WO2012167780A2 - Rotor für eine flügelzellenpumpe - Google Patents
Rotor für eine flügelzellenpumpe Download PDFInfo
- Publication number
- WO2012167780A2 WO2012167780A2 PCT/DE2012/100166 DE2012100166W WO2012167780A2 WO 2012167780 A2 WO2012167780 A2 WO 2012167780A2 DE 2012100166 W DE2012100166 W DE 2012100166W WO 2012167780 A2 WO2012167780 A2 WO 2012167780A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bodies
- rotor according
- rotor
- bearing stub
- bearing
- Prior art date
Links
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
-
- 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
-
- 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
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/24—Manufacture essentially without removing material by extrusion
Definitions
- the invention relates to a rotor for a Flugelzellenpunnpe, with two half-bodies which define a wing slot, and with a bearing stub.
- German Patent Application DE 195 19 841 A1 discloses a rotor for a vane-cell pump which has two half-bodies which are of identical design and enclose a drive element in a separating region located in the plane of symmetry of the rotor.
- the object of the invention is to provide a rotor for a vane pump, with two half-bodies, which limit a wing slot, and with a bearing stub, which is simple in construction and inexpensive to produce.
- the object is in a rotor for a vane pump, with two half-bodies, which limit a wing slot, and with a bearing stub, achieved in that the half-body and the bearing stub are designed as separate manufacturing units.
- the bearing stub according to the invention is independent of the two half-bodies manufacturing unit. This provides the advantage that different manufacturing processes can be used for the production of the bearing stub and for the production of the half-body, which are optimally adapted to the desired properties and functions of the half-body and the Lagerstummeis. So it is possible, for example, the stock stub completely or partially from a solid material.
- the half-bodies can be designed as hollow bodies. After production, the half-body, for example, materially bonded, be attached to the bearing stub.
- a preferred embodiment of the rotor is characterized in that the half-bodies are designed as hollow bodies. As a result, a significant amount of material can be saved without affecting the function of the half-body becomes. With regard to certain properties, it is even possible to improve the quality of the half-bodies.
- a further preferred embodiment of the rotor is characterized in that the half-bodies, viewed in cross section, have the shape of circular arcs on the outside.
- the two circular arcs belong to a circle, which represents the outside diameter of the rotor.
- the outer diameter of the rotor is concentric with an outer diameter of the bearing stub.
- the rotor has the outside substantially the shape of a straight circular cylinder which is interrupted by the wing slot and coaxial with the bearing stub, in particular to a bearing portion of the bearing stub, is arranged.
- a further preferred embodiment of the rotor is characterized in that the half-bodies, viewed in cross-section, each have on their inner sides two guide and / or sealing surfaces for a wing.
- the guide and / or sealing surfaces are arranged in pairs parallel to each other and define a substantially cuboid wing slot. Between the guide and / or sealing surfaces of the respective half-body can advantageously be arranged an elongated recess. By the elongated depression, the contact area between the half-bodies and the wing can be reduced.
- Another preferred embodiment of the rotor is characterized in that the half-bodies are open at both ends.
- the production of the half-body for example by profiles by extrusion, considerably simplified.
- one end of the half-body can be closed, for example by a lid.
- the half-bodies are closed at one end. This considerably simplifies the production of the half-bodies, for example by deep drawing or plastic injection molding.
- the other end of the half-body is preferably open, can but if necessary, after production, for example, by a lid closed.
- a further preferred embodiment of the rotor is characterized in that the half-bodies are formed from a sheet material, semi-finished product and / or profile material.
- the half-bodies are preferably made of an elongated material in a desired cross-sectional shape. Thereafter, the semi-finished product with the desired cross-section is brought to a suitable length.
- a further preferred embodiment of the rotor is characterized in that the half-bodies are designed as formed parts, extruded profile parts, stamped and bent parts, deep-drawn parts or sintered parts.
- the two half-bodies can be produced in a particularly simple and cost-effective manner by the mentioned methods.
- a further preferred embodiment of the rotor is characterized in that the half-bodies are designed as plastic injection-molded parts.
- the half-bodies are designed as plastic injection-molded parts.
- the material can be selected particularly advantageously with regard to the desired material properties of the half-body and the bearing stub.
- a further preferred embodiment of the rotor is characterized in that the half-bodies are interconnected by a connecting body having the same outer diameter as the bearing stub.
- the connecting body preferably has substantially the shape of a circular disk.
- the connecting body may be integrally connected to the two half-bodies.
- the half-bodies can also be connected to each other after production by the connecting body.
- a further preferred embodiment of the rotor is characterized in that the half-bodies are materially connected to the bearing stub.
- the half-bodies are connected by welding, soldering or gluing cohesively with the bearing stub, for example.
- a stable connection between the half-bodies and the bearing stub is created in a simple manner.
- the connecting body which connects the two half-bodies to one another, the connecting body can be connected to the bearing stub in a particularly positive manner.
- a further preferred embodiment of the rotor is characterized in that the bearing stub has a bearing portion and an additional functional portion having a smaller outer diameter than the bearing portion.
- the additional functional section is used, for example, for attaching a coupling body to the bearing stub.
- the bearing stub has a transverse bore.
- the transverse bore preferably serves for the supply and / or distribution of lubricant.
- a further preferred embodiment of the rotor is characterized in that the bearing stub is integrally connected to a coupling body at its free end.
- the coupling body is designed, for example, as a two-bladed and serves to drive the rotor to connect to a drive shaft.
- a further preferred embodiment of the rotor is characterized in that the bearing stub is wholly or partly formed from a solid material. This ensures in a simple manner that the bearing stub can safely transmit a torque required to drive the rotor. When selecting the solid material, special aspects with regard to a friction occurring on the bearing stub during operation of the rotor can be taken into account. If required, the bearing stub can be provided with a friction-minimizing coating after production.
- a further preferred embodiment of the rotor is characterized in that the bearing stub is designed as extruded or sintered part. The bearing stub can be produced particularly cost-effectively by extrusion, in a manner similar to stud bolts.
- Figure 1 is a perspective view of a rotor according to a first
- Figure 2 shows a similar embodiment as in Figure 1 according to two Halbkör- pern, which are interconnected by a circular disk-shaped connecting body.
- a rotor 1; 41 shown in perspective according to two different embodiments.
- the rotor 1; 41 comprises two half-bodies 3, 4, which delimit a vane slot for a vane of a vacuum pump, which due to the vane is also referred to as a vane-cell pump, in particular as a single-vane cell pump.
- the two half-bodies 3, 4 are designed as hollow bodies and fastened to a bearing stub 8.
- the bearing stub 8 serves to rotatably support the rotor 1 in a housing of the vane pump.
- the rotor 1 is manufactured and assembled from simple and inexpensive to produce individual parts, such as the half-bodies 3, 4 and the bearing stub 8.
- the individual parts are designed, for example, as formed parts, extruded profile parts, stamped and bent parts, thermoformed parts, extruded parts or sintered parts. After finishing the half-bodies 3, 4 are firmly attached to the bearing stub 8, for example by welding, soldering or gluing.
- the half-bodies 3, 4 are designed as hollow bodies, each with an outer wall 1 1, 12.
- the two circular arcs represent a rotor outer diameter, which is arranged concentrically to an outer diameter of the bearing stub 8.
- the rotor 1 and the bearing stub 8 have the outside substantially the shape of coaxially arranged circular cylinders with different outer diameters.
- the half-bodies 3, 4 delimit the
- Vane slot For guiding and / or sealing of the wing, two guide and / or sealing surfaces 14, 15; 16, 17 formed.
- the guide and / or sealing surfaces 14, 15 of the half-body 3 are arranged parallel to the guide and / or sealing surfaces 16, 17 of the half-body 4.
- the guide and / or sealing surfaces 14, 16 and 15, 17 of the two half-bodies 3, 4 face each other in pairs.
- an elongated recess 18, 19 is provided in each case.
- the elongated recesses 18, 19 are arranged parallel to each other and extend in the longitudinal direction of the rotor.
- the longitudinal direction of the rotor is defined by its axis of rotation or longitudinal axis.
- Longitudinal means in the direction or parallel to the axis of rotation or longitudinal axis of the rotor.
- Cross means transverse to the longitudinal axis or axis of rotation of the rotor. 1
- the bearing stub 8 is stepped with a bearing portion 20 and an additional functional portion 24 executed.
- the bearing section 20 has the shape of a straight circular cylinder which has a larger outer diameter than the additional functional section 24, which likewise has the shape of a straight circular cylinder.
- the outer diameter of the bearing portion 20 is smaller than the outer diameter of the rotor 1.
- the bearing stub 8 has a transverse bore 22.
- the transverse bore serves to receive and distribute lubricant.
- the lubricant may be supplied to the vane pump via a bore in a housing, for example.
- the lubricant is preferably oil which also passes into the region of the vane slot past the bearing section 20.
- the additional functional section 24 is used, for example, to accommodate a
- a coupling body 26 is formed in the form of a two-salmon.
- the coupling body 26 is part of the coupling device and is, preferably positively, connected to a complementary executed Kupplungsaus predominantlyung, which is formed at a free end of the drive shaft.
- the two half-bodies 3, 4 are interconnected by a connecting body 45.
- the connecting body 45 essentially has the shape of a circular disk which has the same outer diameter as the bearing section 20 of the bearing stub 8.
- the connecting body 45 may be integrally connected to the half-bodies 3, 4. However, the connecting body 45 can also be connected to the half bodies 3, 4 after the production, for example by material engagement. By the connecting body 45, a flat circular surface is created in a simple manner, which greatly simplifies the material-conclusive connection with the bearing stub 8.
- the two half-bodies 3, 4 are open at their visible in Figures 1 and 2 ends. At their ends not visible in FIGS. 1 and 2, the half-bodies 3, 4 can be made open or closed.
- the closing of production-related preferably open ends of the half-body 3, 4 can for example be done by cover having the same cross section as the half-body 3, 4.
- the closure has the advantage that leakage from the bearing stub side leakage, such as air in a vacuum pump, prevented by the lid is to penetrate through the rotor in the working spaces of the pump. By such cover the cohesive connection of the half-body 3, 4 is simplified with the bearing stub 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012002375.7T DE112012002375A5 (de) | 2011-06-07 | 2012-06-01 | Rotor für eine Flügelzellenpumpe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011050898.8 | 2011-06-07 | ||
DE102011050898 | 2011-06-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012167780A2 true WO2012167780A2 (de) | 2012-12-13 |
WO2012167780A3 WO2012167780A3 (de) | 2013-12-12 |
Family
ID=46851759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2012/100166 WO2012167780A2 (de) | 2011-06-07 | 2012-06-01 | Rotor für eine flügelzellenpumpe |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112012002375A5 (de) |
WO (1) | WO2012167780A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013204504C5 (de) * | 2013-03-14 | 2016-06-09 | Schwäbische Hüttenwerke Automotive GmbH | Flügelzellenpumpe mit verbesserter Leistung |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19519841A1 (de) | 1995-05-31 | 1996-12-05 | Luk Automobiltech Gmbh & Co Kg | Vakuumpumpe |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3672237B2 (ja) * | 2000-10-02 | 2005-07-20 | 三菱電機株式会社 | 自動車用ベーン式真空ポンプ |
ATE367530T1 (de) * | 2001-10-15 | 2007-08-15 | Ixetic Hueckeswagen Gmbh | Vakuumpumpe |
DE102004034925B3 (de) * | 2004-07-09 | 2006-02-16 | Joma-Hydromechanic Gmbh | Einflügelvakuumpumpe |
-
2012
- 2012-06-01 DE DE112012002375.7T patent/DE112012002375A5/de not_active Withdrawn
- 2012-06-01 WO PCT/DE2012/100166 patent/WO2012167780A2/de active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19519841A1 (de) | 1995-05-31 | 1996-12-05 | Luk Automobiltech Gmbh & Co Kg | Vakuumpumpe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013204504C5 (de) * | 2013-03-14 | 2016-06-09 | Schwäbische Hüttenwerke Automotive GmbH | Flügelzellenpumpe mit verbesserter Leistung |
Also Published As
Publication number | Publication date |
---|---|
DE112012002375A5 (de) | 2014-02-27 |
WO2012167780A3 (de) | 2013-12-12 |
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