CA2575775A1 - Single-blade vacuum pump - Google Patents
Single-blade vacuum pump Download PDFInfo
- Publication number
- CA2575775A1 CA2575775A1 CA002575775A CA2575775A CA2575775A1 CA 2575775 A1 CA2575775 A1 CA 2575775A1 CA 002575775 A CA002575775 A CA 002575775A CA 2575775 A CA2575775 A CA 2575775A CA 2575775 A1 CA2575775 A1 CA 2575775A1
- Authority
- CA
- Canada
- Prior art keywords
- rotor
- vacuum pump
- blade
- housing
- axis
- 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.)
- Abandoned
Links
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229920002994 synthetic fiber Polymers 0.000 claims description 9
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
-
- 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
Landscapes
- 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
Title: Single-Blade Vacuum Pump Description The invention relates to a single-blade vacuum pump with a pot-shaped housing, a rotor which is eccentrically rotated in the housing, a blade which in the axis of rotation is rotatably mounted in the rotor orthogonally in relation to the axis of rotation, and a housing cover closing the expansion chambers separated by the blade.
Vacuum pumps with a structure of this type are known. As a rule, said pumps comprise a housing consisting of metal wherein a rotor is rotatably mounted and in which the expansion chambers are formed. The rotor, for example, is put into motion by the engine of a motor vehicle. It also is known that said rotor consists of metal and, in particular, sinter metal. Because of the high weight of the rotor, said rotor has a large mass moment of inertia as a result of which the power consumption of the vacuum pump is undesirably high.
It is the object of the present invention to provide a vacuum pump, especially a single-blade vacuum pump, which has a lower power consumption.
Vacuum pumps with a structure of this type are known. As a rule, said pumps comprise a housing consisting of metal wherein a rotor is rotatably mounted and in which the expansion chambers are formed. The rotor, for example, is put into motion by the engine of a motor vehicle. It also is known that said rotor consists of metal and, in particular, sinter metal. Because of the high weight of the rotor, said rotor has a large mass moment of inertia as a result of which the power consumption of the vacuum pump is undesirably high.
It is the object of the present invention to provide a vacuum pump, especially a single-blade vacuum pump, which has a lower power consumption.
2 In view of the foregoing, the problem is solved in accordance with the invention by means of a single-blade vacuum pump as mentioned hereinabove in that the rotor at least partially consists of sintered metal.
The invention consists in producing only sections of the rotor from a different metal of a lower weight. Consequently, the overall weight of the rotor is reduced and the mass moment of inertia is diminished. By this one achieves a reduced power consumption of the vacuum pump, which is lower than with conventional units. In particular, those components of the rotor, which must transmit large moments as before are made of metal, whereas sections of the rotor may consist of a different material, which is less subjected to stress.
In one improvement, it is proposed that the rotor comprises a rotor axis and a rotor housing placed upon said rotor axis. It is the task of the rotor axis to initiate the torque required for driving the pump and to start rotating the rotor with blade. It is the object of the rotor housing to control and guide the blade.
Since the driving forces and the moments, which have an effect on acceleration and delay, must be supported mainly by the rotor axis, said axis consists of sintered metal. When controlling the blade, these types of forces and moments play a subordinate role, wherein sealing problems come to the fore. Therefore, the rotor housing, according to the invention, is made of synthetic material. Synthetic materials, especially when paired with a
The invention consists in producing only sections of the rotor from a different metal of a lower weight. Consequently, the overall weight of the rotor is reduced and the mass moment of inertia is diminished. By this one achieves a reduced power consumption of the vacuum pump, which is lower than with conventional units. In particular, those components of the rotor, which must transmit large moments as before are made of metal, whereas sections of the rotor may consist of a different material, which is less subjected to stress.
In one improvement, it is proposed that the rotor comprises a rotor axis and a rotor housing placed upon said rotor axis. It is the task of the rotor axis to initiate the torque required for driving the pump and to start rotating the rotor with blade. It is the object of the rotor housing to control and guide the blade.
Since the driving forces and the moments, which have an effect on acceleration and delay, must be supported mainly by the rotor axis, said axis consists of sintered metal. When controlling the blade, these types of forces and moments play a subordinate role, wherein sealing problems come to the fore. Therefore, the rotor housing, according to the invention, is made of synthetic material. Synthetic materials, especially when paired with a
3 metal, in this case a blade made of metal, have excellent tribological properties as a result of which frictional forces can be reduced to a minimum, which also counters excessive heating.
The rotor housing may also have the objective of sealing the two expansion chambers against one another in that the rotor housing is located adjacent to the internal peripheral wall. If the pump housing consists of metal and the rotor housing of synthetic material, the frictional forces will be reduced and good sealing properties will be achieved.
Preferred embodiments provide the following synthetic materials for the rotor housing: Polyetheretherketone (PEEK), polyether sulfide (PES), syndiotactic polystyrol (SPS) or a polyphenyl sulfide (PPS). These synthetic materials are extremely resistant to abrasion and to lubricants.
A simple installation of the rotor is achieved in that the rotor housing is plugged onto the rotor axis, especially in the direction of the axis. The plug connections are produced easily and in particular without tools. Furthermore, during the operation of the vacuum pump, there is no reaction of forces in or against the plug-in direction, so that there is no concern for the plug connection becoming loose.
A preferred variant of the invention provides that, in order to attach the rotor housing, the rotor axis comprises at least two
The rotor housing may also have the objective of sealing the two expansion chambers against one another in that the rotor housing is located adjacent to the internal peripheral wall. If the pump housing consists of metal and the rotor housing of synthetic material, the frictional forces will be reduced and good sealing properties will be achieved.
Preferred embodiments provide the following synthetic materials for the rotor housing: Polyetheretherketone (PEEK), polyether sulfide (PES), syndiotactic polystyrol (SPS) or a polyphenyl sulfide (PPS). These synthetic materials are extremely resistant to abrasion and to lubricants.
A simple installation of the rotor is achieved in that the rotor housing is plugged onto the rotor axis, especially in the direction of the axis. The plug connections are produced easily and in particular without tools. Furthermore, during the operation of the vacuum pump, there is no reaction of forces in or against the plug-in direction, so that there is no concern for the plug connection becoming loose.
A preferred variant of the invention provides that, in order to attach the rotor housing, the rotor axis comprises at least two
4 pins diminishing parallel to the axis of rotation. By contrast, the rotor housing has two sleeves which can be placed upon the pins. The shape of the pins and sleeves preferably is selected in such a way that not only the rotor housing is held safely by the rotor axis, but the guiding forces holding the blade are supported via the sleeves by the pins.
For this purpose, the pins extend at least over part of the height of the blade. In order to extend, hold securely, and control the blade even with relatively short pins, which, for example, extend over a height of 10% - 20% of the blade, the other part of the sleeve, which is not penetrated by the pin, is stiffened by means of braces. This saves material and consequently weight as well.
Other advantages, characteristics, and details of the invention are specified in the subordinate claims and in the following description in which, by referring to the drawing, a preferred embodiment is described in detail. Further, the characteristic elements represented in the drawing and mentioned in the description and in the claims can be fundamental to the invention individually or in any combination.
Of the drawing:
Figure 1 shows an exploded view of the vacuum pump;
Figure 2 shows a perspective view of the blade; and Figure 3 shows a perspective presentation of the blade, shown in part as a section.
Figure 4 shows a perspective view of the rotor housing with inserted blade.
Figure 1 shows the vacuum pump with the overall reference symbol wherein the housing 12 is represented without cover. The housing 12 has a suction connection 14, which ends in an interior 16. This interior 16 contains a rotor with the overall designation 18, wherein a blade 20 is rotatably mounted orthogonally to the axis of rotation 21. The rotor 18 is structured in two parts and comprises a rotor axis 22 and a rotor housing 24. The rotor axis 22 passes through the housing 12, especially a base 26 of the interior 18 via a drive opening 28 and with a rectangular section 30 at the rear projects from the housing 12 via which said section (by means of a drive, which is not shown) is put into rotation. The drive opening 28 is provided with suitable sealants, so that neither lubricant is able to leak nor air and/or dirt able to enter the interior 16.
Section 30 continues in a cylindrical section 32 with circular cross-section, as is shown in Figure 2. Section 32 is connected to a disk 34 from which the pins 36 extend in the direction of the axis. The pins 36 are provided with recesses 38, so that they essentially are formed by a wall 40, which has the shape of the letter "D." Between the two pins 36, there is a running surface 42, which is formed by part of the surface of the disk 34. This running surface 42, abuts on a narrow side of the blade.
Further, a lubricant bore 44 ends in this running surface 42, via which the running surface 42 and other running surfaces or generally the interior 16 and/or the blade 20 are supplied with lubricant.
Figure 3 shows a rotor housing 24, which comprises a vertical section corresponding to an upside-down letter "U," which is open towards the bottom. The rotor housing 24 has two sleeves 46 which are interconnected via a bridge 48. These sleeves 46 are largely hollow, which is evident from Figure 4. The two sleeves 46 between themselves define two running surfaces 50 on which the broad side of the blade 30 abuts. Ultimately, the section of the underside of the bridge 48, which is located between the two sleeves 46, forms a running surface 52 on which the second narrow side of the blade abuts. The blade 20 thus is controlled via the running surfaces 42, 50, and 52, and can be moved to both sides of the longitudinal axis of the blade 54.
As is evident from Figure 4, the sleeves 46 comprise a first section 56 in which the pins 36 can be inserted. A second section 58 is connected to this first section 56, which also is hollow, in which, however, the bracings 60 extend, which in particular are arranged in a radial direction. The sleeves 46 therefore are mainly formed by walls, which essentially are shaped like a"D." The mass of the rotor housing 24 therefore is relatively small.
Since the pins 36 are hollow, the mass is determined by the weight of walls 40. With a preferred embodiment, the rectangular section 30 is hollow as a result of which its mass is reduced.
Said cavity extends from the free end of the section 30 to the lubricant hole 44. Said cavity is limited by the essentially rectangular wall of the section 30.
In an improvement of the invention, the lateral parts of the cylindrical section 32, which project over the section 30, are hollow, wherein these cavities extend to the underside of the disks 34 and on each side have an essentially D-shaped cross-section. Consequently, the mass of the section 32 is reduced.
Another reduction of weight of the rotor 18 is achieved in that one part of the rotor 18 consists of sintered metal, while the other part consists of synthetic material. In particular, the rotor housing 24 consists of synthetic material. As a result, tribological optimal pairings of the running surfaces 50 and 52 can be created with the surfaces of the blade 20.
For this purpose, the pins extend at least over part of the height of the blade. In order to extend, hold securely, and control the blade even with relatively short pins, which, for example, extend over a height of 10% - 20% of the blade, the other part of the sleeve, which is not penetrated by the pin, is stiffened by means of braces. This saves material and consequently weight as well.
Other advantages, characteristics, and details of the invention are specified in the subordinate claims and in the following description in which, by referring to the drawing, a preferred embodiment is described in detail. Further, the characteristic elements represented in the drawing and mentioned in the description and in the claims can be fundamental to the invention individually or in any combination.
Of the drawing:
Figure 1 shows an exploded view of the vacuum pump;
Figure 2 shows a perspective view of the blade; and Figure 3 shows a perspective presentation of the blade, shown in part as a section.
Figure 4 shows a perspective view of the rotor housing with inserted blade.
Figure 1 shows the vacuum pump with the overall reference symbol wherein the housing 12 is represented without cover. The housing 12 has a suction connection 14, which ends in an interior 16. This interior 16 contains a rotor with the overall designation 18, wherein a blade 20 is rotatably mounted orthogonally to the axis of rotation 21. The rotor 18 is structured in two parts and comprises a rotor axis 22 and a rotor housing 24. The rotor axis 22 passes through the housing 12, especially a base 26 of the interior 18 via a drive opening 28 and with a rectangular section 30 at the rear projects from the housing 12 via which said section (by means of a drive, which is not shown) is put into rotation. The drive opening 28 is provided with suitable sealants, so that neither lubricant is able to leak nor air and/or dirt able to enter the interior 16.
Section 30 continues in a cylindrical section 32 with circular cross-section, as is shown in Figure 2. Section 32 is connected to a disk 34 from which the pins 36 extend in the direction of the axis. The pins 36 are provided with recesses 38, so that they essentially are formed by a wall 40, which has the shape of the letter "D." Between the two pins 36, there is a running surface 42, which is formed by part of the surface of the disk 34. This running surface 42, abuts on a narrow side of the blade.
Further, a lubricant bore 44 ends in this running surface 42, via which the running surface 42 and other running surfaces or generally the interior 16 and/or the blade 20 are supplied with lubricant.
Figure 3 shows a rotor housing 24, which comprises a vertical section corresponding to an upside-down letter "U," which is open towards the bottom. The rotor housing 24 has two sleeves 46 which are interconnected via a bridge 48. These sleeves 46 are largely hollow, which is evident from Figure 4. The two sleeves 46 between themselves define two running surfaces 50 on which the broad side of the blade 30 abuts. Ultimately, the section of the underside of the bridge 48, which is located between the two sleeves 46, forms a running surface 52 on which the second narrow side of the blade abuts. The blade 20 thus is controlled via the running surfaces 42, 50, and 52, and can be moved to both sides of the longitudinal axis of the blade 54.
As is evident from Figure 4, the sleeves 46 comprise a first section 56 in which the pins 36 can be inserted. A second section 58 is connected to this first section 56, which also is hollow, in which, however, the bracings 60 extend, which in particular are arranged in a radial direction. The sleeves 46 therefore are mainly formed by walls, which essentially are shaped like a"D." The mass of the rotor housing 24 therefore is relatively small.
Since the pins 36 are hollow, the mass is determined by the weight of walls 40. With a preferred embodiment, the rectangular section 30 is hollow as a result of which its mass is reduced.
Said cavity extends from the free end of the section 30 to the lubricant hole 44. Said cavity is limited by the essentially rectangular wall of the section 30.
In an improvement of the invention, the lateral parts of the cylindrical section 32, which project over the section 30, are hollow, wherein these cavities extend to the underside of the disks 34 and on each side have an essentially D-shaped cross-section. Consequently, the mass of the section 32 is reduced.
Another reduction of weight of the rotor 18 is achieved in that one part of the rotor 18 consists of sintered metal, while the other part consists of synthetic material. In particular, the rotor housing 24 consists of synthetic material. As a result, tribological optimal pairings of the running surfaces 50 and 52 can be created with the surfaces of the blade 20.
Claims (14)
1. A single-blade vacuum pump (10) comprising a pot-shaped housing (12), a rotor (18) which is eccentrically rotated in the housing (121), a blade (20) which in the axis of rotation is rotatably mounted in the rotor orthogonally in relation to the axis of rotation, and a housing cover closing the expansion chambers separated by the blade (20), characterized in that the rotor (18) at least partially consists of sintered metal.
2. A single-blade vacuum pump as defined in claim 1, characterized in that the rotor (18) comprises a rotor axis (22) and a rotor housing (24) placed upon the rotor axis (22).
3. A single-blade vacuum pump as defined in claim 2, characterized in that the rotor axis (22) consists of sintered metal.
4. A single-blade vacuum pump as defined in claim 2 or 3, characterized in that the rotor housing (24) consists of synthetic material.
5. A single-blade vacuum pump as defined in claim 4, characterized in that the synthetic material is a polyetheretherketone (PEEK), polyether sulfide (PES), syndiotactic polystyrol (SPS) or a polyphenyl sulfide (PPS).
6. A single-blade vacuum pump as defined in one of the claims 2 to 5, characterized in that the rotor housing (24) is plugged onto the rotor axis (22).
7. A single-blade vacuum pump as defined in claim 6, characterized in that the rotor axis (22) for accommodating the rotor housing (24) comprises at least two pins (36), which diminish parallel to the axis of rotation.
8. A single-blade vacuum pump as defined in claim 7, characterized in that the rotor housing (24) comprises two sleeves (46), which can be plugged onto the pins (36).
9. A single-blade vacuum pump as defined in claim 7 or 8, characterized in that the pins (36) extend at least over part of the height of the blade (20).
10. A single-blade vacuum pump as defined in claims 8 and 9, characterized in that the other part (58) of the sleeves (46), which is not penetrated by the pins (36), is stiffened by means of bracings (60).
11. A single-blade vacuum pump as defined in one of the above claims, characterized in that the rotor (18) is hollow.
12. A single-blade vacuum pump as defined in one of the claims 2 to 11, characterized in that the rotor axis (22) and/or the rotor housing (24) have cavities.
13. A single-blade vacuum pump as defined in one of the claims 2 to 12, characterized in that the rotor axis (22) has three cavities.
14. A single-blade vacuum pump as defined in one of the above claims, characterized in that only sections of the rotor (18) consist of sintered metal.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004034925.8 | 2004-07-09 | ||
| DE102004034925A DE102004034925B3 (en) | 2004-07-09 | 2004-07-09 | A single-blade |
| PCT/EP2005/004209 WO2006005380A1 (en) | 2004-07-09 | 2005-04-20 | Single-blade vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2575775A1 true CA2575775A1 (en) | 2006-01-19 |
Family
ID=34967982
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002575775A Abandoned CA2575775A1 (en) | 2004-07-09 | 2005-04-20 | Single-blade vacuum pump |
| CA002575890A Abandoned CA2575890A1 (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 |
|---|---|---|---|
| CA002575890A Abandoned CA2575890A1 (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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| EP2215364B1 (en) * | 2007-11-13 | 2015-07-08 | Magna Powertrain Hückeswagen GmbH | Dye, sintered rotor and sintering method |
| 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 |
| US9803640B2 (en) | 2013-10-07 | 2017-10-31 | Sanoh Industrial Co., Ltd. | 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 |
| CN108699910B (en) | 2016-03-07 | 2021-08-17 | 皮尔伯格泵技术有限责任公司 | Automobile vacuum pump |
| JP6826561B2 (en) | 2018-07-11 | 2021-02-03 | 大豊工業株式会社 | Vane pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4088426A (en) * | 1976-05-17 | 1978-05-09 | The Rovac Corporation | Sliding vane type of compressor-expander having differential eccentricity feature |
| JPS5720852Y2 (en) * | 1978-05-22 | 1982-05-06 | ||
| IT1130363B (en) * | 1980-01-29 | 1986-06-11 | Leonardo Beltrame | CAPSULISM COMPRESSOR WITH IMPELLED IMPELLER, USEFUL IN PARTICULAR FOR INFLATION OR POWER SUPPLY OF PNEUMATIC WARNING DEVICES FOR VEHICLES |
| DE3131442C2 (en) * | 1981-08-07 | 1987-03-19 | Mitsubishi Denki K.K., Tokio/Tokyo | pump |
| DE8602905U1 (en) * | 1986-02-05 | 1986-03-27 | Strittmatter, Hans-Peter, 78112 St Georgen | Vane pump |
| DE3916869A1 (en) * | 1989-05-24 | 1990-11-29 | Korinek Anton Dipl Ing Fh | Rotary slide high speed air pump - has housing which encloses cylindrical inner chamber with smooth face surfaces and eccentrically mounted circular cylindrical rotor |
| DE4020082C2 (en) * | 1989-07-07 | 1998-09-03 | Barmag Barmer Maschf | Vane vacuum pump |
| DE4208194A1 (en) * | 1992-03-14 | 1993-09-16 | Leybold Ag | METHOD FOR OPERATING AN OIL-SEALED VACUUM PUMP AND A VACUUM PUMP SUITABLE FOR IMPLEMENTING THIS METHOD |
| DE19500542B4 (en) * | 1995-01-11 | 2004-02-12 | Pierburg Gmbh | Rotary pump |
| DE19703499C2 (en) * | 1997-01-31 | 2002-10-17 | Pierburg Ag | Rotary pump |
| IT1293672B1 (en) * | 1997-08-01 | 1999-03-08 | Magneti Marelli Spa | ROTARY VANE DEPRESSOR. |
| DE29924585U1 (en) * | 1998-09-30 | 2004-01-08 | Luk Automobiltechnik Gmbh & Co. Kg | Vacuum pump for brake amplifier, has a rotor driven by the vehicle engine, turning a vane in a casing, where rotor is made of plastic, in one piece |
| EP1055823B1 (en) * | 1998-12-14 | 2008-02-20 | Mitsubishi Denki Kabushiki Kaisha | Vane type vacuum pump for automobiles |
| EP1424495A3 (en) * | 2000-03-15 | 2004-06-23 | Joma-Hydromechanic GmbH | Vane pump |
| DE10012406A1 (en) * | 2000-03-15 | 2001-09-20 | Joma Hydromechanic Gmbh | Rotary displacement pump has sealing bars at the blade with a spring to keep them pressed against the inner wall of the pump housing to maintain a seal at low start-up speeds |
| DE10046697A1 (en) * | 2000-09-21 | 2002-04-11 | Bosch Gmbh Robert | Plastic blades for a vane vacuum pump |
| DE10294902D2 (en) * | 2001-10-15 | 2004-09-16 | Luk Automobiltech Gmbh & Co Kg | vacuum pump |
-
2004
- 2004-07-09 DE DE102004034925A patent/DE102004034925B3/en not_active Expired - Lifetime
-
2005
- 2005-04-20 KR KR1020077003041A patent/KR101131741B1/en not_active IP Right Cessation
- 2005-04-20 DE DE502005002006T patent/DE502005002006D1/en active Active
- 2005-04-20 EP EP05742896A patent/EP1766240B1/en active Active
- 2005-04-20 CN CNB2005800270353A patent/CN100529405C/en active Active
- 2005-04-20 CA CA002575775A patent/CA2575775A1/en not_active Abandoned
- 2005-04-20 WO PCT/EP2005/004209 patent/WO2006005380A1/en active IP Right Grant
- 2005-06-30 EP EP05772163A patent/EP1766242B1/en active Active
- 2005-06-30 KR KR1020077003039A patent/KR101225346B1/en not_active IP Right Cessation
- 2005-06-30 CA CA002575890A patent/CA2575890A1/en not_active Abandoned
- 2005-06-30 CN CNA2005800271619A patent/CN101002024A/en active Pending
- 2005-06-30 DE DE502005002846T patent/DE502005002846D1/en active Active
- 2005-06-30 WO PCT/EP2005/007028 patent/WO2006005445A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| EP1766242B1 (en) | 2008-02-13 |
| DE102004034925B3 (en) | 2006-02-16 |
| EP1766242A1 (en) | 2007-03-28 |
| CN101002024A (en) | 2007-07-18 |
| CN101010514A (en) | 2007-08-01 |
| WO2006005445A1 (en) | 2006-01-19 |
| DE502005002846D1 (en) | 2008-03-27 |
| WO2006005380A1 (en) | 2006-01-19 |
| KR20070034092A (en) | 2007-03-27 |
| DE502005002006D1 (en) | 2007-12-27 |
| KR20070042547A (en) | 2007-04-23 |
| KR101131741B1 (en) | 2012-04-05 |
| EP1766240B1 (en) | 2007-11-14 |
| KR101225346B1 (en) | 2013-01-23 |
| CA2575890A1 (en) | 2006-01-19 |
| EP1766240A1 (en) | 2007-03-28 |
| CN100529405C (en) | 2009-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |