CA2575780C - Single-blade vacuum pump - Google Patents
Single-blade vacuum pump Download PDFInfo
- Publication number
- CA2575780C CA2575780C CA2575780A CA2575780A CA2575780C CA 2575780 C CA2575780 C CA 2575780C CA 2575780 A CA2575780 A CA 2575780A CA 2575780 A CA2575780 A CA 2575780A CA 2575780 C CA2575780 C CA 2575780C
- Authority
- CA
- Canada
- Prior art keywords
- vacuum pump
- insert
- outlet
- blade
- outlet valve
- 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.)
- Expired - Fee Related
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
- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
-
- 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
- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
-
- 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
Abstract
The invention relates to a single-winged vacuum pump provided with a pot-shaped housing (12), a rotor (18) which is mounted in a rotational and eccentric manner in the housing, a wing (20) which is displacably mounted in the rotor and which is orthogonal to the rotational axis, whereby the points of the wings are placed on the peripheral surface (22) which defines a work chamber (30) and which subdivides the work chamber into a suction chamber (40) and a pressure chamber (42), and the suction chamber is provided with an air inlet and the pressure chamber is provided with an air outlet (48). The air outlet is arranged in the peripheral surface surrounding the pressure chamber (42).
Description
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, which with the points of the blade abut on a peripheral surface bordering on an expansion chamber and thus subdivides the expansion chamber into an inlet chamber and a pressure chamber, and the inlet chamber is provided with an air inlet opening and the pressure chamber with an air exhaust outlet.
Vacuum pumps of this type are known. As a rule, they comprise a housing in which the rotor is rotatably mounted, wherein the rotor is located in an expansion chamber. Vacuum pumps of this type, among other things, also are used in motor vehicles, where, for example, the engine of the vehicle puts the rotor into motion. Said vacuum pumps are lubricated with oil, which also serves to seal the sealing gap between the blade and the expansion chamber. It is suggested to let as little oil as possible flow out from the air exhaust outlet of the combustion chamber of the expansion chamber.
It is the object of the present invention to provide a vacuum pump, in which the air leaving the pressure chamber is burdened with less oil.
In view of the foregoing, the problem is solved in accordance with the invention in that the air exhaust outlet is arranged in the peripheral surface surrounding the pressure chamber.
With a single-blade vacuum pump, the aforesaid problem is solved in accordance with the invention in that the air exhaust outlet is arranged in the peripheral surface surrounding the pressure chamber.
With the single blade vacuum pump according to the invention, the air exhaust outlet is located in the peripheral surface surrounding the pressure chamber rather than, as with the prior art, in the base of the pressure chamber, which is penetrated by the rotor. On account of the configuration of the outlet in the peripheral wall, this creates a major advantage in that the size of the cross-section of the opening can be formed larger than if said opening was provided in the base. Consequently, the compression chamber is evacuated more quickly, and less energy is required to expel the sucked-in air from the pressure chamber. Further, by varying the form of the pressure chamber, a gradual opening is effected. For example, the opening edge can be slanted, so that the exhaust outlet initially is available with a small cross-section, which gradually increases in size. This prevents pressure surges.
In an improvement, it is provided that an outlet valve is connected directly to the air exhaust outlet. This has a major advantage in that the clearance volume from which the air cannot be exhausted, i.e., the space between the
Vacuum pumps of this type are known. As a rule, they comprise a housing in which the rotor is rotatably mounted, wherein the rotor is located in an expansion chamber. Vacuum pumps of this type, among other things, also are used in motor vehicles, where, for example, the engine of the vehicle puts the rotor into motion. Said vacuum pumps are lubricated with oil, which also serves to seal the sealing gap between the blade and the expansion chamber. It is suggested to let as little oil as possible flow out from the air exhaust outlet of the combustion chamber of the expansion chamber.
It is the object of the present invention to provide a vacuum pump, in which the air leaving the pressure chamber is burdened with less oil.
In view of the foregoing, the problem is solved in accordance with the invention in that the air exhaust outlet is arranged in the peripheral surface surrounding the pressure chamber.
With a single-blade vacuum pump, the aforesaid problem is solved in accordance with the invention in that the air exhaust outlet is arranged in the peripheral surface surrounding the pressure chamber.
With the single blade vacuum pump according to the invention, the air exhaust outlet is located in the peripheral surface surrounding the pressure chamber rather than, as with the prior art, in the base of the pressure chamber, which is penetrated by the rotor. On account of the configuration of the outlet in the peripheral wall, this creates a major advantage in that the size of the cross-section of the opening can be formed larger than if said opening was provided in the base. Consequently, the compression chamber is evacuated more quickly, and less energy is required to expel the sucked-in air from the pressure chamber. Further, by varying the form of the pressure chamber, a gradual opening is effected. For example, the opening edge can be slanted, so that the exhaust outlet initially is available with a small cross-section, which gradually increases in size. This prevents pressure surges.
In an improvement, it is provided that an outlet valve is connected directly to the air exhaust outlet. This has a major advantage in that the clearance volume from which the air cannot be exhausted, i.e., the space between the
2 inner peripheral surface of the pressure chamber and the exhaust valve itself is limited to a minimum.
Preferably the exhaust valve is arranged in the peripheral wall of the housing. This configuration is very space-saving and it avoids the housing at the outside from being provided with additions.
Preferably, the exhaust valve is a leaf spring valve.
Valves of this type respond fast and require a very small construction space and above all are low in cost. If the rear of the exhaust valve is level, the leaf spring valve optimally abuts on the edge of the exhaust valve without requiring special clamping means. The exhaust valve thus is closed during the suction process and opens to exhaust the air.
In a preferred embodiment the air exhaust outlet is provided with an insert, wherein the insert forms a section of the peripheral surface of the pressure chamber or is integrated in the housing wall. As a result of the insert, the size and, if appropriate, the shape of the air exhaust outlet can be determined. With an insert integrated in the housing wall, the possibility is created that the exhaust outlet ends in a duct, which leaves the housing, for example, in the axial direction. The radially or tangentially exiting air thus is diverted in the insert in the axial direction. This diversion duct is located in the insert, which, for example, is an injection-molded part, so that the housing requires no costly processing.
Preferably the exhaust valve is arranged in the peripheral wall of the housing. This configuration is very space-saving and it avoids the housing at the outside from being provided with additions.
Preferably, the exhaust valve is a leaf spring valve.
Valves of this type respond fast and require a very small construction space and above all are low in cost. If the rear of the exhaust valve is level, the leaf spring valve optimally abuts on the edge of the exhaust valve without requiring special clamping means. The exhaust valve thus is closed during the suction process and opens to exhaust the air.
In a preferred embodiment the air exhaust outlet is provided with an insert, wherein the insert forms a section of the peripheral surface of the pressure chamber or is integrated in the housing wall. As a result of the insert, the size and, if appropriate, the shape of the air exhaust outlet can be determined. With an insert integrated in the housing wall, the possibility is created that the exhaust outlet ends in a duct, which leaves the housing, for example, in the axial direction. The radially or tangentially exiting air thus is diverted in the insert in the axial direction. This diversion duct is located in the insert, which, for example, is an injection-molded part, so that the housing requires no costly processing.
3 An inventive variant provides that an oil outlet is provided in the peripheral surface surrounding the inlet chamber. If the rotor rotates in reverse, irrespective of any reason whatsoever, the lubricant accumulated in the inlet chamber can be drained off from the oil outlet, since the suction opening prevents, via a corresponding valve, the taken-in air and lubricant from being ejected again. This air and the lubricant now escape through the oil outlet.
According to the invention, the outlet valve abuts directly on the oil outlet. Said valve prevents air and/or oil from being sucked in via the oil outlet when the pump is in normal operation.
According to the invention, the outlet valve is arranged in the peripheral wall of the housing. This produces the aforesaid advantages relating to the outlet valve of the air exhaust outlet. Said outlet valve can be structured as a leaf spring valve and be disadvantageous, and both the exhaust valve of the oil outlet and the outlet valve of the air exhaust outlet can be formed by a single component. Said single component in the form of a leaf spring valve, for example, is a stamped-out sheet metal part comprising two spring tongues.
According to the invention, the outlet valve abuts directly on the oil outlet. Said valve prevents air and/or oil from being sucked in via the oil outlet when the pump is in normal operation.
According to the invention, the outlet valve is arranged in the peripheral wall of the housing. This produces the aforesaid advantages relating to the outlet valve of the air exhaust outlet. Said outlet valve can be structured as a leaf spring valve and be disadvantageous, and both the exhaust valve of the oil outlet and the outlet valve of the air exhaust outlet can be formed by a single component. Said single component in the form of a leaf spring valve, for example, is a stamped-out sheet metal part comprising two spring tongues.
4 According to the invention, the oil outlet is provided in an insert, wherein the insert forms part of the peripheral surface of the expansion chamber and/or the inlet chamber.
As a result, the inlet expands from the pressure chamber to the inlet chamber, wherein the insert as an improvement extends over the overall height of the inner peripheral surface. Furthermore, an optimum seal of the inner peripheral wall opposite the rotor can be created by means of the insert. The insert, according to the invention, consists of an elastic material, especially a synthetic material.
The insert can function as support or holding element for the exhaust valve, wherein the exhaust valve is provided between the insert and the housing wall. As an alternative, the outlet valve may also be provided in the insert, wherein the outlet valve, for example, may be coated with insert material.
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 assembly of the vacuum pump;
As a result, the inlet expands from the pressure chamber to the inlet chamber, wherein the insert as an improvement extends over the overall height of the inner peripheral surface. Furthermore, an optimum seal of the inner peripheral wall opposite the rotor can be created by means of the insert. The insert, according to the invention, consists of an elastic material, especially a synthetic material.
The insert can function as support or holding element for the exhaust valve, wherein the exhaust valve is provided between the insert and the housing wall. As an alternative, the outlet valve may also be provided in the insert, wherein the outlet valve, for example, may be coated with insert material.
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 assembly of the vacuum pump;
5 Figure 2 shows a perspective view of the housing without rotor and blade, which shows the two exhaust outlets in the peripheral walls.
Figure 1 shows the vacuum pump with the overall reference symbol 10 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 18 with the overall designation, wherein a blade 20 is rotatably mounted orthogonally to the axis of rotation 21.
The rotor 18 comprises a rotor housing 24 with which said rotor abuts on an inner peripheral surface 22 of an expansion chamber 30. The rotor 18 passes through the housing 12, especially a base 26 of the interior 16 via a drive opening 28, and at the rear projects from the housing 12, so that said rotor (by means of a drive, which is not shown) can be 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. The interior 16 is subdivided by the blade 20 into an inlet chamber 40 and a pressure chamber 42.
Figure 1 also shows that an insert 38 is located in the housing wall 36, which is positioned at the transition from inlet chamber 40 to pressure chamber 42.
In Figure 2, this transition is designated with reference number 44, wherein said transition 44 also abuts on the peripheral wall 46 of the circular cylindrical rotor housing 24 at the inner peripheral surface 22. The figure clearly indicates that in this area of the transition 44, both an air exhaust outlet 48 and an oil outlet 50 is
Figure 1 shows the vacuum pump with the overall reference symbol 10 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 18 with the overall designation, wherein a blade 20 is rotatably mounted orthogonally to the axis of rotation 21.
The rotor 18 comprises a rotor housing 24 with which said rotor abuts on an inner peripheral surface 22 of an expansion chamber 30. The rotor 18 passes through the housing 12, especially a base 26 of the interior 16 via a drive opening 28, and at the rear projects from the housing 12, so that said rotor (by means of a drive, which is not shown) can be 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. The interior 16 is subdivided by the blade 20 into an inlet chamber 40 and a pressure chamber 42.
Figure 1 also shows that an insert 38 is located in the housing wall 36, which is positioned at the transition from inlet chamber 40 to pressure chamber 42.
In Figure 2, this transition is designated with reference number 44, wherein said transition 44 also abuts on the peripheral wall 46 of the circular cylindrical rotor housing 24 at the inner peripheral surface 22. The figure clearly indicates that in this area of the transition 44, both an air exhaust outlet 48 and an oil outlet 50 is
6 located in the inner peripheral surface. The air exhaust outlet 48 extends over part of the height of the inner circumferential surface 22, which then extends over the entire height of the inner peripheral surface 22 or at least over a major part of said height.
Furthermore, the air exhaust outlet 48 extends in the peripheral direction away from the transition 44 and ends in a oblique front edge 52. This prevents the air exhaust outlet 48 from suddenly opening and/or the pressure chamber 42 from being connected too quickly to the air exhaust outlet 48, as a result of which pressure surges could develop. The gradual opening is supported in that the duct of the air exhaust outlet 48 in the direction of rotation of the blade 20 (arrow 54 according to Figure 1) gradually increases in radial depth.
The air exhaust outlet 48 ends in the insert 38, which in Figure 2 is represented above an opening 56 accommodating the insert 38. In the insert 38, the duct of the air exhaust outlet 48 is diverted downward, so that the ejected gas leaves the housing 12 downward in the direction of the axis of the opening 56.
Between the insert 38 and the air exhaust outlet 48, a valve body 38 is located in which an exhaust valve 60 is provided. The valve body 58 has another exhaust valve 62, which is allocated to the oil outlet 50 and closes said opening. Both exhaust valves 60 and 62 are formed as leaf spring valves, and both open in the direction of the insert 38 and thus prevent suction through the openings 48 and 50 in the direction of the inner space 16. For the exact positioning of the valve body 58, the insert 38
Furthermore, the air exhaust outlet 48 extends in the peripheral direction away from the transition 44 and ends in a oblique front edge 52. This prevents the air exhaust outlet 48 from suddenly opening and/or the pressure chamber 42 from being connected too quickly to the air exhaust outlet 48, as a result of which pressure surges could develop. The gradual opening is supported in that the duct of the air exhaust outlet 48 in the direction of rotation of the blade 20 (arrow 54 according to Figure 1) gradually increases in radial depth.
The air exhaust outlet 48 ends in the insert 38, which in Figure 2 is represented above an opening 56 accommodating the insert 38. In the insert 38, the duct of the air exhaust outlet 48 is diverted downward, so that the ejected gas leaves the housing 12 downward in the direction of the axis of the opening 56.
Between the insert 38 and the air exhaust outlet 48, a valve body 38 is located in which an exhaust valve 60 is provided. The valve body 58 has another exhaust valve 62, which is allocated to the oil outlet 50 and closes said opening. Both exhaust valves 60 and 62 are formed as leaf spring valves, and both open in the direction of the insert 38 and thus prevent suction through the openings 48 and 50 in the direction of the inner space 16. For the exact positioning of the valve body 58, the insert 38
7 comprises a recess 64, which in terms of shape and thickness corresponds to the valve body 58, in which the valve body 58 is inserted prior to sliding the insert 38 into the opening 56.
The air exhaust outlet 48 is provided in the inner peripheral surface 22, whose size in terms of height and length is adjustable to the volume to be discharged; the torque required for the discharge is reduced to a minimum by applying a simple method. The power consumption of the vacuum pump 10 thus is reduced.
The air exhaust outlet 48 is provided in the inner peripheral surface 22, whose size in terms of height and length is adjustable to the volume to be discharged; the torque required for the discharge is reduced to a minimum by applying a simple method. The power consumption of the vacuum pump 10 thus is reduced.
8
Claims (14)
1. A single-blade vacuum pump (10) with a pot-shaped housing (12), a rotor (18) which is eccentrically rotated in the housing (12), a blade (20) which in the axis of rotation (21) is rotatably mounted in the rotor orthogonally in relation to the axis of rotation (21), which with the points of the blade abut on a peripheral surface bordering on an expansion chamber (30) and thus subdivides the expansion chamber (30) into an inlet chamber (40) and a pressure chamber (42), and the inlet chamber is provided with an air inlet opening and the pressure chamber (42) with an air exhaust outlet (48), wherein the air exhaust outlet (48) is arranged in the inner peripheral surface (22) surrounding the pressure chamber (42), and wherein the air exhaust outlet (48) is provided in an insert (38) and said insert (38) forms a section of the inner peripheral surface (22).
2. A single-blade vacuum pump as defined in claim 1, wherein a first outlet valve (60) abuts directly on the air exhaust outlet (48).
3. A single-blade vacuum pump as defined in claim 2, wherein the first outlet valve (60) is arranged in the peripheral wall (36) of the housing (12).
4. A single-blade vacuum pump as defined in claim 2 or 3, wherein the first outlet valve (60) is a leaf spring valve.
5. A single-blade vacuum pump as defined in any one of claims 2 to 4, wherein in the inner peripheral surface (22) surrounding the inlet chamber (40) an oil outlet (50) is provided.
6. A single-blade vacuum pump as defined in claim 5, wherein a second outlet valve (62) abuts directly on the oil outlet (50).
7. A single-blade vacuum pump as defined in claim 6, wherein the second outlet valve (62) is arranged in the peripheral wall (36) of the housing (12).
8. A single-blade vacuum pump as defined in claim 5 or 6, wherein the second outlet valve (62) is a leaf spring valve.
9. A single-blade vacuum pump as defined in any one of claims 6 to 8, wherein the first outlet valve (60) and the second outlet valve (62) are formed by a single component.
10. A single-blade vacuum pump as defined in any one of claims 6 to 9, wherein the oil outlet (50) is provided in insert (38) and said insert (38) forms a section of the inner peripheral surface (22).
11. A single-blade vacuum pump as defined in any one of claims 6 to 10, wherein the insert is formed as single component.
12. A single-blade vacuum pump as defined in any one of claims 6 to 11, wherein the insert (38) is made of synthetic material.
13. A single-blade vacuum pump as defined in any one of claims 6 to 12, wherein the first outlet valve (60) and the second outlet valve (62) are located between the insert 38 and the housing wall (36).
14. A single-blade vacuum pump as defined in any one of claims 6 to 13, wherein the first outlet valve (60) and the second outlet valve (62) integrate the insert (38).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004034926A DE102004034926B3 (en) | 2004-07-09 | 2004-07-09 | A single-blade |
| DE102004034926.6 | 2004-07-09 | ||
| PCT/EP2005/004212 WO2006005383A1 (en) | 2004-07-09 | 2005-04-20 | Single-winged vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2575780A1 CA2575780A1 (en) | 2006-01-19 |
| CA2575780C true CA2575780C (en) | 2015-07-07 |
Family
ID=34966845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2575780A Expired - Fee Related CA2575780C (en) | 2004-07-09 | 2005-04-20 | Single-blade vacuum pump |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1766239B1 (en) |
| KR (1) | KR20070034090A (en) |
| CN (1) | CN101002022B (en) |
| CA (1) | CA2575780C (en) |
| DE (2) | DE102004034926B3 (en) |
| WO (1) | WO2006005383A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20051008A1 (en) | 2005-05-30 | 2006-11-30 | O M P Officine Mazzocco Pagnon | MOTOR DEPRESSOR FOR MOTOR VEHICLES AND NON-RETURN VALVE FOR THIS HEADER |
| ATE479844T1 (en) * | 2006-07-21 | 2010-09-15 | Ixetic Hueckeswagen Gmbh | VACUUM PUMP |
| EP2047105A1 (en) * | 2006-07-21 | 2009-04-15 | ixetic Hückeswagen GmbH | Vacuum pump |
| DE102007001593B4 (en) * | 2007-01-04 | 2009-12-31 | Joma-Polytec Kunststofftechnik Gmbh | vacuum pump |
| DE102007018247A1 (en) | 2007-04-12 | 2008-10-16 | Joma-Hydromechanic Gmbh | vacuum pump |
| DE102010007255A1 (en) | 2010-02-09 | 2011-08-11 | Bayerische Motoren Werke Aktiengesellschaft, 80809 | Fluid pump for use in machine housing, has rotary shaft arranged in fluid delivery volume, where impeller is arranged at shaft |
| DE102010044898A1 (en) * | 2010-09-09 | 2012-03-15 | Schwäbische Hüttenwerke Automotive GmbH | Vacuum pump with ventilation device |
| KR101307912B1 (en) * | 2011-07-27 | 2013-09-13 | (주)모토닉 | Electric vacuum pump |
| KR200470937Y1 (en) * | 2012-11-14 | 2014-02-05 | 금강정밀(주) | The structure of the vacuum pump equipped with a vacuum suction vehicles |
| DE102013200410B4 (en) | 2013-01-14 | 2017-12-07 | Schwäbische Hüttenwerke Automotive GmbH | Gas pump with pressure relief to reduce the starting torque |
| CN104747446B (en) * | 2015-01-27 | 2017-06-20 | 长城汽车股份有限公司 | A kind of vavuum pump, brakes and automobile |
| EP3078858A1 (en) * | 2015-04-07 | 2016-10-12 | WABCO Europe BVBA | Compact, highly integrated, oil lubricated electric vacuum compressor |
| CN107636312B (en) * | 2015-06-02 | 2019-08-13 | 皮尔伯格泵技术有限责任公司 | Automobile vacuum pump |
| EP3337980A1 (en) * | 2015-08-19 | 2018-06-27 | Pierburg Pump Technology GmbH | Lubricated automotive vacuum pump |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191218254A (en) * | 1911-08-10 | 1900-01-01 | Baudot Joseph | Improvements in Rotary Pumps and Motors. |
| US1781073A (en) * | 1928-06-16 | 1930-11-11 | Keystone Refrigerating Corp | Rotary compressor |
| CH249478A (en) * | 1947-01-21 | 1947-06-30 | Wuetrich Ernst | Rotary piston machine for conveying liquid or gaseous media. |
| GB1214185A (en) * | 1968-02-28 | 1970-12-02 | Labortechnik Ilmenau Veb | Liquid sealed rotary gas pump |
| US4133617A (en) * | 1976-01-27 | 1979-01-09 | Thomas Roach | Vane type pump with optional high rate of flow or high pressure characteristics |
| DE3307856C2 (en) * | 1983-03-05 | 1997-10-23 | Gnieser Gmbh Auto Technik | Pressure valve of a rotary piston compressor |
| DE4019854B4 (en) * | 1989-07-10 | 2004-09-16 | Saurer Gmbh & Co. Kg | Vane vacuum pump |
| DE4033420C2 (en) * | 1990-10-20 | 1999-09-02 | Bosch Gmbh Robert | Pressure valve |
| DE4118934C2 (en) * | 1991-06-08 | 2001-04-05 | Bosch Gmbh Robert | compressor |
| CN2219973Y (en) * | 1995-03-28 | 1996-02-14 | 陈时云 | Blade type vacuum pump |
| JP2000205159A (en) * | 1999-01-11 | 2000-07-25 | Hitachi Ltd | Vane type vacuum pump |
| DE29920737U1 (en) * | 1999-11-26 | 2000-02-03 | Leybold Vakuum Gmbh | Vacuum pump with outlet |
| EP1134417B1 (en) * | 2000-03-15 | 2003-09-24 | Joma-Hydromechanic GmbH | Positive displacement pump |
| KR100408152B1 (en) * | 2001-08-14 | 2003-12-01 | 주식회사 우성진공 | Cylinder structure of vacuum pump |
| DE10393279D2 (en) * | 2002-11-13 | 2005-06-02 | Luk Automobiltech Gmbh & Co Kg | vacuum pump |
-
2004
- 2004-07-09 DE DE102004034926A patent/DE102004034926B3/en not_active Expired - Fee Related
-
2005
- 2005-04-20 CN CN2005800270419A patent/CN101002022B/en not_active Expired - Fee Related
- 2005-04-20 KR KR1020077003038A patent/KR20070034090A/en not_active Application Discontinuation
- 2005-04-20 CA CA2575780A patent/CA2575780C/en not_active Expired - Fee Related
- 2005-04-20 DE DE502005006154T patent/DE502005006154D1/en not_active Expired - Fee Related
- 2005-04-20 EP EP05739759A patent/EP1766239B1/en not_active Expired - Fee Related
- 2005-04-20 WO PCT/EP2005/004212 patent/WO2006005383A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004034926B3 (en) | 2005-12-29 |
| WO2006005383A1 (en) | 2006-01-19 |
| CN101002022B (en) | 2012-06-06 |
| EP1766239A1 (en) | 2007-03-28 |
| KR20070034090A (en) | 2007-03-27 |
| CN101002022A (en) | 2007-07-18 |
| EP1766239B1 (en) | 2008-12-03 |
| DE502005006154D1 (en) | 2009-01-15 |
| CA2575780A1 (en) | 2006-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2575780C (en) | Single-blade vacuum pump | |
| JPH0712072A (en) | Vane compressor | |
| US9429155B2 (en) | Tapered sound outlet vane pump | |
| KR101520526B1 (en) | Vane rotary compressor | |
| KR100338266B1 (en) | Rotary compressor | |
| US20190101119A1 (en) | Compressor | |
| US3799707A (en) | Rotary compressor | |
| JP2015073375A (en) | Electric vacuum pump | |
| US9175685B2 (en) | Liquid ring pump with gas scavenge device | |
| JP2008163874A (en) | Rotary compressor | |
| CN109154294B (en) | Dry-running vane air pump | |
| JP3160073B2 (en) | compressor | |
| KR100590650B1 (en) | Vaccum pump for vehicle | |
| JP4898721B2 (en) | Vane type compressor | |
| KR101684549B1 (en) | Rotary vacuum pump | |
| WO2018088960A1 (en) | A revolving vane compressor and method of operating and manufacturing the same | |
| JPH10103274A (en) | Rotary compressor | |
| EP3303843B1 (en) | Automotive vacuum pump | |
| KR20080019954A (en) | Rotary compressor | |
| KR0168263B1 (en) | Motor pump type rotary compressor | |
| KR101148666B1 (en) | Discharging system of vane rotating type compressor | |
| JPS6346710Y2 (en) | ||
| JPH09144678A (en) | Vane type vacuum pump | |
| JP4171252B2 (en) | Gas compressor | |
| JPH10252676A (en) | Cylinder for gas compressor, and gas compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180420 |