WO2018092645A1 - Pompe à palettes - Google Patents

Pompe à palettes Download PDF

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Publication number
WO2018092645A1
WO2018092645A1 PCT/JP2017/040168 JP2017040168W WO2018092645A1 WO 2018092645 A1 WO2018092645 A1 WO 2018092645A1 JP 2017040168 W JP2017040168 W JP 2017040168W WO 2018092645 A1 WO2018092645 A1 WO 2018092645A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
rotor
side plate
hole
protrusion
Prior art date
Application number
PCT/JP2017/040168
Other languages
English (en)
Japanese (ja)
Inventor
浩一朗 赤塚
義之 牧
Original Assignee
Ｋｙｂ株式会社
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 Ｋｙｂ株式会社 filed Critical Ｋｙｂ株式会社
Priority to US16/344,681 priority Critical patent/US20190301452A1/en
Priority to CN201780065393.6A priority patent/CN109863306B/zh
Priority to DE112017005841.4T priority patent/DE112017005841T5/de
Publication of WO2018092645A1 publication Critical patent/WO2018092645A1/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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C11/008—Enclosed motor pump units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/603—Centering; Aligning
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • the present invention relates to a vane pump.
  • JP 2013-136965 A discloses an electric vane pump including an electric motor and a vane pump driven by the power of the electric motor.
  • the electric vane pump disclosed in Japanese Patent Laid-Open No. 2013-136965 may be manufactured by assembling an electric motor and a vane pump separately after assembling them separately. In that case, the assembly of the electric motor and the vane pump is performed by inserting the shaft of the electric motor into the through hole of the rotor of the vane pump.
  • the present invention aims to improve the assembling property of the vane pump.
  • a vane pump having a through hole to which a drive shaft is coupled, a plurality of vanes provided so as to be reciprocally movable in a radial direction with respect to the rotor, and the rotor.
  • the cam ring is housed and the tip of the vane is in sliding contact with the inner peripheral surface as the rotor rotates, the housing housing the rotor and the cam ring, and the rotor and the bottom surface of the housing.
  • the vane pump 100 is used, for example, as a hydraulic supply source that supplies hydraulic oil (working fluid) to hydraulic equipment such as a continuously variable transmission mounted on a vehicle.
  • the vane pump 100 is driven by the power of the electric motor 1.
  • the vane pump 100 and the electric motor 1 are coaxially connected via the drive shaft 4.
  • the electric motor 1 includes a drive shaft 4 rotatably supported by a motor housing 3 via bearings 2a and 2b, a motor rotor 5 having a plurality of permanent magnets arranged in the circumferential direction and fixed to the drive shaft 4, a motor A stator 6 fixed to the inner periphery of the housing 3 and wound with a coil.
  • the motor rotor 5 and the stator 6 are arranged concentrically, and a slight gap exists between them.
  • the motor housing 3 includes a substantially bottomed cylindrical main body 3a and a motor cover 3b that closes the opening of the main body 3a and is connected to the vane pump 100.
  • the main body 3a and the motor cover 3b are assembled together by fitting an annular spigot 3c formed on the motor cover 3b to the inner peripheral surface of the main body 3a.
  • the bearing 2a is fixed to the bottom of the main body 3a, and the bearing 2b is fixed to the inner peripheral surface of the hollow 3d of the motor cover 3b.
  • the drive shaft 4 is rotatably supported by the two bearings 2a and 2b, and extends through the hollow portion 3d of the motor cover 3b.
  • the drive shaft 4 is configured not as a component of the vane pump 100 but as a component of the electric motor 1.
  • the vane pump 100 accommodates the pump rotor 31 connected to the drive shaft 4, a plurality of vanes 32 that are reciprocally movable in the radial direction with respect to the pump rotor 31, and the rotation of the pump rotor 31. Accordingly, a cam ring 33 in which the tip end portion of the vane 32 is slidably contacted with the inner peripheral cam surface, and a pump housing 40 that houses the pump rotor 31 and the cam ring 33 are provided.
  • the drive shaft 4 is supported only by bearings 2a and 2b provided in the electric motor 1, and the vane pump 100 is not provided with a bearing that supports the drive shaft 4.
  • a male spline 4a is formed on the outer peripheral surface of the end of the drive shaft 4 on the vane pump 100 side.
  • the pump rotor 31 is an annular member, and a through hole 31a through which the drive shaft 4 is inserted is formed in the center of the pump rotor 31.
  • a female spline 31b (see FIG. 2) in which the male spline 4a of the drive shaft 4 is engaged is formed on the inner peripheral surface of the through hole 31a.
  • the drive shaft 4 and the pump rotor 31 are connected by spline coupling.
  • the illustration of the female spline 31b is omitted.
  • a plurality of pump chambers 34 are defined by the outer peripheral surface of the pump rotor 31, the cam surface of the cam ring 33, and the adjacent vanes 32.
  • the cam ring 33 is a substantially elliptical annular member with a cam surface having a minor axis and a major axis.
  • the cam surface of the cam ring 33 includes two suction regions that expand the volume of the pump chamber 34 as the pump rotor 31 rotates, and two discharge regions that contract the volume of the pump chamber 34 as the pump rotor 31 rotates. Have.
  • the first side plate 36 is disposed in contact with one side of the pump rotor 31 and the cam ring 33, and the second side plate 37 is disposed in contact with the other side.
  • the first side plate 36 and the second side plate 37 are arranged with the pump rotor 31 and the cam ring 33 sandwiched from both sides, and define the pump chamber 34.
  • the first side plate 36 is disposed between the pump rotor 31 and the bottom surface 40b of the pump housing 40.
  • the second side plate 37 is disposed between the pump rotor 31 and the motor cover 3b.
  • the pump rotor 31, the cam ring 33, the first side plate 36, and the second side plate 37 are accommodated in a pump accommodating portion 40a formed in the pump housing 40 in a concave shape.
  • the pump housing 40 and the motor cover 3 b are fastened by bolts, and the opening of the pump housing portion 40 a is closed by the motor cover 3 b of the motor housing 3.
  • the first side plate 36 is a disk-shaped member, and has two discharge ports 36a formed penetrating in an arc shape.
  • the discharge port 36 a opens corresponding to the discharge region of the cam ring 33 and discharges the hydraulic oil in the pump chamber 34.
  • the first side plate 36 is integrally formed with a protrusion 50 that is inserted into the through hole 31 a of the pump rotor 31.
  • the protrusion 50 protrudes from the center of the side surface of the first side plate 36 and is formed in a concentric columnar shape with the through hole 31 a of the pump rotor 31. Gaps are formed between the outer peripheral surface 50 a of the protrusion 50 and the inner peripheral surface of the through hole 31 a and between the front end surface 50 b of the protrusion 50 and the front end surface 4 b of the drive shaft 4. That is, the protrusion 50 does not hit the drive shaft 4 and the pump rotor 31 when the drive shaft 4 and the pump rotor 31 rotate.
  • the function of the protrusion 50 will be described in detail later.
  • the second side plate 37 is an annular member, and a through hole 37a through which the drive shaft 4 is inserted is formed in the center of the second side plate 37.
  • two suction ports (not shown) are formed in the outer periphery of the second side plate 37 by notching them in an arc shape. The two suction ports open corresponding to the two suction areas of the cam ring 33 and guide the hydraulic oil to the pump chamber 34.
  • the second side plate 37 is not an essential component of the vane pump 100 and can be eliminated.
  • the first side plate 36 and the motor cover 3b define the pump chamber 34 with the pump rotor 31 and the cam ring 33 sandwiched from both sides.
  • the relative rotation of the cam ring 33, the first side plate 36 and the second side plate 37 is restricted by the two positioning pins 46. Thereby, the positioning of the suction region of the cam ring 33 and the suction port of the second side plate 37 and the positioning of the discharge region of the cam ring 33 and the discharge port 36a of the first side plate 36 are performed.
  • the positioning pin 46 is inserted through the cam ring 33 and the second side plate 37, one end is inserted into the positioning hole 36d formed in the first side plate 36, and the other end is inserted into the positioning hole 3e formed in the motor cover 3b. Is done.
  • the cam ring 33, the first side plate 36, and the second side plate 37 are positioned with respect to the motor cover 3b by the positioning pins 46.
  • a seal member 45 is provided on the inner peripheral surface of the hollow portion 3d of the motor cover 3b so that the outer peripheral surface of the drive shaft 4 is in sliding contact.
  • the seal member 45 prevents hydraulic fluid from leaking from the vane pump 100 to the electric motor 1.
  • the high pressure chamber 42 communicating with the discharge port 36a of the first side plate 36 is formed in an annular shape on the bottom surface 40b of the pump housing portion 40a.
  • the high pressure chamber 42 is partitioned by the first side plate 36 disposed on the bottom surface 40b of the pump housing portion 40a.
  • the high pressure chamber 42 communicates with a discharge passage 41 that is formed in the outer surface of the pump housing 40.
  • a suction passage (not shown) communicating with the suction port of the second side plate 37 is also formed.
  • the suction passage communicates with a tank in which hydraulic oil is stored.
  • each pump chamber 34 in the cam ring 33 is operated through the suction port of the second side plate 37.
  • the oil is sucked and the hydraulic oil is discharged to the high pressure chamber 42 through the discharge port 36 a of the first side plate 36.
  • the hydraulic oil in the high pressure chamber 42 is supplied to the hydraulic equipment through the discharge passage 41.
  • each pump chamber 34 in the cam ring 33 supplies and discharges hydraulic oil by expansion and contraction accompanying the rotation of the pump rotor 31.
  • FIG. 2 is a view showing a state before the electric motor 1 and the vane pump 100 are assembled. As shown in FIG. 2, the case where the electric motor 1 and the vane pump 100 are assembled with the drive shaft 4 of the electric motor 1 in a direction perpendicular to the vertical direction will be described.
  • the electric motor 1 and the vane pump 100 are assembled by inserting the drive shaft 4 of the electric motor 1 into the through hole 31a of the pump rotor 31 of the vane pump 100 and inserting the positioning pin 46 of the vane pump 100 into the positioning hole 3e of the motor cover 3b. After that, the pump housing 40 and the motor cover 3b are fastened with bolts. This will be described in detail below.
  • the pump rotor 31 Before the electric motor 1 and the vane pump 100 are assembled, in the vane pump 100, the pump rotor 31 is not fixed and is free to move in the cam ring 33, and therefore falls to the bottom in the cam ring 33 due to gravity. In that case, the pump rotor 31 moves relative to the second side plate 37 in the vertical direction, and the positions of the through holes 31 a of the pump rotor 31 and the through holes 37 a of the second side plate 37 are shifted. Thereby, a part of the through hole 37 a of the second side plate 37 is blocked by the side surface of the pump rotor 31.
  • the first side plate 36 of the vane pump 100 is formed with a protrusion 50 to be inserted into the through hole 31a of the pump rotor 31.
  • the pump rotor 31 protrudes when the inner peripheral surface of the through hole 31 a of the pump rotor 31 contacts the outer peripheral surface 50 a of the protrusion 50. 50, the drop of the pump rotor 31 in the cam ring 33 is regulated. Therefore, the positional deviation between the through hole 31a of the pump rotor 31 and the through hole 37a of the second side plate 37 is slight.
  • the pump rotor corresponds to the gap between the outer peripheral surface 50a of the protrusion 50 and the inner peripheral surface of the through hole 31a.
  • the positions of the through holes 31 a of the 31 and the through holes 37 a of the second side plate 37 are shifted.
  • the tip end surface 4b of the drive shaft 4 is The tapered surface 4c formed on the outer peripheral edge comes into contact with the inner peripheral edge 31c of the through hole 31a of the pump rotor 31, and the pump rotor 31 is lifted upward.
  • the male spline 4a of the drive shaft 4 enters the female spline 31b, and the male spline 4a and the female spline 31b are coupled.
  • the protrusion 50 and the through hole 31a of the pump rotor 31 are arranged concentrically as shown in FIG.
  • a gap exists between the outer peripheral surface 50a of the protrusion 50 and the inner peripheral surface of the through hole 31a.
  • the protrusion 50 determines the position of the pump rotor 31 within the cam ring 33 when the drive shaft 4 is inserted into the through hole 31a of the pump rotor 31, and facilitates insertion of the drive shaft 4 into the through hole 31a. It has a function to make.
  • the drive shaft 4 is inserted into the through hole 31a of the pump rotor 31 because the first side plate 36 is formed with the protrusion 50 that is inserted into the through hole 31a of the pump rotor 31.
  • the pump rotor 31 is positioned in the cam ring 33 by the protrusion 50. Therefore, since the center of the pump rotor 31 and the cam ring 33 is prevented from being greatly displaced, the assembling property of the vane pump 100 can be improved.
  • the protrusion 50 may be formed integrally with the first side plate 36.
  • the protrusion 50 may be formed separately from the first side plate 36.
  • the columnar protrusion 50 may be press-fitted into the groove 36 b formed on the side surface of the first side plate 36.
  • the side surface of the first side plate 36 on which the pump rotor 31 slides needs to be polished in order to improve the sliding characteristics of the pump rotor 31.
  • this polishing operation is difficult to perform.
  • the protrusion 50 is formed separately from the first side plate 36, the first side plate 36 can be polished before the protrusion 50 is press-fitted into the groove 36 b of the first side plate 36. Therefore, the workability of the polishing work is improved.
  • FIG. 4 is a side view of the first side plate 36 as viewed from the pump rotor 31 side.
  • Three protrusions 51 are provided in the same circle at intervals of 120 degrees.
  • only one protrusion 51 may be provided on the vertical line.
  • the drive shaft 4 is not limited to a form rotated by the power of the electric motor 1.
  • it may be rotated by the power of the engine. That is, the vane pump 100 is not limited to the structure assembled to the electric motor 1.
  • the vane pump 200 which concerns on 2nd Embodiment of this invention is demonstrated. Below, it demonstrates centering on a different point from the said 1st Embodiment, the same code
  • the first side plate 36 is formed with the protrusion 50 to be inserted into the through hole 31a of the pump rotor 31, whereas in the vane pump 200, the pump rotor 31 is disposed in the pump housing 40.
  • a protrusion 60 to be inserted into the through hole 31a is formed. This will be described in detail below.
  • the protrusion 60 protrudes from the center of the bottom surface 40 b of the pump housing 40 and is formed integrally with the pump housing 40.
  • the protrusion 60 is formed in a cylindrical shape concentric with the through hole 31 a of the pump rotor 31 through the through hole 36 c formed in the first side plate 36.
  • a gap is formed between the outer peripheral surface 60 a of the protrusion 60 and the inner peripheral surface of the through hole 31 a and between the front end surface 60 b of the protrusion 60 and the front end surface 4 b of the drive shaft 4. That is, the projection 60 does not hit the drive shaft 4 and the pump rotor 31 when the drive shaft 4 and the pump rotor 31 are rotated.
  • the protrusion 60 may be formed separately from the pump housing 40 and may be press-fitted into a groove formed in the bottom surface 40b of the pump housing 40.
  • the seal member 61 is provided so as to surround the outer periphery of the protrusion 60.
  • the vane pumps 100 and 200 accommodate a pump rotor 31 having a through hole 31 a to which the drive shaft 4 is connected, a plurality of vanes 32 provided so as to be capable of reciprocating in the radial direction with respect to the pump rotor 31, and the pump rotor 31.
  • the cam ring 33 in which the tip of the vane 32 is slidably contacted with the inner peripheral surface
  • the pump housing 40 housing the pump rotor 31 and the cam ring 33, and the bottom surface 40b of the pump rotor 31 and the pump housing 40.
  • the first side plate 36 or the pump housing 40 is formed with protrusions 50 and 60 that are inserted into the through holes 31 a of the pump rotor 31.
  • the first side plate 36 or the pump housing 40 is formed with the protrusions 50 and 60 that are inserted into the through holes 31 a of the pump rotor 31.
  • the pump rotor 31 is positioned in the cam ring 33 by the protrusions 50 and 60. Therefore, since the center of the pump rotor 31 and the cam ring 33 is prevented from being largely displaced, the assembling property of the vane pumps 100 and 200 can be improved.
  • the protrusions 50 and 60 determine the position of the pump rotor 31 in the cam ring 33 when the drive shaft 4 is inserted into the through hole 31 a of the pump rotor 31.
  • the protrusion 50 is formed concentrically with the through hole 31 a of the pump rotor 31, between the outer peripheral surface 50 a of the protrusion 50 and the inner peripheral surface of the through hole 31 a, and between the tip surface 50 b of the protrusion 50 and the drive shaft 4.
  • a gap is formed between the front end surface 4a.
  • the protrusion 50 does not interfere with the drive shaft 4 and the pump rotor 31 when the drive shaft 4 and the pump rotor 31 are rotated.
  • the protrusion 50 is press-fitted into a groove 36 b formed on the side surface of the first side plate 36.
  • the protrusion 50 is formed separately from the first side plate 36, the first side plate 36 can be polished before the protrusion 50 is press-fitted into the groove 36 b of the first side plate 36. Therefore, the workability of the polishing work is improved.
  • the protrusion 60 protrudes from the bottom surface 40b of the pump housing 40 and is provided through the through hole 36c formed in the first side plate 36.

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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)

Abstract

L'invention concerne une pompe à palettes (100) comprenant : un rotor de pompe (31) ayant un trou traversant (31a) auquel un arbre d'entraînement (4) est relié ; un carter de pompe (40) destiné à loger le rotor de pompe (31) et un anneau elliptique (33) ; et une première plaque latérale (36) disposée entre le rotor de pompe (31) et une surface inférieure (40b) du carter de pompe (40), des saillies (50, 60), qui sont insérées dans le trou traversant (31a) du rotor de pompe (31), sont formées sur la première plaque latérale (36) ou le carter de pompe (40).
PCT/JP2017/040168 2016-11-18 2017-11-08 Pompe à palettes WO2018092645A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US16/344,681 US20190301452A1 (en) 2016-11-18 2017-11-08 Vane pump
CN201780065393.6A CN109863306B (zh) 2016-11-18 2017-11-08 叶片泵
DE112017005841.4T DE112017005841T5 (de) 2016-11-18 2017-11-08 Flügelzellenpumpe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-225216 2016-11-18
JP2016225216A JP6546895B2 (ja) 2016-11-18 2016-11-18 ベーンポンプ

Publications (1)

Publication Number Publication Date
WO2018092645A1 true WO2018092645A1 (fr) 2018-05-24

Family

ID=62145407

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/040168 WO2018092645A1 (fr) 2016-11-18 2017-11-08 Pompe à palettes

Country Status (5)

Country Link
US (1) US20190301452A1 (fr)
JP (1) JP6546895B2 (fr)
CN (1) CN109863306B (fr)
DE (1) DE112017005841T5 (fr)
WO (1) WO2018092645A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6928726B2 (ja) 2018-11-09 2021-09-01 Ｋｙｂ株式会社 電動ポンプ
JP2020169577A (ja) 2019-04-01 2020-10-15 Ｋｙｂ株式会社 ベーンポンプ

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS575983U (fr) * 1980-06-10 1982-01-12
JPS58155289A (ja) * 1982-03-09 1983-09-14 Nissan Motor Co Ltd ベ−ン形流体装置
JPH0525035U (ja) * 1991-09-13 1993-04-02 光洋精工株式会社 四輪駆動車用駆動力伝達装置
JPH07127709A (ja) * 1993-10-29 1995-05-16 Toyota Motor Corp 自動変速機用オイルポンプの支持構造

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JP2008223549A (ja) * 2007-03-09 2008-09-25 Matsushita Electric Works Ltd ベーンポンプ
JP2012047074A (ja) * 2010-08-25 2012-03-08 Panasonic Electric Works Co Ltd ベーンポンプ
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DE112017005841T5 (de) 2019-08-14
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JP2018080687A (ja) 2018-05-24
JP6546895B2 (ja) 2019-07-17

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