EP2524111A2 - Pompe à palettes - Google Patents

Pompe à palettes

Info

Publication number
EP2524111A2
EP2524111A2 EP11700120A EP11700120A EP2524111A2 EP 2524111 A2 EP2524111 A2 EP 2524111A2 EP 11700120 A EP11700120 A EP 11700120A EP 11700120 A EP11700120 A EP 11700120A EP 2524111 A2 EP2524111 A2 EP 2524111A2
Authority
EP
European Patent Office
Prior art keywords
vane pump
pump according
housing body
wing
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11700120A
Other languages
German (de)
English (en)
Inventor
Torsten Helle
Benjamin Pyrdok
Willi Schneider
Dirk Ehrenfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Joma Polytec GmbH
Original Assignee
Joma Polytec GmbH
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 Joma Polytec GmbH filed Critical Joma Polytec GmbH
Publication of EP2524111A2 publication Critical patent/EP2524111A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • F01C21/0881—Construction of vanes or vane holders the vanes consisting of two or more parts
    • 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
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/001—Radial sealings for working fluid
    • F04C27/004—Radial sealing elements specially adapted for intermeshing-engagement type pumps, e.g. gear pumps

Definitions

  • the invention relates to a vane pump with a sleeve-shaped housing body, a bottom and a lid having a pump housing, the bottom and the lid axially close the housing body, with a eccentrically arranged in the housing body and rotatably mounted in the bottom and cover rotor, and one or more wings , which are mounted displaceably in the rotor in the axial direction.
  • Vane pumps are known in multiple configurations. They serve to compress gaseous media to create a negative pressure or to promote gaseous or liquid media.
  • a plurality of vanes are slidably supported in a rotor eccentrically arranged in the pump housing, so that between the vanes and between the rotor and the inner peripheral surface of the stator housing forming a pump housing, the work spaces are formed, whose volume is constantly changing, i. is enlarged and reduced.
  • the blades are thrown outwards with the rotor rotating due to the centrifugal force and rub against the inner circumferential surface of the pump housing. As a result, the respective working space is sealed off from the adjacent work spaces.
  • the seal is supported by the fact that the surfaces of the components are wetted with lubricating oil. But this lubricating oil also serves to reduce the friction forces, whereby the power loss of the pump is reduced. As a disadvantage, however, considered that inevitably the pumped fluid is wetted with lubricant and may need to be cleaned before it is either reused or discharged into the open. In addition, lubricant is consumed.
  • the invention has for its object to provide a vane pump, which has a lower lubricant consumption and in which the funded fluid is lubricant-free.
  • each wing has at its axial end sides bearing journals which engage in the bottom and the lid.
  • the wing is not only slidably mounted in the rotor in the radial direction, so that it can oscillate in the radial direction in accordance with the eccentric arrangement of the rotor in the pump housing with respect to the rotor, but it also has journals which are in the ground and in engage the lid, so that the wing can be selectively controlled via these journals. This is possible because both the bottom and the lid are stationary and thus rotate around the journals in the bottom and in the lid.
  • the bottom and the lid each have a guideway for the bearing pin, wherein the bearing pins engage clearance or with little play in the guideways.
  • the guideways are formed as a groove, wherein the guideway in particular has a circular shape and is coaxial with the inner peripheral surface of the housing body.
  • the wings always have a defined position with respect to the inner peripheral surface of the housing body, which has the advantage that this position is taken even if the rotor does not rotate. At low speeds, where the centrifugal force is also low, this ensures that the wings still occupy a defined position, so that even at low speeds, optimal delivery results are achieved. This is e.g. at the start of an internal combustion engine advantageous if the vane pump works as a lubricant pump. In this case, the lubricant is already promoted at the start of the engine and not only at higher speeds.
  • the bearing pin is formed by a bolt mounted in the wing.
  • the wing can be prepared as usual, for example as an injection molded part or as a die-cast part, and only has to be provided with the bearing journal. This can for example be injected directly into the injection molded part.
  • the free end of the bolt which projects axially beyond the wing, carries a bearing, in particular a deep groove ball bearing.
  • This deep groove ball bearing engages in the guideway and runs around in the bottom and in the lid.
  • the deep groove ball bearing is preferably self-lubricating, so that can be dispensed with additional lubrication.
  • An essential feature of the invention is seen in the fact that there is a gap between the radially outer wing tip and the inner peripheral surface of the housing body. This gap ensures that no frictional forces between the wing and the housing body arise, whereby on the one hand the wing is not subject to wear, on the other hand, the power loss of the pump is low.
  • the gap is in a range between 5 .mu.m to 100 .mu.m and in particular between 10 .mu.m and 50 .mu.m.
  • a sealing strip may be disposed on the radially outer wing tip.
  • In one embodiment extends in the radially outer wing tip extending in the longitudinal direction of the wing groove in which a wing tip projecting sealing strip is arranged.
  • This sealing strip is floatingly mounted in the groove so that it can perform relative movements with respect to the wing. When the rotor rotates, this sealing strip is pressed or thrown against the inner peripheral surface of the housing body and thereby seals the working space completely. Since the sealing strip has an almost negligible weight compared to the wing, the frictional forces are minimal.
  • the sealing strip made of metal, in particular of light metal or a plastic, which is fiber-reinforced, for example.
  • Such sealing strips on the one hand have a low weight and on the other hand are sufficiently resistant to wear.
  • the vane pump according to the invention without lubricant, that is operated dry.
  • the advantage is achieved that the pumped medium is not contaminated, and thus oil separator and the like at the output of the vane pump are not required.
  • Figure 1 is a perspective view of the vane pump according to the invention.
  • Figure 2 is a side view in the direction of arrow II of Figure 1;
  • Figure 3 is a perspective view of Figure 1 with the housing cover removed;
  • FIG. 4 shows a section IV-IV according to FIG. 2;
  • FIG. 5 shows a section V-V according to FIG. 4
  • FIG. 6 shows a section VI-VI according to FIG. 4.
  • Figure 7 is a perspective view of a wing, partially cut away.
  • FIG. 1 shows a vane pump 10, which essentially has a housing body 12 with cooling ribs 14, a bottom 16 with attachment tabs 18 and a cover 20 with a fastening tab 22.
  • outlet and inlet openings 24 and 26 in the cover 20 and a flange 28 can be seen, on which a (not shown) drive can be fastened, which engages on a drive shaft 30.
  • the housing body 12 is constructed substantially sleeve-like and surrounds a rotor 32 which is mounted eccentrically in the housing body 12 and from which the drive shaft 30 protrudes.
  • the rotor 32 has a substantially cylindrical shape and is provided with receiving slots 34 which extend in the axial direction and are open edge both on the circumference of the rotor 32 and on its end faces.
  • the rotor 32 is provided with a plurality of axial bores 36 and 38, wherein the bores 38 are located at the bottom of the receiving slots 34 and the bores 36 between the receiving slots 34.
  • wings 40 which are mounted so that they can move in the radial direction.
  • Two adjacent wings 40, the peripheral surface 42 of the rotor 32 and the inner peripheral surface 44 of the housing body 12 each form a working space 46, in which the trapped fluid is transported from the inlet opening 26 to the outlet opening 24.
  • inlet opening 26 and the outlet opening 24 are connected via overflow channels 48 in the housing body 12 to crescent-shaped inlets and outlets 50 and 52 opening into the working spaces 46.
  • FIG. 5 clearly shows that the working spaces 46 permanently increase and decrease and that the wings 40 protrude more or less far into the receiving slots 34 of the rotor 32.
  • FIG. 7 shows such a wing 40, which is provided at its two end faces 54 with bearing pins 56 which are formed by bolts 58 which engage in the wing 40 and protrude beyond the end face 54 and a bearing 60, for example a deep groove ball bearing 62nd , wear.
  • the cover 20 has a guide track 66 formed as a groove 64, in which the deep groove ball bearings 62 are guided.
  • the groove 64 thus forms a positive control for the wings 40, since the groove 64 is coaxial with the inner peripheral surface of the housing body 12 and thus eccentrically to the rotor 32 and its drive shaft 30.
  • the position of the guide track 66 and the radial dimension of the wings 40 and their position in the rotor 32 are dimensioned so that the wing tip 68 ( Figure 7) permanently has a distance from the inner peripheral surface 44 of the housing body 12, which is in the range of 5 .mu.m to 100 .mu.m lies.
  • the guideway 66 accordingly has a position ensuring this gap or distance from the inner circumferential surface 44, taking into account that the vanes 40 are arranged radially in the rotor 32 but are inclined with respect to the housing body 12, in particular its inner peripheral surface 44, to the orthogonal. This means that with a consistently large gap, the inner circumferential surface 44 and / or the guide track 66 has or deviate from the circular shape.
  • the gap can vary within certain limits, however.
  • the wing tip 68 has a groove 70 extending in the longitudinal direction of the wing 40 into which a sealing strip 72 is inserted, which in turn slightly projects beyond the wing tip 68.
  • the sealing strip 72 is floating in the groove 70 and can move in particular in the direction of the inner peripheral surface 44 of the housing body 12.
  • the sealing strip 72 has the task that it bridges the gap between the wing 40 and the inner peripheral surface 44 of the housing body 12 and seals. In particular, in the case of a permanently changing gap, the latter is effectively closed, it being ensured that the wing tip 68 does not touch the inner peripheral surface 44 of the housing body 12. Since the sealing strip 72 consists in particular of plastic, it has a low weight, so that the friction forces are negligible. In addition, the sealing strip 72 is easily and easily replaceable.

Landscapes

  • 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 comprenant un carter de pompe pourvu d'un corps en forme de douille, d'un fond et d'un couvercle, le fond et le couvercle fermant le corps du carter axialement, un rotor disposé de manière excentrée dans le corps du carter et monté rotatif dans le fond et le couvercle, ainsi qu'une ou plusieurs palettes montées mobiles dans le rotor dans le sens axial, chaque palette présentant sur ses faces frontales axiales des tourillons venant en prise dans le fond et dans le couvercle.
EP11700120A 2010-01-15 2011-01-04 Pompe à palettes Withdrawn EP2524111A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010000947.4A DE102010000947B4 (de) 2010-01-15 2010-01-15 Flügelzellenpumpe
PCT/EP2011/050069 WO2011086013A2 (fr) 2010-01-15 2011-01-04 Pompe à palettes

Publications (1)

Publication Number Publication Date
EP2524111A2 true EP2524111A2 (fr) 2012-11-21

Family

ID=44304719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11700120A Withdrawn EP2524111A2 (fr) 2010-01-15 2011-01-04 Pompe à palettes

Country Status (6)

Country Link
US (1) US20130022487A1 (fr)
EP (1) EP2524111A2 (fr)
KR (1) KR20120112790A (fr)
CN (1) CN102844525A (fr)
DE (1) DE102010000947B4 (fr)
WO (1) WO2011086013A2 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20159158A1 (it) * 2015-12-23 2017-06-23 Vhit Spa Pompa volumetrica a palette
CN105626533B (zh) * 2015-12-25 2017-12-15 常州市武进广宇花辊机械有限公司 旋片式真空泵
CN106640648A (zh) * 2017-01-13 2017-05-10 南通荣恒环保设备有限公司 一种滑片根部滚轮限位的回转式风机
CN107218213B (zh) * 2017-08-03 2018-10-26 太原科技大学 摆动叶片泵
DE102017117988A1 (de) * 2017-08-08 2019-02-14 Kameliya Filipova Ganeva Pneumatische oder hydraulische Vorrichtung
CN108005900A (zh) * 2017-11-23 2018-05-08 陈永辉 一种偏心曲线转子装置
CN108590772A (zh) * 2018-03-20 2018-09-28 罗德凯 一种提高机械效率的防磨损叶片式转子机械结构
CN108501915B (zh) * 2018-04-25 2021-02-02 罗德凯 一种叶片式刹车制动***
EP3617512B1 (fr) * 2018-08-28 2022-11-30 Pfeiffer Vacuum Gmbh Pompe à vide du distributeur rotatif
KR102223283B1 (ko) * 2018-11-16 2021-03-05 엘지전자 주식회사 베인 로터리 압축기
KR102370523B1 (ko) 2020-03-25 2022-03-04 엘지전자 주식회사 로터리 압축기
KR102370499B1 (ko) 2020-03-25 2022-03-04 엘지전자 주식회사 로터리 압축기
KR102301479B1 (ko) 2020-03-27 2021-09-13 엘지전자 주식회사 로터리 압축기
KR102367895B1 (ko) * 2020-05-22 2022-02-25 엘지전자 주식회사 로터리 압축기
KR102387189B1 (ko) 2020-05-22 2022-04-15 엘지전자 주식회사 로터리 압축기
KR102349747B1 (ko) 2020-05-22 2022-01-11 엘지전자 주식회사 로터리 압축기
KR102378399B1 (ko) 2020-07-03 2022-03-24 엘지전자 주식회사 로터리 압축기
CN117212143B (zh) * 2023-10-31 2024-02-13 福力德泰克(上海)泵业有限公司 一种抑制间隙回流的叶片泵

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DE8313036U1 (de) * 1983-05-03 1985-09-26 Kathmann, Peter B., Solothurn Rotationskolbenmaschine

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US3294454A (en) * 1964-09-30 1966-12-27 Eugene E Foerster Reciprocating vane type rotary pump
DE2742217A1 (de) * 1977-09-20 1979-03-22 Josef Bertrams Prinzip eines einzellaeufer-differenzkraftmotor, mehrstufen-einzellaeufer- differenzkraftmotor und varianten von motor- und pumpenlaeufer
US4212603A (en) * 1978-08-18 1980-07-15 Smolinski Ronald E Rotary vane machine with cam follower retaining means
DE3108819A1 (de) * 1981-03-09 1982-11-25 Kommanditgesellschaft RMC Rotationsmaschinen GmbH + Co, 2000 Hamburg Verfahren zur ausbildung eines kompressionsraumes in einer rotationskolbenmaschine
WO1982001032A1 (fr) * 1980-09-11 1982-04-01 Kathmann P Machine a piston rotatif
EP0158064B1 (fr) * 1984-03-23 1989-12-27 Volkswagen Aktiengesellschaft Etanchéité pour machine à déplacement positif pour fluides compressibles
US4958995A (en) * 1986-07-22 1990-09-25 Eagle Industry Co., Ltd. Vane pump with annular recesses to control vane extension
JPH0244075Y2 (fr) * 1986-11-21 1990-11-22
US4859163A (en) * 1987-06-25 1989-08-22 Steven Schuller Performance Inc. Rotary pump having vanes guided by bearing blocks
US5051078A (en) * 1989-07-05 1991-09-24 Lew Hyok S Rotary pump-flowmeter
US5242285A (en) * 1989-12-12 1993-09-07 Acd, Inc. Cryogenic vane pump
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US5181843A (en) * 1992-01-14 1993-01-26 Autocam Corporation Internally constrained vane compressor
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EP1637739A1 (fr) * 2004-09-20 2006-03-22 Maso Process-Pumpen GmbH Pompe à palette avec stator en deux parties

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Publication number Priority date Publication date Assignee Title
DE8313036U1 (de) * 1983-05-03 1985-09-26 Kathmann, Peter B., Solothurn Rotationskolbenmaschine

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Title
See also references of WO2011086013A2 *

Also Published As

Publication number Publication date
WO2011086013A3 (fr) 2012-05-10
US20130022487A1 (en) 2013-01-24
DE102010000947A1 (de) 2011-07-21
WO2011086013A2 (fr) 2011-07-21
CN102844525A (zh) 2012-12-26
DE102010000947B4 (de) 2015-09-10
KR20120112790A (ko) 2012-10-11

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