WO2014010677A1 - Structure pour prédire l'usure de palette dans un mécanisme à palettes - Google Patents

Structure pour prédire l'usure de palette dans un mécanisme à palettes Download PDF

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Publication number
WO2014010677A1
WO2014010677A1 PCT/JP2013/068998 JP2013068998W WO2014010677A1 WO 2014010677 A1 WO2014010677 A1 WO 2014010677A1 JP 2013068998 W JP2013068998 W JP 2013068998W WO 2014010677 A1 WO2014010677 A1 WO 2014010677A1
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WO
WIPO (PCT)
Prior art keywords
vane
wear
groove
cylinder chamber
rotor
Prior art date
Application number
PCT/JP2013/068998
Other languages
English (en)
Japanese (ja)
Inventor
晴大 小寺
鈴木　賢一
範幸 斉藤
秀城 遠藤
環 樫山
Original Assignee
株式会社ミクニ
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 株式会社ミクニ filed Critical 株式会社ミクニ
Publication of WO2014010677A1 publication Critical patent/WO2014010677A1/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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • 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
    • F01C21/0854—Vane tracking; control therefor by fluid means
    • F01C21/0863—Vane tracking; control therefor by fluid means the fluid being the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/16—Wear

Definitions

  • the present invention relates to a vane wear prediction structure of a vane machine that enables prediction of vane wear by deterioration operation.
  • An electric vehicle that runs on a motor using a secondary battery as a power source uses an electric vacuum pump that is a vane mechanism to ensure the negative pressure required for the assist brake system (ensure assist power). It has been.
  • the vacuum pump employs a structure in which a circular cylinder chamber having a suction hole and a discharge hole, a rotor rotatably accommodated in the cylinder chamber, and a plurality of vanes (plate shape) are combined.
  • a plurality of vane grooves are formed radially on the outer peripheral surface of the rotor, the base end side of the vane is housed in these vane grooves so that the vane can move forward and backward, and the tip of the vane is brought into contact with the inner peripheral surface of the cylinder chamber.
  • a structure by centrifugal force or a spring member that partitions the cylinder chamber into a plurality of parts is used. That is, the negative pressure is generated by sliding the vane along the inner peripheral surface of the cylinder chamber by the rotation of the rotor.
  • the vacuum pump employs a vane that can withstand the normal use period, thereby extending the life of the vane so that the pump function is not lost. Nevertheless, it is conceivable that the wear of the vane reaches the wear limit depending on the usage situation beyond the expected.
  • an object of the present invention is to provide a vane wear prediction structure for a vane machine that can predict that the wear of the vane is close to the wear limit due to the rapid performance deterioration.
  • the present invention provides the rotor with a communication passage that relays the inside of the vane groove to communicate two different chambers in the cylinder chamber, and the passage portion of the communication passage that relays the inside of the vane groove has
  • the vane is normally closed by the vane contained in the vane groove, and is opened when the vane wear proceeds by a predetermined amount (claim 1).
  • the opening in the passage portion of the communication path is when the vane is worn close to the wear limit (Claim 2).
  • the vane has a through-hole communicating with two different chambers so that the deterioration operation is more easily induced.
  • the through-hole is normally closed by the wall surface of the vane groove, and the vane wears a predetermined amount.
  • the structure that appears outside the vane groove as it progresses is also used (claim 3).
  • the vane machine is intentionally induced to deteriorate by using the communication passage formed in the rotor, so that the vane machine may suddenly deteriorate in performance due to vane wear. It is possible to predict that the vane has approached the wear limit from the fact that it has approached, that is, from the determination of the operating condition of the vane mechanism (claim 1).
  • the whole sectional view which shows the electric vacuum pump (vane mechanism) which concerns on the 1st Embodiment of this invention with the assist brake system of the electric vehicle which employ
  • the disassembled perspective view which shows the structure of the pump part of the same electric vacuum pump.
  • the front view which shows a part of communicating path formed in the rotor of the pump part.
  • the perspective view which shows each part of the communication path.
  • the front view which shows the driving
  • the front view of the pump part which shows the principal part of the 2nd Embodiment of this invention.
  • the front view of the pump part which shows the principal part of the 4th Embodiment of this invention.
  • FIG. 1 shows an electric vacuum pump (corresponding to the vane mechanism of the present application) to which the present invention is applied, together with an assist brake system of an electric vehicle (electric vehicle) incorporating the pump, and FIGS. 2 to 5 show parts of the electric vacuum pump.
  • FIG. 1 is a dash panel that partitions the inside and outside of a compartment 2 of an electric vehicle (electric vehicle), and 4 is installed on the lower side of the dash panel 1.
  • the negative pressure booster 5 is a hydraulic master cylinder device connected to the output side of the booster 4.
  • a brake pedal 8 is provided at the end of the operating rod 6 that extends from the master cylinder device 5 into the vehicle compartment 2 through the diaphragm plate 4 a built in the booster 4.
  • the hydraulic output section 5a of the master cylinder device 5 is connected to a brake device (not shown) such as a disc brake or a drum brake that applies a braking force to each wheel (front and rear wheels) of the electric vehicle via a hydraulic pipe 9.
  • a brake device such as a disc brake or a drum brake that applies a braking force to each wheel (front and rear wheels) of the electric vehicle via a hydraulic pipe 9.
  • the brake pedal 8 When the brake pedal 8 is depressed, the hydraulic pressure can be supplied to the brake device of each wheel while being assisted by the negative pressure (applying brake force). That is, since an electric vehicle does not have an engine that is a source of negative pressure unlike a vehicle equipped with an engine, a vacuum pump that is a vane machine, such as an electric vacuum pump 10, is provided in the negative pressure inlet portion 4 b of the booster 4. Is connected.
  • the negative pressure required for assisting the brake operation is supplied from the electric vacuum pump 10 to the booster 4.
  • the electric vacuum pump 10 and the booster 4 are connected by a
  • the electric vacuum pump 10 includes, for example, a rotary vane type pump unit 14 connected (directly connected) to an output shaft 12a (rotary shaft) of a horizontally oriented motor unit 12, and a bottomed cylindrical pump cover 15 around the pump unit 14.
  • the structure covered with is used.
  • the pump unit 14 is provided with flat-shaped pump covers 18 a and 18 b on both sides of the circular pump ring 16 to form a circular cylinder chamber 19 therein.
  • a circular rotor 21 connected to the output shaft 12 a of the motor unit 12 is accommodated in the cylinder chamber 19.
  • the rotor 21 is disposed at a position eccentric from the center of the pump ring 16 (cylinder chamber 19), and is driven to rotate about the eccentric position.
  • a plurality of, here five, vanes 23 are installed on the outer peripheral surface of the rotor 21 at regular intervals so as to protrude.
  • five vane grooves 25 are provided on the outer peripheral surface of the rotor 21 at equal intervals in an oblique direction.
  • the vane grooves 25 are all formed by grooves extending in the width direction of the rotor 21.
  • Each vane 23 uses a vane formed in a plate shape with a carbon member so that smooth sliding can be performed without using lubricating oil (non-lubricating oil type).
  • Each vane 23 is formed in a square shape corresponding to the width dimension (pump ring width) of the vane groove 25.
  • Each vane 23 is slidably received in each vane groove 25 from the base end side, and the tip end side of each vane 23 is installed so as to be able to jump out (retract). That is, each vane 23 protrudes outward by a centrifugal force generated by the rotation of the rotor 21 to generate a negative pressure.
  • each vane 23 comes into contact with the inner peripheral surface of the cylinder chamber 19 (the inner peripheral surface of the pump ring 16) to partition the cylinder chamber 19 into a plurality of parts. Further, each vane 23 moves while contacting the inner peripheral surface of the cylinder chamber 19 according to the rotation of the rotor 21 (sliding), for example, from the suction hole 27 formed in the pump cover 18a, for example, the pump unit 14 Air in the booster 4 is scraped out through a negative pressure suction part 17a (shown in FIG. 1) provided in the frame part 17 that supports the connection hose 11 connected to the negative pressure suction part 17a.
  • a negative pressure suction part 17a shown in FIG. 1
  • the scraped air is discharged to the outside (outside air) from, for example, a discharge hole 28 formed in the pump cover 18a, and the negative pressure generated at this time is supplied to the negative pressure chamber 4c partitioned by the diaphragm plate 4a.
  • the negative pressure generated by the electric vacuum pump 10 is supplied to the booster 4 as a force for assisting the brake operation.
  • each vane 23 a vane having a performance that can sufficiently withstand a normal assumed usage period is employed. In other words, each vane 23 strives to extend its life and prevent breakage in an assumed use situation. Even so, it is conceivable that the wear of each vane 23 reaches the wear limit and causes breakage depending on the usage situation more than expected. For example, an unlubricated electric vacuum pump using carbon vanes as a lubricant has a high tendency. Therefore, each part of the rotor 21 is provided with a vane wear prediction structure that makes it possible to predict that the wear limit of the vane 23 has been approached as shown in FIGS. This structure is configured by providing the communication path 30 in the rotor 21.
  • the communication passage 30 is a passage that relays through the vane groove 25 and communicates with two different chambers in the cylinder chamber 19. When the wear of the vane 23 approaches the wear limit, the vane 23 relays the vane groove 25. Opening the passage portion intentionally induces an operation with a considerably deteriorated performance from an operation that normally exhibits normal performance.
  • the communication passage 30 is formed using a straight through hole 30a that is easy to process.
  • the through hole 30 a is inserted into the bottom of each vane groove 25, for example, the bottom of the center in the width direction, and the tip of a drill tool (not shown) is inserted.
  • the tip of a drill tool (not shown) is inserted.
  • a passage through the vane groove 25, that is, the vane groove 25 is interposed in the middle, and the vane 23 in the vane groove 25 is here between two different chambers.
  • a communication passage 30 is formed to communicate between the two chambers on both sides of the wall.
  • the opening 30b of the through hole 30a that opens on both wall surfaces of the vane groove 25 is normally closed by the wall surface of the vane 23 as indicated by a solid line in FIG.
  • the wear limit part where a sudden pump function failure occurs due to vane wear
  • the opening position is determined so that the two chambers 19a and 19b (two different chambers) arranged near the suction hole 27 communicate with each other at a predetermined position, that is, in the initial stage of suction, and the wear of the vane 23 reaches the wear limit.
  • the two chambers 19 a and 19 b on both sides of the vane partitioned by the vane 23 in the initial stage of suction are connected through the communication passage 30. In other words, the pump performance is deteriorated.
  • the communication path 30 may have a structure using one vane groove 25 instead of a structure using two adjacent vane grooves 25.
  • the communication passages 30 are formed from the outer peripheral surfaces of the rotors on both sides of each vane groove 25 toward the bottom wall surface of the vane groove 25 and drilled in an oblique direction with a drill tool or the like, so that the bottom side of the vane groove 25 is formed.
  • You may comprise from the structure of the V-shaped through-hole which connects the two chambers which made vertices apex. With this structure, it is possible to predict that the wear of the vane 23 is approaching the wear limit. That is, as shown in FIG. 5, in the electric vacuum pump 10, as the rotor 21 is driven (rotated) by the motor unit 12, each vane 23 on the outer peripheral surface protrudes outward by centrifugal force, The portion is pressed against the inner peripheral surface of the cylinder chamber 19.
  • each vane 23 moves while being in contact with the inner peripheral surface of the cylinder chamber 19. At this time, due to a change (small) in the space volume of the chamber partitioned by each vane 23, air is scraped out from the suction hole 27 and exhausted from the discharge hole 28 to the atmosphere. Thereby, the negative pressure generated by the electric vacuum pump 10 is applied to the booster 4. By the operation of the electric vacuum pump 10 (normal operation), wear at the tip of each vane 23 gradually proceeds.
  • the electric vacuum pump 10 Due to the occurrence of this leakage, the electric vacuum pump 10 is not an operation that exhibits the normal pump performance until then, but a considerably deteriorated pump operation in which the performance of scraping air is inferior. From the intentionally induced deterioration operation of the electric vacuum pump 10, the current operation state of the electric vacuum pump 10 is changed to a situation where the pump function may be lost due to vane wear (a situation where performance deterioration occurs suddenly). ). That is, it is possible to determine, that is, to predict that the vane 23 is approaching the wear limit from the change in the operating state of the electric vacuum pump 10 caused by the communication passage 30.
  • FIG. 7 shows a main part of the second embodiment of the present invention.
  • the present invention is applied to an electric vacuum pump having three vanes 23.
  • the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. Even such an electric vacuum pump has the same effects as those of the first embodiment.
  • 8 to 11 show the main part of the third embodiment of the present invention.
  • the vane 23 is provided with a communication structure, so that the two chambers 19a, 19a, 19b (two different chambers) are communicated with each other so that the deterioration operation in the electric vacuum pump is easily induced.
  • this embodiment is different from the first embodiment in the structure on the vane 23 side, that is, each vane 23 communicates with two different chambers 19 a and 19 b in the cylinder chamber 19.
  • a through-hole 40 is formed, and the through-hole 40 is normally blocked by the wall surface of the vane groove 25, so that when the wear of the vane 23 progresses to a predetermined amount, here the wear limit L, it appears outside the vane groove 25. It is a thing.
  • the through hole 40 of the vane 23 is provided so as to penetrate the vane portion accommodated in the vane groove 25 in the thickness direction.
  • a rectangular opening is used for the through hole 40.
  • the through hole 40 is positioned in front of the wear limit L of the vane 23 indicated by a one-dot chain line in FIG. When the vicinity of the wear limit of the vane 23 approaches the inner peripheral surface of the cylinder chamber 19, the through hole 40 starts to appear outside the vane groove 25 at the initial stage of suction.
  • the through hole 40 appears outside the vane groove 25. That is, the through hole 40 is disposed in the cylinder chamber 19. Then, the two chambers 19a and 19b that should be partitioned by the vane 23 are communicated with each other through the through-opening 40, and the air in the chamber 19a leaks into the chamber 19b (adjacent chamber). This air leakage is performed together with the air leakage from the communication passage 30 described in the first embodiment, and causes a large amount of air leakage. For this reason, the electric vacuum pump is easily induced to operate with degraded pump performance.
  • FIGS. 8 to 11 the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • FIG. 12 shows a main part of the fourth embodiment of the present invention.
  • the present invention is applied to a vane machine in which a vane is provided on the inner peripheral surface of a cylinder chamber, for example, a vane compressor, instead of an electric vacuum pump (vane machine) in which a vane is provided in a rotor.
  • the vane compressor accommodates a rotor 47 in a circular cylinder chamber 46 formed by a cylinder ring 45 so as to be eccentrically rotatable, and is provided with a vane groove 48 on the inner peripheral surface of the cylinder chamber 46.
  • the vane 49 is accommodated in the groove 48 so as to protrude, and the tip of the vane 49 is configured to contact the outer peripheral surface of the rotor 47.
  • the volume of the cylinder chamber 46 partitioned by the vane 49 is changed to perform the compression operation.
  • communication passages 51 are provided so that when a predetermined amount of wear of the vane 49 has progressed, an operation with degraded compressor performance is induced.
  • the communication passage 51 is formed by, for example, penetrating through the cylinder chamber 19 while crossing the front end side of the vane groove 48, for example, two through holes 51a on both sides of the cylinder ring 45 with the vane groove 48 interposed therebetween. Constructed (X form).
  • a communication passage 51 is formed on the cylinder chamber 46 side, which relays the inside of the vane groove 48 and communicates two different chambers 46a and 46b in the cylinder chamber 46.
  • the intersecting portion (passage portion) that relays the inside of the vane groove 48 of the communication passage 51 is normally closed by the vane 49 in the vane groove 48, and the wear of the vane 49 reaches a predetermined amount, here near the wear limit of the vane 49. It will be released as it progresses. As a result, even in the vane type compressor, it is possible to predict that the vane 49 is approaching the wear limit as in the first embodiment.
  • the present invention may be applied to a vane machine using other vanes.
  • the present invention is not limited to the first to fourth embodiments described above, and may be implemented in various ways without departing from the spirit of the present invention.
  • the communication path 30 of the above-described embodiment is formed from a through hole
  • the present invention is not limited to this, and a communication groove may be formed by forming a through groove on the side surface of the rotor 21 or the cylinder ring 45.
  • the structure is not limited.
  • the structure in which the two chambers on both sides of the vane are communicated with each other has been described.
  • any structure may be used as long as the two chambers in the cylinder chamber communicate with each other. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention porte sur une structure pour prédire l'usure de palette, qui est conçue de façon qu'un rotor (21) présente un passage de communication (30) qui passe en relais à travers une rainure de palette (25) et qui communique en passant par deux chambres différentes (19a, 19b) dans une chambre de cylindre (19), et de telle sorte qu'une partie de communication de relais est fermée à tout moment par une palette montée dans les rainures de palette, mais s'ouvre lorsque l'usure de la palette a progressé d'un degré prédéterminé. Cela amène la partie de communication qui passe en relais par la rainure de palette, qui était précédemment fermée par la palette, à s'ouvrir lorsque l'usure de la palette a progressé jusqu'à atteindre le degré prédéterminé et amène deux chambres séparés par la palette à communiquer à travers le passage de communication. A ce moment, au lieu de l'opération précédente qui présentait une performance régulière, il se produit un passage à une opération dont la performance s'est considérablement détériorée. Cette opération détériorée délibérément induite permet de prédire des circonstances dans lesquelles la palette s'approche d'une limite d'usure.
PCT/JP2013/068998 2012-07-12 2013-07-11 Structure pour prédire l'usure de palette dans un mécanisme à palettes WO2014010677A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-156544 2012-07-12
JP2012156544A JP5816140B2 (ja) 2012-07-12 2012-07-12 ベーン機械のベーン摩耗予測構造

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WO2014010677A1 true WO2014010677A1 (fr) 2014-01-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12049827B2 (en) 2022-03-31 2024-07-30 Goodrich Corporation Vane wearing detection

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6826660B2 (ja) 2017-04-28 2021-02-03 株式会社ミクニ ベーンポンプ
DE112017007488B4 (de) 2017-04-28 2024-03-14 Mikuni Corporation Flügelzellenpumpe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108582U (fr) * 1985-12-26 1987-07-10
JPH0211885A (ja) * 1988-06-30 1990-01-16 Ulvac Corp 油回転真空ポンプ
JP2006144682A (ja) * 2004-11-22 2006-06-08 Matsushita Electric Ind Co Ltd 気体ポンプ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108582U (fr) * 1985-12-26 1987-07-10
JPH0211885A (ja) * 1988-06-30 1990-01-16 Ulvac Corp 油回転真空ポンプ
JP2006144682A (ja) * 2004-11-22 2006-06-08 Matsushita Electric Ind Co Ltd 気体ポンプ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12049827B2 (en) 2022-03-31 2024-07-30 Goodrich Corporation Vane wearing detection

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JP5816140B2 (ja) 2015-11-18
JP2014020213A (ja) 2014-02-03

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