CN103314216A - Single-vane pump - Google Patents

Single-vane pump Download PDF

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Publication number
CN103314216A
CN103314216A CN2011800521766A CN201180052176A CN103314216A CN 103314216 A CN103314216 A CN 103314216A CN 2011800521766 A CN2011800521766 A CN 2011800521766A CN 201180052176 A CN201180052176 A CN 201180052176A CN 103314216 A CN103314216 A CN 103314216A
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CN
China
Prior art keywords
rotor
axial
axial end
single vane
end portion
Prior art date
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Granted
Application number
CN2011800521766A
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Chinese (zh)
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CN103314216B (en
Inventor
朱塞佩·洛比恩度
卡尔洛·帕克提
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.)
O·M·P·奥菲奇内·马佐科·帕尼奥尼有限公司
O M P Officine Mazzocco Pagnoni Srl
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O M P Officine Mazzocco Pagnoni Srl
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Publication of CN103314216A publication Critical patent/CN103314216A/en
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Publication of CN103314216B publication Critical patent/CN103314216B/en
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    • 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
    • F04C18/3442—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 the surfaces of the inner and outer member, forming the inlet and outlet opening
    • 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
    • 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
    • F04C2250/00—Geometry
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Saccharide Compounds (AREA)

Abstract

The invention concerns a single-vane pump (110) comprising a stator (12) in which a chamber (14) is defined and a rotor (116) that is rotatable around a rotation axis (0-0). The rotor (116) comprises a cylindrical central portion (116a) having a predetermined diameter (D) and opposed cylindrical axial end portions (116b) each having a diameter equal to said predetermined diameter (D). The rotor (116) is rotatably supported into the chamber (14) at said opposed axial end portions (116b). A vane (18) is slidably mounted in a respective substantially radial groove (20) of said rotor (116, 216). The rotor (116) has a predetermined overall height (Hi) and a diameter equal to said predetermined diameter (D) along said overall height (HI).; The stator (12) comprises a pump body (12a) and a lid (12b) which closes the pump body (12a), the pump body (12a) and the closing lid (12b) being provided with respective seats (122a, 122b) for housing the axial end portions (116b) of the rotor (116). Each seat (122a, 122b) comprises an axial abutment surface (123) for a respective axial end portion (116b) of the rotor (116). The axial distance (H2) between the axial abutment surfaces (123) of said seats (122a, 122b) is greater than the overall height (Hi) of the rotor (116).

Description

Single vane pump
Technical field
The present invention relates to a kind of single vane pump.
Particularly, the present invention relates to a kind of single vane vacuum pump of the motor for motor vehicle, such vacuum pump is intended to produce predetermined pressure with activation and the operation of the specific function that is used for arranging at motor vehicle, for example servobrake of braking system.
This specification is specifically related to a kind of vacuum pump from start to finish, under any circumstance is understandable that, the content of specification also is applied to dissimilar pumps usually.
Background technique
Usually, single vane vacuum pump is included in the stator that wherein limits chamber, can and be slidably mounted in blade in the corresponding radial groove of rotor around the spin axis rotor rotated.
The rotor of being made by plastic materials under many situations comprises column middle body and the axial end portion part with predetermined radii, this axial end portion part also have the shape of column but its radius less than the radius of middle body.Rotor is partly located rotatably to be supported in the chamber at its axial end portion.For this reason, stator is provided with the seat for the axial end portion part of rotor.
Document FR 2845735 has disclosed the single vane vacuum pump that has the rotor that plastic materials makes of the above-mentioned type.
The known single vane vacuum pump that is provided with the rotor that is made of plastics also, in described rotor, two axial end portions parts all have the shape of column and the diameter littler than the diameter of middle body.In this case, above-mentioned two axial end portions partly are accommodated in the corresponding seat that compatibly is formed in the stator.Document EP 1361365 discloses such single vane vacuum pump.
In the single vane pump of the prior art, be necessary to determine that rotor can rotate freely and do not produce obstruction in stator.In addition, what be necessary is, guarantees the sealing of working fluid (air in the situation at vacuum pump) between the axial end portion part of rotor and corresponding seat.Above-mentioned aspect is really depended in the operation of pump largely.
Therefore, in the pump of prior art, the axial end portion of rotor part must be extremely accurately with the connecting of corresponding seat in being formed on stator.Particularly, be necessary to determine the bus of cylinder surface of axial end portion part of rotor and the accurate quadrature of plat surface of stator, the column middle body of rotor abuts against on this plat surface.The plat surface of above-mentioned stator then must be vertical with the bus of the cylinder surface of the middle body of rotor.For this reason, need very little axial dimension tolerance between rotor and the stator, be generally 0.03～0.04mm.
In order to reach above-mentioned requirement, carry out specific machining on the surface of rotor and stator.Particularly, the column middle body of rotor and axial end portion part both stand grinding, and rotor is carried out so-called " side of asking (squaring) ".Such operation has influenced the ultimate cost of rotor and single vane pump significantly, has influenced the production time in addition.
The fact that the other shortcoming of pump relates in the prior art described above is, partly locates at the axial end portion of rotor by the pulling just of rotor of live axle, and as already mentioned, this axial end portion partly has relatively little diameter.The arm of force that pulls moment of torsion that is applied to rotor is therefore relatively little, thereby is created in the height connection power at the interface between axle and the rotor, and the corresponding quick wearing and tearing that connect the surface.
Summary of the invention
Be to overcome based on technical problem of the present invention, perhaps reduce the above-mentioned shortcoming that relates to prior art at least.
Therefore the present invention relates to a kind of single vane pump with the described feature of claim 1.
In other claims, preferable feature is described.
Advantageously, single vane pump according to the present invention is saved cost than the single vane pump of prior art, but performance is identical.Really, can make rotor by simple mode, and need specifically not process for " side of asking ".Particularly, after the molded single process of plastic materials, can be considered " finishing " rotor.And, as hereinafter will describing in detail of this specification, big relatively diameter owing to the axial end portion part can provide the big relatively arm of force for the moment of torsion that pulls of rotor, and is accompanied by the favourable reduction of the connection power (therefore wearing and tearing) in axle-rotor connection place.
Description of drawings
Additional features of the present invention and advantage will become more clear from detailed description of preferred embodiment more of the present invention, accompanying drawing is used for reference to and provides and be not used in as indication the purpose of restriction.In these figure:
Fig. 1 is the schematic representation according to the longitudinal component of the single vane pump of disclosure in document FR 2845735 of basis particularly of prior art;
Fig. 2 is the schematic representation according to the longitudinal component of single vane pump of the present invention;
Fig. 3 is first embodiment's of the rotor that can use in the single vane pump of the present invention schematic representation of vertical local part;
Fig. 4 is the schematic cross-section according to the rotor of Fig. 3 of planar line IV-IV intercepting;
Fig. 5 is second embodiment's of the rotor that can use in the single vane pump of the present invention schematic representation of longitudinal component;
Fig. 6 is the floor map of Fig. 5 rotor;
Fig. 7 is the floor map for the metal joint of the rotor of Fig. 5;
Fig. 8 is the schematic representation according to the cross section of the metal joint of Fig. 7 of planar line VIII-VIII intercepting.
Embodiment
At first with reference to figure 1, show the single vane pump according to prior art.This pump is represented with reference character 10 integral body.
Single vane pump 10 comprises stator 12, defines chamber 14 in this stator 12.Rotor 16 is accommodated in chamber 14 inside, and rotor 16 can rotate around spin axis O-O.Blade 18 is slidably mounted in accordingly roughly in the radial groove 20 of rotor 16.
Rotor 16 comprises column middle body 16a with predetermined diameter D and has columnar shape and less than the axial end portion part of the diameter D1 of diameter D.Rotor 16 rotatably is supported in the chamber 14 at axial end portion part 16b place.
Stator 12 comprises the lid 12b of pump housing 12a and sealing pump housing 12a.Pump housing 12a is provided be used to the seat 22 that holds axial end portion part 16b.
With reference to figure 2-Fig. 8, schematically shown according to single vane pump of the present invention.This pump is represented with reference character 110 integral body.
In Fig. 2-Fig. 8, identical or equivalent configurations element is represented by identical figure mark and will can not described again at the structural element of function aspects and the single vane pump of describing in the above with reference to figure 1 10.
In a preferred embodiment, the vacuum pump of single vane pump 110 of the present invention for being intended in the motor of motor vehicle, use.
Single vane pump 110 of the present invention and the single vane pump 10 of prior art have essence different, and reason is that the 116b of end sections to axial of the rotor 116 of pump 110 has the diameter identical with the diameter D of the column middle body 116a of rotor 116.
In the example of Fig. 2-Fig. 6, rotor 116 has predetermined overall height H 1 and along the constant diameter D of whole height H 1.
Relative axial end portion part 116b is contained in the corresponding seat 122 that is arranged in the stator 12.Particularly, pump housing 12a is provided with the seat 122a be used to the first axial end portion part 11b that holds rotor 116, and lid 12b is provided with the seat 122b be used to the second axial end portion part 116b that holds rotor 116.
Each 122a, 122b have the side surface of column roughly and comprise axial abutment surface 123 for the corresponding axial end portion part 116b of rotor 116.
These two relative seat 122a, 122b are all coaxial with the spin axis O-O of rotor 116, and the axial distance H2 between the axial abutment surface 123 of described seat 122a, 122b is greater than the overall height H 1 of rotor 116.
By such mode, at the run duration of pump 110, rotor 116 advantageously axially floats between the axial abutment surface 123 of relative seat 122a, 122b.Thereby do not need that rotor 116 is carried out specific machining and guarantee in the axial direction preliminary dimension precision.Really, according to the present invention, because the accurate connection between the column side surface of the outer cylindrical of axial end portion part 116b surface and seat 112a, 112b has obtained the sealing at the working fluid at rotor 116 places.
Because blade 18 axial clearance is arranged self is installed in the groove 20, so moving axially of rotor 116 do not hindered by blade 18.
The claimant finds that advantageously, rotor 116 has the geometrical construction of highly simplifying, and by to plastic materials, preferably thermosetting resin carries out this rotor 116 of molded manufacturing and is and simply.With respect to the situation of using thermoplastic resin, under this a kind of situation in back, the surface finishing of rotor 116 has better characteristic, and can be by molded direct acquisition rotor 116, and does not need mechanical grinding subsequently.
Preferably, as shown in Figure 3 and Figure 4, axial end portion part 116b comprises the co-molded metal insert 124 that is provided with the first opening 124a, and the running shaft O-O of this first opening 124a and rotor 116 is coaxial.Can be near opening 124a by the second through hole 124b among the axial end portion part 116b that is formed on rotor 116.
Opening 124a is preferably through hole and has square substantially part, and this part is intended to hold the squared ends of the correspondence of live axle (not shown).
Metal insert 124 is substantially square, thereby allows moment of torsion to effective transmission of rotor 116, and this moment of torsion is applied to rotor 116 by live axle.In addition, the outside dimensions of metal insert 124 can be selected fully big, thereby can be with limited stress transfer to rotor 116, described stress is suitable for the load capacity of plastic materials, rotor 116 is made by this plastic materials, and the at the interface generation relatively low contact force of described stress between the plastic materials of the shaft end 116b of metal insert 124 and rotor 116, thereby reduced surface abrasion.
The rotor 116 that the claimant observes among Fig. 3 and Fig. 4 can be advantageously used in the following structure: the spin axis of live axle is aimed at the spin axis O-O of rotor 116.
Fig. 5 and Fig. 6 show second embodiment of the rotor 216 that can use in single vane pump of the present invention.
This embodiment is preferred under such situation, and in this case, the spin axis O-O of rotor has the predetermined offset E with respect to the spin axis of live axle.E is shown in Figure 7 for this offset.This figure relates to metal joint 228, and this metal joint 228 is in operation related with rotor 216.
In Fig. 5 and Fig. 6, in function aspects, or equivalent configurations element identical with the structural element of the rotor of describing in the above with reference to figure 3 and Fig. 4 116 represented by identical reference character and will can not described again.
Rotor 216 comprises two metallic pins 226 with predetermined radii R1, and these two metallic pins 226 are in that relative part place is co-molded in rotor 216 along height H 3 symmetrically about spin axis O-O, and height H 3 is less than the overall height H 1 of rotor 216.Metallic pin 226 has the corresponding free end part 226a that protrudes with cantilevered fashion from rotor 216.
Preferably, metallic pin 226 is co-molded in rotor 216 with 2/3rds height of the height H 1 that approximates rotor 216 greatly, thereby when the transmission rotation torque, makes the minimise stress in rotor 216 structures.
Metal joint 228 shown in Fig. 7, Fig. 8 is associated with rotor 216.This joint 228 is provided be used to the first opening 228a that holds live axle.
Metal joint 228 also comprises two circular open 228b with predetermined radii R2, and these two circular open 228b are arranged symmetrically on the opposite side about the first opening 228a.In the unrestricted example of Fig. 7, metal joint 228 has roughly oval shape.
Opening 228a is preferably through hole and has square substantially part, and this part is intended to hold the end of the correspondence of live axle.Fig. 7 shows the offset E between the spin axis O-O of the spin axis of live axle and rotor 216.
The free end part 226a of metallic pin 226 is contained among the circular open 228b, and this annular opening also is preferably through hole, makes rotor 216 and metal joint 228 rotate as a whole.
Preferably, the radius R 2 of annular opening 228b is bigger than the radius R 1 of metallic pin 226.More preferably, radius R 2 radius R 1 that equals metallic pin 226 at least adds predetermined offset E.
Be in operation, rotor 116 of the present invention, 216 sideway swivels in stator 12, guarantee the fluid-tight sealing of the expectation between the side direction cylinder surface of the side direction cylinder surface of the rotor at axial end portion part 116b place and seat 122a, 122b, described seat is respectively formed on pump housing 12a and the closing cap 12b.
In the embodiment of Fig. 3 and Fig. 4, produce motion to the transmission of rotor by metal insert co-molded in the axial end portion part 116b of rotor 116 124, wherein in the embodiment of Fig. 5-Fig. 8, produce motion to the transmission of rotor by metal joint 228, this metal joint connects with the metallic pin 226 that is molded in the rotor 216 together.Under these two kinds of situations, can pass through the molded acquisition rotor of plastics, and not require grinding action subsequently and do not need and consider narrow tolerance of size on the axial direction with reference to the axial dimension of stator.In addition, abundant spin axis away from rotor and/or live axle is wanted at the interface at the live axle place between metallic material and the plastic materials, such as, in any case, to produce contact surface power in a small amount.
Certainly to those skilled in the art; in order to satisfy the purpose of specific and subsidiary requirement; can carry out many variants and modifications to above-described single vane pump, yet all variants and modifications are covered as the protection scope of the present invention that limits all in following claim.

Claims (7)

1. a single vane pump (110) comprising:
Stator (12) defines chamber (14) in described stator;
Rotor (116,216), described rotor can rotate and comprises column middle body (116a) and column end sections (116b) to axial around spin axis (O-O), described column middle body has predetermined diameter (D), described column end sections to axial all has the diameter that equates with described predetermined diameter (D), and described rotor (116,216) is located rotatably to be supported in the described chamber (14) at described end sections to axial (116b);
Blade (18), described blade are slidably mounted in accordingly roughly in the radial slot (20) of described rotor (116,216);
Wherein, described rotor (116, the 216) diameter that has predetermined total height (H1) and equate with described predetermined diameter (D) along described total height (H1);
And wherein, described stator (12) comprises the lid (12b) of the pump housing (12a) and the described pump housing of sealing (12a), the described pump housing (12a) and described lid (12b) are provided with corresponding seat (122a, 122b) be used for holding described rotor (116,216) axial end portion part (116b), each seat (122a, 122b) comprise for described rotor (116, the axial abutment surface (123) of corresponding axial end portion part (116b) 216), wherein said seat (122a, axial distance (H2) between the axial abutment surface (123) 122b) is greater than described rotor (116,216) total height (H1).
2. single vane pump according to claim 1 (110), wherein said rotor (116,216) is made by plastic materials.
3. single vane pump according to claim 2 (110), wherein in the co-molded axial end portion part in described at least one axial end portion part (116b) of metal insert (124), described metal insert (124) is provided be used to first opening (124a) that holds live axle, described first opening (124a) is coaxial with described spin axis (O-O) and can approach by corresponding second opening (124b), and described at least one axial end portion that described second opening is formed at described rotor (116) is partly in (116b).
4. single vane pump according to claim 2 (110), comprise metal joint (228), described metal joint is provided be used to first opening (228a) that holds live axle, described metal joint (228) also comprises two circular opens (228b) with predetermined radii (R2), described circular open (228b) is arranged on the opposite side about described first opening (228a) symmetrically, two metallic pins (226) that wherein have predetermined radii (R1) are co-molded in described rotor (216), and described metallic pin (226) is about described spin axis (O-O) symmetric arrangement and have a corresponding free end part (226a) that is contained in the described circular open (228b).
5. single vane pump according to claim 3 (110), the spin axis (O-O) of wherein said rotor (216) has the predetermined offset (E) with respect to the spin axis of described live axle, and the radius (R1) that the radius (R2) of wherein said circular open (228b) equals described metallic pin (226) at least adds the above predetermined offset (E).
6. according to claim 4 or 5 described single vane pumps (110), wherein said metallic pin (226) is co-molded in described rotor (216) along height (H3), and described height (H3) is lower than the total height (H1) of described rotor (216).
7. according to each the described single vane pump (110) in the aforementioned claim, wherein said pump (110) is vacuum pump.
CN201180052176.6A 2010-10-26 2011-10-26 Single vane pump Active CN103314216B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI2010A001984 2010-10-26
ITMI2010A001984A IT1402417B1 (en) 2010-10-26 2010-10-26 MONOPAL PUMP
PCT/IB2011/002539 WO2012056295A2 (en) 2010-10-26 2011-10-26 Single-vane pump

Publications (2)

Publication Number Publication Date
CN103314216A true CN103314216A (en) 2013-09-18
CN103314216B CN103314216B (en) 2016-03-09

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CN (1) CN103314216B (en)
IT (1) IT1402417B1 (en)
WO (1) WO2012056295A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351838A (en) * 2015-07-13 2017-01-25 悦马塑料技术有限公司 Plastic rotor for a vacuum pump
CN108699910A (en) * 2016-03-07 2018-10-23 皮尔伯格泵技术有限责任公司 Automobile vacuum pump

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016042460A1 (en) * 2014-09-15 2016-03-24 Vhit S.P.A. Rotary pump

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Publication number Priority date Publication date Assignee Title
GB1454014A (en) * 1973-10-29 1976-10-27 Leybold Heraeus Verwaltung Rotary sliding vane pump
DE3033239A1 (en) * 1980-09-04 1982-04-08 Leybold-Heraeus GmbH, 5000 Köln Sliding vane type vacuum pump - has dowel type location of cylinder end wall to simplify assembly
EP0359139A2 (en) * 1988-09-10 1990-03-21 Barmag Ag Vane pump
US20020192097A1 (en) * 1998-09-30 2002-12-19 Dieter Otto Vacuum pump
FR2869958A1 (en) * 2004-05-07 2005-11-11 Peugeot Citroen Automobiles Sa Vacuum pump for e.g. diesel engine, has rotor with part, that is situated inside hollow body, having same cylindrical section as that of part situated outside the body, where section corresponds to nominal diameter of rotor

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Publication number Priority date Publication date Assignee Title
EP0264778B1 (en) * 1986-10-18 1991-01-02 B a r m a g AG Vane pump
DE3762651D1 (en) * 1986-10-18 1990-06-13 Barmag Barmer Maschf WING CELL VACUUM PUMP.
DE3813132A1 (en) * 1987-05-19 1988-12-15 Barmag Barmer Maschf Vane-cell pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1454014A (en) * 1973-10-29 1976-10-27 Leybold Heraeus Verwaltung Rotary sliding vane pump
DE3033239A1 (en) * 1980-09-04 1982-04-08 Leybold-Heraeus GmbH, 5000 Köln Sliding vane type vacuum pump - has dowel type location of cylinder end wall to simplify assembly
EP0359139A2 (en) * 1988-09-10 1990-03-21 Barmag Ag Vane pump
US20020192097A1 (en) * 1998-09-30 2002-12-19 Dieter Otto Vacuum pump
FR2869958A1 (en) * 2004-05-07 2005-11-11 Peugeot Citroen Automobiles Sa Vacuum pump for e.g. diesel engine, has rotor with part, that is situated inside hollow body, having same cylindrical section as that of part situated outside the body, where section corresponds to nominal diameter of rotor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351838A (en) * 2015-07-13 2017-01-25 悦马塑料技术有限公司 Plastic rotor for a vacuum pump
CN106351838B (en) * 2015-07-13 2019-02-19 悦马塑料技术有限公司 Plastic rotor for vacuum pump
CN108699910A (en) * 2016-03-07 2018-10-23 皮尔伯格泵技术有限责任公司 Automobile vacuum pump
US10982673B2 (en) 2016-03-07 2021-04-20 Pierburg Pump Technology Gmbh Automotive vacuum pump

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IT1402417B1 (en) 2013-09-04

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