 Keller Corp Fluid flow device having high degree of flexibility
JPS59110882A (ja) * 1982-12-15 1984-06-26 Kayaba Ind Co Ltd 可変容量ベ−ンポンプ
US4578948A (en) * 1984-11-01 1986-04-01 Sundstrand Corporation Reversible flow vane pump with improved porting
US4619594A (en) 1985-05-13 1986-10-28 Lear Siegler, Inc. Stackable rotary vane pump with improved volumetric efficiency
US5037283A (en) 1990-01-19 1991-08-06 Lear Romec Corp. Vane type positive displacement pump having multiple pump units
US20010036411A1 (en) * 2000-02-15 2001-11-01 Walker Frank H. Reversible variable displacement hydraulic pump and motor
US20020139604A1 (en) * 2001-04-03 2002-10-03 Visteon Global Technologies, Inc. Auxiliary solenoid controlled variable displacement power steering pump
US6763797B1 (en) 2003-01-24 2004-07-20 General Motors Corporation Engine oil system with variable displacement pump
WO2007012096A2 (fr) * 2005-07-29 2007-02-01 Miba Sinter Holding Gmbh & Co Kg Pompe a palettes
EP2204583A2 (fr) * 2008-12-30 2010-07-07 Hamilton Sundstrand Corporation Pompe à palettes avec anneau rotatif et pression augmentée sous les palettes

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US4851723A (en) * 1988-08-01 1989-07-25 Westinghouse Electric Corp. Coolant pump system for variable speed generators
WO1997043518A1 (fr) * 1996-05-14 1997-11-20 Kasmer Hydristor Corporation Pompe hydraulique a palettes dotee d'une commande de bande flexible
US6527525B2 (en) * 2000-02-08 2003-03-04 Thomas E. Kasmer Hydristor control means

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US550466A (en) * 1895-11-26 Rotary pumping and motor apparatus
US2685842A (en) * 1948-11-18 1954-08-10 George H Hufferd Variable displacement pump and volume control therefor
US3807912A (en) * 1972-09-25 1974-04-30 Keller Corp Fluid flow device having high degree of flexibility
JPS59110882A (ja) * 1982-12-15 1984-06-26 Kayaba Ind Co Ltd 可変容量ベ−ンポンプ
US4578948A (en) * 1984-11-01 1986-04-01 Sundstrand Corporation Reversible flow vane pump with improved porting
US4619594A (en) 1985-05-13 1986-10-28 Lear Siegler, Inc. Stackable rotary vane pump with improved volumetric efficiency
US5037283A (en) 1990-01-19 1991-08-06 Lear Romec Corp. Vane type positive displacement pump having multiple pump units
US20010036411A1 (en) * 2000-02-15 2001-11-01 Walker Frank H. Reversible variable displacement hydraulic pump and motor
US20020139604A1 (en) * 2001-04-03 2002-10-03 Visteon Global Technologies, Inc. Auxiliary solenoid controlled variable displacement power steering pump
US6763797B1 (en) 2003-01-24 2004-07-20 General Motors Corporation Engine oil system with variable displacement pump
WO2007012096A2 (fr) * 2005-07-29 2007-02-01 Miba Sinter Holding Gmbh & Co Kg Pompe a palettes
EP2204583A2 (fr) * 2008-12-30 2010-07-07 Hamilton Sundstrand Corporation Pompe à palettes avec anneau rotatif et pression augmentée sous les palettes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3028572A1 (fr) * 2014-11-19 2016-05-20 Renault Sa Pompe hydraulique a modules unitaires empilables pour modifier l'encombrement et la cylindree
EP3023642A1 (fr) * 2014-11-19 2016-05-25 Renault S.A.S. Pompe hydraulique a modules unitaires empilables pour modifier l'encombrement et la cylindree
WO2019063089A1 (fr) * 2017-09-29 2019-04-04 Pierburg Pump Technology Gmbh Pompe à palettes rotative à volume de transport variable

Also Published As

Publication number Publication date
CA2890682A1 (fr) 2014-05-22
JP2015535056A (ja) 2015-12-07
BR112015010868A2 (pt) 2017-07-11
CN104995409A (zh) 2015-10-21
US20150292503A1 (en) 2015-10-15
EP2920468A1 (fr) 2015-09-23

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