CN101010514A - Blade for a single-blade vacuum pump - Google Patents

Blade for a single-blade vacuum pump Download PDF

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Publication number
CN101010514A
CN101010514A CNA2005800270353A CN200580027035A CN101010514A CN 101010514 A CN101010514 A CN 101010514A CN A2005800270353 A CNA2005800270353 A CN A2005800270353A CN 200580027035 A CN200580027035 A CN 200580027035A CN 101010514 A CN101010514 A CN 101010514A
Authority
CN
China
Prior art keywords
rotor
vacuum pump
vane vacuum
single vane
blade
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.)
Granted
Application number
CNA2005800270353A
Other languages
Chinese (zh)
Other versions
CN100529405C (en
Inventor
维利·施奈德
马丁·托马
弗里德黑尔姆·普菲策尔
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Joma Hydromechanic GmbH
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Joma Hydromechanic 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
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Application filed by Joma Hydromechanic GmbH filed Critical Joma Hydromechanic GmbH
Publication of CN101010514A publication Critical patent/CN101010514A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • 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
    • 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
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/22—Manufacture essentially without removing material by sintering
    • 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

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

Abstract

The invention relates to a single-blade vacuum pump comprising a pot-shaped housing (12), a rotor (18) mounted in the housing in such a way that it can be eccentrically rotated, a blade (20) mounted in the rotor in such a way that it can be orthogonally displaced in relation to the rotational axis, and a housing cover which is used to close the working regions separated by the blade (20). According to the invention, the rotor (18) at least partially consists of sintered metal.

Description

Single vane vacuum pump
Technical field
The present invention relates to a kind of single vane vacuum pump, it has cup-shaped shell, the eccentric outer housing cover that is installed in rotor in the shell rotationally, is installed in the working space that blade in the rotor and sealing separate by blade perpendicular to rotatingshaft movably.
Background technique
Known vacuum pump with this spline structure.It has the shell that is made of metal usually, and rotor is installed in rotation in this shell and working space is formed in this shell.The motor driven rotor of automobile for example.Be to be known that rotor is made of metal and is made by silicon carbide especially equally.Because the bigger weight of rotor, this rotor has bigger inertia torque, thereby the power drain of vacuum pump is high loathsomely.
Summary of the invention
Therefore task of the present invention is, a kind of vacuum pump is provided, and particularly has single vane vacuum pump of less power drain.
This task solves in the following manner by the single vane vacuum pump that starts described type according to the present invention, and promptly rotor to small part is made by silicon carbide.
The invention reside in, only the part of rotor is by the another kind of metal manufacturing with lower weight.Therefore the whole weight of rotor reduces and the moment of inertia reduction.Therefore can realize that the power drain of vacuum pump is littler than traditional equipment.The part that must transmit big moment of rotor is made of metal as previously mentioned especially, and the requirement of counter-rotor is now made by another kind of material than the section of small intensity with it.
Propose in an expansion scheme, described rotor has rotor shaft and the rotor case that is placed on the rotor shaft.This rotor shaft is used for introducing and is used for the desired torque of driven pump and makes blade-carrying rotor rotation.Rotor case is used to hold and guide blades.
Because the moment of driving force and effect when quickening and slow down mainly must be by the rotor shaft support, so rotor shaft is made by silicon carbide.Less important effect is played in power and torque such in guide blades, wherein notes the sealing problem in the part in front.Therefore rotor case according to the present invention is made of plastics.When plastics cooperated with metal, when here cooperating with the blade of being made by technology, plastics had outstanding frictional behavior, thereby frictional force is reduced to minimum, and this prevents excessive heating equally.
Last rotor case also can be used for two working spaces sealed to each other, by rotor case contact inner peripheral wall.If pump casing is made by technology and rotor case is made of plastics, frictional force reduces and obtains good sealing so.
The following plastics of preferred embodiment regulations are used for rotor case: polyether-ether-ketone (PEEK), polyether sulfone (PES), polystyrene syndiotactic polymer (SPS) or polyphenylene sulfide (PPS).These plastics are extremely wear-resisting and are lasting with respect to oiling agent.
Rotor case is inserted on the rotor shaft, particularly is inserted into vertically on the rotor shaft, realize the simple assembling of rotor.It is to be easy to and to set up under the situation of instrument not having especially that plug connects.This external vacuum pump does not have power along direction of insertion or in contrast to the direction of insertion effect when moving, so needn't worry to plug unclamping of connection.
Preferred variation of the present invention proposes, and the rotor shaft that is used to hold rotor case has at least two and is parallel to the outstanding axle of rotatingshaft.Relative with it, rotor case has two axle sleeves that can be inserted on the axle.The selection like this that the shape of axle and axle sleeve is favourable makes that not only rotor case is kept by rotor shaft regularly, and the directed force that keeps blade equally by axle sleeve by the axle support.
Axle extends beyond blades height at least a portion for this reason.In order can (10%-20% that it for example surpasses blades height extends) to keep equally regularly and guide blades when the short relatively axle, cover other do not run through engaging portion by axle and puts more energy into by means of supporter.Therefore save material and weight.
From dependent claims and wherein described in detail with reference to the accompanying drawings the following description of a particularly preferred embodiment and can draw other advantages of the present invention, feature and details.So illustrated in the accompanying drawings and the feature described in specification and the dependent claims according to essence of the present invention can be independent or in any way the combination.
Description of drawings
Shown in the drawings:
Fig. 1 illustrates the exploded view of vacuum pump;
Fig. 2 illustrates the perspective view of rotor shaft;
Fig. 3 illustrates the perspective view of rotor case; And
Fig. 4 illustrates the perspective view of the rotor case of the blade that has insertion.
Embodiment
In Fig. 1, represent whole vacuum pump, do not have the shell 12 of outer housing cover shown in it with reference character 10.This shell 12 has the inhalation interface 14 that leads in the inner chamber 16.Be provided with wholely with 18 rotors of representing in this inner chamber 16, blade 20 is installed in this rotor movably perpendicular to running shaft 21.Rotor 18 is made up of two-part and is had rotor shaft 22 and a rotor case 24.Rotor shaft 22 runs through splice enclosure 12, and it is outstanding from shell 12 overleaf particularly to run through the bottom 26 that engages inner chamber 18 and rectangular section 30 by drive openings 28, by this rectangular section (by means of unshowned driver) this rotor shaft is rotated.Drive openings 28 is provided with suitable sealing compound, so that oiling agent can not can not enter into inner chamber 16 from leaving inner chamber 16 and air and/or dirt.
As can be seen from Figure 2, section 30 is extended on the cylindrical segment 32 with circular cross section.In that to be connected with 34, two axles of disk (Dorn) 36 on the section 32 axially outstanding from this disk 34.Axle 36 is provided with recess 38, so that they always are made of wall 40 basically, this wall has the shape of letter " D ".Be provided with working surface 42 between two axles 36, this working surface is made of the top part of disk 34.The leptoprosopy of blade 20 abuts on this working surface 42.In addition, lubricant hole 44 is passed in this working surface 42, by this lubricant hole to working surface 42 and inner chamber 16 and/or blade 20 other working surface or common working surface supply of lubricant.
Fig. 3 illustrates the rotor case 24 with vertical cross-section, and described cross section is corresponding to " U " shape upset or that open wide downwards.Rotor case 24 has two axle sleeves 46, and they are connected to each other by bridge member 48.The at utmost middle vacant lot of these axle sleeves 46 structure, this as can be seen from Figure 4.Two axle sleeves 46 define two working surfaces 50 between them, the wide face of blade 20 abuts on this working surface.The following section between two axle sleeves 46 of last bridge member 48 constitutes working surface 52 simultaneously, and second leptoprosopy of blade 20 abuts on this working surface.Therefore can guide with being limited and move by working surface 42,50 and 52 blades 20 to the both sides of blade longitudinal shaft 54.
As finding out significantly from Fig. 4, axle sleeve 46 has first section 56 that axle 36 can be inserted.Second section 58 of same hollow structure is connected in first section 56, but supporter 60 extends in this second section, and these supporters are especially along about direction setting radially.Axle sleeve 46 equally mainly is made of the wall that has basically " D shape ".Therefore the weight of rotor case 24 is quite little.
Because axle 36 same middle vacant lot structures are so its quality is determined by the weight of wall 40.In a preferred embodiment, rectangular section 30 equally also middle vacant lot is designed, thereby reduces its quality.The space of this hollow extends to lubricant hole 44 from the free end of section 30 always.This hollow space is by the restriction of oblong walls basically of section 30.
In improvement project of the present invention, the side direction of cylindrical segment 32 surpasses the also middle vacant lot of the part structure of section 30, and wherein this hollow space extends to the following of disk 34 always and have the cross section of D shape basically on each face.So quality of the section of reducing 32.
The part of rotor 18 is made by silicon carbide, and another part is a working of plastics, so further reduces the weight of rotor 18.Especially, rotor case 24 is made of plastics.Therefore working surface 50 and 52 and the frictional fit of the best on the surface of blade 20 can be provided.

Claims (14)

1. a single vane vacuum pump (10), it has cup-shaped shell (12); The eccentric rotor (18) that is installed in rotationally in the shell (12); Be installed in blade (20) in the rotor (18) movably perpendicular to rotatingshaft; And the outer housing cover that seals the working space that separates by blade (20), it is characterized in that rotor (18) is at least in part by the silicon carbide manufacturing.
2. single vane vacuum pump as claimed in claim 1 is characterized in that, described rotor (18) has rotor shaft (22) and is placed in rotor case (24) on the rotor shaft (22).
3. single vane vacuum pump as claimed in claim 2 is characterized in that, rotor shaft (22) is made by silicon carbide.
4. as claim 2 or 3 described single vane vacuum pumps, it is characterized in that rotor case (24) is made of plastics.
5. single vane vacuum pump as claimed in claim 4 is characterized in that, plastics are polyether-ether-ketone (PEEK), polyether sulfone (PES), polystyrene syndiotactic polymer (SPS) or polyphenylene sulfide (PPS).
6. as each described single vane vacuum pump in the claim 2 to 5, it is characterized in that described rotor case (24) is inserted on the described rotor shaft (22).
7. single vane vacuum pump as claimed in claim 6 is characterized in that, the rotor shaft (22) that is used to hold rotor case (24) has at least two and is parallel to the outstanding axle (36) of rotatingshaft.
8. single vane vacuum pump as claimed in claim 7 is characterized in that, rotor case (24) has two axle sleeves (46) that can be inserted on the axle (36).
9. as claim 7 or 8 described single vane vacuum pumps, it is characterized in that axle (36) extends beyond height at least a portion of blade (20).
10. as claim 8 and 9 described single vane vacuum pumps, it is characterized in that axle sleeve (46) other do not run through engaging portion (58) by axle (36) and put more energy into by means of supporter (60).
11. each described single vane vacuum pump in the claim is characterized in that as described above, vacant lot constitutes in the rotor (18).
12., it is characterized in that rotor shaft (22) and/or rotor case (24) have hollow space as each described single vane vacuum pump in the claim 2 to 11.
13., it is characterized in that rotor shaft (22) has three hollow spaces as each described single vane vacuum pump in the claim 2 to 12.
14. each described single vane vacuum pump in the claim is characterized in that rotor (18) is only partly made by silicon carbide as described above.
CNB2005800270353A 2004-07-09 2005-04-20 Blade for a single-blade vacuum pump Active CN100529405C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004034925.8 2004-07-09
DE102004034925A DE102004034925B3 (en) 2004-07-09 2004-07-09 A single-blade

Publications (2)

Publication Number Publication Date
CN101010514A true CN101010514A (en) 2007-08-01
CN100529405C CN100529405C (en) 2009-08-19

Family

ID=34967982

Family Applications (2)

Application Number Title Priority Date Filing Date
CNB2005800270353A Active CN100529405C (en) 2004-07-09 2005-04-20 Blade for a single-blade vacuum pump
CNA2005800271619A Pending CN101002024A (en) 2004-07-09 2005-06-30 Blade for a single-blade vacuum pump

Family Applications After (1)

Application Number Title Priority Date Filing Date
CNA2005800271619A Pending CN101002024A (en) 2004-07-09 2005-06-30 Blade for a single-blade vacuum pump

Country Status (6)

Country Link
EP (2) EP1766240B1 (en)
KR (2) KR101131741B1 (en)
CN (2) CN100529405C (en)
CA (2) CA2575775A1 (en)
DE (3) DE102004034925B3 (en)
WO (2) WO2006005380A1 (en)

Families Citing this family (10)

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DE102006016243A1 (en) 2006-03-31 2007-10-04 Joma-Hydromechanic Gmbh Rotor pump`s e.g. vacuum pump, vane, has vane body comprising frame work structure with internal compartment walls transverse to longitudinal direction of vane, where internal compartment walls run in longitudinal axis
ITTO20060673A1 (en) * 2006-09-21 2008-03-22 Vhit Spa PALETTE ROTARY PUMP
DE112008003014A5 (en) * 2007-11-13 2010-09-16 Ixetic Hückeswagen Gmbh sintered rotor
WO2012010397A2 (en) * 2010-07-03 2012-01-26 Mahle International Gmbh Rotary vane pump
DE112012002375A5 (en) * 2011-06-07 2014-02-27 Ixetic Bad Homburg Gmbh Rotor for a vane pump
US8961148B2 (en) 2011-07-19 2015-02-24 Douglas G. Hunter Unified variable displacement oil pump and vacuum pump
WO2015053064A1 (en) 2013-10-07 2015-04-16 三桜工業株式会社 Negative-pressure pump and cylinder head cover
KR101909783B1 (en) * 2016-02-11 2018-10-18 김경수 Rotary vane Pump or vacuum pump in motion of synchronous rotation with casing
US10982673B2 (en) 2016-03-07 2021-04-20 Pierburg Pump Technology Gmbh Automotive vacuum pump
JP6826561B2 (en) 2018-07-11 2021-02-03 大豊工業株式会社 Vane pump

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Also Published As

Publication number Publication date
WO2006005445A1 (en) 2006-01-19
DE502005002006D1 (en) 2007-12-27
CA2575890A1 (en) 2006-01-19
CA2575775A1 (en) 2006-01-19
CN100529405C (en) 2009-08-19
WO2006005380A1 (en) 2006-01-19
KR101131741B1 (en) 2012-04-05
DE502005002846D1 (en) 2008-03-27
CN101002024A (en) 2007-07-18
EP1766242B1 (en) 2008-02-13
EP1766240B1 (en) 2007-11-14
DE102004034925B3 (en) 2006-02-16
KR20070034092A (en) 2007-03-27
EP1766240A1 (en) 2007-03-28
KR101225346B1 (en) 2013-01-23
KR20070042547A (en) 2007-04-23
EP1766242A1 (en) 2007-03-28

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Owner name: JOMA-POLYTEC GMBH

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